An architectural exploration set in Tallinn, the capital city of Estonia, on how to develop a vacant- and unfinished concrete structure in a cooperative and bottom-up way into a mixed-use living environment that provides people and their communities with more agency to shape their physical environment and their lives. Distilling principles for agency from research through reading and writing, analysing precedents and doing design research resulting in the design of an incremental-, modular-, flexible- and self-built system that facilitates the infill of the failed Porto Franco development at the harbour of Tallinn. Supposed to be 150.000 m² commercial space but has never finished because of a corruption scandal over which the government fell and the prime minister had to step down. Leaving the city with an unfinished- and unused space and an opportunity to redefine the role of the architect and the way in which we develop the environment around us.