Resourceful

Places to Transform

We are committed to enabling sustainable living for our residents and tenants, driving initiatives that deliver operational efficiencies and enhanced building performance. Leveraging a data-driven approach, we strive to integrate sustainable design across our portfolio, improve our resource efficiency, and encourage residents and tenants to reduce their own environmental impact.

View down a pathway between mid-rise residential buildings at sunset, with outdoor chairs and tables and landscaped gardens
565 Hank by Windsor, Atlanta, GA

Since 2016, GID has worked to maintain its recognition and strong standing with GRESB, routinely exhibiting excellence across our sustainability portfolio. GID currently submits GRESB assessments for six of our funds, participating in both the Standing Investment and Development modules to ensure our commitment is measured and recognized at every stage.1

GRESB
Modern atrium area with seating, a fireplace and a wall-mounted television, leading to an outdoor courtyard
Windsor Mystic River, Medford, MA

In 2025, our Responsible Investments program received the following results from GRESB across our six submissions:

Multifamily

2nd Place — Joint Venture II

  • 5 Star rating
  • Second consecutive year in the top five
  • First place in the Residential Assessment

3rd Place — Joint Venture I

  • 5 Star rating
  • Seven consecutive years in the top five
  • Second place in the Residential Assessment

22nd Place — Open-End Vehicle I

  • 3 Star rating
  • 17% score improvement since 2023
  • 17th place in the Residential Assessment

Industrial

2nd Place — Colony Commerce Center

  • 4 Star rating

9th Place — Evergreen

  • 2 Star rating

19th Place — Industrial Joint Venture I

  • 1 Star rating

2025 Multifamily Environmental Targets and Performance2

Energy3

2027 target: Reduce energy use intensity by 20% from a 2017 baseline

Reduction from baseline

29.7%

Target achieved

 

GHG Emissions

2027 target: Reduce GHG emissions intensity by 20% from a 2017 baseline

Reduction from baseline

25.5%

Target achieved

 

Water

2027 target: Reduce water use intensity by 20% from a 2017 baseline

Reduction from baseline

17.2%

Progress to target

86.0%

Waste4

2027 target: 50% diversion rate

Diversion rate

24.9%

Progress to target

49.8%

2025 Industrial Environmental Targets and Performance5

Building Certifications

2033 target: Achieve 30% certified by floor area

Total floor area with a building certification

29.0%

Progress to target

85.7%

Energy Data Coverage

2033 target: Achieve 75% coverage by floor area

Energy data coverage

57.4%

Progress to target

47.2%

Water Data Coverage

2033 target: Achieve 75% coverage by floor area

Water data coverage

56.8%

Progress to target

48.7%

Cool Roofs

2033 target: Achieve 65% coverage by floor area

Cool roof coverage by floor area

66.0%

Target achieved

 

How We Are Reducing Our Footprint

  • Produced 4,500 MWh of renewable energy

  • Saved over 170 million gallons of water through smart irrigation systems

  • Installed 332 electric vehicle (EV) charging ports, bringing the total to 1,418 ports serving 136 properties

Awards

As of 2025, 152 properties now hold at least one building certification for sustainability or energy rating.6 During the year, we were honored to receive the 2025 Technology and Innovation LEAP Award for the GID Industrial Value Fund.7

This year, 12 properties — five industrial sites and seven multifamily communities — also earned recognition through the Jackson Control Sustainability Awards, being identified as top performers in their asset class compared to other IREM Certified Sustainable Properties (CSPs). This underscores the strength of our on-the-ground execution and our commitment to high-performing, resilient operations across asset types.8

Four GID colleagues, one holding a trophy, in front of LEAP award branding

Leveraging Data to Reduce Our Impact

When it comes to collecting data, we look to cutting-edge property technology (proptech) developments to support our efforts. This includes leveraging solutions such as:

