This paper reflects on the patterns of ‘speculative’ growth that have typified the UK’s recent housing market, and considers the role for collaborative and ‘mutual’ housing provisions to be in the vanguard of ‘de-growth’ initiatives. It looks at the opportunities intrinsic to Cohousing and other ‘user-developed’ housing to challenge some of the contemporary dynamics of the UK housing market, and raises suggestions for the ‘mutual’ initiatives that might carry this out