Tammela house introduces UNESCO World Heritage and renovation of Old Rauma. Tammela organises events regarding world heritage and traditional construction, and houses different cultural events. In addition, Tammela sells recycled building supplies for old timber buildings. There is also a workshop on the property where residents can do woodwork.

Old Rauma has been included on the UNESCO World Heritage List as a unique example of a preserved historic Nordic wooden town. In applying for World Heritage status, Rauma has committed itself to ensuring that Old Rauma remains alive and inhabited for future generations, but also preserves its cultural heritage value. Delivering on that promise requires special skills in the management of the built environment and in conservation and restoration.