Sustainability of construction works - Assessment of economic performance of buildings - Calculation methods

This European Standard specifies the calculation methods, based on Life Cycle Costing (LCC) and other quantified economic information, to assess the economic performance of a building, and gives the means for the reporting and communication of the outcome of the assessment. This European Standard is applicable to new and existing buildings and refurbishment projects.
This European Standard gives:
—   the description of the object of assessment;
—   the system boundary that applies at the building level;
—   the scope and procedure to be used for the analysis;
—   the list of indicators and procedures for the calculations of these indicators;
—   the requirements for presentation of the results in reporting and communication;
—   and the requirements for the data necessary for the calculation.
The approach to the assessment covers all stages of the building life cycle and includes all building related construction products, processes and services, used over the life cycle of the building.
The interpretation and value judgments of the results of the assessment are not within the scope of this European Standard.

Nachhaltigkeit von Bauwerken - Bewertung der ökonomischen Qualität von Gebäuden - Berechnungsmethoden

Diese Europäische Norm legt Berechnungsmethoden zur Bewertung der ökonomischen Qualität eines Gebäudes fest und stellt basierend auf den Lebenszykluskosten (en: Life Cycle Costing, LCC) und anderen quantifizierten ökonomischen Daten fest und stellt Hilfsmittel für das Berichtswesen und die Kommunikation des Ergebnisses dieser Bewertung zur Verfügung. Diese Europäische Norm gilt für neue und bereits bestehende Gebäude sowie für Modernisierungen.
Diese Europäische Norm enthält:
   die Beschreibung des Zwecks der Bewertung;
   die auf der Gebäudeebene geltende Systemgrenze;
   den Anwendungsbereich und das bei der Analyse anzuwendende Verfahren;
   eine Liste von Indikatoren und Verfahren zur Berechnung dieser Indikatoren;
   die Anforderungen an die Darstellung der Ergebnisse im Berichtswesen und bei der Kommunikation; und
   die Anforderungen an die für die Berechnung benötigten Daten.
Dieser Bewertungsansatz deckt alle Phasen des Gebäudelebenszyklus ab und schließt sämtliche im Verlauf des gesamten Lebenszyklus des betreffenden Gebäudes verwendeten gebäudebezogenen Bauprodukte,  prozesse und  dienstleistungen mit ein.
Die Auslegung und Beurteilung der Ergebnisse der Bewertung liegen nicht im Anwendungsbereich dieser Europäischen Norm.

Contribution des ouvrages de construction au développement durable - Evaluation de la performance économique des bâtiments - Méthodes de calcul

La présente Norme européenne spécifie les méthodes de calcul fondées sur l'approche en coût global (LCC) et d’autres informations économiques quantifiées, qui permettent d’évaluer la performance économique d’un bâtiment. Elle indique également les outils requis pour la production de rapports et la communication des résultats de cette évaluation. La présente Norme européenne s’applique aux bâtiments neufs et existants, ainsi qu’aux projets de réhabilitation.
Cette Norme européenne précise :
-   la description de l’objet de l’évaluation ;
-   la frontière du système qui s’applique à l’échelle du bâtiment ;
-   le domaine d'application et la procédure à suivre pour l'analyse ;
-   la liste des indicateurs et de leurs procédures de calcul ;
-   les exigences relatives à la présentation des résultats dans les rapports et la communication ;
-   et les exigences relatives aux données nécessaires aux calculs.
L'approche adoptée pour l'évaluation couvre toutes les phases du cycle de vie du bâtiment et inclut tous les produits de construction, processus et services liés au bâtiment et utilisés tout au long du cycle de vie de ce bâtiment.
L’interprétation et les jugements de valeur des résultats de l’évaluation n’entrent pas dans le domaine d’application de la présente Norme européenne.

Trajnostnost gradbenih objektov - Ocenjevanje ekonomskih lastnosti stavb - Računska metoda

Ta evropski standard določa računsko metodo, ki temelji na izračunu stroškov v življenjskem cilku (LCC) in drugih količinsko določenih ekonomski informacij, za ocenjevanje ekonomskih lastnosti stavb, in podaja sredstva za poročanje in komunikacijo o rezultatu ocene. Ta evropski standard se uporablja za nove in obstoječe zgradbe in obnovitvene projekte.
Ta evropski standard določa:
– opis predmeta ocene;
– mejo sistema, ki velja za raven stavbe;
– področje uporabe in postopek za analizo;
– seznam indikatorjev in postopkov za izračune teh indikatorjev;
– zahteve za predstavitev rezultatov pri poročanju in komuniciranju;
– zahteve za podatke, ki so potrebni za izračun.
Pristop k oceni zajema vse faze življenjskega cikla stavbe in vključuje vse gradbene proizvode, postopke in storitve, povezane s stavbo, uporabljene v celotnem življenjskem ciklu stavbe.
Razlage in vrednostne ocene rezultatov niso zajete v tem evropskem standardu

