Sustainability Initiatives

Acquisition of External Assessments/Certifications

Participation in External Assessments

GRESB Real Estate Assessment

The Investment Corporation has continuously participated in the GRESB Real Estate Assessment since 2018.
In the GRESB Rating of the 2023 Assessment, which assigns a rating out of five stars based on where the participant's overall score ranks globally, the Investment Corporation earned a rating of "2 Stars."
Moreover, the Investment Corporation obtained a “Green Star” rating recognizing outstanding achievement in both the Management Component, which evaluates policies, organizational systems, etc. for promoting ESG, and the Performance Component, which evaluates environmental performance, initiatives with tenants, etc., at buildings in the portfolio.
Furthermore, in the 2023 GRESB Public Disclosure assessment, which measures the comprehensiveness of ESG information disclosure, the Investment Corporation was assessed as providing outstanding information disclosure relating to environmental and sustainability initiatives, receiving the top rating of “A”.


GRESB is an industry-led international organization which intends to evaluate sustainability performance of real estate portfolios (including listed funds, private funds and direct investments).
(For detailed information, please refer to the GRESB website. 


Using an ESG evaluation framework created by MSCI ESG Research LLC, the MSCI ESG rating assigns a rating on a seven-tiered scale, ranging from “AAA” to “CCC,” based on exposure to industry-specific ESG risks and management capabilities for handling those risks in comparison with other companies in the same industry. The MSCI ESG rating is one of the parameters for listing companies on the MSCI Japan ESG Select Leaders Index, which is used by the Government Pension Investment Fund as an ESG index for passive management, as well as being used by over 1,300 institutional investors around the world and in the creation of over 1,000 investment indexes.
The Investment Corporation has obtained an MSCI ESG rating of “BB” (as of Nov. 2021).

Acquired External Certifications

As of the March 29, 2024, the total number of properties owned by the Investment Corporation that have acquired a green building certification has become 26, and the ratio of such properties to the entire portfolio properties (based on total floor area of the portfolio properties) stands at around 19.7%.
The breakdown (number of properties, acquisition ratio) by each certification is as follows.

DBJ Green Building Certification

DBJ Green Building Certification Program was launched by Development Bank of Japan Inc. ("DBJ") in April, 2011, for the purpose of supporting properties that demonstrate environmental and social awareness ("Green Building"). Since August 2017, Japan Real Estate Institute (JREI) executes the certification while DBJ controls the overall program. The program evaluates and certifies properties given consideration by society and the economy, providing comprehensive assessment of properties while evaluating various factors which range from the environmental features of properties to communication with stakeholders, such as disaster prevention and considerations for surrounding communities.

Click here for more details about the DBJ Green Building certification system
Property Name Location Evaluation Year
The Residence Honmoku Yokohama Bayside 19-1, Honmokuhara, Naka-ku, Yokohama-shi, Kanagawa ★★★ 2021
Serenite Honmachi Grande 1-4-22 Itachibori, Nishi-ku,Osaka-shi, Osaka ★★★ 2021
Granpark Tenjin 1-8-26, Maizuru, Chuo-ku,Fukuoka-shi, Fukuoka ★★ 2021

BELS Certification

BELS certification is a third-party certification system that rates housing and other buildings based on their commitment to disclosing energy-saving performance based on the Act on the Improvement of Energy Consumption Performance of Buildings by means of a BEI value calculated using primary energy consumption, in accordance with building energy consumption performance standards stipulated by the national government. Evaluation and disclosure based on this system is performed by member organizations (registered housing quality assessment organizations, designated confirmation and inspection agencies, registered building survey organizations, etc.) of the assessment association who have notified of performing BELS-related duties. Buildings are assessed on a five-tiered scale, from five stars (the highest rating) to one star (the lowest rating).

