Schmidt-Lademann House, Modern residential structure in Floreat, Australia.

The Schmidt-Lademann House is a modern residential structure in Floreat with sloping roof lines, granite walls, jarrah ceilings, and blackbutt parquetry floors across multiple living spaces. The building spans several levels with divided zones, including bedrooms, a study gallery, and living areas with views toward the surrounding reserves.

Siegfried Schmidt-Lademann, appointed German consul in Perth in 1957, commissioned the house as a residence suitable for both private living and formal receptions. It was the first independent design by Bulgarian-born architect Iwan Iwanoff, built in 1958. When the Perth consulate closed in 1959 the house was sold. After insensitive 1970s alterations it stood empty until Justin Locke bought it in 1998 and renovated it, adding a two-storey northwest extension between 2001 and 2003.

The residence reflects design principles from European Modernism and the Bauhaus movement, influences the architect brought from his studies in Munich. These ideas shaped how the building looks and how its spaces are organized.

The house is located on Lifford Road in Floreat Park and offers views toward nearby green spaces and reserves. The split-level design with divided zones takes time to explore, as multiple areas are connected across different heights.

The 2001–2003 extension by owner Justin Locke filled out the original L-shaped plan on the northwest side with a two-storey block, adding an indoor/outdoor dining area below and a bedroom and bathroom above. On the eastern end it repeats the slanted roof with an external post-and-beam structure, matching Iwanoff's original design.