  • Heating, ventilation, and air conditioning (HVAC) optimization — Parity uses smart remote technologies to effectively control HVAC systems, while Logical Buildings provides comprehensive smart building software on-site to deliver further energy savings
  • Smart irrigation, using Banyan Water controls and software integration to deliver water consumption savings
  • Shadow metering and smart meter technologies for electricity use at industrial properties
  • EV charging stations that support GHG emissions reductions from vehicles
  • Smart leak-detection systems
  • Smart building and apartment home-access systems
A waterfront cityscape, a person standing on a balcony. The background shows a body of water and several high-rise buildings
Waterline Square, New York, NY

Saving Energy with Efficient Technology

We take a thoughtful approach to apartment renovation projects, typically building in energy-conservation measures that will help lower our overall energy consumption and deliver operational cost savings to both our investors and our residents.

For example, the Parity system generates energy savings by making automated and remote-control micro-adjustments to central heating, cooling, and ventilation equipment in real time based on current and future demand. Additionally, the Parity team provides monitoring and technical assistance, helping maximize demand response revenue through system automation and direct support for on-site associates.

We have engaged Parity at seven multifamily assets to date, saving over 2 million kWh of electricity so far. In early 2026, Parity was implemented in two additional properties, with five more scheduled to be completed during the coming year.

Modern residential interior with wooden shelving, books and decorative objects, lounge chairs, and floor and table lamps
The Ashley, New York, NY

Reducing Our Water Consumption

During 2025, we took various steps to reduce water consumption and improve water efficiency across our portfolio. For example, we have installed a total of 26 smart irrigation systems to help monitor, control, and reduce irrigation water use, and are pleased to report these systems have saved over 170 million gallons of water to date. We are reviewing water meters across the portfolio and aim to have separate irrigation meters at each site to allow for more effective tracking of outdoor water consumption.

To further reduce outdoor water use, we are removing non-native or exotic plants with heavy irrigation requirements in favor of locally adapted native plants. This also has the potential to benefit local ecosystems by protecting native biodiversity and fauna.

A modern kitchen area with a long countertop
Windsor Buckman, Portland, OR

Making Trash Smarter

At all our multifamily properties, we offer convenient recycling facilities, featuring well-placed recycling bins in brightly lit, accessible locations with clear instructional signage. Also, through collaboration with waste-disposal specialists Waste Management, we provide site assessments to walk our property teams through potential improvements. Since 2023, these assessments have led to improvements across our portfolio, reducing costs associated with excess trash yards and contamination. These savings were realized by implementing training and education, optimizing equipment use, determining proper service frequency, and a variety of other initiatives aimed at improving our waste-management procedures.

A modern light interior kitchen space
Windsor Westminster, Westminster, CO

Encouraging More Sustainable Travel

We want to help our communities live more sustainably, including by promoting lower-impact transportation. We offer a variety of solutions that can help residents reduce their environmental impact, such as secure bicycle storage and repair facilities and EV charging stations, and we also participate in community shuttle services at several of our properties across the portfolio.

To facilitate the use of EVs across our residential portfolio, we maintain strategic partnerships with:

  • ChargePoint, the EV station manufacturer and platform provider
  • Rexel Energy Solutions, our equipment specialist
  • SitelogIQ®, the program coordinator and installer

At our residential properties, we added 332 EV charging ports during 2025. This included the addition of 141 charging ports to four assets in the Bay Area that benefited from significant California Energy Commission rebate contributions, which covered over half the cost of the installation. We now have a total of 1,418 ports, serving 136 different properties across our multifamily portfolio.

When considering where to install EV chargers, we first look for active rebate programs from public funding sources or utilities that will help us fund the project. We then examine residential demand based on evidence that property teams glean from current and prospective residents. Finally, we look at usage data from existing charging stations at our properties as well as nearby stations.

An electric vehicle parked at an EV charging point
Windsor Lantana HIlls, Austin, TX

Sourcing Responsibly

In 2025, we strengthened our commitment to sustainable procurement across our business by implementing a Responsible Investments Commitment Clause in our vendor agreements. Over 17% of Windsor Property Management Company’s purchases from Ferguson, our maintenance, repair, and operations supplier, were products with sustainability credentials. These included appliances, HVAC systems, plumbing fixtures, and lighting, as well as supplies such as cleaning products and personal protective equipment. The sustainability-designated products we purchased from Ferguson meet a range of certification standards, including ENERGY STAR, the U.S. Environmental Protection Agency’s (EPA) Design for the Environment, and Green Seal.

