As cities are getting increasingly denser and populations rise, housing is becoming harder to come by, especially affordable housing. In Quito, Ecuador, architectural firm Sindicato Arquitectura has built what they are calling a “parasitic house” — a compact dwelling that only measures 129 square feet and sits on the roof of another home.

Take a step inside this tiny home and marvel at its small scale and functionality.

The structure has steel panels on the outside and the insulation is filled with coconut fibers.

Using a standard timber A-frame, the home is still able to contain a bathroom, kitchen, bed and storage, as well as a multipurpose area for eating, working and socializing.

Sindicato Arquitectura believes the solution to the urban housing market crisis is to use these underused rooftops that are structurally sound to contribute to the city’s densification without a big economic investment.