This site is an independent guide to solar panels for landlords, operated by SEO Dons Ltd. It is not an installer, and enquiries sent through its forms are read by SEO Dons Ltd and answered by email. It is written for landlords, not homeowners or big commercial roofs: private buy-to-let investors, HMO operators and limited-company portfolio holders weighing solar on let property, including those aiming for the proposed EPC band C standard without spending on the wrong measures. That focus is deliberate. Solar for a rental property is a genuinely different problem from solar for an owner-occupied home, and the standard homeowner pitch does not fit it.
Why this guide is only about landlords
The standard solar sales pitch is "cut your energy bills". For most landlords that pitch is simply wrong, because in most lets the tenant pays the electricity, not the landlord. This is the split-incentive problem, you pay for the panels, the tenant gets the lower bill, and it is the single biggest reason landlords are nervous about solar. The homeowner pitch rarely addresses it honestly. The one question that actually decides the business case is who pays the electricity bill. In a standard single let where the tenant pays, the returns that accrue to the landlord are the EPC band uplift toward the proposed band C standard (proposed for 1 October 2030), higher and more defensible rent, lower void periods, Smart Export Guarantee income registered in the landlord's name, and the lift in resale and refinance value. In a bills-inclusive HMO where the landlord pays the bill, the maths flips and the system is sized for self-consumption and real cash returns. Sizing the system to who pays the bill, not to a homeowner's usage profile, is the difference between a sensible investment and an over-priced one.
Whole-house EPC planning, not just panels
Solar on its own does not move the proposed fabric-based EPC as far as insulation does. That is exactly why panels should not be bought in isolation by a landlord. The sensible approach is to model the least-cost route to band C for each property: the cheapest combination of fabric measures and solar that clears the band inside the proposed £10,000-per-property cost cap, sequenced sensibly. For many D-rated properties that is a few hundred pounds of loft or cavity insulation plus a 3 to 4 kW array, with the solar doing the part that also generates income and survives future changes to how the EPC is scored. On harder stock with expensive solid walls, costly wall work can often be avoided where solar plus loft insulation clears the band more cheaply.
Checking an installer’s credentials
Before appointing any installer, check that they are MCS-certified, which is the certification the property needs to be eligible for the Smart Export Guarantee and the Boiler Upgrade Scheme. Also look for the relevant electrical standards (NICEIC or NAPIT), membership of the Renewable Energy Consumer Code (RECC) for consumer protection, and a TrustMark licence under the government-endorsed quality scheme. Every certification can be checked against its issuing body, for example MCS at mcscertified.com, rather than taken on trust. This site is not an installer and holds none of these accreditations. Ask any installer whether they are tied to a single panel manufacturer, and who stands behind the workmanship warranty if the installer ceases trading.
Tax-aware, consent-aware, and honest about exemptions
Two things the homeowner pitch routinely misses for landlords. First, tax: if your portfolio is held in a limited company, solar is qualifying plant and machinery and capital allowances can return a meaningful share of the cost, whereas personally-held lets get no such relief after the April 2025 abolition of the furnished holiday let regime. Your accountant should confirm the position. Second, consent: leasehold flats and shared-roof properties need freeholder or managing-agent agreement, and solar is one of the improvements government explicitly cites as needing third-party consent. Handle that conversation in writing and keep the trail, so that if consent is refused there is a clean evidence pack to register a five-year third-party-consent exemption on the PRS Exemptions Register. Exemptions are a genuine backstop for unimprovable stock, not a way to dodge the standard.
How to tell a good installer from a poor one
A good installer gives a free desk-based feasibility from your meter data and roof details before anyone visits, quotes a fixed price, and will walk away from a project that does not stack up rather than talk you into it. For portfolio landlords, a programmed roll-out spreads capex across tax years and avoids the installer bottleneck that is likely to build if the proposed 2030 date holds. The aim of this guide is the same: the truth about the split incentive, not a system that does not fit your tenancy. That is the whole reason this guide exists.