Do solar panels add value to your house?
What the evidence actually says.
Installers often claim solar panels add a specific percentage to your property value. The truth is more complicated. This guide covers what research suggests, what buyers and lenders actually think, how leased panels affect a sale, and what to check if you are buying a house that already has solar panels.
Solar panels may add value to your home, but no specific figure is reliable and installers who quote a percentage uplift are overstating the certainty. The clearer benefits are the improved EPC rating, which matters increasingly to buyers and lenders, and the transferable electricity savings which a buyer will continue to enjoy. Owned panels are viewed positively by most buyers. Leased panels and rent-a-roof arrangements can complicate a sale and need careful handling. The primary financial case for solar remains the energy savings during your ownership, not the resale uplift.
Do solar panels increase home value in the UK?
The question of whether solar panels increase home value is one where installers and the research tell quite different stories. Installers frequently quote figures suggesting solar adds 4 to 14% to property values. The academic and surveying evidence is more cautious.
UK-specific research on the solar panel property value effect is limited. Studies from the US, where solar adoption is more mature and transaction data is richer, tend to show a positive effect on sale price for owned systems. UK evidence is thinner. Surveys of estate agents and buyers suggest that solar panels are viewed positively by many buyers, particularly younger buyers and those with EVs, but that the effect on sale price is highly variable and rarely translates directly into a measurable premium in UK transactions.
Any installer who tells you solar panels will add a specific percentage to your property value is stating something they cannot know. Property value depends on location, buyer demand, the local market at the time of sale, the age and condition of the system, and many other factors that have nothing to do with solar panels. What is more supportable is that solar panels are unlikely to reduce your property value if they are owned outright, in good condition, and properly documented. They may contribute positively in the right market conditions and with the right buyer. They are not a reliable investment strategy for house price growth, and anyone buying solar panels primarily to increase their home's value is making a decision on weak foundations. The energy savings during your period of ownership are the solid financial case.
The more concrete connection between solar panels and property value runs through the EPC rating. Solar panels typically improve a property's Energy Performance Certificate score, which matters more than it used to. Higher EPC ratings attract green mortgage products with lower interest rates from some lenders, and buyer awareness of energy costs has increased significantly since 2021. An EPC uplift from a D to a C or B is a tangible, documentable improvement that any buyer can verify. This is a more defensible argument than a percentage property value claim.
What makes solar panels a positive or negative factor for buyers?
Not all solar installations are viewed the same way by buyers. Here is what makes a solar system more or less attractive to a prospective purchaser.
| Factor | Effect on buyer perception | Notes |
|---|---|---|
| Owned outright | Positive | Panels transfer with the property. No complications. |
| Good EPC improvement | Positive | Documentable, verifiable, matters to lenders. |
| Modern system, recent install | Positive | Long warranty period remaining. Inverter unlikely to need replacing soon. |
| Smart Export Guarantee income | Mildly positive | Transfers to new owner. Small but verifiable ongoing income. |
| Old system, ageing inverter | Neutral to mild concern | Buyer may factor in inverter replacement cost. |
| Leased panels or rent-a-roof | Complicated | Can delay or complicate sale. Some lenders refuse to lend. Needs legal advice. |
| Poor installation or no MCS cert | Negative | May cause issues with insurance and future sale. |
Leased solar panels and rent-a-roof arrangements: what you need to know
Rent-a-roof solar panels and leased solar panels became common in the UK during the Feed-in Tariff era, roughly 2010 to 2019. Under these arrangements, a solar company installs panels on your roof at no cost to you. In return, the company owns the panels and receives the Feed-in Tariff income. You typically get free or discounted electricity during daylight hours.
Leased solar panels complicate property sales in several ways. The lease or licence agreement is attached to the property and must be disclosed to buyers and their solicitors. The solar company retains rights to the roof space, usually for 25 years from installation. Mortgage lenders vary in how they treat these arrangements: some will lend without conditions, some require comfort letters from the solar company, and some will not lend at all on properties with certain types of agreement.
