7 External Sustainability Evaluation
External Sustainability Evaluation


In the 2025 GRESB Real Estate Assessment, HRR received a “3 Stars” for the 5th year in a row in GRESB Rating, which is based on GRESB Overall Score and its quintile position relative to global participants. It also won a “Green Star” designation for the 6th consecutive year by achieving high performance both in “Management Component” that evaluates policies and organizational structure for ESG promotion, and “Performance Component” that assesses environmental performance and tenant engagement of properties owned.
Moreover, HRR also received the highest “A Level” for the GRESB Public Disclosure, which assesses the width of ESG disclosure as well as 2024.
GRESB is an annual benchmarking assessment to measure ESG (Environmental, Social and Governance) integration of real estate companies and funds, as well as the name of organization which runs the assessment. It was founded by a group of major European pension funds who played leading roles in launching Principles for Responsible Investment (PRI). It is utilized by major institutional investors in Japan and overseas when selecting targets for investment.


Amid efforts to disclose ecological information through CDP, which has the world's largest environmental database, we submitted responses to enhance transparency and address climate change, striving to comprehensively understand environmental and financial information. In 2025, we expanded our scope to include water security and received a “B-” rating for climate change and a “C” rating for water security.

In July 2025, HRR obtained “BBB ” in the MSCI ESG rating.
*MSCI ESG rating
MSCI ESG ratings are designed to help institutional investors identify ESG (environmental, social and governance) risks and opportunities. Companies are rated on a scale of “AAA ” to“ CCC ” based on their exposure to industry-specific ESG risks and their ability to manage those risks relative to their sector peers.
MSCI is a financial service company based in New York, the United States. It is listed on the New York Stock Exchange and provides a variety of tools to support investment decisions for institutional investors around the world, including large public pensions, asset managers, and hedge funds.
Acquisition status of green building certification
外部評価_グリーンビル認証非表示時test
Of the properties we hold, the following is the status on the acquisition of green building certification.
- Number of certified properties :
- 39
- The above data are based on acquisition status as of April 30, 2026.

HOSHINOYA Karuizawa (Harunire Terrace) (S Rank ★★★★★) (Acquired 2026)
◆Particularly highly evaluated aspects:
Energy/greenhouse gases, Biodiversity/site, Indoor environment
◆Environmental performance features:
・Energy consumption is reduced through proper management of facility equipment.
・The location is highly convenient, within a 3-minute walk from public transportation (bus stop).
・The building features numerous operable openings and an outdoor terrace, enabling effective natural ventilation.
・The design incorporates a high window-to-wall ratio to allow ample natural light, contributing to a reduction in lighting energy consumption.
・The building features clerestory windows, contributing to an improved indoor environment.


Grand Prince Hotel Osaka Bay (S Rank ★★★★★) (Acquired 2026)
◆Particularly highly evaluated aspects:
Energy/greenhouse gases, Water
◆Environmental performance features:
・Energy consumption is reduced through proper management of facility equipment.
・The location is highly convenient, within a 4-minute walk from public transportation (station).
・The renovation work has resulted in the use of Eco Mark-certified products in the interior materials.
・The green spaces within the site are accessible from public sidewalks, reflecting a plan that takes into consideration building users and local residents.
・The use of clerestory windows and skylights contributes to an improved indoor environment.


RISONARE Yatsugatake (S Rank ★★★★★) (Acquired 2025)
◆Particularly highly evaluated aspects:
Water, Biodiversity/site, Indoor environment
◆Environmental performance features:
・Active efforts and initiatives are being implemented to enhance biodiversity.
・Eco Mark-certified products and designated procurement items under the Act on Promoting Green Procurement have been utilized for interior materials as part of the renovation work.
・Daylight utilization features, including skylights and clerestory windows, have been actively incorporated throughout the building, contributing to an enhanced indoor environment.
・The guest rooms are designed with openings for natural ventilation and outdoor terraces, allowing guests to control the introduction of fresh air at their discretion.


