The construction of new housing has been the most visible of all the spatial changes to have affected the post-socialist suburban landscape. It is argued in this article that former summer-home settlements are a hidden component of contemporary residential suburbanisation in former socialist countries. The building of summer or weekend homes (dacha settlements in the former Soviet Union) around major cities for urban residents was a specific feature of socialist metropolitan planning. After removing construction restrictions, the stock of vacant dachas started to support the supply side of the suburban housing market. While dachas were a reserve of affordable housing during the recession of the 1990s, they served as a stock of building plots during the construction boom of the mid 2000s. In the Tallinn Metropolitan Area, former second homes are even more important than new post-1991 residential areas in terms of giving access to detached houses to the metropolitan population.