Do Solar Panels Increase Property Value? What UK Homeowners Need to Know

Research consistently shows that solar panels increase the value of UK homes, but how much value, and whether that value is recognised at the point of sale, depends on factors most homeowners are not told about when they receive an installer quote. The headline figures from UK research are genuinely encouraging. The conditions that determine whether they apply to your home are less often explained. This guide breaks down the evidence, explains when the uplift is real, and sets out the conditions that can work against it.

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Key Takeaways

• A 2024 Swansea University study analysing approximately five million UK property transactions found that homes with solar panels sold for 6.1% to 7.1% more on average than comparable homes without them.
• Rightmove research found that moving a property from EPC band D to C adds roughly 3% to average UK house prices, with the effect reaching 16% in some regions, meaning the Energy Performance Certificate (EPC) outcome of your solar installation directly shapes buyer demand.
• Solar panels installed under historic Feed-in Tariff (FiT) rent-a-roof lease schemes can complicate conveyancing, deter mortgage lenders, and reduce buyer confidence at sale, producing the opposite effect from an owned system.
• Estate agents and RICS-accredited surveyors do not automatically translate research-modelled uplifts into formal valuations; an uncertified or poorly documented installation may add no recognised value at all in a mortgage assessment.

What the Evidence Actually Says About Solar and Property Value

Owned solar panels increase UK property values by a measurable, data-supported margin. A 2024 study using Zoopla listing data matched to Land Registry Price Paid Data across approximately five million properties found an average uplift of 6.1%–7.1% for homes with solar panels compared to similar homes without them. That makes solar one of very few home improvements with independently verified, large-scale evidence of price uplift at resale.

At a Glance: UK research from Swansea University, covering approximately five million property transactions, found that homes with solar panels sold for 6.1%–7.1% more on average than comparable homes without them. This is a population average, not a guaranteed outcome for any individual property.

The Swansea University and Zoopla Research

A Swansea University study used Zoopla listing records matched to Land Registry Price Paid Data, covering transactions from 2012 to 2018. Researchers compared homes with solar panels to similar homes without them, controlling for other variables including property type, size, and location. 

The finding of a 6.1%, 7.1% average uplift represents the difference in sale price between those two groups. It is a population average across a wide and varied dataset, not a prediction for your specific transaction.

The EPC Connection: How Rightmove’s Data Adds Context

Solar panels improve a home’s Standard Assessment Procedure (SAP) score, which is the calculation that determines its EPC rating. The EPC rating is the A-to-G energy efficiency band shown on property listings. Rightmove EPC research found that moving a home from EPC band D to C adds roughly 3% to its value on average, with the effect rising to 16% in some regions. 

A home that moves from EPC D to C because of solar benefits from both the panel-driven uplift and the EPC band improvement. These are related but distinct effects, and a solar installation that achieves a genuine band improvement strengthens the financial case at resale considerably.

Why Solar Adds More to Some Properties Than Others

The 6.1% to 7.1% average covers a wide range of outcomes. Some homeowners will see stronger uplift; others will see less. The variables that determine where your property sits within that range are worth understanding before you install.

System Size and Generation Capacity

A larger, well-positioned solar PV system reduces energy bills by a greater amount, and that reduction in running costs is the underlying driver of buyer appeal. Buyers and their advisers are increasingly able to verify expected generation output, so a properly designed and documented system is more commercially compelling than one installed without records.

 The generation potential of any system depends heavily on roof orientation and local shading conditions. For a detailed breakdown of what different configurations typically produce, see our guide on how much electricity solar panels generate.

The Buyer’s EPC Expectation

Among buyers aged 25 to 45, EPC rating is an increasingly common search filter on Rightmove. A home that moves from EPC D to C or above because of solar panels appears in more filtered searches and carries a perception of lower running costs. Buyers with green mortgages may also access preferential rates for EPC C and above properties, as mortgage lenders are increasingly factoring energy efficiency into their risk assessments. 

That broader buyer pool and improved mortgage accessibility can support a stronger offer at sale.

When Solar Panels Do Not Add Value, The Honest Answer

Solar panels can complicate a property sale rather than enhance it. Three specific conditions produce that outcome, and each is worth understanding clearly before you list a property or commission an installation.

Estate Agent Discretion and Buyer Perception

Estate agents are not obliged to quantify the value of solar panels in their appraisals, and many are cautious about attributing specific uplift figures. Industry commentary from agents reflects a pattern that research alone does not capture: some buyers value low energy bills, while others prioritise aesthetics, are uncertain about maintenance, or simply do not factor solar into their offer. 

The Swansea University research models a population average. Individual transactions depend on individual buyers in specific local markets. Acknowledging that honestly is not pessimism; it is the information you need to set realistic expectations.

