Project Stakeholder

Les Gradins

Les Gradins are a 44 housing co-ownership faced with financial hardship. As such, it did manifest difficulties to make appropriate decisions and the state of the building was steadily degrading. The goal here was to bring adequate public support and engage co-owners in the project so that they would opt for an ambitious work programme. In this project, Energies POSIT’IF did not propose or supervise the work program, but was the financial counsel of the co-ownership.

Two 5 and 8 floors buildings sit on a concrete base, sharing parkings. No works have been done since 1990, and the housings are connected to the local geothermal heating network. The buildings also hosts a municipal nursery. The energy renovation aims at reducing energy consumption from 130 kWh / sqm.year to 83 kWh / sqm.year through a comprehensive program of external (roof and facade) insulation, floor coverings, windows replacement, hygrometric mechanical ventilation. Structural works will also be dedicated to the concrete base and balconies.

The EPC is divided in three parts: works, financing and measurement. They are carried out by different players, yet intertwined.

The works programme, exposed supra, has a total cost of 1.7 million euros. We have gathered individual public aids for co-owners up to around 170 000 €, collective aid amounting to 370 000 €, and white certificates prefinancing for 60 000 €. A third of the project is covered by public support, which is both important and not exceptional for a difficult co-ownership. Energies POSIT’IF has negociated a collective loan to cover the rest. Given that those aids are conditioned on the expected energy consumption to be reached, this breaches into measurement.

An instrumentation will be set up, allowing for incentivised M&V. We are currently trying to bring this step into the general frame.

The Gradins co-ownership has had much difficulties to come to decisions dealing with investment. This is due to social and financial hardships, with around 15% co-owners behind their payments. Local authorities had a strong involvement to accompany towards the beginning of a process and have helped choosing adequate project management team, and a financial counsel.

In the summer 2017, Energies POSIT’IF was approached together with a few competitors to propose a financial plan. An offer was proposed in September, and we were chosen in December. The design and management was awarded separately.

An important effort on co-owners involvement has been identified as crucial. A quarter of them have participated in several commissions, dealing with project design, works supervision communication, and identification and management of social hindrances.


A works program has been defined by the project management team, and a restricted private tender proposed to works companies. No negotiations have taken place. The co-owners have decided on the works programme and the companies to implement it in their October 2018 general assembly.

In co-ownership facing hardships, two elements are key to move towards ambitious EPC-like approach: close counselling of co-owners so that they appropriate the project, and finely tuned public support that nudges them towards M&V control.

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