In Japan, special planning measures are necessary for residential environmental improvement in the Densely Built-up Areas. For this planning issue, many researches currently try to support public participation using virtutal reality technology in order that stakeholders can study the complicated planning measures with respect to the suggested planning alternatives represented by a virtual world. In this paper, we present a learning support system using 3DVIR that can easily virtualize a plan alternative in an urban district area, which can promote the stakeholders’ understanding for rebuilding in a densely built-up area. A case study has been conducted to help residents to share of image in the Teramachi Area of Kanazawa city.