Architect Jordi Martí outlines a strategy for affordable living in Barcelona, suggesting that individuals who cannot afford standard housing might consider purchasing commercial premises and converting them into residences. This approach shifts the focus from traditional housing markets to adaptive reuse of commercial stock. [1]
Martí points out that the conversion of local commercial spaces into habitable housing is a growing trend, particularly in Madrid where data from the Colegio Oficial de Arquitectos de Madrid (COAM) collected by OCU shows 816 such changes of use in 2025. However, feasibility is not universal, as the Barcelona City Council requires strict checks on planning permissions before any physical adaptation begins. [1]
Martí presents a case study of Andreu, who sought more than a simple layout change, aiming for a high-energy-efficiency loft with superior comfort. The renovation integrated triple-glazed windows, cork insulation, a heat recovery ventilation system, and a fan-coil unit to manage air stratification, demonstrating that comfort standards comparable to new builds are achievable in conversions. [1]
A critical component of passive house standards in these conversions is eliminating unwanted air infiltration. Martí explains that the project used pre-compressed tape and spray polyurethane to seal frames, alongside liquid sealants at joints between materials to ensure controlled ventilation pathways. [1]
Validation of the building envelope's integrity was achieved through blower door testing, which involves increasing air pressure inside the unit to measure leakage rates. This diagnostic tool confirms the effectiveness of the insulation and sealing strategies applied during the renovation. [1]
Natural lighting optimization was another key feature. By exploiting an existing skylight opening, the design utilized an inclined mirror to redirect half of the daylight into the bathroom, maximizing illumination in the converted space without increasing window surface area. [1]
- Categories:
- Real Estate
