Mystery Box, cultural center

 Library and cultural center
Ayuntamiento de Madrid

key points:
- lot constraints: small and irregular size, difficult and narrow access
- development plan and planning scheme amendment needed due to the lot characteristics.

There is no free space in the city center of Madrid, but the neighborhood still needs new amenities and infrastructure. The only lot available: a set of internal patios, with not density and residual use. This lot, is the only land available, with an. irregular form, and difficult access

This proposal turns the constraints into opportunities of design, solving the lack of land in a populated city center without increasing the density and creating amenities for the neighborhood.