Click here for more details about the BELS certification system
Property Name Location Evaluation Year
Irise Komae Bettei 1-32-5, Higashi Nogawa, Komae City, Tokyo ★★★★★ 2022
AIP Kachidoki-Ekimae 3-5-5 Kachidoki, Chuo-ku, Tokyo ★★★★★ 2022
Aira no mori Higashi-Ofuna 3-15-22 Kasama, Sakae-ku, Yokohama City, Kanagawa ★★★★★ 2022
Aira no mori Shakujiikoen 1-29-15 Miharadai, Nerima-ku, Tokyo ★★★★★ 2022
Senior Forest Yokohama-Tsuzuki 3-31 Mihanayama, Tsuzuki-ku, Yokohama City, Kanagawa ★★★★★ 2022
Good Time Living Center-Minami
・Platesia Center-Minami
56-9 Chigasakichuo, Tsuzuki-ku, Yokohama City, Kanagawa ★★★★★ 2022
Sunny Life Chofu 3-54-1 Tamagawa, Chofu City, Tokyo ★★★★★ 2022
Ishinkan Kamiooka 1-11-13, Okubo, Kounan-ku, Yokohama City, Kanagawa ★★★★★ 2022
PLAISANT GRAND MINAMI YUKIGAYA 3-11-9 Minamiyukigaya, Ota-ku, Tokyo ★★★★ 2022
Sunny Life Hiyoshi 15-8 Yagami, Saiwai-ku, Kawasaki City, Kanagawa ★★★★ 2022
As Heim Tsunashima 4-29-1, Komaoka, Tsurumi-ku, Yokohama City, Kanagawa ★★★ 2022
Good Time Living
2-12-13 Nagatsuta Minamidai, Midori-ku,
Yokohama City, Kanagawa
★★ 2023
Aira no mori Edogawa-Shinozaki 5-9-1, Shinozakimachi, Edogawa-ku, Tokyo ★★ 2022
Charm Premier Kamakurayama 3-20-1, Kamakurayama, Kamakura City, Kanagawa ★★ 2022
Library Shin-Shibamata 8-13-2, Kitakoiwa, Edogawa-ku, Tokyo ★★ 2022
Alpha Living Takamatsu Konyamachi 5-3 Konyamachi, Takamatsu City, Kagawa ★★ 2022

CASBEE Certifications for Real Estate

“CASBEE (Comprehensive Assessment System for Built Environmental Efficiency)” is a method for evaluating and rating the environmental performance of buildings as well as a comprehensive evaluation system for the environmental performance of buildings including consideration to the surrounding landscape in addition to the aspects of environmental load reduction such as energy and resource saving and recycling performance. It evaluates buildings completed no less than one year prior, and they are evaluated with one of the four ratings of Rank S, Rank A, Rank B+, or Rank B.
Click here for more details about the CASBEE certifications for Real Estate
Property Name Location Evaluation Year
Forest Hill SendaiAoba 5-1, KawauchiYodomibashiDori, Aoba-ku, Sendai-shi,  Miyagi Rank A 2024
Serenite ShinOsaka Nibankan 1-3-14, Miyahara, Yodogawa-ku, Osaka-shi, Osaka Rank A 2024
Chijikoukanmae Tower Residence 16-1-1, Kita3jo Nishi, Chuo-ku,Sapporo-shi, Hokkaido Rank A 2024
willDo Kiyosumi 1-2-24, Kiyosumi, Koto-ku, Tokyo Rank A 2023
TK Flats Shibuya 26-7, Maruyamacho, Shibuya-ku, Tokyo Rank A 2023
Sakura Hills Fujimi 5-7, Fujimicho, Naka-ku, Nagoya, Aichi Rank A 2023
Gran Casa Nambamotomachi 2-3-14, Motomachi, Naniwa-ku, Osaka, Osaka Rank A 2023
Serenite Honmachi Grande 1-4-22 Itachibori, Nishi-ku, Osaka, Osaka Rank B+ 2023

JHEP Certification

JHEP certification quantitatively evaluates and certifies the efforts of Ecosystem Conservation Society-Japan to contribute to the conservation and restoration of biodiversity.

For detailed information, please refer to the JHEP website.
Gran Casa Ryokuchi-koen
Rank  A

Assessment Points upon Certifying

  • Installation of a self-managed park courtyard
  • Planting management aimed at improving biodiversity