General Information

Status
Published
Public Enquiry End Date
14-Oct-2013
Publication Date
04-Aug-2015
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
06-Jul-2015
Due Date
10-Sep-2015
Completion Date
05-Aug-2015

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Nachhaltigkeit von Bauwerken - Bewertung der ökonomischen Qualität von Gebäuden - BerechnungsmethodenContribution des ouvrages de construction au développement durable - Evaluation de la performance économique des bâtiments - Méthodes de calculSustainability of construction works - Assessment of economic performance of buildings - Calculation methods91.040.01Stavbe na splošnoBuildings in general13.020.20Okoljevarstvena ekonomikaEnvironmental economicsICS:Ta slovenski standard je istoveten z:EN 16627:2015SIST EN 16627:2015en,fr,de01-september-2015SIST EN 16627:2015SLOVENSKI
STANDARD



SIST EN 16627:2015



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16627
June 2015 ICS 91.040.01 English Version
Sustainability of construction works - Assessment of economic performance of buildings - Calculation methods
Contribution des ouvrages de construction au développement durable - Évaluation de la performance économique des bâtiments - Méthodes de calcul
Nachhaltigkeit von Bauwerken - Bewertung der ökonomischen Qualität von Gebäuden - Berechnungsmethoden This European Standard was approved by CEN on 19 March 2015.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16627:2015 ESIST EN 16627:2015



EN 16627:2015 (E) 2 Contents Page Foreword .4 Introduction .5 1 Scope .9 2 Normative references .9 3 Terms and definitions . 10 4 Abbreviations . 19 5 The process for setting up the calculations required for the assessment . 20 6 Purpose of the assessment . 21 6.1 General . 21 6.2 Expected users . 21 7 Specification of the object of assessment . 21 7.1 General . 21 7.2 Functional equivalent . 22 7.3 Reference study period . 23 7.4 System boundary . 24 7.4.1 General . 24 7.4.2 Boundary of the before use stage (Modules A0-A5) . 25 7.4.3 Boundaries of the use stage (Modules B1 – B7) . 28 7.4.4 Boundary of the end of life stage (Modules C1 – C4) . 32 7.4.5 Boundary for the benefits and loads beyond the system boundary (Module D)) . 34 7.5 The building model . 34 7.5.1 Purpose and information needed . 34 7.5.2 Description of the physical characteristics of the building . 35 8 Scenarios for defining the building life cycle . 36 8.1 General . 36 8.2 Requirements for scenarios . 36 8.3 Time-related characteristics and associated scenarios . 36 8.3.1 General . 36 8.3.2 Climate conditions . 37 8.3.3 Other specific requirements for scenarios . 37 8.4 Scenarios for the pre-construction stage (Module A0). 37 8.5 Scenarios for the product and construction process stages (Modules A1 – A5) . 37 8.6 Scenarios for use stage (modules B1 to B7) . 38 8.6.1 General . 38 8.6.2 Scenario related to use stage (except energy and water) – Module B1 . 38 8.6.3 Scenarios for maintenance, repair, replacement – Module B2, B3 and B4 . 38 8.6.4 Scenarios for refurbishment – Module B5 . 39 8.6.5 Scenarios for operational energy use – Module B6 . 39 8.6.6 Scenarios for operational water use (Module B7) . 39 8.7 Scenarios for the end of life stage (Modules C1 to C4) . 40 8.7.1 General . 40 8.7.2 Scenarios for deconstruction – Module C1 . 40 8.7.3 Scenarios for transport – Module C2 . 40 8.7.4 Scenarios for waste processing for reuse, recycling and energy recovery – Module C3 . 40 8.7.5 Scenarios for disposal – Module C4 . 40 SIST EN 16627:2015



