Construction / Real Estate

Tritax Big Box REIT sustainability score: 49/100

49/100
Making progress+17 since last review
Joint 8th of 40 in Construction / Real Estate

Better than 79% of Construction / Real Estate

Leading practice starts at 60. The highest score on SINK is 71.

Limited independent evidence: only two independent sources cover this company. The score may change as more evidence appears.

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About Tritax Big Box REIT

Tritax Big Box REIT is a UK-listed real estate investment trust specialising in logistics and warehouse assets. The company manages 42–49 million square feet of portfolio primarily for e-commerce and supply-chain operators across the UK and Europe.

More about Tritax Big Box REIT

Listed on the London Stock Exchange, it generates returns through rental income and development activity.

Head office GBStaff ~100–200Revenue ~£305M (2025 per Wikipedia)Website ↗

Read Tritax Big Box REIT's own report ↗

Our verdict

Tritax Big Box now reports Scope 1, Scope 2 and its material Scope 3 categories, with limited assurance over all but occupier emissions. Its total fell to 100,779 t in 2025 as development slowed, though occupier data is still preliminary. Solar expansion is real. Targets lack SBTi validation. Clean governance and no controversies.

Tritax Big Box REIT scores 49/100 (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 October 2026.

That places Tritax Big Box REIT joint 179th of 1,023 companies scored, and joint 8th of 40 in Construction / Real Estate.

The ten questions

What is Tritax Big Box REIT doing well, and where does it fall short?

Strongest on Carbon Footprint: Operations and Controversies & Red Flags (8/10, 8/10). Weakest on Water Impact and Targets & Commitments (3/10, 4/10).

What's missing

Where Tritax Big Box REIT 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

  • Its effect on waterMonitor its water use and take measures to reduce it.
  • Its climate targetsMake its targets science-based, or commit to the Science Based Targets initiative.
  • Its effect on natureMeasure its effect on nature and have it independently verified.

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 chain6/10No full value-chain map or supplier engagement programme.
  • Whether its emissions are falling6/10No consistent fall over several years across its operations and supply chain.
  • How clean its energy is7/10Less than 90% of its energy shown to be renewable.
  • Its effect on nature5/10Its effect on nature isn't measured or independently verified.
  • How it uses materials and handles waste5/10No measurable waste or recycling targets reported publicly.
  • Its effect on water3/10No monitoring of water use, or no measures to reduce it.
  • Its climate targets4/10Its targets aren't science-based or committed to the Science Based Targets initiative.
  • How openly it reports7/10No annual impact report, or no pay linked to climate targets.

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.

The calculation

How is Tritax Big Box REIT's SINK score calculated?

Same ten questions for every company. No private weighting.

SINK = (0.3 × Base + 0.7 × Performance) × Scale
Industry base impact
Construction / Real Estate sector ceiling.
35 / 100
Performance score
Sum of the ten questions, each scored 0 to 10.
59 / 100
Raw score
Weighted average before scale penalty.
(0.3 × 35) + (0.7 × 59) = 51.8
Scale penalty
Multiplier based on total emissions. Bigger polluters lose more.
× 0.95
Final score
Rounded. Making progress.
49 / 100
How this score has moved

Has Tritax Big Box REIT's score changed?

Tritax Big Box REIT's score has moved from 33 to 49 across 4 recorded reviews, up 16 points.

02550751003310 August 20263318 August 2026323 October 2026497 November 2026
  1. 32 → 49+177 November 2026

    Sources replaced with the company's own or independent reports. Its 2025 report now gives occupier emissions, so its 100,779 t total sets the 0.95x size step, and questions 1, 2 and 3 are raised to match.

  2. 33 → 32-13 October 2026

    Aggregator-citation sweep: broker citations replaced with the primary disclosures they mirror, re-scored through the guarded pipeline under pinned code 9196601.

  3. 33 → 3318 August 2026

    Direction-blind emissions retrieval (agent-fed): basis not-retrieved->scope-incomplete, scale 0.7->0.7, score 33->33. Primary: Tritax Big Box REIT plc Annual Report 2024 (SECR table).

  4. Scored 3310 August 2026

    Initial public score 33 (publish-draft)

Where the evidence comes from

What evidence is Tritax Big Box REIT's score based on?

10 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.

50% of them were published by Tritax Big Box REIT itself; the rest come from independent sources.

[1]Self-reported
Tritax Big Box Sustainability — Governance & TCFD

“It is accredited in ISO 14001 for the environmental management of Tritax Big Box REIT.”

Ongoing
Q1Q7
View →
[2]Self-reported
Tritax Big Box Sustainability Hub

“2024: 87% energy coverage, 90% carbon emissions coverage”

Ongoing
Q2Q4Q5Q8
View →
[3]Self-reported
Tritax Big Box Annual Report 2024

“Pilot TNFD project | Ongoing”

2024
Q2Q3Q5Q6
View →
[4]Self-reported
Tritax Big Box Results — 12 months ended 31 December 2024

“21% reduction in weighted average embodied carbon from completed developments to 287 kg CO₂e per m²”

2024
Q3
View →
[5]Independent source
World Green Building Council — Tritax Big Box Signatory

“Renewable energy is sourced for all direct supplies and energy efficiency is embedded in direct operations.”

Unknown
Q4Q8
View →
[6]Public record
Investegate RNS Announcement — Results 2024

“The embodied carbon target for each project is incorporated into the main building contract, with financial penalties for non-performance.”

2024
Q6
View →
[7]Self-reported
Tritax Management LLP — ESG Performance Recognition

“retained its EPRA sBPR Gold Level certification for the fifth consecutive year”

2025
Q9
View →
[8]Independent source
Sustainalytics 2024 Top-Rated ESG Companies — Tritax Big Box

“Tritax Big Box has been awarded an improved ESG risk rating of 7.6 (8.3: 2023), classified as 'Negligible Risk'”

2024
Q9
View →
[9]Public record
Wikipedia — Tritax Big Box REIT

“Tritax Big Box REIT is a British real estate investment trust investing in 'Big Box' distribution centres.”

Unknown
Q10
View →
[10]Independent source
Sustainability Reports — Tritax Big Box REIT

“Scope 3 accounted for 100% of emissions. Reported across 2 of 15 GHG Protocol categories.”

Unknown
Q2
View →

If you believe a source has been misread or a newer version exists, submit a challenge.

For Tritax Big Box REIT

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    Tritax Big Box REIT: SINK sustainability score 49.

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Tritax Big Box REIT in context

How does Tritax Big Box REIT compare with other construction / real estate companies?

Where Tritax Big Box REIT sits among construction / real estate peers.

Among the 40 major construction / real estate brands we've scored, Tritax Big Box REIT is tied =8th of 40, with 1 other.

=8/40
Tritax Big Box REIT's rank
40
Industry average
19
Industry low
60
Industry high
See all 40 in Construction / Real Estate →
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