Do you need planning permission for solar panels in North London? For most houses, no. The national rule is the same in every borough, and Waltham Forest Council says outright that solar PV panels can often be installed on conservation-area roofs, including those fronting a highway, without planning permission where they meet the national conditions. The exceptions here are local and specific: a handful of estates in Haringey, Brent and Barnet where an Article 4 direction removes the solar right, listed homes, flat roofs in conservation areas and blocks of flats. This guide covers the seven councils of our solar panels North London area: Barnet, Harrow, Brent, Haringey, Enfield, Waltham Forest and Havering.
The short answer: permitted development, with exceptions
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 and in force from 27 August 2026. Under Class A, solar equipment on a house is permitted development, which means no planning application, as long as it meets the conditions below. The Order reads the same in Edgware, Wood Green and Romford. What changes from street to street is the designations, and those are set by each council.
Five things can change the picture: a conservation area, a flat roof on designated land, panels in the garden rather than on the roof, a listed building and an Article 4 direction. Only two of them can remove the right outright: a listed building, which sits outside Class A altogether, and an Article 4 direction that covers solar. North London has more of the second than most areas we cover, which is why the borough sections below matter.
The conditions for a pitched roof
For a roof-slope array on a house, in any of the seven boroughs, the Order sets four conditions. The panels must not protrude more than 0.2 m beyond the roof slope. They must not sit higher than the highest part of the roof, excluding chimneys. They must be sited to minimise the effect on the building’s appearance. And they must be removed when no longer needed. Wall-mounted equipment has its own figures: 0.2 m where the wall abuts a highway, 0.4 m otherwise.
How many homes that covers varies sharply across the region. Adding the 2021 Census shares for detached, semi-detached and terraced homes gives 76.6% of households in Havering, 65.3% in Harrow, 61.2% in Enfield, 55.2% in Waltham Forest, 52.5% in Barnet and 43.2% in Brent (our arithmetic on the ONS figures). Havering is the semi-detached end of London, with 41.2% of its households in semis, the second-highest share of London’s 33 local authorities. Outside the exceptions below, a Romford semi whose best slope faces the street is judged on the same four conditions as one whose best slope faces the garden.
Conservation areas across the seven boroughs
Every borough here has them. Barnet has 16 conservation areas, Harrow 30, eight of them on Harrow on the Hill, Brent 22, Enfield 22 and Havering 11. Haringey’s definitive list names 28 and Waltham Forest’s page lists 15 (our counts from each council’s list).
Living in one does not, on its own, stop you fitting roof-mounted solar. Under Class A as amended, the conservation-area exclusion applies only to equipment installed on a wall, balcony or roof enclosure which fronts a highway. Roof slopes are not restricted by that clause, front ones included. Two councils here put their own position in writing. Waltham Forest says panels can often go on conservation-area roofs, including those fronting a highway, without planning permission, and that permission is generally required for equipment on a wall fronting a highway. Haringey’s guidance says micro-generation such as solar panels in conservation areas will be accommodated where possible, in ways that do not harm the historic environment, ideally in discreet locations. Where a borough has gone further, it has done it through an Article 4 direction.
Article 4 directions, borough by borough
An Article 4 direction lets a council remove permitted development rights in a defined area, and it is the one mechanism that can take roof-slope rights away street by street. Two readings matter. A direction that removes roof-alteration rights does not automatically remove the separate right to install solar, and a direction applies only to the land it names. These are the directions we have read or checked against the council’s own records.
Haringey. The council uses Article 4 directions in four conservation areas: Noel Park, Peabody Cottages, Rookfield Estate and Tower Gardens. The Noel Park, Tower Gardens and Peabody Cottages directions, made on 16 December 2019 and in force since 21 December 2020, withdraw the Part 14 Class A solar right on the street elevations of properties in each area. Noel Park is a planned estate of about 2,000 terraced homes built from about 1881 to 1913, and its appraisal says solar panels on facades or roof slopes visible from the street are not appropriate. Tower Gardens, the first phase of the London County Council’s White Hart Lane Estate, has an appraisal saying discreetly located installations on hidden elevations or rear roof slopes may be appropriate. Rookfield Estate’s 1978 direction covers extensions, porches, hard standings, boundaries and exterior painting without naming solar equipment, and Haringey opted not to confirm its replacement, so the 1978 direction stays in effect. Our guide to Tottenham, Tower Gardens and battery planning goes street by street.
