A conversion of a late 19th centrury townhouse, combining two floors into a duplex apartment. The key element is the use of environment friendly building materials, from substrate and infrastructural items to finishes. Interior partitions were demolished so that the narrow building footprint would be exposed to as much natural light as possible. The main design element is a new stair made of reclaimed wood and structural steel. Two bathrooms and a kitchen were completely renovated. Some portions of the remaining spaces were also touched up to convey an airy feeling and a clear transition between new and existing elements.

A couple of years after the completion of the interior renovation, a project for an addition to the building was done. The goal was to add additional space for an office / greenhouse in the basement level. The interference on the 19th century townhouse is light-weight, a simple geometry that deals with the existing building harmoniously. This portion hasn't been built yet.