We are continuing to work with Staples to identify more sustainable procurement practices for stationery products. During 2025, we also implemented the Ecolab chemical dilution system, using only floor and bathroom cleaning products that meet Green Seal standards.

A modern interior space with shelving, a wall design, TVs, lighting fixtures, a counter top and snooker/pool table
Windsor Clearwater, Clearwater, FL

More information on our sustainability journey is available in the Places to Transform section of our 2025 Responsible Investments Report.

2025 Responsible Investments Report

Explore Responsible Investments at GID

Responsible Investments

Respectful

Responsible

Resilient

Footnotes

  1. GID pays a fee to submit individual investment vehicles to GRESB. Annual rankings are shown in ascending order ending in 2025. GRESB rankings are for the 2025 results. These results were provided by GRESB on October 1, 2025. The data included in these results includes the period from January 1, 2023, through December 31, 2024. Details on the real estate assessment and scoring can be found here.

    The GRESB Star rating is based on the vehicle’s GRESB score (out of 100) and its quintile position relative to all participants in the GRESB Assessment. Top quintile results earn a GRESB 5 Star rating, and bottom quintile results earn a GRESB 1 Star rating.

    • All multifamily portfolios (Joint Venture I ($14B multifamily portfolio), Joint Venture II ($3.4B multifamily portfolio), and Open-End Vehicle I ($3.8B open-end multifamily vehicle)) are in the GRESB peer group: United States, Non-Listed, Residential: Multi-Family, Core. 41 total entities.
    • Colony Commerce Center ($760M industrial portfolio) and Industrial Joint Venture I ($810M industrial portfolio) are in the GRESB peer group: United States, Non-Listed, Industrial: Distribution Warehouse: Non-Refrigerated Warehouse, Core. 30 total entities.
    • Evergreen ($1.5B industrial portfolio) is in the GRESB peer group: United States, Non-Listed, Industrial, Value-added. 19 total entities.

    GID provides asset management services to Evergreen and Colony Commerce Center. However, these assets are owned by La Caisse, and GID maintains no equity investment in these properties.

    Values included represent year-end 2025 (12/31/2025) and are reported to GRESB. ↩

  2. The targets and specific performance metrics disclosed within this passage pertain exclusively to assets in Joint Ventures I and II, excluding assets under construction. ↩
  3. Energy use intensity (EUI) is a measurement of total energy consumption as a function of gross floor area, expressed as kilowatt-hours per square foot, or kWh/ft². Using this metric, we can consistently track total portfolio energy performance regardless of changes in portfolio size. ↩
  4. The waste-diversion rate is a measurement of total waste diverted from landfill by either recycling or composting and is expressed as a percentage of total waste disposed. Unlike our other metrics, waste diversion is reported as an absolute figure and is not a function of portfolio size. ↩
  5. The targets and specific performance metrics disclosed within this passage pertain exclusively to assets within the GID Industrial Asset Managed Accounts and our Industrial Joint Venture. ↩
  6. GID and Windsor Property Management Company are not affiliated with any certification-awarding bodies or organizations. GID pays prerequisite administration fees to cover application, review, and certification expenses. Data represents current building certifications for sustainability from across GID’s multifamily and industrial properties. ↩
  7. GID does not pay a fee for Healthcare of Ontario Pension Plan’s (HOOPP) LEAP Sustainability Awards; the award is only open to partners of HOOPP. The Technology and Innovation Award was earned in 2025 and is valid for one year. ↩
  8. GID does pay a fee as an IREM Member Organization and for IREM CSP certification review. However, no fee was paid for consideration in the Resource Efficiency category of the Jackson Control Sustainability Awards. More information on the awards can be found here. ↩