The Problem with Uncertified Installations

A solar panel installation that was not carried out by an MCS certification-accredited operating company cannot be registered for Smart Export Guarantee (SEG) payments. The SEG is the arrangement by which energy suppliers pay homeowners for unused electricity sent back to the grid. A buyer may expect to inherit that income stream. 

Beyond export payments, surveyors and solicitors will look for evidence that the installation was completed to recognised standards. MCS certification is the accepted baseline for demonstrating that. An installation without it may be flagged in a home buyer survey or cause a mortgage lender to request additional evidence before proceeding, which can delay or complicate exchange. 

Whether solar panels are worth it in the UK depends in part on ensuring the installation is properly documented from day one.

Leased Solar Panels and Conveyancing Risk

Leased solar panels, installed under historic FiT rent-a-roof schemes that are now closed to new applicants, can complicate a property sale in ways that owned systems do not. The lease is typically attached to the property title and transfers to the buyer on completion. Some mortgage lenders will decline to lend where the lease terms are not acceptable to them. Buyers may request the seller resolves the lease before exchange. This is not a problem with solar technology; it is a problem with the ownership structure of older installations. 

For a clear breakdown of how these arrangements differ from modern owned systems, our guide on leasing vs buying solar panels covers the practical implications in full. A conveyancing solicitor should check the title for any existing solar panel agreement before marketing begins.

How Solar Panels Are Assessed in Surveys and Mortgage Valuations

RICS-accredited surveyors do not automatically attribute a market premium to solar panels. Their assessment depends on ownership status, system condition, and the quality of documentation available at inspection. Understanding what surveyors look for prepares you to present a well-evidenced installation at sale.

Fixtures, Chattels, and What Surveyors Look For

Owned, permanently installed solar panels are typically treated as fixtures and included in the valuation of the secured asset. A surveyor completing a HomeBuyer Report or full structural survey will look for MCS certification, system condition, and evidence of any lease or third-party agreement attached to the installation. 

Panels in poor condition, with damaged components or missing documentation, may be recorded as a defect rather than an asset. For a standard owned installation with complete paperwork, this assessment is routine. 

The solar panel installation cost is treated as having been added to the property; the surveyor’s job is to confirm the system is in a condition that justifies that treatment.

Green Mortgages and EPC-Linked Lending

Several UK lenders now offer preferential mortgage rates for properties rated EPC C or above. Where a solar installation has pushed a home from EPC D to C, this may widen the buyer’s mortgage options and support a stronger offer. This is an evolving area of lending, and product availability changes. Buyers should check current offerings with a mortgage broker. 

For sellers, it is a further argument for designing an installation that achieves a genuine EPC band improvement rather than a marginal SAP score increase that leaves the rating unchanged.

Scotland Versus England and Wales, Does the Evidence Apply Equally?

The Swansea University and Zoopla study used England and Wales data. Scotland operates under a different pre-sale framework. Under the Housing (Scotland) Act 2006, sellers are required to produce a Home Report before marketing, which includes a single survey, an energy report, and a property questionnaire. The energy report uses SAP methodology, so a solar installation that improves the SAP score will be documented in the Home Report and surfaced to buyers automatically. 

In England and Wales, there is no mandatory pre-sale energy disclosure of equivalent scope, meaning solar’s EPC benefit is less systematically visible to buyers unless the agent or seller highlights it. This structural difference does not mean solar adds less value in Scotland. It does mean the specific uplift figures from the Swansea study are drawn from a different legal context, and Scottish homeowners should treat them as directionally useful rather than directly transferable.

How Upvolt Designs Installations That Protect and Enhance Property Value

MCS-Certified Installations With Full Documentation

The documentation that surveyors, solicitors, and mortgage lenders expect to see at a property sale is the same documentation that a properly run solar installation produces at the point of commissioning. Upvolt’s MCS-certified operating companies provide the certification records, installation documentation, and performance data required for SEG registration and expected during conveyancing. 

A fully documented installation removes the uncertainty that can cause delays or renegotiation at sale. For residential solar panels installed through Upvolt, that paperwork is standard practice, not an optional extra.

System Design Built Around Your Home’s Energy Profile

Upvolt sizes and positions systems based on the home’s actual consumption patterns, roof orientation, and shading conditions. A well-designed solar PV system produces better EPC outcomes and more credible generation estimates, both of which matter to buyers and their advisers. 

In our experience, systems designed around real usage data rather than standard assumptions consistently achieve stronger EPC band improvements. The return on investment case for solar extends beyond energy bill savings. 

For a detailed breakdown of how the numbers typically stack up, our take on solar panel return on investment covers payback periods, self-consumption rates, and the financial variables that affect them.

Let’s Recap

UK research, including the Swansea University and Zoopla study covering roughly five million property transactions, consistently shows that owned solar panels increase property values by an average of 6.1%–7.1%. The EPC improvement solar drives adds a further uplift too: moving from band D to C is linked to stronger buyer demand, better search visibility, and increasingly, better mortgage access.