EN 16627:2015 (E) 3 8.8 Scenarios beyond the system boundary – Module D . 40 9 Calculation of costs and income related to the building over its life cycle . 41 9.1 General . 41 9.2 Calculation of pre-construction costs . 41 9.3 Calculation of construction costs . 41 9.4 Calculation of costs of operation in use, maintenance and repair (B1-B3) . 43 9.5 Calculating costs for replacements (B4) . 45 9.5.1 Components that will not be replaced under defined conditions . 45 9.5.2 Replaceable components and costs . 45 9.5.3 Cost of replacements . 46 9.6 Calculation of energy costs (B6) . 46 9.7 Calculation of costs of operational water use . 47 9.8 Calculation of additional cost and income related information (information module D) . 47 9.9 VAT . 47 10 Selection of economic data for economic assessment . 47 10.1 General . 47 10.2 Specification of the discount rate . 47 10.3 Escalation rates . 48 10.4 Data quality . 48 11 Calculation of the economic indicators . 48 11.1 Methods for assessing the economic indicators . 48 11.2 Calculation of the discount factor . 49 11.3 Net Present Value (NPV), Net Present Cost (NPC) . 49 11.4 Annual Cost and Annual Equivalent Value (AC or AEV) . 49 11.5 Other economic indicators . 49 11.6 Costs and related indicators . 49 11.7 Calculation methods . 49 12 Reporting of the assessment of results . 50 12.1 General information on the assessment . 50 12.2 General information on the object of assessment . 50 12.3 Statement of boundaries and scenarios used in the assessment . 51 12.4 Data sources . 51 12.5 Expression of results . 51 12.6 Communication of assessment results . 52 13 Verification of results . 52 Annex A (informative)
Example building description . 54 Annex B (informative)
Exported energy – Case studies . 56 B.1 General . 56 B.2 Case 1 . 56 B.3 Case 2 . 57 B.4 Case 3 . 57 B.5 Case 4 . 58 Annex C (informative)
Additional indicators to assess the economic performance of buildings – Rules for assessment . 60 C.1 General . 60 C.2 Value stability and performance . 60 C.2.1 General . 60 C.2.2 Value stability in a short-term perspective . 60 C.2.3 Value stability and performance in a medium-to long-term perspective . 60 C.2.4 Additional economic indicators used in ISO 15686-5 . 61 Bibliography . 62
SIST EN 16627:2015



EN 16627:2015 (E) 4 Foreword This document (EN 16627:2015) has been prepared by Technical Committee CEN/TC 350 “Sustainability of construction works”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2015 and conflicting national standards shall be withdrawn at the latest by December 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16627:2015



EN 16627:2015 (E) 5 Introduction The purpose of this European Standard is to provide calculation rules for the assessment of the economic performance of new and existing buildings as one part of an assessment of the sustainability of the building. It complements the European Standard EN 15643-4. In EN 15643-4 the following economic assessment indicators are described: This standard describes the methods and the rules for calculating the cash flows over the life cycle of buildings, with an emphasis on the field of life cycle costing. Principles developed in ISO 15686-5 are included, but have been adapted for sustainability assessment in the European context. This standard describes two approaches to the calculation of economic performance: a) Life Cycle Costing: Economic performance expressed in cost terms over the life cycle, taking account of negative costs related to energy exports and from re-use and recycling of parts of the building during its life cycle and at the end of life. Calculation of this indicator is mandatory for compliance with the standard. b) Life cycle economic balance: Life Cycle Costing (see above) and in addition incomes over the life cycle and at the end of life. Calculation of this additional indicator is optional for compliance with the standard. NOTE 1 Annex C describes a further optional approach, value stability. This European Standard is part of a suite of European Standards, Technical Specifications and Technical Reports for the assessment of the economic performance of buildings that together support quantification of the contribution of the assessed building to sustainable construction and sustainable development. The economic performance of a building is only one aspect of its sustainability. The environmental and social performance of the building are also aspects of sustainability that are assessed as part of a sustainability assessment. These are described in the framework standards (EN 15643-1, EN 15643-2, and EN 15643-3, EN 15643-4). NOTE 2 The economic assessment is undertaken at the building level. However, it requires technical and cost information about individual products and components within the building and its services and systems, including service life data, type and frequency of inspection, replacement, cleaning, maintenance and repair, and deconstruction and disposal. This information is used as input quantities for the calculation of cost in the life cycle of buildings. The evaluation of technical and functional performance is beyond the scope of this European Standard. Technical and functional characteristics are taken into account here by reference to the functional equivalent, which also forms a basis for comparison of the results of assessments. This European Standard is intended to support the decision-making process and documentation of the assessment of the economic performance of a building. Although the assessment results are based on realistic scenarios, they may not fully reflect the actual and future performance of the building. Figure 1 illustrates how the assessment of the economic performance takes place within the concept of the sustainability assessment of buildings. SIST EN 16627:2015



