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Carbon and ESG governance for real estate portfolios

Carbon data that survives the audit.

Sustainify AI is a carbon accounting and ESG governance platform for UK real estate portfolios. Factor sets versioned and pinned per reporting period. Calculation runs stored with unique run IDs. Closed periods locked against silent restatements. Built for estates operating under SECR, CSRD and investor scrutiny.

Book a DemoCheck your audit readiness
  • Portfolio grade
  • Governed factors
  • Assurance ready
  • ISO 14064 compatible

Portfolio overview

Example Estates LLP

All buildings · 2024/25

All buildings2024/25
Total emissions
10,998.0tCO2e
4.2%vs previous
11 buildings in scope
Emissions intensity
88.3kgCO2e/m²
6.1%vs previous
Based on 124,600 m² GIA
Data coverage
82%
Complete82%
Partial18%
No data0%
11 of 11 buildings reportingImprove coverage
Target progressOn track
18.4% reduction achieved
Net zero pathway 203044% of the way

Performance at a glance

Share of 10,998.0 tCO2e gross
Scope 1 · Direct
1,482.6tCO2e
Scope 2 · Energy
5,600.9tCO2e
Scope 3 · Value chain
3,914.5tCO2e
13.5%50.9%35.6%
Total energy
27.05mkWh

Consumption behind Scope 2

Flora’s read on this periodAI summary
2024/25

Footprint is 10,998.0 tCO2e, down 4.2% on the previous period, led by Scope 2.

Scope 3 sits at 35.6% of total and is still climbing. Bankside is the one to watch at 96.1 kgCO2e/m².

Total footprint
10,998.0tCO2e
▼ 4.2% vs previous
Scope 2 change
-7.9%
biggest mover
Scope 3 share
35.6%
▲ 2.6% vs previous
Targets
1 of 2
on track
Data gap: Fitzrovia is missing 5 months, so comparisons may be affected.Ask Flora
Building pulse1 alert · 2 watch
BanksideLeak signal on the incoming main · Comfort drift in zone 3Alert
FitzroviaOverheating hours above thresholdWatch
Savile RowFlood exposure raised to mediumWatch
BishopsgateNo flags this periodOn track
water · safety · comfort · climateAll buildings

Emissions trend & reduction pathway

Year-over-year footprint by scope, against the required glidepath

AbsoluteIntensity
15k t10k t5k t0
2021202220232024
Scope 1Scope 2Scope 3Total emissionsReduction pathway
Building performance leaderboard
#BuildingEmissionsStatus
1Bishopsgate2,894.4 tCO2eGood
2Bankside2,151.8 tCO2ePartial
3Savile Row1,486.2 tCO2eGood
4Fitzrovia1,109.7 tCO2ePartial
View all buildings
Requires attention5
FitzroviaOnly 7/12 months of data
BanksideOnly 9/12 months of data
3 submissions awaiting reviewSupplier and tenant data pending approval
Portfolio coverageOnly 82% of buildings fully reporting
Validate outlier performanceBankside, highest intensity at 96 kgCO2e/m²
Data quality snapshot
Complete data9 · 82%
Partial data2 · 18%
No data0 · 0%
Total buildings11
Target progress
TargetAchievedProgressStatus
Net zero pathway 203042% reduction target18.4%44%On track
SBTi near-term 202825% reduction target8.9%36%Behind
View all targets
Fig. 1Portfolio dashboard.

You already know this

You can produce the number. You cannot prove how you produced it.

  • The auditor asks how a figure was arrived at, and the answer is in a spreadsheet somebody has edited since.
  • The GHG conversion factors updated, and last year's baseline quietly changed. Nobody told you.
  • Your GRESB score is capped by how much of your data is estimated, and nobody can tell you exactly how much.
  • A tenant disputes their recharge, and your allocation methodology is a tab in a workbook.

Reported · FY 2024/25

board pack, p.12

3,094.4

tCO2e. Produced on time, signed off, sent out.

Now show your working. The auditor walks it downwards.

  1. RPT-08 / line 14

    The report line the board saw

    Scope 1, 2 and 3, one figure

  2. entry 4471

    A ledger entry underneath it

    27,050,972 kWh × 0.01830 kgCO2e/kWh, ties out to 495.03 tCO2e

  3. imp_8841

    An import batch behind that

    3,910 rows accepted. The factor version in force that day was never written down.

  4. Sheet3!D42

    workbook_final_v7.xlsx

    A typed cell. The comment on it reads "as agreed with FM".

  5. And then nothing.

    no source document · no factor version · no owner · no timestamp

Depth you can actually evidence under questioning

2 of 5 steps
The number is auditable. The provenance behind it is not.

Ungoverned carbon data is not a reporting inconvenience. It is an audit liability.

The platform

Three things, governed properly.

  • Governed calculations.

    UK GHG Conversion Factors versioned and pinned per reporting period. Calculation runs stored with unique run IDs. Closed periods locked against silent restatements. Full Scope 1, 2 and 3 across the portfolio.

  • Governed cost recovery.

    Tenant carbon allocation built into the platform. Time-bound rules across area, headcount, sub-meter and contractual agreements. Allocation feeds recharges, tariffs and carbon price models from the same dataset.

  • Governed intelligence.

    The Living AI monitors the portfolio continuously, explains variance, identifies outliers and surfaces estimation exposure. Every answer traces back to the source activity record, the factor set and the run ID.

