Great Portland Estates sustainability score: 51/100
Better than 75% of Construction / Real Estate
Leading practice starts at 60. The highest score on SINK is 71.
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Great Portland Estates is a London-listed property company that owns, develops and manages offices in central London. It reported £117.9 million of revenue for the year to 31 March 2026, with about 170 employees.
Founded 1957Head office London, United KingdomStaff ~170 (2026)Revenue £117.9 million revenue (year ended 31 March 2026; 2025: £94.2 million)Website ↗
GPE reports PwC-assured emissions and quantifies the embodied carbon of its developments, but its total emissions rose from 27,695 to 35,507 tCO2e between 2023/24 and 2025/26, driven mainly by the embodied carbon of its developments. Its water use rose, its net-zero roadmap is not SBTi-validated, and it offsets its remaining gas use with Kyoto CER credits rather than replacing it.
Great Portland Estates scores 51/100 (Making progress) on SINK's independent climate assessment, scored from public data only. Scores are free. Nobody can pay to change a score, speed it up or hide it. Last verified November 2026.
That places Great Portland Estates joint 146th of 1,118 companies scored, and 14th of 53 in Construction / Real Estate.
What is Great Portland Estates doing well, and where does it fall short?
Strongest on Carbon Footprint: Operations and Transparency & Accountability (8/10, 8/10). Weakest on Emissions Trajectory and Nature & Biodiversity Impact (2/10, 4/10).
Where Great Portland Estates lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
What would raise this score
- Whether its emissions are fallingShow its emissions are falling.
- Its effect on natureMeasure its effect on nature and have it independently verified.
- Its effect on waterMeasure its water footprint and set reduction targets.
Every question that lost points
- Emissions from its own operations8/10No verified figures published with their method and a falling trend.
- Emissions from its supply chain7/10No full value-chain map or supplier engagement programme.
- Whether its emissions are falling2/10No evidence its emissions are falling.
- How clean its energy is6/10Less than 90% of its energy shown to be renewable.
- Its effect on nature4/10Its effect on nature isn't measured or independently verified.
- How it uses materials and handles waste6/10No verified figures for reuse and recycling across the business.
- Its effect on water4/10No measured water footprint with reduction targets.
- Its climate targets5/10Its targets aren't science-based or committed to the Science Based Targets initiative.
- How openly it reports8/10No mission-locked structure, such as B Corp certification.
A score changes when the evidence does. We use new published evidence at the next rescore. Anyone can send us new evidence, free. How to send it.
How is Great Portland Estates's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Great Portland Estates's score based on?
14 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
29% of them were published by Great Portland Estates itself; the rest come from independent sources.
GPE prints a total of 35,507 tCO2e using location-based Scope 2; the total shown (33,674 tCO2e) is our sum of its Scope 1 (1,437 tCO2e), market-based Scope 2 (0 tCO2e) and Scope 3 (32,237 tCO2e).
10 of 14 sources are independent of the company.
“Total Scope 1 and 2 emissions (market-based) (tCO2e) Page 59 GHG Emissions 1,437”
“Total Scope 1 and 2 emissions Total Scope 1 and 2 emissions 3,814 tCO2e”
“Total Scope 1, 2, & 3 emissions”
“we currently exclude: 8. Upstream Leased Assets, 9. Downstream Transportation and Distribution, 10. Processing of Sold Products,”
“increasing biodiversity net gain, and contributing to local air quality improvement”
“performance and executive remuneration.”
“aiming to reduce emissions by 42% by 2030 and 90% by 2040 (from our 2023 baseline);”
“a new commitment to remove gas-fired boilers entirely from its buildings by 2030”
“Schemes that start after 1 st April 2025 will target a minimum circularity score of 40%, rising to 50% for those starting after 1 st April 2030.”
“GPE plans to convene circularity focus groups with its supply chain to further promote the circular economy.”
“In their place, the firm will erect a 10,000-square-metre complex for Great Portland Estates”
“so we won’t change our strategy based on what the government does,” GPE Senior Investment Manager Alexa Baden-Powell told Bisnow”
“it did emphasise the importance of climate change and biodiversity to our business”
“Great Portland Estates has adopted a circularity score that measures the percentage of reused materials incorporated into its developments.”
If you believe a source has been misread or a newer version exists, submit a challenge.
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How does Great Portland Estates compare with other construction / real estate companies?
Where Great Portland Estates sits among construction / real estate peers.
Among the 53 major construction / real estate brands we've scored, Great Portland Estates sits 14th of 53.
Who scores higher in Construction / Real Estate?
The 3 companies in the sector scoring nearest above Great Portland Estates.
Unite Students reports verified Scope 1&2 emissions flat since 2023 despite REGO-backed electricity, while Scope 3 from embodied carbon in new builds rose 8% in 2025.
See the breakdown →Derwent London reports comprehensive operational emissions data with PwC assurance, but embodied carbon from its demolition-led development model rose 43% in 2025, offsetting operational gains.
See the breakdown →Howden Joinery has delivered material absolute emissions reductions and achieved its 2030 Scope 3 target ahead of schedule, backed by SBTi validation.
See the breakdown →Which companies moved this week, and why.
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