EN 16627:2015 (E) 6
Figure 1 — Concept of sustainability assessment of buildings In this European Standard, the assessment method for the quantitative evaluation of the economic performance of the building is based on a life cycle, cash flow approach. The general requirements for sustainability assessment of buildings are described in EN 15643-1 (the general framework standard). It is important to use a consistent model for describing and recording the building and its life cycle for assessing the environmental, social and economic performance. The same reference study period is used for all three elements of the assessment. Additional specific requirements for the assessment of economic performance are given in EN 15643-4, including additional pre-construction activity and costs such as site costs and professional fees, which are quantified and reported in the additional information module A0. The calculation of economic indicators uses a model of the building and its life cycle with associated time and financial costs. An economic performance assessment supports a complete sustainability assessment, including an environmental or social performance assessment or both. The economic assessment can also provide data for: — budgeting, by estimation of future maintenance or operational costs; — tendering, e.g. by estimation of future cleaning costs sensitivity analysis, e.g. estimation of future energy costs (nominal values); — estimating end of life costs and waste streams; — specific economic analyses (e.g. cost benefit analysis); SIST EN 16627:2015



EN 16627:2015 (E) 7 — assigning cash flows to individual actors (landlord/tenant); — applying methods of valuation (e.g. investment appraisal). Other European Standards developed by CEN/TC 350 in this area, and how they are related to this European Standard, are shown in Figure 2.
Figure 2 — Work program of CEN/TC 350 NOTE 3 This European Standard is intended for use to assess the economic aspects of sustainable performance of a building. This is a distinct activity from the Commission Delegated Regulation (EU) No 244/2012 of 16 January 2012 supplementing Directive 2010/31/EU of the European Parliament and of the Council on the energy performance of buildings, which is a methodology for the setting of energy performance standards in national and regional building regulations by Member States, and not for use on specific buildings. SIST EN 16627:2015



EN 16627:2015 (E) 8 NOTE 4 EN 15459 is the European Standard which provides a calculation method for the costs of heating systems and other systems that are involved in the energy use of a building. It does not address the calculation of the whole economic impact of a building. SIST EN 16627:2015



EN 16627:2015 (E) 9 1 Scope This European Standard specifies the calculation methods, based on Life Cycle Costing (LCC) and other quantified economic information, to assess the economic performance of a building, and gives the means for the reporting and communication of the outcome of the assessment. This European Standard is applicable to new and existing buildings and refurbishment projects. This European Standard gives: — the description of the object of assessment; — the system boundary that applies at the building level; — the scope and procedure to be used for the analysis; — the list of indicators and procedures for the calculations of these indicators; — the requirements for presentation of the results in reporting and communication; — and the requirements for the data necessary for the calculation. The approach to the assessment covers all stages of the building life cycle and includes all building related construction products, processes and services, used over the life cycle of the building. The interpretation and value judgments of the results of the assessment are not within the scope of this European Standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 15603:2008, Energy performance of buildings — Overall energy use and definition of energy ratings EN 15643-1, Sustainability of construction works — Sustainability assessment of buildings — Part 1: General framework EN 15643-2:2011, Sustainability of construction works — Assessment of buildings — Part 2: Framework for the assessment of environmental performance EN 15643-3, Sustainability of construction works — Assessment of buildings — Part 3: Framework for the assessment of social performance EN 15643-4:2012, Sustainability of construction works — Assessment of buildings — Part 4: Framework for the assessment of economic performance ISO 15392:2008, Sustainability in building construction — General principles ISO 15686-1:2011, Buildings and constructed assets — Service life planning — Part 1: General principles and framework ISO 15686-2, Buildings and constructed assets — Service life planning — Part 2: Service life prediction procedures SIST EN 16627:2015