Data lineage · entry 4471

All entries

Data Lineage4471UK electricity · Bishopsgate

Scope 2 Scope 3 Chain verified · 14 Oct 2024
Source · Import file
edf-2024-q3.csv
Imported 12 Oct 2024 14:32 by A. Rehman · imp_8841
edf-invoice-q3-2024.pdfmpan-1200051234567-readings.csv
Activity recorded
27,050,972 kWh
UK electricity · Bishopsgate · 1 Jul 2024 to 30 Sep 2024
Factors applied · UK DEFRA GHG 2024 · view set
Scope 2 · Location-basedPRIMARY× 0.0183495,032.8 kg
published 0.01830 kgCO2e/kWhUK DEFRA GHG 2024 · 2024CO2 491,300.2 · CH4 1,240.6 · N2O 2,492.0
Scope 3 · Transmission & distribution× 0.0017146,257.2 kg
published 0.00171 kgCO2e/kWhUK DEFRA GHG 2024 · 2024CO2 45,908.1 · CH4 115.9 · N2O 233.2
Scope 3 · Well-to-tank× 0.00382103,334.7 kg
published 0.00382 kgCO2e/kWhUK DEFRA GHG 2024 · 2024CO2 95,882.4 · CH4 6,120.1 · N2O 1,332.2
Scope 2 · Market-basedreported separately× 00.0 kg
published 0.00000 kgCO2e/kWhREGO backed supply contract · 2024
MISSING_CASCADE Scope 3 (Well-to-tank, transmission and distribution) is not available in the factor set used, this entry’s total excludes it.
CV_BASIS_FALLBACK Net CV requested; the factor set provides Gross-basis values only, Gross was applied.

Read-time checks: MISSING_CASCADE · CV_BASIS_FALLBACK · STALE_PROVENANCE

Gross result
644.62 tCO2eScope 1 + 2 + 3 · 27,050,972 kWh energy
● Scope 2 · 495.03 t · 77%● Scope 3 · 149.59 t · 23%

History

  • Recalculated against UK DEFRA GHG 2024, 4 rows14 Oct 2024
  • Quantity corrected 27,050,792 to 27,050,972 kWh13 Oct 2024
  • Entry imported from edf-2024-q3.csv12 Oct 2024

Feeds

  • Dashboard
  • Emissions Summary
  • SECR / Reports
Calculation lineage view.

Living AI

It finds the problem, works out who needs to know, and tells them.

Most carbon software gives you a dashboard and waits for you to open it. Living AI does not wait. It detects the anomaly, assesses materiality against your reporting thresholds, identifies the right stakeholder for that asset and that scope, composes a precise, context-aware email, and sends it.

And when you do want to ask it something, you ask in plain English. It will also draft a SECR narrative, a GRESB commentary or a CSRD disclosure section from your governed data. Every answer traces back to the source record, the factor version and the run ID. If the data does not support an answer, it says so.

No human prompt. No manual review. No delay.

Explore Living AI →

Living AI · scheduled briefing

To: sustainability@example.co.uk

Scope 2 rose 14% at Bankside last month.

  • Bankside electricity is 14% above the trailing three-month mean.
  • Fitzrovia gas has no readings for March, so the period is incomplete.
  • Portfolio measured share improved from 79% to 82%.

Recommended: confirm the Bankside chiller schedule before the quarter closes.

An autonomous alert, alongside the anomaly that triggered it.

Included, not upsold

You just gave every tenant enterprise ESG tools.

A startup on your third floor cannot afford sustainability software. Add them to your portfolio and they get access to the same platform your sustainability team uses. Free to them. Included for you.

  • 01

    Better tenant engagement

  • 02

    Better Scope 3 data

  • 03

    Stronger compliance submissions

Savile Row · one subscription, five accounts

Sustainify AI, your platform

Landlord subscription · unlimited tenant accounts

199.1

tCO2e returned to you

04

Northwind Studios

520 m² · full platform, £0 to them

12.6

tCO2e

03

Halden Legal

980 m² · full platform, £0 to them

31.4

tCO2e

02

Perigee Bio

1,640 m² · full platform, £0 to them

58.9

tCO2e

01

Marlowe & Field

2,180 m² · full platform, £0 to them

96.2

tCO2e

Common parts, landlord retained

30.0% of the demise

Down: the same tooling your sustainability team uses, extended to every occupier, included rather than upsold.

Up: their consumption comes back measured rather than requested, and lands in your Scope 3 as evidence.

Tooling goes down to the occupier. Scope 3 comes back up.

Scope 3 is a data collection problem. This is how you solve it without asking anyone for a favour.

Two minutes

Would your carbon data survive external assurance?

Six questions. An honest score, and a list of exactly what would fail.

Check your audit readiness →

Built for the frameworks your auditors, investors and regulators require.

12 frameworks
  • UK GHG Conversion Factors
  • SECR
  • CSRD
  • SFDR
  • GRESB
  • TCFD
  • GHG Protocol
  • AR5 GWPs
  • BREEAM
  • TOMs
  • EPC
  • ISO 14064

Insights

Latest thinking

Notes on getting the number right, for teams reporting under assurance.

Read all insights

Governed carbon intelligence for your portfolio.

A one-hour session, tailored to your sector, portfolio size and compliance requirements. Not a generic pitch.

Book a Demo