Kokura Tanaka House

JA+U : Kokura Tanaka House by Tanaka Akinari Kenchiku Office © Shinkenchiku-sha

JA+U : Kokura Tanaka House by Tanaka Akinari Kenchiku Office © Tanaka Akinari Kenchiku Office

Floor plan courtesy of architect

This 67.4 m2 (725 ft2) single-story residence – located in Kitakyushu, Fukuoka Prefecture – uses concrete blocks as the load-bearing walls. The material was inspired by the neighboring houses.

JA+U : Kokura Tanaka House by Tanaka Akinari Kenchiku Office © Shinkenchiku-sha

JA+U : Kokura Tanaka House by Tanaka Akinari Kenchiku Office © Shinkenchiku-sha

The concrete-block walls diagonally divide the house into four rooms (dining, living, bathroom / storage, and bedroom) for a couple.

JA+U : Kokura Tanaka House by Tanaka Akinari Kenchiku Office © Shinkenchiku-sha

JA+U : Kokura Tanaka House by Tanaka Akinari Kenchiku Office © Shinkenchiku-sha

Each of the triangular rooms face its own exterior open space. Some parts are covered with lawn or used as a garden, while others contain dry garden and concrete-covered yard. These open spaces also help provide natural light into the neighboring houses.

JA+U : Kokura Tanaka House by Tanaka Akinari Kenchiku Office © Shinkenchiku-sha

The rooms are loosely divided by the concrete-block walls which form a cross in the center. Architect Akinari Tanaka used special blocks with a three-mountain motif – intended for exterior walls – for air ventilation.