EN 16627:2015 (E) 10 ISO 15686-7, Buildings and constructed assets — Service life planning — Part 7: Performance evaluation for feedback of service life data from practice ISO 15686-8:2008, Buildings and constructed assets — Service-life planning — Part 8: Reference service life and service-life estimation 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 15643-2:2011, EN 15643-4:2012, ISO 15686-1:2011 and the following apply. 3.1 assembled system part of works component or set of components incorporated in the construction works Note 1 to entry: Adapted from the definitions in the Construction Products Directive (CPD) Guidance Paper C and from the definition of "construction" in ISO 6707-1:2014, 5.5.6. 3.2 brief written document that states the client’s requirements for a construction project [SOURCE: ISO 6707-2:2014, 3.1] 3.3 building construction works that has the provision of shelter for its occupants or contents as one of its main purposes and is usually enclosed and designed to stand permanently in one place [SOURCE: ISO 6707-1:2014, 3.1.3] 3.4 building fabric all construction products that are fixed to the building in a permanent manner, so that the dismantling of the product decreases the performance of the building and the dismantling or replacement of the product constitute construction operations 3.5 building site specified area of land where a building is located or is defined to be located and construction work of the building and associated external works are undertaken Note 1 to entry: Adapted from the definition of site in ISO 6707-1:2014, 3.1.6. 3.6 built environment collection of buildings, external works (landscape area), infrastructure and other construction works within an area Note 1 to entry: Adapted from the definition of environment in ISO 6707-1:2014, 10.3. SIST EN 16627:2015



EN 16627:2015 (E) 11 3.7 client person or organization that requires a building to be provided, altered or extended and is responsible for initiating and approving the brief [SOURCE: ISO 6707-1:2014, 8.3] 3.8 component construction product manufactured as a distinct unit to serve a specific function or functions [SOURCE: ISO 6707-1:2014, 6.1.3] 3.9 construction product item manufactured or processed for incorporation in construction works Note 1 to entry: Construction products are items supplied by a single responsible body. Note 2 to entry: Adapted from the definition in ISO 6707-1:2014, 6.1.2 according to the recommendation of ISO/TC59/AHG Terminology. 3.10 construction work activities of forming a construction works [SOURCE: ISO 6707-1:2014, 7.1.1] 3.11 construction works everything that is constructed or results from construction operations Note 1 to entry: This covers both building and civil engineering works, and both structural and non-structural elements. Note 2 to entry: Adapted from the definition in ISO 6707-1:2014, 3.1.1. 3.12 decommissioning activities that change a building or an assembled system (part of works) from an operational status to a non-operational status 3.13 delivered energy total energy, expressed per energy carrier, supplied to the technical building system through the system boundary to satisfy the uses taken into account (heating, cooling, ventilation, domestic hot water, lighting, appliances etc.) or to produce electricity Note 1 to entry: For active solar and wind energy systems the incident solar radiation on solar panels or on solar collectors or the kinetic energy of wind is not part of the energy balance of the building. Renewable energy produced on site is part of the delivered energy. Note 2 to entry: Delivered energy can be calculated for defined energy uses or it can be measured. [SOURCE: EN 15603:2008, 3.3.4] SIST EN 16627:2015



EN 16627:2015 (E) 12 3.14 design life service life intended by the designer [SOURCE: ISO 15686-1:2011, 3.3] 3.15 disposal waste treatment operation other than recovery Note 1 to entry: Adapted from the definition in Directive 2008/98/EC. 3.16 durability ability to maintain require
...

SLOVENSKI STANDARD
oSIST prEN 16627:2013
01-september-2013
7UDMQRVWQRVWJUDGEHQLKREMHNWRY9UHGQRWHQMHHNRQRPVNHJDXþLQNDNDNRYRVWL
VWDYE5DþXQVNDPHWRGD
Sustainability of construction works - Assessment of economic performance of buildings -
Calculation method
Nachhaltigkeit von Bauwerken - Bewertung der ökonomischen Qualität von Gebäuden -
Methoden
Contribution des ouvrages de construction au développement durable - Evaluation de la
performance économique des bâtiments - Méthodes de calcul
Ta slovenski standard je istoveten z: prEN 16627
ICS:
91.040.01 Stavbe na splošno Buildings in general
oSIST prEN 16627:2013 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 16627:2013

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oSIST prEN 16627:2013


EUROPEAN STANDARD
DRAFT
prEN 16627
NORME EUROPÉENNE

EUROPÄISCHE NORM

June 2013
ICS 91.040.01
English Version
Sustainability of construction works - Assessment of economic
performance of buildings - Calculation method
Contribution des ouvrages de construction au Nachhaltigkeit von Bauwerken - Bewertung der
développement durable - Evaluation de la performance ökonomischen Qualität von Gebäuden - Methoden
économique des bâtiments - Méthodes de calcul
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 350.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16627:2013: E
worldwide for CEN national Members.