If you are selling a house with solar panels under a lease or rent-a-roof agreement, get legal advice before listing. Your solicitor will need to provide the full lease or licence agreement to the buyer's solicitor at the outset. If the agreement has onerous terms or a long remaining period, this may put some buyers off or require renegotiation with the solar company. Some sellers have bought out the lease before sale to remove the complication entirely, though this involves a cost.
If you are buying a house with solar panels, always ask whether the panels are owned or subject to a lease. Your conveyancing solicitor should check this as part of standard property searches, but it is worth confirming explicitly. If leased panels are involved, review the full agreement and ask your mortgage broker whether your lender will accept the arrangement before you proceed.
What to check when buying a home with solar panels
Buying a house with solar panels is generally straightforward when the panels are owned outright and the system is well documented. Here is a practical checklist of what to verify before exchange.
| What to check | Why it matters |
|---|---|
| Owned or leased? | Determines whether the panels transfer simply or involve a third-party agreement |
| MCS installation certificate | Confirms the system was installed to the required standard. Required for Smart Export Guarantee registration. |
| Age of panels and inverter | Panels last 25 to 30 years. Inverters 10 to 15 years. Budget for inverter replacement if near end of life. |
| Remaining panel warranty | Most panels have a 25-year performance warranty. Check how much is left and whether it transfers. |
| Smart Export Guarantee contract | SEG payments can transfer to you as new owner. Confirm with the energy supplier before completion. |
| Feed-in Tariff (pre-2019 installs) | FiT payments are generally not transferable. Older installs may still be generating FiT income for the seller only. |
| Buildings insurance | Confirm your insurer will cover the system. Most standard policies cover roof-mounted solar but worth checking. |
| Solar panel survey | A specialist solar panel survey can check system output, inverter health, and panel condition if you want peace of mind before committing. |
A solar panel survey by a qualified electrician or MCS-accredited company can give you a health check on the system before you complete. This is particularly worth considering for older systems where the inverter may be approaching end of life or where the seller cannot provide documentation of servicing history.
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Get a free quoteQuestions people ask about solar panels and property value
They may, but no specific percentage is reliable. UK research on this is limited. Owned solar panels in good condition with a long remaining warranty are viewed positively by most buyers. The more concrete benefit is the EPC rating improvement, which matters to buyers and mortgage lenders. Do not buy solar panels primarily to increase your home value. The energy savings during your period of ownership are the sound financial case.
Owned solar panels in good condition are unlikely to reduce your property value and may contribute positively, particularly with buyers who are energy-conscious or own an EV. Do solar panels add value to your home in a reliably measurable way? The honest answer is that the evidence is variable and market-dependent. The EPC improvement and the transferable Smart Export Guarantee income are more concrete and documentable benefits than a sale price premium.
First confirm whether the panels are owned outright or subject to a lease. If owned, ask for the MCS certificate, the age of the system, the inverter age, and any remaining panel warranty documentation. Check whether Smart Export Guarantee payments can transfer to you. If the system predates 2019, ask about Feed-in Tariff payments, which generally do not transfer. Consider a solar panel survey for older systems. Buying a home with solar panels is straightforward when the paperwork is in order.
They can. Leased solar panels involve a third party retaining rights to your roof space, usually for 25 years from installation. This must be disclosed to buyers and their solicitors. Some mortgage lenders will not lend on properties with certain types of solar lease. If you have a rent-a-roof arrangement, get legal advice before listing your property. Your solicitor will need to provide the full agreement to the buyer's solicitor at the outset of the transaction.
Yes. Solar panels typically improve your EPC score because they reduce your property's reliance on grid electricity. An improved EPC rating can make your property more attractive to buyers and may qualify for green mortgage products with lower interest rates from some lenders. An EPC uplift from D to C or B is a documentable improvement that any buyer can verify independently, making it a more reliable claim than a percentage property value increase.
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