An ongoing development concept project for Toronto Community Housing (TCHC) site of Swansea Mews located in the west-end neighbourhood of High Park—Swansea. The proposal seeks a balance between social, ecological, and functional concerns. This is accomplished by knitting together natural and urban systems. Being first with nature, the proposal places a naturalized park at the heart of the urban scheme. The park provides an ecological and social basis for the adjacent midrise housing blocks that surround it in a crescent shape. A public porch is created along The Queensway, the arterial street that serves the site. The public space is conceived as an amenity and threshold to the park. The already vibrant social life of the west-end neighbourhoods will find new public space to host special events and daily activities. Nature and urban life are a comfortable pairing already seen in the Swansea neighbourhood. The proposal follows this example while increasing the density of the site. The density is achieved with mid-rise buildings that are based on modular design principles. Narrow building widths and simple building shapes allow cladding modules to be factory-built and achieve tremendous cost efficiency.