Piya Apartment is a development project targeting executive expats on one rai of land in Sukhumvit 15, Bangkok, near office districts, shopping malls, and international schools. The building features a symmetrical layout with identical units: corner units have three bedrooms, and adjacent two-bedroom units can be combined into four-bedroom units (Diagram 03).
In Bangkok's real estate market, rising land prices lead to increased building density, causing poor ventilation, limited views, and cramped spaces. To address these issues, designers focused on enhancing living quality while maximizing saleable areas (Diagram 01-02).
The architects adopted an "inside-out" approach for the façade, prioritizing functionality and resident needs. Privacy was crucial due to dense surroundings and tall neighbouring buildings. While reducing window size enhances privacy, it diminishes space perception and views. Thus, the architects designed the façade to maximize room size perception and maintain generous openings. They added solid walls for privacy, extending them to balcony edges to increase the perceived depth and make interiors feel larger (Diagram 04). Angled walls obscure external views into the interior, allowing for larger openings without compromising privacy. These walls align with adjacent contexts, creating a unique pattern on each floor (Diagram 05).
The project emphasizes sustainability and ease of maintenance, using recyclable and low-maintenance materials like extruded aluminium and aluminium sheets. Instead of real stone for the main facade, thick tiles on a dry-process subframe were used, reducing environmental impact while ensuring durability and longevity.