We worked closely with Kingston Churches Housing Association to develop a garage site behind one of their existing flatted properties in a conservation area in Surbiton, Kingston-upon-Thames to provide affordable accessible housing. The site is tightly constrained with a narrow access leading to the existing garages and residential gardens bounding all sides of the site. Each dwelling has been designed to London Design Guide standards and HCA Housing Quality Indicators. The massing and appearance of the development were carefully considered to be subservient to the existing building on the site. The scheme provides high quality dwellings which enhance the conservation area making a positive contribution to the local character. Through a clever design which combined two storey and single storey elements we were able to develop three houses which retained the privacy of the surrounding properties whilst providing large levels of natural light to the new houses. This was achieved through an L-shaped house plan which created a private courtyard for each property and a more open garden space to the front. The design is futureproofed with a fully accessible ground floor which allows use by older people with carers or those in wheelchairs. The houses are highly insulated and have green roofs to mitigate the drainage problems which the existing site faced. Standardised bathroom and kitchen layouts were used to achieve economies of scale at the construction stage. The development makes excellent use of a redundent brownfield site to provide inclusive and affordable homes and shows how our design and town planning skills have created value out of an underused asset.