Located near the Sea, this terrific apartment in Porto, Portugal redefines 2-story living. How so? First, check out the amazing built in hammock over the staircase. The idea itself is genius, and also provides a perfect space for reading where a traditional window seat is impossible.

The key elements, however, is the flow of natural light which highlights the undulating volumes of the key spaces. This is design about the unexpected, and about turning formerly disregarded spaces into fun, functional places in the home. Click the thumbs to tour 227 Flat by OODA. [Arch Daily]