If you built a building to use the land, or in some cases soaring construction costs in unexpected places. In urban planning, for example, in areas designated as regional disaster prevention or total floor space over three floors and 100 square meters or more to build a building, therefore, be a factor affecting the profitability of the land that is . Cost factors, or a wooden or profitability of a RC or steel frame is very different. Ground improvement and cost it takes to build earthquake-resistant structures in the low ground. Poor road conditions and connections, materials, and even quasi-regional disaster reduction. I think the general profitability of the land want to keep building costs, townhouse and the building was determined to be a factor in the cost of equipment delivered.