Cooperative Housing in Sofia is a city-focused research and resource project developed by European Housing Coop, a Berlin-based platform that documents and supports cooperative and community-oriented housing initiatives across Europe.1 It presents Sofia, the capital of Bulgaria, as an extreme case of post-socialist privatization, where almost the entire housing stock was transferred to private ownership after 1989.1 The project’s core aim is to map how this ownership structure affects affordability, access, and the prospects for cooperative housing.
The Sofia profile describes a city with exceptionally high outright ownership: about 84% of households own their homes, while only 12% are counted as tenants.1 Within this tenant group, true market rental is limited; only around 2% of Bulgarians pay market rent, and around 12% live rent-free or at reduced rent, usually in family-owned or restitution-related flats rather than a formal private rental sector.1 Cooperative housing as a legal tenure is effectively absent, close to 0% of dwellings, and municipal landlords hold only about 0.7% of the stock, roughly 3,200 flats.1
By assembling data and narrative analysis, Cooperative Housing in Sofia highlights how social housing functions mainly as a regulatory overlay—only about 1.5% of dwellings carry a social-housing rule, mostly within this small municipal stock.1 The project situates Sofia’s current housing challenges in the long arc of its urban history, from its origins as one of Europe’s oldest cities, built over Roman Serdica at the foot of Vitosha mountain, to its post-1990 transformation into a near-total “ownership society”.1 Rather than documenting existing cooperatives, it explains why cooperative housing is missing and frames Sofia as a potential testbed for future cooperative experiments.15