RISONARE Atami (S Rank ★★★★★) (Acquired 2025)
◆Particularly highly evaluated aspects:
Energy/Greenhouse Gases, Water, Biodiversity/site, Indoor environment
◆Environmental performance features:
・Energy consumption is reduced through proper management of facility equipment.
・The sanitary fixtures have been upgraded to water-saving specifications, effectively reducing water consumption.
・Designated procurement items under the Act on Promoting Green Procurement are used for interior materials during renovation work.
・The project preserves the existing greenery on-site, incorporates native vegetation, and ensures a green coverage ratio of 20% or more.
・Clerestory windows are installed in the hotel lobby, improving the quality of the indoor environment.
・The guest rooms have a high window-to-wall ratio, ensuring ample natural daylight.
・The guest rooms include operable openings for natural ventilation and are connected to an outdoor terrace.


ANA Crowne Plaza Hiroshima (S Rank ★★★★★) (Acquired 2025)
◆Particularly highly evaluated aspects:
Energy/Greenhouse Gases, Biodiversity/site
◆Environmental performance features:
・Energy-saving measures are implemented in collaboration with employees.
・Energy consumption is reduced through proper management of facility equipment.
・The location is highly convenient, within a 3-minute walk from public transportation (station).
・It is a high-rise building over 60m high and has received structural certification.
・Equipment to utilize natural daylight has been adopted, and plans are being made to actively bring natural light indoors.
・The site is actively being worked on to improve biodiversity, with a greenery rate of over 20%, and facilities and management policies for the proper maintenance of plantations have been established and implemented.


ANA Crowne Plaza Kanazawa (A Rank ★★★★) (Acquired 2026)
◆Particularly highly evaluated aspects:
Energy/greenhouse gases, Water
◆Environmental performance features:
・The location is highly convenient, within a 3-minute walk from public transportation (station).
・Water usage is reduced by utilizing well water.
・It is a high-rise building exceeding 60 m in height and has received structural certification.
・The hotel lobby features clerestory windows, which contribute to improving the indoor environment.


the b kobe (A Rank ★★★★) (Acquired 2026)
◆Particularly highly evaluated aspects:
Energy/greenhouse gases, Water, Biodiversity/site
◆Environmental performance features:
・Energy consumption is reduced through proper management of facility equipment.
・The location is highly convenient, within a 2-minute walk from public transportation (station).
・There are no disaster risks, and the site is highly safe.
・Clerestory windows and skylights are installed, contributing to an improved indoor environment.


KAI Alps (A Rank ★★★★) (Acquired 2025)
◆Particularly highly evaluated aspects:
Energy/Greenhouse Gases
◆Environmental performance features:
・The building is engineered to achieve high energy efficiency as outlined in the energy conservation plan.
・Water-saving sanitary fixtures have been installed, effectively reducing water consumption.
・Groundwater is used as the primary water source, significantly reducing the reliance on municipal water.
・Active efforts to promote biodiversity include planning green spaces and water features in the courtyard to create diverse ecological habitats that preserve species diversity, as well as developing walking trails that allow guests to experience and connect with nature.

CASBEE is a system for evaluating the comprehensive environmental performance of buildings that has been developed and disseminated in Japan under the initiative of the Ministry of Land, Infrastructure, Transport and Tourism. CASBEE Real Estate Certification is a system in which a third-party organization reviews the assessment content of buildings that have been assessed by CASBEE - Real Estate and certifies the appropriateness of the evaluation. The assessment is displayed on a four-level scale (S Rank: Excellent to B Rank: Meets required standards). Please refer to the website below for details concerning CASBEE Real Estate Certification.
CASBEE Certification website:
https://ibec.or.jp/CASBEE/english/certificationE.htm

Certified on after April 1, 2024
| Evaluation | Name of property |
|---|---|
| ★★★☆☆☆ | |
| ★★☆☆☆☆ | |
| ★☆☆☆☆☆ |
Certified before March 31, 2024
| Evaluation | Name of property (evaluated building(s)) |
|---|---|
| ★★★★★ | |
| ★★★★☆ | |
| ★★★☆☆ | |
| ★★☆☆☆ | |
| ★☆☆☆☆ |
