October 31, 2022
Sumitomo Realty & Development Co., Ltd.

Mita 3- and 4-chome Area Type 1 Urban-Redevelopment Project

Sumitomo Realty’s largest office towerwith a gross floor area of approx. 200,000 m2

Acquired “ZEB Ready” certification in recognitionof superior environmental performance
Scheduled to complete in February 2023

Sumitomo Realty & Development Co., Ltd. (Headquarters: Shinjuku-ku, Tokyo; President: Kojun
Nishima; hereinafter “Sumitomo Realty”) is pleased to announce that the office building (42floors above ground and 4 floors below ground), the core of the Mita 3 & 4-Chome District Type
1 Redevelopment Project, was certified as “ZEB Ready” on October 31 under the BuildingHousing Energy-Efficiency Labeling System (BELS). Sumitomo Realty has been promoting thisredevelopment project as a project partner and participating cooperative member. This is the firsttime receiving this certification among office buildings we developed.
The Shinagawa and Tamachi area, where the Mita 3- and 4-chome project site is located, isexpected to function as the south gate of Tokyo due to its location adjacent to Haneda Airport,and Shinagawa Station which is planned to be a stop on the future Linear Chuo Shinkansen.
There are multiple development projects planned for the area, including this project, and thearea is in the midst of a phase of great transformation. The project site, which has been
designated as a national strategic special zone, covers approximately four hectares facing theFudanotsuji Intersection. It is a large-scale development with a total gross floor area ofapproximately 229,000 m2, consisting of four buildings, including offices and residences withdiverse functions. It will function as a hub for business exchange and a living environment tocontribute to attracting foreign-owned businesses and workers from overseas, and making thecity more attractive.
The office building, the core of the project, has been
Office Building
certified as “ZEB Ready,” indicating that it reduces
primary energy consumption by 50% or more. It
accomplishes both high product performance andenvironmental performance befitting a flagship building
by adopting highly effective thermal insulation glassthat enhances thermal insulation of the building, and byinstalling energy-saving equipment such as highefficiency air conditioning systems and lighting.
We have been promoting development that ensuresa high level of environmental performance, and we will
make further efforts to achieve carbon neutrality by2050.

Exterior rendering of the office building,the core of the project

Certification label* ZEB stands for “Net Zero Energy Building,” a certification standard for rating buildings which seek to achieve net zero building energy consumption whileproviding comfortable indoor environments.

■ Large-scale development of a complex with a gross floor area ofapprox. 229,000 m2
This large-scale project consists of four buildings which include offices, residences, a cultural andcommunity facility, a commercial and lifestyle support facility, and an educational facility. The officebuilding, the core facility of the project, is planned to be used mainly as offices, and its lower floors andunderground floors are developed with eating and drinking establishments. Furthermore, there areeducation facilities (an elementary school and a nursery school) along Mita-dori Street and two urban
residential buildings with 225 units along Hijirizaka Street on the north side of the site, thereby forming an
attractive new hub that combines diverse functions.

Hizirizaka

Residential Bldg. 1

Residential Bldg. 2

Complex Tower 1(Office bldg.)
Mita Twin Bldg. West

Complex Tower 2(Completed in 2006)

Mita-dori StreetDaiichi Keihin

Project site map■ A new landmark - the approx. 215 meter tall office building
The office building, which is the heart of the project, stands approx. 215 meters tall (42 floors above
ground and 4 floors below ground), and has a gross floor area of approx. 200,000 square meters, making
it the largest among the buildings we have developed. The building’s exterior inherits the elegant red brickdesign of the nearby Sumitomo Fudosan Mita Twin Building West/East, which are operated by Sumitomo
Realty.

Exterior rendering of the office buildingRepresenting the tenant companies, the office entrance welcomes visitors with an open space featuring a twostory atrium with 9.5 meter high soaring ceilings and a floor area of approx. 1,500 m2. There is also a Sky
Lobby on the 27th floor, welcoming visitors for upper floors, and four shuttle elevators with a speed of 540
meters per minute provide smooth access to the Sky Lobby.

