(1) Sustainability of building and city
 - especially on the design of long life housing and the refurbishment and conversion of public buildings into another new use

(2) Research on the theory and the method of an architectural design
- especially from the view point of the collaboration between residents, architects and specialists

(3) Research on the implementation of Open Building Theory in the continuous improvement of built environment
- Research on the office conversion in Tokyo and other cities in the world
- Research on the renovation of large housing estates in Japan and Europe

(4) Research on the development and control of the urban environment
- especially on the correlations between the buildings, open spaces and green tract of land in cities

(5) Research of the facilities management and corporate real estate management
- especially on the long term management of large building/housing stocks