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oSIST prEN 16627:2013
prEN 16627:2013 (E)
Contents Page
Foreword .4
Introduction .5
1 Scope .7
2 Normative references .7
3 Terms and definitions .8
4 Abbreviations .8
5 The process for setting up the calculations required for the assessment .8
6 Purpose of the assessment .9
7 Specification of the object of assessment . 10
7.1 General . 10
7.2 Functional equivalent . 11
7.3 Reference study period . 12
7.4 System boundary . 12
7.4.1 General . 12
7.4.2 Boundary of the Before Use Stage . 13
7.4.3 Boundaries of the use stage (Modules B1 – B7) . 15
7.4.4 Boundary of the end of life stage (Modules C1 – C4) . 20
7.4.5 Boundary for the benefits and loads beyond the system boundary (Module D) . 22
7.5 The building model . 22
7.5.1 Purpose and information needed . 22
7.5.2 Description of the physical characteristics of the building . 23
8 Scenarios for defining the building life cycle . 24
8.1 General . 24
8.2 Requirements for scenarios . 24
8.3 Time-related characteristics and associated scenarios . 24
8.3.1 General . 24
8.3.2 Climate conditions . 25
8.3.3 Other specific requirements for scenarios . 25
8.4 Scenarios for the pre-construction stage (Module A0). 25
8.5 Scenarios for the product and construction process stages (Modules A1 – A5) . 25
8.6 Scenarios for use stage (modules B1 to B7) . 26
8.6.1 General . 26
8.6.2 Scenario related to use stage (except energy and water) – Module B1 . 26
8.6.3 Scenarios for maintenance, repair, replacement – Module B2, B3 and B4 . 26
8.6.4 Scenarios for refurbishment – Module B5 . 27
8.6.5 Scenarios for operational energy use – Module B6 . 27
8.6.6 Scenarios for operational water use (Module B7) . 27
8.7 Scenarios for the end of life stage (Modules C1 to C4) . 28
8.7.1 General . 28
8.7.2 Scenarios for deconstruction – Module C1 . 28
8.7.3 Scenarios for transport – Module C2 . 28
8.7.4 Scenarios for waste processing for reuse, recycling and energy recovery – Module C3 . 28
8.7.5 Scenarios for disposal – Module C4 . 28
8.8 Scenarios for benefits and loads beyond the system boundary – Module D . 28
2

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oSIST prEN 16627:2013
prEN 16627:2013 (E)
9 Quantification of costs related to the building over its life cycle . 28
9.1 General . 28
9.2 Accounting for replacements . 29
9.2.1 Components that will not be replaced under defined conditions . 29
9.2.2 Replaceable components and costs . 29
9.3 Quantification specific to operational energy use . 29
9.4 Quantification specific to operational water use . 30
10 Selection of economic data for economic assessment . 30
10.1 General . 30
10.2 Specification of the Discount Rate . 30
10.3 Data quality . 30
11 Calculation of the economic indicators . 31
11.1 Methods for assessing the economic indicators . 31
11.1.1 General . 31
11.2 Specification of the Discount Rate . 33
11.3 Net Present Value (NPV), Net Present Cost (NPC) . 33
11.3.1 Annual Cost and Annual Equivalent Value (AC or AEV) . 33
11.4 Other economic indicators . 33
11.5 Economic impacts and aspects and related indicators . 33
11.5.1 General . 33
11.6 Calculation methods . 33
12 Reporting of the assessment of results . 34
12.1 General information on the assessment . 34
12.2 General information on the object of assessment . 34
12.3 Statement of boundaries and scenarios used in the assessment . 35
12.4 Data sources . 35
12.5 List of indicators used for assessment and expression of results . 35
12.6 Communication of assessment results . 36
13 Verification of results . 37
Annex A (informative) Building description . 38
Annex B (informative) Exported energy – Case studies . 39
B.1 General . 39
B.2 Case 1 . 39
B.3 Case 2 . 40
B.4 Case 3 . 41
B.5 Case 4 . 42
Annex C (informative) Additional indicators to assess the economic performance of buildings –
Rules for assessment . 43
C.1 General . 43
C.2 Value stability and performance . 43
C.2.1 Value stability in a short term perspective . 43
C.2.2 Value stability and performance in a medium-to long-term perspective . 43
C.2.3 Additional economic indicators used in ISO 15686-5 . 44
Bibliography . 45

