Increased “Green ratio”* through proactive greening of open space and rooftops
Green ratio of major development projects
| ARK Hills | Realization of a verdant environment in the heart of the city consisting of the 7 ARK Gardens including the Suntory Hall rooftop garden and rows of cherry trees (total: 700m). Return of wild birds and other elements of a natural ecosystem. | Date of Completion | 1986 |
|---|---|---|---|
| Site area(m2) | 41,186 | ||
| Building area(m2) | 22,853 | ||
| Green area(m2) | 8,780 | ||
| Green ratio* | 21.3% | ||
| Atago Green Hills | Greening project that makes the most of Edo-era flora while preserving Mt. Atago natural environs and enhancing the existing garden. Mt. Atago, Seiso temple and offices/residences of the twin towers all linked by greenery. | Date of Completion | 2001 |
| Site area(m2) | 38,452 | ||
| Building area(m2) | 10,677 | ||
| Green area(m2) | 11,882 | ||
| Green ratio* | 30.0% | ||
| Akasaka Tameike Tower | Roof garden (100m above ground) serving as a place of rest and recreation for office tenants and residents. Generous planning of fruit-bearing plants such as olive trees and grapevines inspired by the theme “Kitchen Garden”. | Date of Completion | 2000 |
| Site area(m2) | 5,733 | ||
| Building area(m2) | 1,922 | ||
| Green area(m2) | 1,732 | ||
| Green ratio* | 30.2% | ||
| Moto-azabu Hills | Greening of approx. half of the site based on the concept “the city itself should be a forest”. Rooftop and balcony greening using “moss in net” in addition to ground level greening. | Date of Completion | 2002 |
| Site area(m2) | 12,308 | ||
| Building area(m2) | 3,676 | ||
| Green area(m2) | 5,960 | ||
| Green ratio* | 48.4% | ||
| Roppongi Hills | Creation of approx. 1ha of green through development that included planting some 68,000 trees. Diverse green space including a rice paddy on the rooftop of the theater building and restoration of a Japanese garden. | Date of Completion | 2003 |
| Site area(m2) | 84,779 | ||
| Building area(m2) | 57,000 | ||
| Green area(m2) | 21,920 | ||
| Green ratio* | 25.8% | ||
| Holland Hills | “Fragrance”-theme garden offering the enjoyment of lavender, clematis and other flora rich in fragrance. Integration of greenery of the adjoining embassy (Netherlands) and eventual creation of a green urban network. | Date of Completion | 2005 |
| Site area(m2) | 3,545 | ||
| Building area(m2) | 2,347 | ||
| Green area(m2) | 897 | ||
| Green ratio* | 25.0% | ||
| Omotesando Hills | Theme of “historic legacy” inspired a project with buildings kept at the same height as the rows of zelkova trees lining the boulevard and harmonization with existing greenery as well as rooftop greening. Also greening of wall surfaces. | Date of Completion | 2006 |
| Site area(m2) | 6,051 | ||
| Building area(m2) | 5,030 | ||
| Green area(m2) | 1,845 | ||
| Green ratio* | 30.0% | ||
| Total Green Area: | 53,016m2 | ||
※Excluding public use land
※Green ratio = ratio of land/surface covered with trees/grass to a prescribed area (site) that is land/surface covered with trees/grass.
- Mouri Garden at Roppongi Hills
Increased “green” area through urban redevelopment
Approximately 1ha of new green area has been created through redevelopment that included planting of over 68,000 trees and shrubs.
- Pre-development “green” area: 1.65ha
- Post-development “green” area: 2.56ha (including public land)
- ROPPONGIHILLS DATA
- Planted trees/shrubs: approx. 68,000
Fostering the growth of a forest in the city
ARK Hills
- ARK Garden
In the creation of the rows of 150 cherry blossom trees, the 7 ARK Gardens, and the rooftop/ surface greening, we undertook not only the careful selection of plants to match each environment but also pursued the development and application of new greening techniques. We have also fostered community activities that involve the green environment and sought ways to further contribute to the area through, for example, the formation of the “Hills Gardening Club” that looks after the greenery of both ARK Hills and Roppongi Hills, holds gardening shows and other activities.
- ARK GARDEN DATA
- ARK Garden Total:
- Trees/Shrubs: approx. 40,000
- Flowers/Flowering shrubs: approx. 12,700
| Garden Name | Size/Length | Varieties | Main Types |
|---|---|---|---|
| Main Garden | approx. 720m2 | Flower:70 | Pansies, Kashiwaba hydrangeas, garden cyclamen, Christmas roses |
| Four Seasons Garden | approx. 570m2 | Tree/shrub：30 Flower：70 | Pulsatilla cernua, Mountain hyrangea, dwarf Japanese quinces |
| Container Garden Yard | approx. 200m2 | Flower：40 | Feijoa sellowiana, daisies, golden ninebark |
| Roof Garden (Usually closed to the public) | approx. 1,220m2 | Flower：60 | Phlox, scarlet maple, patrinia scabiosifolia, Chinese crabapple |
| Rose Garden (Usually closed to the public) | approx. 360m2 | Tree/shrub：15 Flower：30 | Cherokee roses, banksia roses, Japanese roses |
| Palette Garden | approx. 250m2 (along city sidewalk) | Tree/shrub：10 Flower：40 | Marguerites (chrysanthemum frutescens), euryops daisies, conifers |
| Back Garden | approx. 260m2 | Flower：15 | Lilies, hydrangeas, Christmas roses |
20 Years of Tree Growth
- ARK Hills “Sakura” Cherry Blossom Tree Growth Record (Trunk thickness)
For the opening in 1986, many cherry trees were planted with the aim of restoring the sight of the old sakura trees that once blossomed in the area. At that time, the trunk thickness of the newly planted trees averaged 28cm. After 20 years of careful care (2006), this had increased by 82.9cm to 110.9cm.
Recognition of numerous environmental awards
| List of environmental awards received to date. | ||
|---|---|---|
| Year | Award Name | Organization |
| FY2002 | Urban Green Space Award "Minister of Land, Infrastructure and Transportation Award" | Urban Green Space Development Foundation |
| FY2005/2006 | SEGES (Social and Environmental Green Evaluation System) Urban Green Space Award Stage 3 | Urban Green Space Development Foundation |
| FY2006 | Road Day "Distinguished Service for Roads -Director of the Construction Bureau Award" | Ministry of Land, Infrastructure and Transport |
| Energy Globe Award | Energy Globe (Austria Citizen Group) | |
| FY2007 | SEGES (Social and Environmental Green Evaluation System) Urban Green Space Award Stage 3 | Urban Green Space Development Foundation |
| Road Day "Distinguished Service for Roads –Minister of Land, Infrastructure and Transportation Award" | Ministry of Land, Infrastructure and Transport | |
| Prize of the Minister of Land, Infrastructure and Transport in the 17th Global Environment Awards | FujiSankei Group | |
