The Mökki, a small wooden house usually constructed of logs, is a mainstay of the Finnish summer. Painted in different colours, they are sited at a considerable distance to their nearest woodland neighbours. This cabin overlooks a bay just 2 km from Helsinki’s city limits. It is inhabited by a pair of architects and their 2 children; they use propane to cook and firewood to heat. Although the form and layout of the cabin were pre-determined, the architects created a lucid space by introducing a broad panorama window, a raised wooden platform, and a variety of built-in features. A system of folding and sliding elements transforms the sofa and table into a comfortable double bed; the children sleep in the loft.