The Sun Does Not Come with the House: Rooftop Solar Leases and the Checks Before Exchange

Solar panels have become a familiar sight on UK roofs, and their presence is no longer remarkable in itself. What remains remarkable is how often a buyer assumes that the panels fixed to the roof will simply pass with the house. In some cases they will. In others, the roof has been let to a third party, the panels belong to that third party, and the seller has little or no power to transfer them. The distinction matters long before completion. It affects what is being sold, what a lender will accept, who must repair the roof and what happens when the buyer later comes to sell.

First, Establish What Is Actually on the Roof

The starting point is not the make of the panels or the expected saving on electricity. It is ownership. An owned installation is usually treated as part of the property. The seller can transfer it with the house, subject to the usual checks on planning, building regulations and warranties. A leased installation is different. The panels may be owned by a specialist company, with the homeowner granting a lease of the roof space or a contractual right of access in return for the installation, a rental payment or a power purchase arrangement.

A buyer's solicitor will therefore ask a simple but important question: is the installation owned by the seller, leased from a third party, or subject to some other arrangement such as a shared ownership or community scheme? The answer should be supported by documents, not by an estate agent's description. If the seller cannot produce the lease, the warranty pack or the installer's certification, that is a warning sign rather than a minor administrative gap.

The Lease Behind the Panels

Where a third party owns the equipment, the lease or agreement governing the roof space needs to be read in full. The term may be long, and the rent may be nominal or escalating. More importantly, the lease may require the seller to obtain the landlord's consent before selling, or it may permit assignment only to a buyer who meets certain conditions. Some arrangements include a break clause; others do not. Some place the obligation to maintain and insure the roof on the homeowner; others allocate responsibility differently.

Access rights deserve particular attention. If the panels need repair, the third party may have a right to enter the property, erect scaffolding or remove tiles. That right may survive a sale and may bind a future owner. A buyer should understand not only what the lease says today but what it will require of them in practice. A roof that generates electricity can also generate obligations.

If the lease is for more than seven years, it may need to be registered at HM Land Registry. A buyer's solicitor should check the title. A short contractual arrangement may not appear on the register at all, which is why the seller's disclosure and the documents provided in the pre-contract pack are so important. The Property Information Form used in residential sales asks about solar panels, but a tick-box answer is no substitute for the underlying paperwork.

Planning, Building Regulations and Certification

For an owned installation, the usual compliance questions apply. Rooftop solar is often permitted development, but not always. Flats, listed buildings, conservation areas and properties in other protected locations can require permission. Building regulations may also apply to the structural and electrical work. An MCS certificate is commonly provided for small-scale renewable installations and is useful evidence of the specification and commissioning, but it is not a substitute for planning or building control approval where those are needed.

For a leased installation, the same questions arise but the responsibility may sit elsewhere. The buyer should ask who obtained the permissions, who holds the certificates and whether those documents can be transferred. If the installer has ceased trading, the practical value of a workmanship warranty may be limited. Manufacturer warranties for panels and inverters may be assignable, but assignability should be checked rather than assumed. A warranty that cannot be transferred to the buyer is of little comfort after completion.

Lender Consent and Insurance

Mortgage lenders are cautious about arrangements that split ownership of the property from ownership of equipment fixed to it. Some will accept a solar lease with a deed of consent; others will not. A seller who has not told their lender about the installation may find that the sale is delayed at exactly the wrong moment. A buyer should speak to their lender or broker early, particularly if the lease is long or includes significant access rights.

Insurance also needs attention. The buildings policy should be checked to confirm whether the panels are covered and whether the third party's interest needs to be noted. If the roof is damaged, the question of who pays to remove and refit the panels can become expensive. The lease may answer that question, but the answer may not favour the homeowner. Repair obligations should be read alongside the insurance position, not in isolation.

The Resale Trap

The central risk is not that solar panels are undesirable. It is that a future buyer may inherit an arrangement they did not expect. A lease that was acceptable to the original homeowner may be unattractive to a buyer whose lender objects, whose solicitor raises enquiries or who simply does not want a third party with rights over the roof. If the lease requires the seller to remove the panels at the end of the term, the cost may fall on whoever owns the property at that time. If the lease cannot be assigned, the seller may be left paying for equipment that no longer benefits them.

In 2026, a buyer's solicitor is likely to ask for the lease, the assignment provisions, the consent requirements, the maintenance records and evidence of insurance. A seller who assembles that pack before marketing the property will reduce the risk of a late collapse. A buyer who reviews it before exchange will understand what they are taking on. The roof may earn its keep, but only if the terms are clear before the house changes hands.