Brent. Brent says all of its residential conservation areas are covered by Article 4 directions. The Barn Hill and Wembley High Street directions, in force from 18 December 2021, withdraw the Part 14 Class A solar right within their mapped areas “with exception of rear roof slopes”, so a rear-slope array keeps its right there. The Barn Hill design guide asks for flush, in-roof panels and says they should not be sited on a front or side elevation or roof slope, or be visible from the highway. The 1993 Sudbury Court direction covers window designs on street frontages, roofing materials and roof lights, and does not name solar.
Barnet. Barnet’s Article 4 records list the solar class among the rights removed in the Finchley Garden Village, Moss Hall Crescent and Hendon The Burroughs conservation areas, and do not list it for Finchley Church End, Glenhill Close, Mill Hill, Monken Hadley, Totteridge or Wood Street. The Watling Estate, in Burnt Oak, has no direction recorded. Barnet says it translated old direction classes into their modern counterparts, and most of these directions predate solar permitted development, so read the direction itself before you rely on either answer. Our Hendon planning guide covers The Burroughs in detail.
Harrow. Five of the eight conservation areas on Harrow on the Hill carry Article 4 directions, and so does the Canons Park Estate; Edgware High Street has none. Harrow’s pages give only yes or no for each area, so we have not been able to confirm which directions touch solar. If you live in one of them, ask the council before work starts.
Enfield. Directions made in 2006, 2008 and 2009 cover parts of many of Enfield’s 22 conservation areas, Bush Hill Park among them, and Enfield Town has its own Article 4(1) direction, confirmed in 2017 and in force since 8 January 2018. The directions we read contain no solar wording. Church Street and Fore Street in Edmonton have none; the council’s 2016 management proposals judged one premature.
Waltham Forest. Nine of the borough’s conservation areas carry Article 4 directions, including Walthamstow Village, Orford Road and Chingford Green. The Orford Road and Chingford Green directions, confirmed on 25 January 2005, withdraw rights such as alterations to a roof slope fronting a relevant location, and the Walthamstow Village direction covers enlargements and outbuildings; none of the three names solar equipment.
Havering. The Gidea Park direction, made on 31 December 2015 and confirmed on 24 June 2016, replaced five earlier directions and refers to development in Parts 1 and 2 of Schedule 2 of the Order, not Part 14.
Flat roofs, garden panels and the green belt
On a flat roof, the equipment must not sit more than 0.6 m above the highest part of the roof. On article 2(3) land, which under the Order includes conservation areas, National Landscapes, National Parks, the Broads and World Heritage Sites, a flat-roof array also needs an application to the council for a determination on whether prior approval of its appearance is required, made before work starts. A flat-roofed rear extension on a house in the Walthamstow Village or Muswell Hill conservation area therefore means an application to Waltham Forest or Haringey before the panels go on. It is a step, not a refusal.
Stand-alone panels in the garden fall under Class B. Under the 2026 Order, a prior-approval determination is needed first where any part of the array would sit in a conservation area and nearer to a highway that bounds the curtilage than the part of the house nearest that highway, or on article 2(3) land within 5 metres of the curtilage boundary. In a conservation area such as Gidea Park or Chingford Green, where the array sits relative to the road is what decides whether that step applies. Class B has further limits of its own, so read it against your plot.
Green belt is not article 2(3) land, and it adds no conditions to roof solar on a house. That is worth knowing in the north of the region: 46.4% of the Chipping Barnet constituency is green belt, against 27.5% of Barnet borough and 21.6% of Harrow (MHCLG, 31 March 2025).
