Daiwa House Group

Daiwa House Group

Midorigaoka Neopolis
(Midorigaoka district and Aoyama district) Miki, Hyogo Prefecture

Midorigaoka Neopolis (Midorigaoka district and Aoyama district) in Miki City, Hyogo Prefecture is a suburban housing complex made up of single-family dwellings that began receiving its first residents in 1971 following a land redevelopment project undertaken by Daiwa House Industry to create a “new town that fosters healthy engagement with nature”.

As people of similar age all moved in around the same time, a time when housing was in short supply in the Kinki area, the place has aged as it has grown and now faces the sort of challenges that are characteristic of a mature neighborhood. These include a falling population and an increasing number of empty lots and vacant homes.

These challenges are found in jurisdictions where suburban housing complexes with single-family dwellings account for more than half of the population. The Midorigaoka district is one such place where the proportion of elderly exceeds 40% and it has been the site of measures aimed at community revitalization and bringing in the younger generation that got underway in earnest in 2015.

In 2020, we entered into a cooperative agreement with Miki City to promote “Creating communities where people can reside for a long period”. This initiative sets out to establish and adopt ways of maintaining community activities, with industry, government, academia, and consumers each lending their particular strengths to the goal of making the community where residents of all ages can go on enjoying a life that is comfortable, safe, and secure.

Diagram of business model development
Joint initiative by industry, government, academia, and consumers

What is needed to restore and retain the attractiveness that makes a place somewhere people want to go on living or move to? The challenges facing the Neopolis were identified through dialogue with residents. Carefully and one step at a time, action is being taken to provide services that are equally accessible to all. Recognizing the lack of places where elderly people living alone or families with young children can gather and share news, work also started on providing a community facility to resolve the “dearth of connections” that has become an issue as the neighborhood matured.


Takahashisanchi: Facility Profile

Opening hours: 9:00 to 18:00 Mon. to Sat. (excluding public holidays)
* Subject to change at different times of the year. Refer to the facility notices for the latest information.

Original construction

Lightweight steel frame
Number of stories:
Building age:
46 years
Daiwa House Industry
1975 (48 years ago)

<Renovation work>

Community facility
Daiwa House Industry
Local building company
May 2021
(No change in structure and number of stories)

* As of February 2023

Takahashisanchi is a renovated home that was once used as a tea ceremony classroom where local people could gather. The community facility came about from the desire of community residents to recreate the lively atmosphere of its heyday. It features an accessible “barrier-free” design that allows anyone from children to the elderly to drop in whenever they feel like it, and its bright and open interior comes with a good outdoor flow, making it a place where visitors can enjoy spending time in comfort. In addition to its routine daily use, it also fosters relationships that are full of diversity by hosting events that bring people of different ages together.

Studies have also started on the next steps in this pursuit of “Creating communities where people can reside for a long period”. One of these is a mobility service for people who no longer have access to travel by car after having had to hand back their driving licenses. Another is “relocation”, whereby local people are able to move within the community to housing that better suits their particular life stage based on their lifestyle and living arrangements. This work represents just one initiative aimed at combining the insights and discoveries of local residents with corporate know-how and the ideas of local government and other authorities to create places to live that will be sustainable into the future.

Midorigaoka Neopolis
(Midorigaoka district, Aoyama district)

  • Arrival of first residents: 1971
  • Site area: 3,040,000m2(approx.) (about 65 times the area of the Tokyo Dome)
  • Number of lots: 6,000 (approx.)
  • Percentage of elderly: 35% (approx.) (as of 2020)
  • Number of residents: 14,752 (as of 2020)

Selected for the FY2018 Model Project for Promotion of Smart Wellness Housing of
the Ministry of Land, Infrastructure, Transport and Tourism

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