Do Solar Panels Add Value to Your Home? UK

Installing solar panels is one of the few home improvements that can pay for itself through energy savings and potentially raise the asking price when you sell. UK research published in 2024 found that homes with solar panels sold for between 4% and 7.1% more than comparable properties without them — on an average UK house price of around £285,000, that is a premium of roughly £11,000–£20,000. But the uplift is not automatic. It depends on whether the panels are owned outright or leased, the home's EPC rating before and after, the system age, and buyer confidence in the paperwork. This guide covers the evidence and the practical steps both sellers and buyers need to take.

What the UK research actually shows

The strongest evidence comes from a peer-reviewed 2024 study by researchers at Swansea University and the University of Birmingham, published in Energy Economics. Analysing over 1.5 million UK property transactions, they found homes listed with solar panels achieved a sale price premium of 6.1%–7.1% compared with equivalent homes without them. Even under the study's most conservative modelling, the premium held at around 3.5–4%.

EPC band uplift adds a second layer of value. Rightmove's analysis of 200,000 relisted properties found that moving from EPC Band D to Band C added approximately 4% to a home's value (around £11,000–£14,000 on typical prices), while a step from Band E to Band C added roughly 8%. A well-sized solar PV system — typically 3.5–4 kWp or larger — adds approximately 9–18 SAP points to a property's energy score, which is often enough to move a Band D home into Band C or a Band C home into Band B.

Buyer demand is rising. A 2024 YouGov-style survey by The Eco Experts found that 65% of UK respondents said they would be more likely to buy or rent a property if it had solar panels already installed.

Why the uplift varies — and why it is not guaranteed

System age and remaining warranty matter. A brand-new 6 kWp system with a 25-year panel warranty and a 10-year inverter warranty is far more attractive to a buyer than a 15-year-old installation approaching end-of-warranty. Panels degrade by around 0.5% per year on average, so generation output will be lower on an older system, reducing the headline savings figure a buyer is buying into. See our guide to solar panel degradation and warranties for the full picture on what to expect.

System size and EPC starting band. A 2 kWp system on a large, poorly insulated detached house may add relatively few SAP points and not shift the EPC band at all. A 5 kWp system on a well-insulated mid-terrace that is already Band D will typically cross into Band C. The EPC improvement is where the biggest measurable financial gain sits, so systems that do not shift the band deliver a smaller premium.

Owned outright vs. leased panels. In the early 2010s, many installers offered “rent-a-roof” or solar lease arrangements where the homeowner received free installation in exchange for the feed-in tariff income going to the installer, who retained ownership of the panels. If your home has leased panels, this complicates the sale significantly (see below). Owned panels — the standard arrangement for post-2019 installations — transfer cleanly with the property.

Regional variation. The academic research found regional differences in the uplift. Wales showed some of the strongest premiums (estimated £2,310–£4,787 for a typical home), while areas like the South West showed uplifts of £866–£2,156. These regional figures reflect underlying house prices rather than sunnier or less sunny areas, and all UK regions showed a positive premium.

The EPC connection: why band matters so much

EPC bands directly affect mortgage access and buyer pool. From 2025, lenders including Barclays, Nationwide, and Halifax have continued to expand green mortgage products offering lower rates for homes rated EPC C or above. A buyer who can secure a cheaper mortgage on an EPC C-rated home with solar has a concrete financial incentive to pay more for it. From a landlord's perspective, the government target for all rental properties to reach EPC C by 2030 means tenanted homes with solar already meeting that threshold command a significant letting premium.

RDSAP 10 (in use from June 2025) now captures batteries. The updated Standard Assessment Procedure methodology, rolled out across England, Scotland, and Wales from June 2025, allows energy assessors to formally record home battery storage for the first time. If your property has solar plus a battery, a fresh EPC under RDSAP 10 will reflect the combined benefit. See our full guide to whether solar panels are worth it in the UK for how batteries and panels interact on savings and payback.

Selling a home with solar: what you need to prepare

Documentation to gather before listing:

MCS installation certificate — issued at completion by your MCS-accredited installer; proves the system meets UK Microgeneration Certification Scheme standards. Without this, the buyer may be unable to register for the Smart Export Guarantee.
G98 (or G99) notification confirmation — the notice sent to the local Distribution Network Operator before grid connection. Buyers' solicitors routinely ask for this.
Panel and inverter warranties — typically 25 years on panels (from manufacturer) and 10 years on inverters. Retrieve from the installer or manufacturer directly if the original paperwork is lost.
SEG agreement (if applicable) — the export tariff contract with your energy supplier. This transfers to the buyer; contact your supplier to initiate the transfer process.
Latest generation data — annual kWh output from your monitoring app or inverter display. Gives the buyer a real savings baseline to model.

Leased panels require a deed of assignment. If the panels are owned by a third party under a lease or power purchase agreement (PPA), you must contact the panel company at the point of marketing — not at exchange. The lease must be assigned to the buyer via a formal deed of assignment. Many older leases predate the UK Finance compliance standards, meaning a deed of variation (not just assignment) is required before most mortgage lenders will accept the charge. This process can take four to eight weeks and is a known source of delays in solar-panel sales. For the complete seller's checklist — including FIT and SEG transfers, G98/G99 paperwork, and the buyer due diligence checklist — see our dedicated guide to selling a house with solar panels in the UK.

Buying a home with solar: what to verify

Ask your solicitor to request: MCS certificate, G98/G99 confirmation, panel and inverter warranties, any lease or PPA agreement, and the SEG contract. Check who legally owns the panels — registered charges on the title register at HM Land Registry will show if a third-party company has a registered interest.

Check the system with a professional. A solar PV health check (typically £150–£300) by an MCS-accredited installer will confirm whether the inverter is functioning, panels are undamaged, generation is in line with expectation, and there are no roof-fixing concerns. This is cheap insurance on a system that may have 10–20 years of remaining life.

Remortgaging on a solar home. Most major UK lenders are comfortable with owned solar panels. Leased panels are more nuanced — lenders need to be satisfied that their security (the property) is not compromised by a third-party charge. If you are remortgaging a property with leased panels, instruct your mortgage broker early and supply the full lease documentation upfront.

The honest summary

Solar panels do, on average, add value to UK homes — the evidence from peer-reviewed research, Rightmove's EPC analysis, and buyer survey data all points in the same direction. A typical well-sized owned system on a UK home can expect to contribute a 4–7% price premium at sale, with the EPC band shift delivering the most reliably measurable slice of that uplift. The caveat is that old, leased, undocumented, or poorly maintained systems can cause conveyancing complications that offset the perceived value — and sometimes deter buyers entirely. If you are planning to sell within the next five years, the smartest move is to have clean documentation now and, if you have not yet installed, to buy rather than lease.