Listed buildings
Listed buildings are the clear exception. Class A does not permit solar on a house, or on a building within its curtilage, if the house is listed, so the permitted development route is closed. Separately, Historic England says consent is required for any type of PV installation on a listed building. The region’s listed buildings range from the Grade II* William Morris Gallery in Walthamstow to the Barclays branch at 20 The Town, Enfield, listed at Grade II in 2023 as the first bank in the world fitted with a cash machine; the Chingford Green conservation area alone contains seven statutory listed buildings. If your house is listed, the conversation starts with the council, not with an installer.
Flats, and homes you rent
Flats are a bigger share of the housing here than in most of the areas we cover. Purpose-built flats are 38.0% of households in Brent and 36.6% in Barnet, 98.2% in Wembley Park ward and 69.0% in Harrow’s Greenhill ward, while in Muswell Hill ward the largest group, 32.6%, live in part of a converted or shared house (Census 2021). Part 14 Class A has separate conditions for a block of flats, but the roof is usually not yours to alter without the freeholder’s consent, and roof space rarely divides neatly between leaseholders. UK Power Networks says the building owner’s permission is needed before solar or storage work begins on a multi-occupied building. If you rent, the decision sits with your landlord.
Building regulations, MCS and UK Power Networks
Planning is one of three sets of paperwork. The second is the Building Regulations: Historic England notes that all PV installations must comply with Parts A (structure), B (fire safety) and P (electrical safety), with the council’s Building Control notified, whichever of Barnet, Harrow, Brent, Haringey, Enfield, Waltham Forest or Havering that is. We are a NAPIT member (73495); NAPIT is a government-approved scheme for registering electrical installers, and it covers the electrical work in every installation. We are also MCS-certified for solar PV and battery storage, with certification held via NAPIT, and HIES Consumer Code members (HCE/A/1392). Smart Export Guarantee payments need an MCS certificate, which arrives with the electrical certification after the installation is registered.
The third is the electricity network. UK Power Networks runs it in all seven boroughs, but in two licence areas: on its own boundary data, 13 of our 14 town centres sit in its Eastern area and Walthamstow is in its London area, with Hendon, Tottenham and Chingford close to the line, and central Wembley is also close to SSEN’s Southern England area. The Distributor ID on your bill says which (10 for Eastern England, 12 for London). Under the Energy Networks Association’s G98 rule, a system up to 16 A per phase, 3.68 kW, is notified before commissioning or no later than 28 days after it. Anything larger needs a G99 application approved before the work starts, and a 4 kW inverter, at 17.39 A, is just over that line. UK Power Networks says it automatically approves an application where the maximum export, after any export limitation, is under 5 kW, and that if no supply upgrade is needed there is nothing to pay it. The installer contacts UK Power Networks on your behalf.
Once planning is clear: the roof matters more than the borough
PVGIS 5.3, the European Commission’s solar calculator, gives about 3,965 kWh a year from a 4 kWp array facing due south at 35° in Harrow. Across our 14 North London town pages the figure runs from about 3,938 kWh in Edgware to about 4,055 kWh in Romford, a spread of about 117 kWh (our arithmetic on PVGIS-SARAH3 2005–2023 runs, 14% system losses, 15 October 2026). If a direction pushes the array onto a rear slope that faces east or west, it makes less, and shading changes the answer more than the borough does. Our page on solar panel cost in North London sets out how an installation is priced, with the national figures on solar panel installation cost; solar panel grants in North London covers the income-linked schemes, which are a separate question from planning; and battery storage explains how a battery is sized alongside the panels.
