Do you need planning permission for solar panels in Surrey? For most houses the answer is no. Roof-mounted solar on a house in England is permitted development, and the rules as amended from 27 August 2026 draw the conservation-area line more narrowly than many people assume. Surrey does have a lot of designated land — the Surrey Hills National Landscape alone covers around a quarter of the county — so the exceptions deserve a proper reading before anyone asks for a quote. This post is the county-wide rulebook; our solar panels Surrey page covers what an installation itself involves.
The short answer: usually no
The rule is Schedule 2, Part 14, Class A of the Town and Country Planning (General Permitted Development) (England) Order 2015, as amended by S.I. 2026/896, in force from 27 August 2026. Under Class A, solar equipment on a house is permitted development — no planning application — subject to conditions on how it is fitted.
Five things can change the picture: a conservation area, the Surrey Hills National Landscape, a flat roof, a listed building and an Article 4 Direction. Only two of them remove the right outright: a listed building, where Class A does not apply at all, and an Article 4 Direction that names solar. The other three add a condition or a step, most often the flat-roof prior-approval determination, rather than removing the right.
The pitched-roof conditions
For a roof-slope array the Order attaches four conditions. The panels must not protrude more than 0.2 m from the roof slope. They must not sit higher than the highest part of the roof, excluding chimneys. They must be sited so as to minimise the effect on the appearance of the building. And they must be removed when no longer needed.
The 0.2 m figure is a protrusion limit and nothing more: it governs how far the panels stand off the slope. It says nothing about which way the slope faces or whether the array can be seen from the road, and it is not a conservation-area test. Wall-mounted panels have their own figures — 0.2 m where the wall abuts a highway, 0.4 m otherwise — but this post is about roofs.
Flat roofs: 0.6 m and the prior-approval determination
On a flat roof the equipment must not sit more than 0.6 m above the highest part of the roof. Outside designated land, that is the only additional condition.
On article 2(3) land — the Order’s label for conservation areas, National Landscapes (the AONBs), National Parks, the Broads and World Heritage Sites — a flat-roof array needs an application to the council for a determination on whether prior approval of its appearance is required, and the application goes in before work starts.
For Surrey householders the two categories of article 2(3) land that come up are conservation areas and the Surrey Hills National Landscape, so we take them in turn.
Conservation areas: what the exclusion actually covers
This is where most of the folklore lives. Under Class A as amended, the exclusion for conservation areas (and World Heritage Sites) applies only to equipment installed on a wall, balcony or roof enclosure which fronts a highway. Roof slopes are not restricted, and the clause draws no distinction between a slope that faces the street and one that faces the garden.
You may have read, or been told, that a front slope in a conservation area is off limits without an application. That is not what the current wording says. What a conservation area removes is the right to fix panels to a highway-facing wall, balcony or roof enclosure; the roof slope keeps its Class A rights, subject to the ordinary conditions above.
Two things do change inside a conservation area. A flat-roof array needs the prior-approval determination, because a conservation area is article 2(3) land. And an Article 4 Direction, covered below, can alter the position for the streets it names. Our post on Croydon’s conservation-area rules works through the same clause for a London borough; the Order is the same, so the reading is the same.
The Surrey Hills National Landscape
The Surrey Hills National Landscape — the county’s Area of Outstanding Natural Beauty — covers 422 km², around a quarter of Surrey. A National Landscape is article 2(3) land, so for the flat-roof rule it is treated the same way as a conservation area: an array on a flat roof needs the prior-approval determination before work starts. A roof-slope array stays permitted development under the ordinary Class A conditions, and the designation does not on its own mean an application.
Where a home inside the National Landscape is also in a conservation area, the two designations overlap rather than add: roof slopes permitted, flat roofs needing the determination, and any Article 4 Direction read on its own terms. For a worked example of how the designations stack in one town, see our post on Dorking, Article 4 and the Surrey Hills.
Green belt is a different designation again. Approximately 89% of Guildford borough is green belt, on the council’s Green Belt and Countryside Topic Paper of December 2017, and green belt is not itself a solar restriction for a householder.
Listed buildings: the clear exception
Class A does not apply to a listed building, or to a building within its curtilage. Panels on a listed house, or on an outbuilding within its curtilage, need listed building consent, and the conversation starts with the council rather than with an installer. It is the clearest yes in the whole subject. If a survey shows a listed building, we say so and leave the next step with you and the council.
Article 4 Directions: the one thing that removes roof rights street by street
An Article 4 Direction is the one mechanism that can remove roof-slope rights on specific streets. Guildford Borough Council, for instance, states that Article 4 directions add extra planning restrictions, and publishes conservation-area character appraisals for 13 areas, including Onslow Village, St Catherine’s, Charlotteville & Warren Road and the Town Centre.
Two points of detail matter. First, a direction that removes roof-alteration rights does not automatically remove the separate right to install solar; read the direction itself, not a summary of it, to see whether solar is named. Second, a direction applies to the streets it names, so being in a conservation area that has one does not by itself mean your house is covered. Check your own council’s conservation-area and Article 4 pages for the equivalent documents; the appraisal, and the direction attached to it, is where the answer sits.
Panels in the garden: Class B
Stand-alone panels — a ground-mounted array in the garden — are not Class A at all. They fall under Class B, with their own limits: height limits of 1 to 4 m, and prior-approval requirements in conservation areas and certain other sites under the 2026 Order. Because the limits depend on where the array sits, we do not summarise them further here. If a ground array is the only option for your plot, the Class B conditions need reading in full against your own situation before anyone measures up.
What to check before you ask for a quote
Three checks, in order. First, your council’s conservation-area pages and its Article 4 pages: Guildford’s include the 13 character appraisals mentioned above, and if your street appears in a direction, read its schedule for solar. Second, whether the house is listed, or sits within the curtilage of one that is. Third, ask the installer to screen designations at the survey. We do: if the survey shows a conservation area, a flat roof inside the Surrey Hills, a listed building or an Article 4 street, we flag it before a quote is written, so the council conversation happens first. We do not make planning or prior-approval applications on your behalf, and we would rather tell you that at the survey than leave you to find out later.
Once the planning position is clear, the rest is the ordinary survey: orientation, pitch, shading, generation and cost. Our solar panels Guildford page is the starting point for homes in and around Guildford, the solar panel installation cost page explains how a quote is built up and why a real figure only comes from a survey of the actual roof, and the Surrey page sets out what an installation in Surrey involves. To book a survey anywhere across Surrey, use the contact page or call 0204 547 1892.
For a town inside a National Park, the same Order read for Petersfield — roof slopes keep their rights, flat roofs need the prior-approval step — is in solar panels inside the South Downs National Park.
Sources: legislation.gov.uk, Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2 Part 14 Classes A and B, as amended by S.I. 2026/896, in force 27 August 2026; Guildford Borough Council, conservation areas and Article 4 directions pages and conservation-area character appraisals; Guildford Borough Council, Green Belt and Countryside Topic Paper, December 2017; Surrey Hills National Landscape.