Environmental Initiatives and External Certification (E)


  • Introduction of LED lighting (as of October 31, 2023)
    Number of buildings where LED lighting is already installed: 46 out of 108 buildings
  • Extension of durable life through large-scale repair and value enhancement work
  • Renewal of air conditioners
  • Update to water-saving toilets
  • Introduction of keycards
  • Deliberate utilization of green lease, etc.
  • Posting of posters on energy-saving and the three Rs
  • Acquisition of external certifications
  • Introduction of renewable energy power for common area electricity (as of October 31, 2023)
    Introduced at 80 out of 108 buildings
  • Prompte the installation of rooftop solar panels
    Proceed Ishikawadai Electricity generated by solar panels
    10,507.0kWh (May 10,2022 to April 30,2023)

Environmental Performance Targets and Results

SPI and the Asset Management Company continuously monitor energy usage in the common areas of portfolio properties as much as possible and promote reduction of their environmental load. Our environmental performance targets and results are as follows.

Environmental Performance Targets

Item Reduction Target
Energy usage Cut energy consumption intensity 5% from FY2021 to FY2026(average 1% per year)
GHG(CO2)emissions Cut energy consumption intensity 5% from FY2021 to FY2026(average 1% per year)
Water usage Avoid increasing water consumption intensity from FY2021(±0)

Environmental Performance Results

Item FY2021 FY2022
Energy usage Total(MWh) 2,281 2,148
Intensity(MWh/m2) 0.051 0.047
GHG(CO2)emissions Total(t-CO2) 979 222
Intensity(t-CO2/m2) 0.022 0.005
Water usage Total(m3) 961 824
Intensity(m3/m2) 0.027 0.022
  • The aggregation period is May to April of each year.
  • The energy usage, GHG(CO2) emissions and water usage results are aggregated from only the common areas of each property.
  • GHG(CO2) emissions are calculated by the Asset Management Company based on adjusted emission coefficients, etc. published by the Ministry of the Environment for each electricity utility.

Acquisition of external certifications

Participation in GRESB Real Estate Assessment

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 in 2009 by a group of major European pension funds who played leading roles in launching Principles for Responsible Investment (PRI).

Currently, about 150 Investor Members use GRESB data for their investment decision-making and engagement with investees, and several institutions from Japan including Government Pension Investment Fund (GPIF) utilize GRESB Assessment results. In 2023, 2084 listed or private real estate companies/funds participated in GRESB Real Estate Assessment.

In the 2023 GRESB Real Estate Assessment, SPI received a “1 Stars” in GRESB Rating, which is based on GRESB Overall Score.

SPI also received the second highest “B Level” for the GRESB Public Disclosure, which assess the width of ESG disclosure.

Comprehensive Assessment System for Built Environment Efficiency(CASBEE)

  • Proceed Nishiarai(Artier)

    Proceed Nishiarai(Artier)

Building-Housing Energy-Efficiency Labeling System (BELS)

  • Proceed Monzennakacho

    Proceed Monzennakacho
  • Proceed Maihama

    Proceed Maihama
  • Proceed Sendai Kamisugi

    Proceed Sendai Kamisugi