Solar PV for housebuilders & developers
Per-plot pricing, factory pre-fit and a complete SAP/HEM compliance pack — engineered to keep your FHS cost below £4,350/plot and your completion programme on track. From SME developers to UK Top-10 housebuilders.
The FHS rollout is the largest single procurement challenge UK housebuilders have faced in a generation
Standard house types need redesigning. SAP/HEM assessment time has risen ~5×. Per-plot PV+ASHP costs need to be priced into land bids written today. Three of the UK Top-10 housebuilders use us to insulate against this complexity — locked-in per-plot pricing, factory pre-fit that protects build programme, and a single point of accountability for compliance.
Our PV procurement runs at 50–500 MWp/year scale, which means panel and inverter pricing is materially below retail. We pass the saving back to developers through the bulk package — typically a 20–30% reduction versus the line-item benchmark.
Fixed per-plot pricing
Locked at procurement, no inflation clauses. Includes panels, inverter, mounting, monitoring, MCS certification and commissioning.
Factory pre-fit
In-roof arrays assembled into panelised roof cassettes off-site — site labour drops to a 2-hour final connection per plot.
SAP/HEM compliance pack
Full TER/DER modelling, PV yield calculations, ventilation strategy, TM59 overheating — every plot, every house type.
NHBC-approved warranty
20-year workmanship insurance-backed via QANW — accepted by NHBC, LABC, Premier and Buildmark.
Programme integration
We work to your master programme. Solar handover precedes EPC and Building Control sign-off so completion certificates are not delayed.
Buyer-facing handover
Customer-care pack, app onboarding, snagging visit at 90 days. Reduces post-completion solar-related defect calls by ~80%.
The developer workflow
How we integrate with your team — from land bid to plot handover.
Land bid stage
Per-plot indicative pricing within 48 hours. Lets you bake the FHS premium into your residual land valuation accurately.
Detailed design
House type by house type — array layout, panel count, inverter sizing, cable routing, and the SAP/HEM compliance modelling.
Factory pre-fit
In-roof cassettes built off-site to your roof truss schedule. Just-in-time delivery to plot.
Site & handover
Final connection, commissioning, MCS, EPC and buyer onboarding. Snag at 90 days.
Developer resources
FHS compliance checklist →
Plot-level checklist for Part L 2026 compliance: design, SAP/HEM, Building Control and handover.
Bulk procurement pricing →
How per-plot pricing works at scale, plus indicative ranges for 3-bed and 4-bed house types.
Social housing →
Affordable Homes Programme alignment, PPA models and registered provider workflows.
SAP & HEM modelling →
In-house Elmhurst and Stroma-accredited assessors. Same-week turnaround on house types.
Developer case studies →
240-plot urban extension. 1,200-home garden village. Five-storey BTR scheme. See how we delivered.
FHS compliance calculator →
Quick per-plot sizing tool — input ground floor area, get array kWp, cost and SAP/HEM delta.
What our developer & self-build clients say
Three voices from across the new-build segment — volume housebuilder, custom-build self-build, and a housing association.
"They priced our whole 240-plot site at the land-bid stage, locked the figure in, and delivered on programme. The factory pre-fit on roof cassettes saved us four weeks. Per-plot pricing came in £400 below the FHS Impact Assessment benchmark."
"I was nervous about how FHS would affect our self-build budget. Their architect-led service started at RIBA Stage 2 — by Stage 4 we had a 6.8 kWp in-roof spec, a HEM model showing comfortable compliance, and a price that worked with our build loan stage payments."
"We had to deliver 60 affordable homes to FHS-equivalent spec under AHP 2026 funding. The team handled SAP/HEM modelling across all four house types, NHBC approval and tenant onboarding. Bills are down 86% on average for our tenants — that's a real fuel poverty win."
We specify the manufacturers warranty providers trust
NHBC, LABC, Premier and Buildmark all accept installations using these manufacturers — vetted, IEC-certified, and proven on UK new builds.
Frequently asked questions
Can you supply solar PV across an entire development?
Do you provide the SAP/HEM compliance modelling?
Will warranty providers (NHBC, LABC, Premier) accept your installations?
How do you handle the SAP/HEM transition?
What is the price impact of FHS on per-plot costs?
Do you handle social housing differently?
Talk to our developer team
Tell us your site, plot count and house types. We come back inside 48 hours with indicative per-plot pricing and a compliance brief.