Where to check with your council
| Council | Conservation areas | Article 4 position on solar | Where to check |
|---|---|---|---|
| London Borough of Barnet | 16 | Records list the solar class in Finchley Garden Village, Moss Hall Crescent and Hendon The Burroughs; not in Finchley Church End, Mill Hill, Monken Hadley, Totteridge or Wood Street | Barnet’s Article 4 records, planning.data.gov.uk |
| London Borough of Harrow | 30, eight on Harrow on the Hill | Five Harrow on the Hill areas and Canons Park Estate carry directions; solar coverage not confirmed | Harrow Council, Conservation areas and Article 4 (harrow.gov.uk) |
| London Borough of Brent | 22 | All residential areas have directions; Barn Hill and Wembley High Street remove solar except on rear roof slopes | Listed buildings and conservation areas |
| London Borough of Haringey | 28 (our count) | Noel Park, Tower Gardens and Peabody Cottages remove solar on street elevations; Rookfield’s 1978 direction does not name solar | Development in conservation areas |
| London Borough of Enfield | 22 | 2006, 2008, 2009 and Enfield Town (2018) directions; no solar wording in those we read | Article 4 directions in conservation areas |
| London Borough of Waltham Forest | 15 (our count) | Nine directions; Orford Road, Chingford Green and Walthamstow Village name no solar; council says roof solar can often go ahead | Conservation areas and listed buildings |
| London Borough of Havering | 11 | Gidea Park direction refers to Parts 1 and 2, not Part 14 | Article 4 Direction: Gidea Park |
What to check before you ask for a quote
Check three things, in order. First, the designation: whether your house is in a conservation area, listed, or within the curtilage of a listed building. Second, the Article 4 position if you live in Noel Park, Tower Gardens, Peabody Cottages, Barn Hill, Wembley High Street, Finchley Garden Village, Moss Hall Crescent, Hendon The Burroughs or one of Harrow’s directed areas. Third, the roof: pitched, flat or garden, front or rear, because each sits under a different rule above. Our town pages for Harrow, Wood Green, Wembley, Walthamstow and Tottenham set out each area’s own designations.
Then ask the installer to screen designations at the survey. We do: a listed building, a flat roof in a conservation area, a highway-facing wall or balcony, or a property in one of those Article 4 areas gets flagged before a quote is written, so the conversation with the council happens first. We do not make planning or prior-approval applications on a customer’s behalf, and we would rather say so at the survey than leave you to find out later. For what a quote should itemise once the planning position is clear, see what is in a solar quote, line by line, and for the payback arithmetic, solar panel payback time.
Get a North London quote through our contact page, or call 0204 547 1892. For the same national rule applied to other councils, see our guides to planning permission for solar panels in Bedfordshire and in Surrey.
Sources: legislation.gov.uk, Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2 Part 14 Classes A and B and article 2(3), as amended by S.I. 2026/896, in force 27 August 2026; Historic England, Consents and Permissions for PV Systems; London Borough of Haringey, Development in conservation areas, Energy efficiency in conservation areas, List of conservation areas, the Noel Park, Tower Gardens and Peabody Cottages Article 4(1) directions (made 16 December 2019, confirmed 17 December 2020), the Rookfield Estate direction 1978, and the Noel Park and Tower Gardens appraisals; London Borough of Brent, Listed buildings and conservation areas, the Barn Hill and Wembley High Street Article 4(1) directions, the Sudbury Court direction 1993 and the Barn Hill design guide; planning.data.gov.uk, London Borough of Barnet conservation-area and article-4-direction-area records; London Borough of Harrow, Conservation areas and Article 4, and Stanmore and Edgware conservation areas; London Borough of Enfield, Conservation areas and Article 4 directions in conservation areas, and the Church Street and Fore Street management proposals (September 2016); London Borough of Waltham Forest, Conservation areas and listed buildings (last updated 29 September 2026), and the Orford Road, Chingford Green and Walthamstow Village Article 4 directions; London Borough of Havering, Article 4 Direction: Gidea Park, and the Romford Conservation Area Appraisal (July 2025); ONS Census 2021, TS044 Accommodation type (Nomis), boroughs and 2022 wards; MHCLG, Local authority green belt statistics for England 2024-25; Historic England, Enfield bank listing (10 April 2023); William Morris Gallery, About us; UK Power Networks, licence boundaries open data and Solar and storage: cost, time and what’s involved; Energy Networks Association, Find my network operator, and EREC G98 Issue 2 (10 March 2025); PVGIS 5.3 (European Commission Joint Research Centre), PVGIS-SARAH3 2005–2023, runs on 15 October 2026. Read 15 October 2026, as recorded in our claims tables.