In general, there are five means to enhance the urban amenity; 1 conserving cultural or natural environment, 2 controlling the quality of urban spaces, 3 guiding desirable urban developments by providing incentives, 4 creating mutual agreements or making contract by utilizing various planningtools, and 5 joint operation of the above-mentioned measures. In Japan, we have varieties of planning mechanisms to promote the urban amenity, however, general provision of regulatory measures, such as floor area ratio, are too generous to the landowner so that it may prevent planning authorities from promoting the urban amenity through more rigorous planning regulations.