【H1】Sustainability

Social Initiatives

Initiatives with Tenants snd Local Communities

Initiatives with Tenants and Local Communities

Policy and Approach

Currently, more than half of the world population lives in cities. Therefore, the importance of cities is increasing more than ever. In order to build a sustainable city, we believe that it is necessary to prepare an environment that is safe, resilient and rich in many aspects.

For Japan in particular, the protection of human life and property from natural disasters including large earthquakes are social issues. We believe that remedying the weakening of local communities in urban areas is also a challenge that needs to be addressed.

Safe and tough office buildings and residences with rich environments and a local community are attractive to tenants, and establishing these kinds of environments will provide competitive advantages to our business activities. MHR and MIM aim to provide safe, convenient and comfortable spaces to our tenants.
We will emphasize BCP (business continuity planning) through enhancing hard aspects such as earthquake resistance performance and emergency power supply as well as soft aspects such as administrative structure for disasters.

Additionally, in working on cooperation with local communities we aim to enhance relationships, revitalize the entire region and maintain and improve asset value.
 

BCP Measures

We promote the enhancement of BCP measures from various viewpoints so that tenants can use office and residential spaces safely and comfortably even when there are disasters.
Seismic Damping and Seismic Isolation
Most of the properties owned by MHR have the highest level of seismic performance such as with wall dampers and vibration dampers in the buildings. MHR has the lowest portfolio PML among all listed J-REITs.
※ PML (Probable Maximum Loss) refers to the probable maximum loss ratio expected to result from an earthquake. A smaller figure indicates superiority in earthquake-resistance.
Roppongi Hills Mori Tower: The Highest Grade of Earthquake Resistance Performance in Japan

Roppongi Hills Mori Tower utilized a combination of semi-active oil dampers (viscous dampers) and unbounded braces (steel dampers) to achieve the highest grade of earthquake resistance performance in Japan, ensuring that the building will continue to function even in the event of an earthquake on the same level as the Great Hanshin-Awaji Earthquake and the Great East Japan Earthquake Disaster.
These systems greatly reduce building movement, whether swaying due to wind or movement due to major earthquake, delivering high levels of safety and comfort to the residents. During the Great East Japan Earthquake, at the restaurant on the 51st floor not a single wine glass fell over.

Earthquake Countermeasures to Match The Characteristic of The Building
MB, which developed the properties owned by MHR, has various quake-resistant engineering standards and various structural methods are selected according to development advantages and space usage.
<Toranomon Hills Mori Tower>

This building employs three types of vibration control device, brake dampers, and unbounded braces. These achieve advanced anti-seismic performance allowing continuity of business without major damage, even of a major earthquake on par with the Great Hanshin-Awaji Earthquake or The Great East Japan Earthquake.
By adopting such vibration control devices, Toranomon Hills Mori Tower holds JSCA (Japan Structural Consultants Association) “Special Glade” seismic resistance performance.

<ARK Mori Building>

The building was designed so that in the event of a major earthquake, vibration is concentrated in the “Slit Wall” vibration-damping systems in order to protect pillars ad beams, minimizing structural damage.

<Atago Green Hills Forest Tower>

Ordinarily 50-100-ton oil dampers were used in residence buildings of this size, however in order to obtain lager vibration-damping effects, we made use of the large installation space available and installed 200-ton dampers.

Emergency Electric Power System and Disaster Supplies

Among MHR’s properties, Roppongi Hills Mori Tower is equipped with a private power generation system with its own energy plant, and most of the other properties also have high-performance emergency power supply functions.
MB, which manages and maintains MHR’s properties, handles various stockpiles necessary for times of disaster such as stockpiling food for approximately 270,000 meals, blankets, medicine and portable toilets for each facility, all of which is the largest scale in the private sector. These are prepared for each facility.

Stable Supply of Power from An Independent Power Station: Roppongi Hills

Roppongi Hills uses its own energy plant (specially designated power supply business facility) to supply electrical power to the area.
Because this plant uses city gas (medium pressure gas) as the fuel, it is not affected by power restrictions on the use of electricity and is able to provide an extremely stable supply of electricity power.
The use of a power supply with triple redundant safety allows us to construct a power supply system with high reliability exceeding that of ordinary S-class building.

<High reliability of city gas (medium pressure gas) supply>

A looped and networked supply route is used for the city gas (medium pressure gas) that is used as fuel power generation (normal power generation) at Roppongi Hills. In addition, the city gas medium pressure lines are more resistant to earthquake than the electrical power infrastructure, and are a highly reliability utility infrastructure.

Emergency Management Systems

MB, which manages and maintains MHR’s properties, has established disaster prevention houses within the business area of a 2.5 km radius from Roppongi Hills to conduct prompt initial activities in the event of an emergency such as an earthquake, and about 100 residents are positioned as disaster-prevention persons who are prepared to act in emergency situations.


Tenant Satisfaction Surveys

MHR conducts tenant satisfaction surveys once every two years in office buildings and once a year in most residential properties. The survey content starts with general matters such as location and image to matters related to facilities and other hard aspects as well as soft aspects such as management systems. The thoughts of the tenants are used as a reference in our property management.

Local Communities

We aim to foster a rich environment for the local community through various communication activities. In MHR’s properties such as Roppongi Hills and ARK Hills, events and activities are held like the Roppongi Hills Bon Festival Dance, Hills Marche and Hills Machi-Iku Project in which local people can participate.

Roppongi Hills Bon Festival Dance

At Roppongi Hills, we have been holding the Roppongi Hills Bon Festival Dance, an open event where people can join in a dancing circle, every year since 2003. Men and women of all ages wearing yukata and dancing happily around a yagura (tower) set up at Roppongi Hills Arena makes the summer night exciting. On the eve of this event, about 150 people including tenants of Roppongi Hills and neighborhood elementary, junior high and high school students gather at a local high school gymnasium to perform Rakugeki (Drama-Dance) Roppongi-Gaku which they have practiced diligently. It has become a summer feature that serves represent the local community.

Hills Marche

ARK Hills has been holding the Hills Marche since autumn of 2009 based on the idea of "enriching city living by considering the important element of food." Living in the city proposes a new life style of urban life where you encounter high-quality cooking ingredients gathered from various place of production and, as a result, people living in the city have a connection with people living in places of production. It is this kind of new lifestyle that the event offers a glimpse at.
In the bustling atmosphere, many agricultural products are distributed from farm producer to consumer and a rich communication is nurtured through the joy of interaction between nearby residents and the producers.

Hills Machi-Iku Project
Hills Machi-Iku Project is a project that provides experiential learning opportunities in which children can think about comfortable urban life with the three themes of environment, safety and culture, which are the priorities of MB in city planning. In the Environmental Tour that is held as a part of the project, visitors observe Roppongi Hills’s water-treatment facility while learning about the importance of water resources in urban life through the Water Secret Exploration Tour and learning about the urban environment as they enjoy nature by visiting ARK’s rooftop garden, which is not usually open to the public, through the Hills Green Exploration Tour. In addition to participating through public openings, we also contribute to the education of children in local communities by using this project to provide them with learning opportunities as part of extracurricular studies of nearby elementary schools.