Building Types Online (BTO) is a digital database designed for architectural study, offering more than 1,300 case studies of contemporary and modernist buildings. It features detailed plans, vector-based drawings, photographs, and expert articles. Covering a wide range of building typologies, including housing, museums, offices, and schools, BTO serves as a vital resource for architects and students. It provides essential research materials and design inspiration through comprehensive documentation and analysis.

Expiry date: 27 February 2026