HemeraScope Asset Management

Portfolio

Pawston Estates · 2024 reporting year

Portfolio intensityi
27.5 ± 2.4 kgCO₂e/m²/yr

Portfolio total 164.8 tCO₂e (95% CI 145.0188.5 tCO₂e). One benchmark- estimated building drives most of the band width.

Buildingsi
3
Portfolio tCO₂ei
164.8
Data coveragei
71%
Reduction headroomi
~67 tCO₂e

What the numbers say

Pawston House is 82% of the portfolio

One building carries most of the footprint — it is the single biggest lever. The other 2 buildings together are 18%. Prioritise Pawston House for data quality and reduction work.

1 building still benchmark-estimated

Riverside Court rely on benchmark estimates — not GRESB-eligible. A tenant data request closes the gap.

Down 16.9% vs the 2022 base year

A real downward trend across the portfolio. The chart below splits the headline change from the underlying operational improvement.

Portfolio footprint over time

01112222022198.42023181.22024164.8tCO₂e

-16.9% against the 2022 base year. Five-year rolling rate normalises construction-year peaks; fixed activities (tenant energy) are tracked separately from variable ones.

Buildings

BuildingTypeEPCFloor areatCO₂ekgCO₂e/m²Tenant data
Pawston HouseOfficeB4,000134.533.6Actual
Riverside CourtOfficeD2,60013.55.2Estimated
The Old ExchangeOfficeA1,50016.811.2Actual

Carbon intensity by building

Pawston House33.6 kgCO₂e/m²
Riverside Court5.2 kgCO₂e/m²
The Old Exchange11.2 kgCO₂e/m²

Scope 3 by category — all 15

Cat 1 Purchased goods and servicesi6.0 tCO₂e
Cat 2 Capital goodsi3.5 tCO₂e
Cat 3 Fuel- and energy-related activitiesi14.0 tCO₂e
Cat 4 Upstream transportation and distributioni1.0 tCO₂e
Cat 5 Waste generated in operationsi0.8 tCO₂e
Cat 6 Business traveli2.5 tCO₂e
Cat 7 Employee commutingi1.5 tCO₂e
Cat 8 Upstream leased assetsi0.2 tCO₂e
Cat 9 Downstream transportation and distributioniNot applicable
Cat 10 Processing of sold productsiNot applicable
Cat 11 Use of sold productsiNot applicable
Cat 12 End-of-life treatment of sold productsiNot applicable
Cat 13 Downstream leased assetsi133.5 tCO₂e
Cat 14 FranchisesiNot applicable
Cat 15 Investmentsi1.8 tCO₂e

Category 13 — downstream leased assets (tenant energy) — dominates, as the UKGBC guide expects for a property owner.

Provenance — how 164.8 tCO₂e is built up

Pawston Housetraced to records on its page134.5 tCO₂e
Riverside Courttraced to records on its page13.5 tCO₂e
The Old Exchangetraced to records on its page16.8 tCO₂e
Portfolio total164.8 tCO₂e

The portfolio number is a pure sum of published buildings — nothing is introduced at the portfolio level. Each building in turn derives line-by-line from tenancy records, pinned emission factors and the UKGBC accuracy ladder.