Unit C 

by Per-Johan Dahl, Caroline Dahl, 2011-17 

Unit C takes the design and construction of an emergent building type to explore relationships between the disciplinary context of a site and the planning objectives that guide historical preservation.

Photo: Fredrik Dahl

The applied research project encompasses an attached Accessory Dwelling Unit (ADU), designed for a neo-classical villa, built 1931 on a single-family residential lot in Råå, Sweden. The ADU comprises an emergent building type, which encountered disciplinary grounds in the late 1970s, primarily in south Canada and the American West. Defined as an autonomous living unit and built as a complementary structure to the main building on a single-family residential lot, the ADU challenges universal zoning by adding density to suburbia. 

Per-Johan Dahl is an architect and Associate Professor in Architecture at the Department of Architecture and Built Environment, LTH-Lund University. 

Caroline Dahl is a Senior Lecturer in Landscape Architecture at SLU Landscape with an MA in Architecture and an MA in Urban Planning and Design.