Housebuilders & Developers
Solar Panels for UK Housebuilders & Developers
Part L 2025 and the Future Homes Standard make on-plot solar de facto mandatory on most UK new-builds from 2026. We deliver volume housebuilder solar at scale — site office through to plot-by-plot install.
Volume
Site & plot delivery
Part L 2025
Compliant
FHS
Future Homes Standard
National
UK coverage
For UK housebuilders, on-plot solar moved from an optional spec uplift to a regulatory near-mandatory inclusion under Part L 2025 and the Future Homes Standard. Our team delivers integrated solar across volume housebuilder programmes — site office, sales suite, plot-by-plot install, plus the integrated battery and EV charging that increasingly come bundled.
What Part L 2025 Means for Housebuilder Solar
The 2025 Part L update materially raised the energy efficiency bar for UK new dwellings. While solar PV is not strictly mandated, achieving the new dwelling carbon emission targets without on-plot solar (or equivalent renewable generation) is impractical for most house types. The Future Homes Standard (2025–2027 transition) builds on this with an explicit zero-carbon-ready requirement.
In practice, ~95% of UK new homes from late 2026 onward include on-plot solar PV — typically 2.5–4kWp per dwelling. We supply and install at this scale across volume housebuilders.
What We Deliver for Volume Housebuilders
- Plot-by-plot solar PV install: 2.5–4kWp per dwelling. Tier-1 panels, typically integrated (in-roof) for design quality.
- Site office and sales suite solar: 5–15kW for site facilities, often with battery for after-hours sales viewings.
- Show home solar: Working installation visible to prospective buyers; integrates with EV charging and battery storage display.
- Integrated EV charging: 7kW Type 2 charger per plot, increasingly with smart-grid management.
- Battery storage: 5–10kWh per plot on premium specifications.
- Volume procurement: bulk panel and inverter purchase across phases / sites for cost efficiency.
- BBA / NHBC compliance: all systems specified to comply with NHBC roof and structural standards.
- SAP modelling: we work with the developer's SAP assessor to confirm Part L compliance.
UK Housebuilders We Work With
- Top-10 national housebuilders (volume programmes)
- Mid-tier regional housebuilders
- Custom-build and self-build developers
- Affordable housing partnerships (housing associations, Homes England)
- BTR (build-to-rent) developers
- Purpose-built student accommodation (PBSA)
- Care home and retirement village developers
Project Scale
Typical engagement: 100–800 plots per development phase, repeating across 2–10 years per scheme. We work to the developer's plot-release schedule, integrated with brick-and-block trades to install at watertight stage.
Commercial Structures We Use
- Direct supply-and-install contract per phase
- Framework agreement across multiple sites with fixed pricing
- JCT-style sub-contract under main contractor
- Design-and-build engagement where developer wants single-point-of-responsibility
Frequently Asked Questions
Is solar mandatory under Part L 2025?
Solar PV is not strictly mandated, but achieving the Part L 2025 dwelling emission rate without on-plot solar (or another renewable source) is impractical for most house types. In practice, ~95% of new homes from late 2026 include solar PV.
How big are housebuilder plot solar systems?
Typically 2.5–4kWp per dwelling — sized to deliver Part L compliance for the specific house type. Larger detached homes often spec 4–5kWp plus battery; mid-terrace homes typically 2.5–3kWp.
What is the Future Homes Standard?
FHS is the UK government's standard for new homes from 2025–2027, requiring all new dwellings to be zero-carbon-ready. In practice this means heat pumps + on-plot solar + battery as the default specification.
Can you deliver across multiple sites simultaneously?
Yes. We operate volume programmes across regional housebuilder portfolios, typically 100–800 plots per phase across 5–15 active sites. Bulk procurement and dedicated site teams keep pricing and programme on track.
Do you work as sub-contractor to the main contractor?
Yes. We work direct to developer, as sub-contractor under JCT-style main contracts, or as design-and-build single-point. Whichever contracting structure suits the scheme.
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