Why Solar Works in the New Forest
The Forest is a little less sunny than the Solent shore, but not by much. PVGIS, the European Commission’s solar model built on satellite records from 2005 to 2023, puts a 4 kW south-facing array at a 35° pitch in Lyndhurst at 4,272 kWh a year, and in Fordingbridge, on the western edge, at 4,178 kWh. On the coast at Hayling Island the same array models at 4,526 kWh, so the Forest gives up roughly 6–8% — far less than the difference between a south- and an east-facing roof.
Solar is already common here. Government figures record 6,541 solar PV installations in New Forest district at the end of 2024, up from 3,824 at the end of 2020 — a 71% rise. The district’s 75.4 MW includes farm and commercial systems as well as homes, so the average site is larger than a typical domestic roof.
What makes the Forest different is planning, not sunshine. The National Park boundary runs through the middle of the district, and the answer to “do I need permission?” starts with which side of it your home sits on.
Planning in the New Forest
Inside the National Park the New Forest National Park Authority is the planning authority; outside it, New Forest District Council is. Roof-mounted panels on a house are permitted development in both, within the 0.2 m projection and roof-height limits. National Park land is protected “article 2(3)” land, so a flat-roof array needs a prior approval application first, and listed buildings always need consent.
What a 4 kW System Is Worth in the New Forest
4 kW south-facing at 35° (PVGIS, EU Joint Research Centre). Values use the 26.32p/kWh price cap for Oct–Dec 2026 and 12p/kWh Outgoing Octopus export. Cost: DESNZ 2025/26 South East average of £1,859/kW for systems up to 4 kW. Your quote follows a survey.
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Solar Panel Costs & Savings in the New Forest
Put those together for the New Forest and an average 4 kW array — 4,272 kWh a year on a south-facing roof — costs about £7,436 and is worth £696 a year if you use 30% of its output at home, or £880 if a battery or daytime occupancy lifts that to 60%. That is a simple payback of roughly 8 to 11 years before any battery, and it moves with the price cap.
Those are averages across tens of thousands of installations, not a quote. Scaffold access, roof type, the number of panel strings and whether you add a battery all move the price, which is why every quote follows a survey. Solar panels and batteries installed in homes are zero-rated for VAT until 31 March 2027, and Smart Export Guarantee payments are only available on an MCS-certified installation.
Our Hampshire solar panel cost guide goes through system sizes and options in more detail.
Inside or Outside the National Park: Who Decides on Your Solar Panels
The New Forest National Park Authority is the planning authority for everything inside the Park. Its Local Plan names four defined villages — Ashurst, Brockenhurst, Lyndhurst and Sway — and parts of the parishes of Milford-on-Sea, Totton and Eling, New Milton, Hythe and Dibden, Lymington and Pennington, Wellow, Fordingbridge and Ringwood also lie within the boundary. Outside it, New Forest District Council decides. Because the line cuts through parishes, a town name is not enough: the Authority’s My Property Map shows which side of the boundary an address falls.
For a house, the national rules still do most of the work. Under Part 14 of the permitted development order, as amended on 27 August 2026, roof-mounted panels are permitted development if they project no more than 0.2 m from the roof slope and sit no higher than the highest part of the roof, and they must be sited, so far as practicable, to minimise their effect on the building’s appearance. That applies inside the Park as well as outside it.
Protected land changes three things. A flat-roof array on National Park or conservation-area land needs a prior approval application before work starts. In a conservation area, panels on a wall, balcony or roof enclosure fronting a highway are not permitted development — roof slopes are not restricted. And listed buildings, common in the Forest’s villages, fall outside permitted development altogether, so listed building consent comes first. Stand-alone ground-mounted panels have their own, tighter limits: check before planning one on protected land.
For the detail village by village, read our guide to solar panels in the New Forest National Park, and for the wider county picture see solar panels in Hampshire.
Thatch, Listed Cottages and Outbuildings
The Forest has more thatched and listed homes than most of Hampshire, and neither suits a standard array. Thatch cannot take roof-mounted panels, and a listed building needs listed building consent before anything is fixed to it. That does not rule solar out: a garage, barn or outbuilding roof with a clear southerly aspect can carry the array, with the cable run to the house designed at survey.
Where panels do go on a visible roof, the design choices matter more than usual: a tidy rectangular array, all-black panels and matching trims, or in-roof panels that sit flush with the tiles. They are also the choices that best meet the condition that panels be sited to minimise their effect on the building’s appearance.
New Forest Towns and Villages We Cover
Which planning authority covers each place — confirm your own address on the National Park Authority’s My Property Map.
How a the New Forest Installation Runs
Survey
We check roof pitch and direction, shading from trees, the roof covering, any listing, and which side of the National Park boundary the property sits on, and look at a year of your electricity use if you have it.
Design and fixed quote
You get a written design and a fixed price, with any prior approval, conservation-area or listed-building step flagged before you commit.
Network paperwork
SSEN is the distribution network operator here. Systems up to 16 amps per phase (3.68 kW on a single-phase supply) are notified under G98 after commissioning; anything larger — including many battery add-ons — needs a G99 application approved before installation.
Installation and testing
Scaffolding goes up first. The array, inverter and any battery are then fitted, the circuits are tested, and the system is commissioned before the scaffold comes down.
Handover
You receive the MCS certificate — needed to claim Smart Export Guarantee payments — with the commissioning records and warranty documents.
Solar Panel FAQs for the New Forest
Answers use sourced figures: PVGIS for output, DESNZ for costs and installation numbers, and the National Park Authority for the boundary.
Usually not for roof-mounted panels on a house. They are permitted development inside and outside the National Park if they project no more than 0.2 m and sit no higher than the highest part of the roof. A flat-roof array on National Park or conservation-area land needs a prior approval application first, listed buildings need consent, and in a conservation area panels on a wall fronting a highway are not permitted development.
Use the National Park Authority’s My Property Map. Ashurst, Brockenhurst, Lyndhurst and Sway are defined villages inside the Park, but the boundary also runs through the parishes of Milford-on-Sea, Totton and Eling, New Milton, Hythe and Dibden, Lymington and Pennington, Wellow, Fordingbridge and Ringwood, so the town name alone does not tell you.
New Forest District Council for the towns themselves. The parts of those parishes that lie inside the National Park come under the New Forest National Park Authority instead.
PVGIS models a 4 kW south-facing array at a 35° pitch at 4,272 kWh a year in Lyndhurst and 4,178 kWh in Fordingbridge — about 6–8% below the Solent coast, and a smaller gap than the one between a south- and an east-facing roof.
Government data on South East installations put the average at £1,859 per kW for systems up to 4 kW in 2025/26 — about £7,436 for a 4 kW array — and £1,721 per kW for 4–10 kW. Access, roof type and any battery move the price, so every quote follows a survey. Installation in a home is zero-rated for VAT until 31 March 2027.
Not on the thatch itself, and not on a listed building without listed building consent. A garage, barn or outbuilding roof with a clear southerly aspect is often the practical alternative.
The Department for Energy Security and Net Zero recorded 6,541 solar PV installations in New Forest district at the end of 2024, up from 3,824 at the end of 2020. The total includes farm and commercial systems as well as homes.
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Solar Panels Across the New Forest
Lyndhurst · Brockenhurst · Lymington · New Milton · Ringwood · Fordingbridge · Totton · Hythe · Hampshire