Entrance hall rendering (shuttle elevator side)

Entrance hall rendering (garden side)
Approx.
90 m

1,203.68 tsubo

Approx.
18m(3,979.02m2)

Approx.
32 m
Approx.
9m

Emergency
supply storage

Approx.
2m

Elevator
Hall

Approx.
63 m

Emergency
supply storage

Powder room
Emergency
supply storage
IC card-compatible lockers
for office workers

Approx.
2m
LegendSpace for stairs
inside office

Approx.
7m[Floor load: 1,000㎏/m2][Floor load: 500㎏/m2]

Ostomate toilet
Elevator for VIP
Women’s restroom
Men’s restroomApprox.
56 m

The standard floor plan for lower floors

The standard floor area features a large space of approx. 3,980 m2 (approx. 1,200 tsubo) on the 4th to the11th floors and approx. 2,940 m2 (approx. 890 tsubo) on the 12th to the 42nd floors, which is free of pillars
or columns with a ceiling height of 3.0m, enabling efficient and flexible layouts. In addition to the open
views, the building is provided with state-of-the-art equipment such as fully-independent HVACs, low-e
double glazing glasses, grid-system ceilings, LED lights with brightness sensor, making it suitable for theheadquarters of large enterprises and adequate for functioning as Tokyo head office of foreign-owned
companies and major regional companies.

■ BCP compliance for the peace of mind
The building features a hybrid structure of seismic isolation and damping systems, with an intermediate
seismic isolation layer installed beneath the Sky Lobby on the 27th floor, seismic control walls equippedon each floor, and seismic damping devices implemented on the roof, reducing shaking in the event ofearthquake and ensuring the safety and security of tenants’ staff and visitors.
A two-line power receiving system is adopted in which an auxiliary line continues to supply power if themain line ceases to supply power due to an accident, etc. In the event of a power outage, emergency
power generators that run on medium-pressure gas will be used to supply power not only to common
areas but also to leased spaces. In addition, even if the medium-pressure gas is not available due to agas line rupture or other incident, heavy oil power generation will supply electricity to common areas andleased spaces for 72 hours, thus establishing triple backup system.
Damping devices

01 Damping system

Damping wall

In addition to a wind vibration control systeminstalled on the roof to absorb vibration energy,
damping walls reduce sway from wind andearthquakes.

Shaking of
thisbuilding

02 Seismic isolation system

Shaking ofbuilding without
seismic
isolation

免震

Seismic isolation device

A seismic isolation layer is installed beneath theSky Lobby floor to absorb shaking. By
suppressing the direct transmission of seismicenergy to the building, this layer protects humanlife and mitigates the risk of office equipment
being overturned.

03 Firm groundShaking of seismic isolation layers

Earthquake
shaking

地盤

According to theLiquefaction Potential
Map from the Tokyo
Metropolitan Government,
this building is located in
an area that has a low
risk of liquefaction.

Tokyo Mita
redevelopment project
Tokyo Mita
redevelopment project

Degree of liquefaction potential
Reference: Liquefaction Potential MapLow
Revised 2012 by Civil Engineering
Moderate Support and Training Center of theHighTokyo Metropolitan Government(As of August 2021)

浸水リスク回避04 Flooding
risk avoidance
According to the Flood Hazard Map of Minato
Ward, this building is located in a safe area with arelatively low risk of flooding.
(Reference: Minato City official website as of June 2021)

Furukawa undergroundreservoir
As a preventive measure against
flood damage from theincreasing number of large
typhoons and heavy rains inrecent years, a 3.3 km-longunderground reservoir has been
constructed under the FurukawaRiver, which runs from Minato
Ward to Shibuya Ward.

Conceptual drawing of the structure

Land since
the Edo period

The building site is
located west of theformer coastline ofthe Edo period andtherefore theground is secureand reliable from ahistoricalstandpoint.

■ “Tsuki no Misaki” (Cape of the Moon), a popular spot in the Edo
period, has become a notable site for a moss phlox* that is without* “Shibazakura” in Japanese, meaning “lawn cherry blossoms.”
parallel in Tokyo
We created a greenbelt and plaza spanning approx. 15,400 m2, connecting to the premises of theSumitomo Fudosan Mita Twin Building West. It is close to the bustling Fudanotsuji Intersection, and canbe widely used for revitalization of the community, community interaction, and disaster preparedness.
The surrounding area of the site is called “Tsuki no Misaki,” one of the One Hundred Famous Views ofEdo. During the Edo period, part of the area was famous as a place to watch the moon over the sea.
However, the landscape has been lost due to pastdevelopment of the area. In this development
project, we have restored the slope green with
Green Space No.1
(2,500 m2)
native plant species, taking advantage ofThe green spacehistorical elevation differences. We have alsoconnecting to the existing
adjacent green spacecreated a spacious garden landscape befitting alandmark with moss phlox covering green space
Mita JuniorHigh School(No. 1 and No. 2) of approx. 5,500 m2.
Fudanotsuji Intersection
Continuous
green space
The plaza and green space that covers
Plaza No.1 (4,800 m2)
approximately 4,800 m2, which are also open toA lively plaza that brings
various people together andresidents and visitors, not only serve as a spaceserves as a community spacewith benches for rest and relaxation, but alsofunction as a disaster prevention plaza with
Mita Twin
Green Space No.2
cooking stove benches, manhole toilets, andBuilding West(3,000 m2)
emergency supply storages, etc. Coordinated with Existing green space
Green area
utilizing slopes
the entrance of the office building, it provides atemporary evacuation site for people who havedifficulty returning home in the event of a disaster.
②①

