Seismic safety verification can be performed by maintaining constructive rules or by calculation. Verification by calculation can be performed with a linear simplified or linear multi-modal response spectrum analysis. Alternatively, a non-linear quasi-static verification is also possible according to DIN EN 1998-1, which was not available in DIN 4149. In this article, the non-linear quasi-static earthquake verification according to DIN EN 1998-1 is presented in practice, using the example of a building in Mittenwald/Germany. The verification has been checked and accepted by an independent building supervision report.