Les Jardins de Rozon
Marking the border with France, the municipality of Bardonnex includes several localities with residential vocation such as La Croix-de-Rozon
Located in the heart of the locality, the Jardins de Rozon project is subject to the General Law on Development Zones. It allows for the construction of two buildings, each housing nineteen three- to six-room apartments, of ZD-LOC category for the first and HM-LUP for the second. Designed by the Arcorea architectural firm in 2018, the buildings were built by Implenia Suisse SA, which managed the work. The two buildings are each served by two stairwells and joined by a two-level basement that includes parking, cellars, PC shelters, laundry rooms and technical rooms. They fit into their environment by their low height, i.e. 2 levels and an attic above the first floor. The buildings are aligned along a pedestrian path, their main façade facing south. The rear facades are punctuated by the recessed stairwells, which rise to the top and are distinguished by a red rendering and vertical glass bands. On the south side, large balconies with frosted glass railings extend the apartments to the outside.
Services in detail
With a reinforced concrete structure and polyurethane foam perimeter insulation, the construction is facilitated by the addition of prefabricated elements such as balconies and stairwells. Carried out from 2020 to 2021, the work had to adapt to COVID restrictions but also to the space available due to the complete footprint of the basements. The interiors are finished to a high standard and have plenty of built-in storage space. The THPE (Very High Energy Performance) standard is achieved through the optimization of the thermal insulation of the envelope, the means of heat and hot water production and the ventilation systems. A specialized engineering firm was commissioned to apply this standard. The heating is provided by two air-water heat pumps and one water-water heat pump connected to two heat recovery batteries for the extracted air. The ventilation monoblocks located on the roof renew the air by means of a simple flow system. Outside, in addition to the grassed surfaces, tree replanting compensates for losses according to the principles laid down by the DGNP and provides a green setting for the whole.