solar panels for commercial property in Brighton

Serving Brighton and the wider East Sussex area, including Hove, Worthing, Shoreham-by-Sea.

Brighton & Hove holds an unusual commercial property stock for the South East. A large share of the lettable space sits in Regency terraces, Victorian conversions and tightly built city-centre blocks, much of it inside conservation areas or close to listed neighbours. That stock carries a specific problem under the Minimum Energy Efficiency Standards. Since 1 April 2023 it has been unlawful to let a commercial building in England and Wales below an EPC E, and an EPC B by 2031 is now proposed for properties over 1,000 m² (subject to legislation — the earlier C-by-2027 step was scrapped). For owners and landlords in BN1, BN2 and BN3, the older the fabric, the harder the EPC, and the more a rooftop solar array earns its place on the asset.

MEES, EPC and the stranding risk on Brighton stock

The point of solar for a landlord is not the headline carbon saving. It is the EPC rating and the lettability that rating protects. A commercial array shifts the building’s modelled energy use and, with it, the certificate. On a marginal D or borderline E asset, that uplift is the difference between a building you can lawfully let and one that strands — empty, unmortgageable, and discounted on any sale.

Brighton sharpens this in two directions. The conversion stock around the city centre and the seafront is energy-hungry and frequently sits on lower bands. At the same time the larger, cleaner roofs that take solar most easily are out on the trading estates — Hollingbury Industrial Estate up the A23, the units around Moulsecoomb, and Portslade Industrial Estate to the west towards Shoreham. Those are the assets where a single decision protects a rent roll. Brighton & Hove City Council has committed to a 2030 net-zero target, ahead of the national line, so local procurement and planning sentiment increasingly favour generation on commercial roofs. For a landlord, that is tailwind, not obligation — the legal driver remains MEES.

We start every Brighton instruction by reading the EPC against the lease structure, because the right intervention depends on who pays the bills. The technical details of the regulation are set out in our MEES and EPC guide for commercial property, which is worth reading before you commission any works.

Conservation areas, listed buildings and Class J

This is where Brighton needs more care than most. A rooftop array on an unlisted Hollingbury or Portslade industrial unit is normally straightforward. A roof inside a conservation area, or on a building that is listed or adjoins a listed structure — common across the central BN1 grid and near the Royal Pavilion — is not.

Listed building consent is required where panels affect a listed structure, and that can apply even to a roof slope you would never think twice about elsewhere. Within conservation areas, councils scrutinise visibility from the street and the impact on the area’s character, particularly on front-facing slopes. The pragmatic answer is usually the rear or inner roof plane, flat roofs behind a parapet, or an array set back out of public sightlines. The 1 MW rooftop cap on permitted development was removed in December 2023, which helps the larger industrial roofs, but the route is Class J prior approval — you still notify the council and they have 56 days to respond. Conservation and listing constraints sit on top of that, not instead of it.

We handle this by surveying the roof, checking the designation, and telling you plainly which planes are usable before any cost is committed. On a constrained central building the answer is sometimes a smaller array on the hidden slopes; on a Hollingbury shed it is the full roof. Either way you get a real number, not an optimistic one. The planning and grid mechanics are covered in our planning and grid guide.

Who owns the roof, who keeps the return

The hardest question in commercial solar is rarely technical. It is the split incentive: under a full repairing and insuring lease the tenant pays the energy bills, so the landlord who funds the array does not obviously capture the saving. There are four clean ways through it, and the right one depends on the asset.

Owner-occupied. If you trade from the building — common among Brighton’s manufacturing and trade units in Portslade and Hollingbury — you keep the full benefit. You consume the generation, cut your bills, lift the EPC, and claim the tax relief. This is the simplest and strongest case.

Common-parts supply. For multi-let offices and the converted blocks around the city centre, the array feeds landlord-controlled supply — lifts, lighting, shared services — directly reducing your service-charge cost base and improving the building’s rating.

Tenant PPA or green lease. You fund and own the array and sell the power to the occupier at a rate below grid, under a power purchase agreement or a green-lease clause. The tenant saves, you earn a return, the asset improves, and a properly drafted clause aligns both parties on future works.

Sell the roof. Where you would rather not deploy capital, a third party funds the array for the roof space and the building still gains its EPC uplift.

Our split incentive guide works through the lease mechanics in detail, and our pages on office investment property and industrial and logistics property set out how each route plays for those asset classes.

Local cost, grid and a worked example

Budget on roughly £700–1,100 per kWp ex-VAT for a commercial rooftop system, with solar zero-rated for VAT. Payback typically lands in four to eight years, and the return is driven by self-consumption — power you use on site is worth far more than power you export, so the best assets are those with strong daytime load. Solar is a special-rate asset for capital allowances, attracting 100% relief through the Annual Investment Allowance up to £1m, and rooftop systems are exempt from business rates to 2035.

The grid is the constraint to plan around early. Any system above roughly 50 kW needs a G99 connection application to UK Power Networks, the distribution operator across Brighton. On the larger Hollingbury and Portslade roofs this is the item that sets the timeline, so we lodge it at the front of the project, not the end.

To make it concrete — and this is illustrative, not a quote — take a 180 kWp array on a Hollingbury commercial unit. At around 950 kWh per kWp a year it generates roughly 170,000 kWh, enough to cover a substantial slice of a trade or light-industrial load, lift the building off a marginal EPC band, and protect its lettability under MEES. In a city where conservation constraints make a clean, unconstrained roof genuinely scarce, that capacity is worth defending. The green premium is real on prime stock too: JLL has associated solar-credentialled prime offices with measurably higher rent and capital value, an effect our green premium and asset value guide examines.

Every Brighton building is different, and the conservation overlay means desk estimates are unreliable here. Start with our commercial solar cost page for the numbers, then request a free feasibility study and fixed-price quote so we can read your specific roof, designation and lease before anything is committed.