Key facts

  • Location

    France, Issy-les-Moulineaux
  • Project owner

    Seine Ouest Housing and Heritage

  • Architects

    Synthèse Architecture ; Patrimonio

  • Delivery

    2025

  • Contractor

    Bouygues Bâtiment Ile-de-France Habitat Social

A renovation project in an exceptional occupied site

Located in the heart of Issy-les-Moulineaux, the ILN Mairie real estate complex marks the culmination of an ambitious renovation project carried out while the buildings remained occupied, involving 315 social housing units spread across three 16-story buildings.
Located in the city center, this residence is a defining feature of the urban landscape and local residential park. The project was designed to combine energy efficiency, improved quality of life for residents, and environmental transition, while ensuring continuity of use for tenants throughout the duration of the work.

The project is part of a comprehensive approach to the sustainable modernization of the building stock, with the aim of significantly improving the thermal and functional comfort of the housing units, enhancing the common areas, and increasing the attractiveness of the residence.
The thermal renovation of the buildings now makes it possible to reduce energy consumption and the carbon footprint, while the modernization of the common areas and wet rooms contributes to enhancing the safety, accessibility, and well-being of residents.

Immeuble résidentiel moderne gris clair et blanc, caractérisé par des jardins verticaux verts luxuriants intégrés à sa façade en escalier, sous un ciel bleu clair.

Key figures

  • 315
    housing
  • 3
    buildings

Improving the living environment for residents

The ILN Mairie project stands out for its integration of innovative solutions designed to reconcile environmental requirements with improvements to the living environment. The creation of green facades contributes to the aesthetic redevelopment of buildings while promoting urban biodiversity and contributing to natural thermal regulation.

In addition, the installation of a geothermal energy system is a major driver of the project's energy performance. This solution provides sustainable energy to the homes while limiting greenhouse gas emissions and dependence on fossil fuels. Combined with comprehensive thermal renovation, it guarantees significant energy savings for occupants and better control of rental costs.

Vue aérienne d'une ville sous un ciel bleu parsemé de nuages, présentant des immeubles résidentiels blancs modernes avec des jardins verticaux en façade, entourés d'un tissu urbain dense mêlant habitations et espaces verts s'étendant vers l'horizon.
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