Based on our Group Environmental Policy, we strive to protect the precious natural environment in urban areas and preserve the trees and forests that pass on the memories and history of the land. We also work to create new green spaces in urban areas. Recognizing the maturity that comes with age, we are also working to create and restore greenery and biotopes that are in harmony with the surrounding environment and preserve biodiversity.

Major Initiatives

Biodiverse Regions

Business Activities in National Parks

Among the regions where the Mitsui Fudosan Group is engaged in business activities, the resort hotel HAIMURUBUSHI (Yaeyama District, Okinawa) is located in an ordinary zone of Iriomote-Ishigaki National Park, the TOBA HOTEL INTERNATIONAL (Toba City, Mie) in an ordinary zone of Ise-Shima National Park, and the NEMU RESORT and AMANEMU (both in Shima City, Mie) are located in an ordinary zone and a special zone in Ise-Shima National Park.

Group-Managed Forests

The Mitsui Fudosan Group owns roughly 5,000 hectares of forest (equivalent to 1,063 Tokyo Domes*) in 31 cities, towns and villages in Hokkaido. Less than 40% is natural forest of trees such as Mongolian oak, and management is kept to a minimum so they can be preserved in their natural state. More than 60% is hand-planted Sakhalin fir and other varieties, and we conduct planned tree-planting and provide appropriate management and care. By using timber from our group managed forests as building materials, we create "never-ending forests."

*Calculation based on Tokyo Dome covering 4.7 hectares.

Policy for Biodiverse Regions

In the regions inside national parks where our four resort hotel facilities are located, we are working to create and restore wildlife habitats lost due to development, and are working to minimize the impact of business activities on wildlife habitats in these regions. Using these rich natural surroundings, we also strive to provide venues and opportunities for activities in touch with nature.

Preserving and Creating Greenery in Urban Settings

Creation of About 2,000 m2 of Green Space in TOKYO MIDTOWN HIBIYA (Greening Rate: 40%)

At TOKYO MIDTOWN HIBIYA (Chiyoda-ku, Tokyo), the planted foliage incorporates the same local varieties of trees as the adjacent Hibiya Park located across the road, to ensure harmony with the park's lush greenery. The Parkview Garden (sixth floor), Sky Garden (ninth floor) and other amenities provide approximately 2,000 m2 of green space (greening rate* 40%).

*Greening rate:Green area is calculated based on the method outlined in the greenery program of the Tokyo Nature Conservation Ordinance.
Greening rate (%) = (Rooftop green area + Ground green area) / (Site area - Building area + Usable rooftop area) x 100
Greenery plan for TOKYO MIDTOWN HIBIYA
Greenery plan for TOKYO MIDTOWN HIBIYA
Parkview Garden
Parkview Garden
Sky Garden
Sky Garden

Preserving and Creating Wildlife Habitats

The neighborhood of Tokyo Midtown (Minato-ku, Tokyo) is a redevelopment of a former Japan Defense Agency (JDA) site in Roppongi. Approximately 140 trees remaining on the former JDA site were preserved and transplanted, and in combination with the adjacent Hinokicho Park (Minato-ku) approximately 40% of the development area (roughly 4 hectares) forms a richly green open space, for a green area about 2.7 times that during the JDA era.

A wild bird survey was carried out from October 2016 to June 2017 in these green spaces of Tokyo Midtown, and the results confirmed birds of 6 orders, 18 families, and 25 species. These include the Northern Goshawk, Great Egret, Black Kite, and Bull-Headed Shrike, all of which appear on the Red List of the Tokyo Metropolitan Government, indicating important wildlife species for protection.

Moreover, within the premises, a handbook introducing the wild birds discovered in the survey is available for visitors to look at.

Wild Bird Handbook for Tokyo Midtown
Wild Bird Handbook for Tokyo Midtown
Green space in Tokyo Midtown (Midtown Garden)
Green space in Tokyo Midtown (Midtown Garden)
Japanese Pied Wagtail (lawn)
Japanese Pied Wagtail (lawn)
Eastern Spot-Billed Duck (water)
Japanese Pygmy Woodpecker (tree)
Barn Swallow (sky)
Barn Swallow (sky)
Japanese Pygmy Woodpecker (tree)
Eastern Spot-Billed Duck (water)
Wild birds living in Tokyo Midtown

Restoring Wildlife Habitats

The resort hotel NEMU RESORT (Shima City, Mie) is located in Ise-Shima National Park, which overlooks Ago Bay. Large parts of the tidal wetlands and seaweed beds in Ago Bay have been lost, and efforts to restore the tidal wetlands and seaweed beds, and thereby rejuvenate a flourishing ocean, are moving forward through a joint project by industry, government, academia, and the local community.

At the NEMU RESORT, a project has been underway since fiscal 2012 to restore a roughly two-hectare coastal plot of open land in the park (abandoned agricultural land) as a tidal wetland, and after restoration we are checking habitation by wildlife such as Flathead Grey Mullet, Japanese Black Seabream, and Japanese Intertidal Crab.

At AMANEMU (Shima City, Mie) which opened in March 2016, a pre on-site vegetation survey was carried out based on the REFOREST development concept (reclaiming nature on land damaged in the past by repeated development and deforestation). Based on the results, we selected the principal trees of existing forests on the site, and carried out priority planting starting from locations artificially developed with no trees, such as lawns. In this way, we worked to restore the forest in harmony with the natural environment of the region.

Provision of Venues and Opportunities for Activities in Touch with Nature

At the resort hotel NEMU RESORT (Shima City, Mie), we offer programs to experience nature such as Bird Watching Strolls and Satoyama Nature Tours, led by dedicated nature specialists and guides. We also offer programs to experience nature at HAIMURUBUSHI (Yaeyama District, Okinawa) such as Nighttime Park Tours, scuba diving, and snorkeling.

Initiatives for Sustainable Forest Resource Procurement

To ensure sustainable procurement of forest resources, Mitsui Home—as a company using such resources—has formulated the Mitsui Home Group Resource Procurement Guidelines, which set forth procurement policy and scope of applicability. In the Eco-Action Plan 2020, we set a medium-term goal (2020) of maintaining 100% achievement of internal procurement standards relating to legality, and we are continuing our efforts within that framework.

The Mitsui Home Group Resource Procurement Guidelines (Overview)

Procurement Philosophy

As a company that draws on trees and forests in the conduct of its business activities, Mitsui Homes adheres strictly to a policy of sustainable forest resource procurement to ensure an abundant ecosystem and to maintain regional society. Moving forward, the company will work diligently to reduce its global environmental load.

Procurement Policy
  • 1 Confirm the legality of timber and lumber products

    When procuring from countries and regions where the possibility of illegal harvesting exists, the legality of timber and lumber procured are confirmed in advance.

  • 2 Procure sustainable forest resources

    We promote procurement of forest resources from sources that practice sustainable harvesting, to protect precious forests, their environments and biodiversity.

  • 3 Protect precious species

    We work to protect valuable and endangered tree species.

  • 4 Manage and maintain the supply chain

    We work with partners to manage and promote legal, sustainable supply chains.

Implementation of Biodiversity Risk Assessments

When carrying out a new development project, the Mitsui Fudosan Group confirms the presence of trees, forests, and other elements of the natural environment that should be preserved on development sites, and we preserve, transplant, or conserve trees, forests and other natural features when needed.

In developing regions with many natural areas, we assess environmental impact on plants, animals, and ecosystems based on laws, regulations, and ordinances relating to environmental impact assessments and protection of the natural environment.