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Manchester Office Sustainability Refit – BREEAM Excellent

Proposal #7 · Submitted 2026-08-06
70
Recommend Approval
Strong financial return with acceptable payback period and positive NPV.
Requestor
Name
Alicia Torres
Email
Role
ESG & Sustainability Lead
Region
EMEA – UK North
Business Unit
Operations & Real Estate
Proposal
Description

Retrofit Manchester office (650 sqm): solar PV (30kWp), air-source heat pump, enhanced insulation, EV charging bays (x8), and rainwater harvesting. Target BREEAM Excellent to support SLR's 2030 net-zero commitment.

Strategic Rationale

SLR's own operations must align with net-zero advice given to clients. BREEAM Excellent certification is increasingly a bid qualifier for public sector frameworks.

Approver Information
Urgency
Low – aligned to 2026 capex cycle
Risk Level
Low
Risk Description
Supply chain delays for heat pump units possible; 2-month buffer built in.
Alternatives Considered
Carbon offsets only evaluated — does not deliver operational savings or certification.
Vendor / Supplier Shortlist
Engie, E.ON Energy Solutions, Mitie Net Zero
Implementation Timeline
7 months
Dependencies
Landlord consent to structural works
Regulatory Requirement
No
Carbon / Sustainability Impact
Saves 87 tCO2e/yr; 20-year cumulative 1,740 tCO2e
Financial Metrics
CapEx £345,000
Annual OpEx Change –£28,000
Annual Benefit £42,000
Useful Life 20 yrs
Payback Period 4.93 yrs
ROI (life-of-project) 305.8%
NPV £342,270
ROIU (yr 1) 20.3%
Cumulative Return (£)
YearCumulative (£)
Yr 1 £280,185
Yr 2 £220,171
Yr 3 £164,603
Yr 4 £113,151
Yr 5 £65,510
Yr 6 £21,398
Yr 7 £19,445
Yr 8 £57,264
Yr 9 £92,282
Yr 10 £124,705
Committee Decision
Current status: Pending