In the Tammela house, in the heart of Old Rauma, the Renovation Centre is open all year round.
The exhibition at Tammela displays renovation methods suitable for the timber buildings of Old Rauma as well as the UNESCO World Heritage. Also, a bank of spare building parts operates in the building.
The main building of Tammela was built in the early 19th century as a home of several households. Also a shop operated in the building. This explains the large size of the building. The gross floor area is 292 m2 and the plot is one of the largest in Old Rauma (1 774 m2).In the past the estate has also included a large outbuilding with a cow shed and a barn.