BVD - Bâtiments et villes durables

Extended assessment method of a building-related investment relyiong on its economic, environmental and social imapcts. – DECADIESE

Submission summary

Today’s theoretical and political trends call for a new sustainable development path in order to make economic growth compliant with environmental and social challenges. The Building sector must feel concerned especially. On the one hand, the building sector stands for around 40% of final energy consumption in Europe and the building owner will have to take that into account in the frame of Social Responsibility and on the other hand they generate economic activities and local employment.
Unfortunately, existing assessment tools of energy-related building projects (construction or retrofit) focus mainly on the first cost (investment), or sometimes on a “first overall cost” calculated from first cost and discounted operations and maintenance costs. These methods fail to give a right valuation to solutions which can be compliant with the oncoming energy and social challenges.
Principles and objectives

This DECADIESE project aims to design a building investment (construction and refurbishment) economic assessment tool which could encompass on one hand the main features related to sustainable development or social responsibility (social and environmental impact...) and on the other hand the “use value” of the building. The considered DECADIESE method relies on the “Service Economy model”. This theory deals with business models which are designed in the supply of a service in response to a functional need. This functional offer is made of an integrated and compliant set of products and services and it is implemented by both the service provider and the client in the frame of a co-construction process. The economic agreement deals with an assessable performance rather than with the supply of disjoined products and services. Interactions with territories are fully involved in this functional offer. In this project, we consider a building as a system designed to host activities or business. In this purpose, the building provides seven main functions with an achieved performance after the construction/renovation works: providing space, providing comfort (e.g. temperature), providing weatherproof protection, providing suitable goods and tools for hosted activities, managing the relationship with outside people, beneficiating from the site in a harmless way, carrying a message and an image. This building sight underlines that far more than a set of components, it is a use value producing system during its designed life..

Expected results

The project first aims to develop a strong extended economic assessment of a building project relying on an accepted and legitimated theoretical basis. This would reinforce its acknowledgement by building stakeholders and decision-makers. The DECADIESE method will be applied to several building project alternatives with respect to building owner’s, client’s, occupant’s and other stakeholder’s expectations. It will support the initial dialogue stage between building’s stakeholders, which is expected in the frame of an eco-conception approach. The DECADIESE method will underline how ambitious and performing buildings stand for an economic optimum although they are not seen so when applying a traditional overall cost approach.
This project aims secondly to contribute to the emergence of a new sustainable economic model giving energy efficiency investment their real value. Such economic model asks for such innovative assessment tools. DECADIESE will help identify the ways of economic transfer between impacted stakeholders.

EDF (energy supplier) acts as project leader. DECADIESE partners are Bouygues Construction, Vinci construction (building sector major companies), Foncière des Régions (real-estate major player), ATEMIS (territory economy specialist), Ladyss/Paris 7 (Service Economy Specialist), Centrale Paris LGI (Value engineering), CGS Mines Paristech (change sociology and management). The project will be supported by a scientific council.

Project coordinator

Monsieur MAZOYER Jean-luc (EDF) –

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.


ARMINES ARMINES - Centre Gestion Scientifique
LADYSS Laboratoire Dynamiques sociales et recomposition des espaces
FdR Foncière des Régions
ECP Laboratoire Génie Industriel de l'Ecole Centrale Paris
VCF Vinci Construction France
BYCN Bouygues Construction

Help of the ANR 869,148 euros
Beginning and duration of the scientific project: December 2011 - 36 Months

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