Conceptual drawing of Green Space No. 1 as viewed from the north side

Conceptual drawing of a view from a pedestrian deck④③

Existing slope green of Mita Twin Building West

Conceptual drawing of a view from Daiichi Keihin side■ Developing a pedestrian network that makes the area easier to getaroundIn the past, the area’s pedestrian network faced problems such as a broken line of flow due to elevationdifferences between the Fudanotsuji Intersection and the Hijirizaka-side residential area at the top of arise, along with highways and JR train lines preventing movement between the Mita and Shibaura areas.
In conjunction with the replacement of the existing pedestrian bridge, a pedestrian deck that passes overthe Dai-Ichi Keihin Road will be constructed, together with barrier-free elevators. The deck will connect
multiple areas such as Mita, Shibaura, the Tamachi Station West Exit, Shinagawa Station, and Hijirizaka,with the aim of making the area easier to get around in, and providing greater convenience.

A pedestrian deck as viewed from Tamachi Station side

■ Urban development in conjunction with surrounding facilities
The project is being carried out in coordination with our other facilities that are located nearby, such as
La Tour Mita, a premium leasing residence and Bellesalle Mita, which provides rental conference
rooms in Sumitomo Fudosan Mita Twin Building West, as well as Hotel Villa Fontaine Grand Tokyo –Tamachi in Sumitomo Fudosan Mita Twin Building East, to provide business interchange features andcreate a living environment that contributes to strengthening the function of attracting foreign-owned
businesses and workers from overseas.
Mita Twin Building West
Bellesalle Mita

Mita
Building

Tamachi Ekimae
Building

Mita Twin Building East
Hotel Villa Fontaine
Grand Tokyo – Tamachi

La Tour Mita

Tamachi First
Building

Tamachi
Building

Tamachi
Building East■ Background to the development
FY 2010
FY 2017
FY 2018
FY 2019
FY 2022
FY 2025

The Mita 3 & 4-Chome District Urban Redevelopment Preparation Association established
Urban Planning Decision Notice issued
Approval issued for establishment of the Mita 3 & 4-Chome District Urban Redevelopment
Association
Right transfer plan approved, construction started
The office building (Complex Tower 1): Operation starts (planned)
Construction completes (Planned)■ Overview of the office building
Site area:

Approx. 4 ha

Gross floor area:

Total of four buildings

Approx. 229,000 m2

Of which, the office building

Approx. 200,000 m2(42 floors above ground and 4 floors below ground, 215 meters tall, purposes: office, conference room, retail, etc.)
Shibadaimon Bldg.
Izumi Shibadaimon Bldg.

Azabu-juban Sta.
Akabanebashi Sta.

Shibazono Bldg.
Shibakoen Tower
Daimon Bldg.

Azabujuban Bldg.

DaimonSta.

Hamamatsucho
Sta.

Shibadaimon 2-chome Bldg.

Takeshiba
Sta.

Shibakoen Sta.

Shibakoen First Bldg.

Shiba Bldg. 4
Shiba 3-chome Bldg.

Shiba Bldg. 3
Shiba Bldg. 2

Shiba Bldg.
Hinode Sta.

Office building of the Tokyo Mita
redevelopment project

Mita Sta.
Tamachi Sta.
Mita Bldg.

Shirokanetakanawa Sta.

Mita Twin Bldg. West

Tamachi Ekimae Bldg.

Mita Twin Bldg. East
Tamachi Bldg.
Tamachi Bldg. East
Tamachi First Bldg.

Shibaurafuto Sta.

Yokoso Rainbow Tower

Sengakuji Sta.

Shibaura Bldg.

Takanawa
Gateway Sta.
Buildings we manageand operate

TakanawadaiSta.

Shinagawa Konan Bldg.

Shinagawa Sta.
Site area