Whether you actually see that uplift depends on a few things the headline figure doesn’t capture:

• Ownership matters most. Owned systems add value. Leased panels from historic FiT rent-a-roof schemes carry conveyancing risk that can deter lenders and buyers.
• Documentation is the baseline. MCS certification and full paperwork are what surveyors and solicitors expect to see.
• EPC band shapes perception. It affects both buyer interest and mortgage accessibility.
• Leased arrangements are the biggest risk. Investigate any historic rent-a-roof lease before marketing a property.

No research finding guarantees an uplift in any individual sale, estate agents exercise discretion and surveyors apply their own judgement. The strongest position is a well-designed, fully certified installation with a clear, unencumbered title. That leaves buyers, surveyors, and lenders nothing to question.

As lenders roll out more EPC-linked mortgage products and buyers filter searches by energy efficiency, this connection is only likely to strengthen. Installing now means positioning your property for a market that’s already starting to reward energy performance as a measurable, financeable asset.

About Upvolt

Upvolt is a residential and commercial solar installer operating across southern England, designing and installing systems through its MCS-certified operating companies. The value of a solar installation at resale depends directly on the quality, certification, and documentation of the work. That is not an incidental detail; it is the difference between an installation that a surveyor treats as an asset and one that raises questions in a HomeBuyer Report.

Upvolt assesses each property individually, designing systems around roof orientation, shading, energy consumption patterns, and the homeowner’s specific goals. For homeowners who are thinking about both energy savings and the long-term effect on their property’s value, that design process matters. A system that achieves a genuine EPC band improvement, with full certification paperwork in place, is a stronger asset than one installed without reference to the home’s energy profile. Upvolt serves homeowners across southern England and the Home Counties.

If you want to know what a system sized for your energy usage would generate, save, and cost, including what it would mean for your property’s EPC rating and its value at sale, Upvolt can give you that picture before you commit to anything. Get a free, no-obligation quote.

FAQ

How Much Do Solar Panels Increase Property Value in the UK?

Research from Swansea University, using matched data from approximately five million UK property transactions, found that homes with solar panels sold for 6.1%, 7.1% more on average than comparable homes without them. This is a population average across a range of property types, locations, and system sizes, not a guaranteed outcome for any individual property. The actual uplift depends on factors including the EPC band the installation achieves, the condition and documentation of the system, and the local buyer market. Properties that achieve an EPC band improvement from D to C or above through solar see a compounding effect on buyer demand and mortgage accessibility.

Do Leased Solar Panels Affect a House Sale?

Solar panels installed under historic FiT rent-a-roof lease schemes can complicate a property sale, because the lease typically attaches to the property title and transfers to the buyer. Some mortgage lenders will decline to lend where the lease terms are not acceptable to them, and buyers may request the lease is resolved before exchange. This applies only to panels installed under older leasing arrangements. Solar panels owned outright by the homeowner do not carry this risk. A conveyancing solicitor should check the title for any existing solar panel agreement before marketing begins.

Do Solar Panels Make a House Easier or Harder to Sell?

Owned solar panels in good condition, with full documentation, typically make a property more attractive to buyers who actively search for energy-efficient homes, particularly in the 25 to 45 age group where EPC rating is an increasingly common search filter. A poorly documented or uncertified installation may not generate the same positive response and can slow conveyancing if queries arise. The speed-of-sale benefit is strongest where the installation is professionally certified, clearly presented in the listing, and accompanied by evidence of ongoing performance. Kerb appeal and visual presentation also play a role; panels installed neatly on a well-maintained roof are received more positively than older, visually obtrusive arrays.

What EPC Rating Do Solar Panels Give a House?

Solar panels improve a home’s SAP score, which is the calculation behind an EPC rating, but they do not guarantee a specific band. The improvement depends on the size of the solar PV system, the home’s existing energy profile, and how the assessment is conducted. A well-sized installation on a home that is already reasonably efficient may be sufficient to move it from EPC D to C, the threshold that Rightmove research associates with measurable increases in buyer demand and that some lenders treat as a condition for their best mortgage rates. Homes with lower baseline SAP scores may see a larger improvement in rating from the same system size.

Does MCS Certification Matter When Selling a Home With Solar Panels?

MCS certification matters for two practical reasons at the point of sale. First, it is required for the system to have been registered for SEG payments, which buyers may expect to inherit as part of the property. Second, surveyors and solicitors look for evidence that the installation was carried out to recognised standards, and MCS certification is the accepted baseline. An installation without certification may be flagged in a home buyer survey or require additional evidence from a mortgage lender before proceeding. Certification belongs to the specific MCS-accredited operating company that carried out the work, not to the installer’s brand name.

Alex Lomax

CEO & Co-Founder

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