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Foreword
This document (prEN 16627:2013) has been prepared by Technical Committee CEN/TC 350 “Sustainability of
construction work”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
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Introduction
The purpose of this European Standard is to provide calculation rules for the assessment of the economic
performance of new and existing buildings as one part of an assessment of the sustainability of the building.
This European Standard is part of a suite of European Standards, Technical Specifications and Technical
Reports for the assessment of the economic performance of buildings that together support quantification of
the contribution of the assessed building to sustainable construction and sustainable development.
The economic performance of a building is only one aspect of its sustainability. The environmental and social
performance of the building are also aspects of sustainability that should be assessed as part of a
sustainability assessment. These are described in the framework standards (EN 15643-1, EN 15643-2, and
EN 15643-3, EN 15643-4).
NOTE The economic assessment at building level requires information from products and services.
The evaluation of technical and functional performance is beyond the scope of this European Standard.
Technical and functional characteristics are taken into account here by reference to the functional equivalent,
which also forms a basis for comparison of the results of assessments.
This European Standard is intended to support the decision-making process and documentation of the
assessment of the economic performance of a building. Although the assessment results are based on
realistic scenarios, they may not fully reflect the actual and future performance of the building. Figure 1
illustrates how the assessment of the economic performance takes place within the concept of the
sustainability assessment of buildings.

Figure 1 — Concept of sustainability assessment of buildings
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In this European Standard, the assessment method for the quantitative evaluation of the economic
performance of the building is based on a life cycle approach. The general requirements for sustainability
assessment of buildings are described in EN 15643-1 (the general framework standard). Other requirements
for the assessment of economic performance are given in EN 15643-4. Other European Standards developed
by CEN/TC 350 in this area, and how they are related to this European Standard, are shown in Figure 2.

