Abstract
The purpose of this paper is to discuss one rule of dividing financial costs of constructions of attached public facilities together with development by the evaluation of environment. In this paper , the way of the evaluation is to estimate of externalities of development and surrounding environmental improvements in residential area by real estate appraisal. It is found that the externalities of attached public facilities cannot compensate for disexternalities of developments, but by addition of environmental improvement the total externalities can more than compensate for the disexternalities in this research area. We can judge the cost share of the construction and necessity of public facilities and environmental improvements by the way of the estimation of externalities.
