Aparttube modules was a proposal intended to fill a specific urban void in Lisbon’s Avenidas Novas (New Avenues neighborhood). An urban block was chosen due to its abandon and degradation conditions: waste, prostitution, and drug was the norm when we were starting this proposal. We would like to use concrete drainage pipes and adapt them to temporary residential modules. Benefiting from an existing public street that crossed the block we would like to stack all the modules on the northern side to get as much sun as possible. These modules should be used by young people (students and young professionals) that are being expelled from the city center. This project intended to be in line with the theory of the compact city, where the forgotten voids should require attention from authorities, citizens, and architects.