SOZIALBAU AG was commissioned by URBANBAU and IMOVE to realise ten residential buildings with a total of 194 rental apartments on the 21,000 m² site of the former staff accommodation of the Geriatriezentrum Hietzing. Five of these buildings were designed by Delugan Meissl Associated Architects.

Due to the generous green spaces and many trees within the residential quarter and the proximity of the Hörndlwald and the Lainzer Tiergarten, the five-storey blocks offer residents the opportunity to “live amongst the greenery”. The project is notable for its balanced mix of larger and smaller apartments, each of which has an open space such as a loggia, etc., and a range of communal facilities including a fitness and wellness area, playroom, laundry and cycle and pram storages. Two underground garages ensure that the complex remains car-free.

The green residential quarter has a renewable energy supply system. The apartments are heated by air-air heat pumps, which activate the underfloor heating and provide cooling in summer. Roof-mounted photovoltaic panels enable these heat pumps to operate. Any excess solar electricity is used to light the public areas.