Ensure legal certainty when building a house: From searching for a plot with a realtor to contracts with all parties involved in the construction, such as craftsmen, architects, or developers, to the legal enforcement of claims, all important steps are clearly outlined here. Worksheets for all legally relevant agreements and correspondence from the shell construction to the handover bring order to the large project of building a house. This is a supplement to the builder's manual by Stiftung Warentest.