NOTE The grey boxes represent the work programme as presented in EN 15643-1.
Figure 2 — Work program of CEN/TC 350
This European Standard is intended for use to assess the economic aspects of sustainable performance of a
building. This is a distinct activity from the Commission Delegated Regulation (EU) No 244/2012 of 16 January
2012 supplementing Directive 2010/31/EU of the European Parliament and of the Council on the energy
performance of buildings, which is a methodology for the setting of energy performance standards by Member
States.
EN 15459, Economic evaluation procedure for energy systems in buildings, is the European Standard which
provides a calculation method for the costs of heating systems and other systems that are involved in the
energy use of a building, It does not address the calculation of the whole economic impact of a building.
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1 Scope
This European Standard specifies the calculation method, based on Life Cycle Assessment (LCA) and other
quantified economic information, to assess the economic performance of a building, and gives the means for
the reporting and communication of the outcome of the assessment. This European Standard is applicable to
new and existing buildings and refurbishment projects.
This European Standard gives
 the description of the object of assessment,
 the system boundary that applies at the building level,
 the procedure to be used for the inventory analysis,
 the list of indicators and procedures for the calculations of these indicators,
 the requirements for presentation of the results in reporting and communication,
 and the requirements for the data necessary for the calculation.
The approach to the assessment covers all stages of the building life cycle and includes all building related
construction products, processes and services, used over the life cycle of the building.
The interpretation and value judgments of the results of the assessment are not within the scope of this
European Standard.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
To be completed, but currently includes ALL of the following as References in NORMATIVE TEXT:
EN 15643-1, Sustainability of construction works — Sustainability assessment of buildings — Part 1 General
framework.
EN 15643-2, Sustainability of construction works — Assessment of buildings — Part 2: Framework for the
assessment of economic performance.
EN 15643-3, Sustainability of construction works — Assessment of buildings — Part 3: Framework for the
assessment of social performance.
EN 15643-4, Sustainability of construction works — Assessment of buildings — Part 4: Framework for the
assessment of economic performance.
EN 15804, Sustainability of construction works — Economic product declarations — Core rules for the product
category of construction products.
EN 15603, Energy performance of buildings — Overall energy use and definition of ratings.
ISO 15392, Sustainability in building construction — General principles.
ISO 15686-1, Buildings and constructed assets — Service life planning — Part 1: General principles and
framework.
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ISO 15686-2, Buildings and constructed assets — Service life planning — Part 2: Service life prediction
procedures.
ISO 15686-7, Buildings and constructed assets — Service life planning — Part 7: Performance evaluation for
feedback of service life data from practice.
ISO 15686-8, Buildings and constructed assets — Service-life planning — Part 8: Reference service-life and
service life estimation.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 15643-2, EN 15643-4 and
ISO 15686-1 apply.
4 Abbreviations
For the purposes of this document, the following abbreviations apply.
ESL Estimated Service Life
RSL Reference Service Life
RSP Reference Study Period
5 The process for setting up the calculations required for the assessment
In order to carry out and complete the calculations necessary for the assessment of economic performance of
buildings, the steps illustrated in Figure 3 shall be followed. This will help ensure that the essential information
is gathered and processed according to the requirements of this European Standard. The clauses numbered
in the right column that follow the diagram explain in more detail each step specified in the central column of the table
below.
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Key
a white boxes are optional
Figure 3 — Flowchart of the process for the assessment of the economic performance
6 Purpose of the assessment
The purpose of the assessment is to quantify economic performance of the object of assessment, usually a
building within its site perimeter, as one part of an integrated assessment of the sustainability of the building.
The scope and intended use of the assessment of a building in terms of economic impacts and aspects shall
be defined, agreed and documented before an assessment is carried out.
The scope of an assessment shall identify and record what is included in the assessment with respect to
Clauses 7, 8, 9 and 10.
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The intended use of the assessment may include, but is not limited to, the following:
a) assistance in a decision-making process, for example:
 comparisons of the economic performance of different design options;
 comparisons of the economic performance of refurbishment, reconstruction and/or new construction;
 contributing to identification of the potential for improved performance;
 contributing to the setting of budgets.
NOTE A financial or investment analysis serves a different purpose and may lead to different conclusions to this
economic analysis of sustainability performance.
b) declaring performance with respect to legal, funding or other requirements;
c) documenting the economic performance of a building;
d) support for policy development.
The scope and intended use determine the level of detail and accuracy required for the inputs to and outputs
from the calculations.
7 Specification of the object of assessment
7.1 General
The object of assessment is the building, including its foundations and external works within the perimeter of
the building’s site, over its life cycle. The perimeter used to characterise the site shall be consistent with the
definition and intended use of the building.
NOTE 1 The site is identified as the physical space of land occupied by and attached to the building.
NOTE 2 Clause 7.3 describes how the life cycle results can be adapted to give the results for the chosen reference
study period.
If the assessment is restricted to a part of a building or to an assembled system (part of works), or to a part of
the life cycle, or if any relevant impacts or aspects are not addressed, this shall be documented, reported and
reasons given.
NOTE 3 The economic assessment of the building excludes permanent construction works outside of the perimeter of
the site such as construction of infrastructure for communication, energy, water, waste and transportation. A building on a
site which requires such construction works will generate economic impacts other than those strictly related to the building.
The assessment of these economic impacts and aspects is outside of the scope of this European Standard.
The object of assessment shall be described in terms of its physical and time-dependent characteristics
(including cost related information).
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7.2 Functional equivalent
The functional equivalent is a representation of the required technical characteristics and functionalities of the
building. It is the means by which the characteristics of the building are rationalised into a minimum
description of the object of assessment.
Although assessments may be carried out on an individual object, they will in most instances form part of the
process for the evaluation of decisions in relation to the object of assessment. This includes the decision
whether to build new, or refurbish/reconstruct an existing building, the evaluation of the design options,
locations, etc.
Comparisons between the results of assessments of buildings or assembled systems (part of works) - at the
design stage or whenever the results are used - shall be made only on the basis of their functional
equivalency. This requires that the major functional requirements shall be described together with intended
use and the relevant specific technical requirements. This description allows the functional equivalency of
different options and building types to be determined and forms the basis for transparent and fair comparison.
If the assessment results based on different functional equivalents are used for comparisons, then the basis
for comparison shall be made clear.
NOTE 1 If appropriate, the assessment results of the buildings that have different functional equivalents (e.g. design
options for different types of buildings on the same site or the same types of buildings exposed to different conditions) can
also be compared based on a common unit of reference. The choice of the common reference unit for all buildings being
compared depends on a specific requirement of a technical, functional, economic, social or economic aspect, or
combination thereof, which is common to all these buildings and is linked to their corresponding functional equivalents.
NOTE 2 A reference unit can be derived from the functional equivalent and be used to present the result of the
indicators of the economic assessment relative to the functional equivalent. A reference unit may be dimensionless or
qualified with a dimension (e.g. per m², per year, per employee, per room per year, per m² per year).
When combining separate assessments of environmental (EN 15643-2), social (EN 15643-3) and economic
(EN 15643-4) performance in a sustainability assessment of the same object of assessment, the functional
equivalent used in the assessments of the individual dimensions of sustainability shall be the same.
The functional equivalent of a building or an assembled system (part of works) shall include, but is not limited
to, information on the following aspects:
 building type (e.g. office, factory);
 relevant technical and functional requirements (e.g. the regulatory and client’s specific requirements);
 pattern of use (e.g. occupancy);
 required service life (ReqSL).
NOTE 3 Other specific requirements and exposure to climate and to other conditions from the immediate surro
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