Joaquim Valls Housing, The plot is located in the Prosperitat neighborhood in Barcelona, encompassing a total area of 429.67m² with a rectangular perimeter. The terrain remains predominantly flat across the entire plot. The project involves the construction of a new residential building of approximately 2,600 m2, including commercial space, storage units, and parking (18 dwellings, 1 unspecified-use commercial space, and 20 parking spaces).
© Del Rio Bani
The building is situated on a corner between two streets of very different nature: on one side, Pablo Iglesias Street is a wide avenue with a more recent opening, and on the other, Joaquim Valls Street is part of the historical layout of the neighborhood, with a narrower section. The volume engages in a dialogue with its surroundings, based on a stepped design strategically used to align the height with the neighboring building on Pablo Iglesias Street. As it turns the corner, it reduces to the allowed height on Joaquim Valls Street, creating a configuration that harmonizes taller buildings with adjacent smaller-scale structures. This volumetric approach also generates terraces with privileged views of the city.
© Del Rio Bani
Furthermore, the large openings incorporate multiple layers to address solar control, privacy, acoustics, thermal regulation, and visual functions. Through a unique architectural solution, all aspects of functionality and user comfort are carefully considered. Providing natural light to most spaces has been a difficult challenge, aiming to convey maximum warmth and comfort to the inhabitants.
© Del Rio Bani
The project has been conceived under sustainability and energy-saving parameters, enhancing the thermal and acoustic performance of the envelope through insulation systems and the use of low-emissivity glass. Efficient aerothermal systems are employed for both heating and domestic hot water production.
Project Info
Architects: BJ Arquitectes Associats
Country: Spain, Barcelona
Area: 2600 m²
Year: 2023
Photographs: Del Rio Bani
Installations: TDI enginyers
Structures: STATIC Ingeniería S.A.
Execution Management: CBA – Arquitectes tècnics
Madeline Brooks is a Projects Editor at Arch2O, where she has been shaping and refining architectural content since March 2024. With over a decade of experience in editorial work, she has curated, revised, and published an array of projects covering architecture, urbanism, and public space design. A graduate of the Harvard University Graduate School of Design, Madeline brings a strong academic foundation and a discerning editorial eye to each piece she oversees. Since joining Arch2O, she has played a pivotal role in shaping the platform’s editorial direction, with a focus on sustainability, social relevance, and cutting-edge design. Madeline excels at translating complex architectural ideas into clear, engaging stories that resonate with both industry professionals and general readers. She works closely with architects, designers, and global contributors to ensure every project is presented with clarity, depth, and compelling visual narrative. Her editorial leadership continues to elevate Arch2O’s role in global architectural dialogue.