Croydon has 21 designated conservation areas, and the single most common reason we hear for not enquiring about solar is “we’re in one”. In most cases that reasoning is out of date. Here is what the rules say now, and where the genuine exceptions are.
The rule as it stands (amended 27 August 2026)
Roof-mounted solar on a house is permitted development in England — no planning application — subject to conditions: the panels must not project more than 200 mm beyond the roof slope, must not be higher than the highest part of the roof, and must be removed when no longer needed.
The conservation-area rule used to be read as a blanket restriction on street-facing roof slopes. It is narrower than that. Under Class A of Part 14 as amended by S.I. 2026/896, in force 27 August 2026, the conservation-area exclusion applies to equipment installed on a wall, balcony or roof enclosure which fronts a highway — not to roof slopes, front ones included. A flat-roof array on article 2(3) land, which includes conservation areas, needs an application to the council for a determination on whether prior approval of its appearance is required. Listed buildings, as ever, sit outside Class A and need consent.
Croydon’s real exception: Article 4 Directions
An Article 4 Direction lets a council remove permitted development rights in a defined area — and the detail matters, because a direction that removes roof-alteration rights does not automatically remove the separate right to install solar. We read Croydon’s own published appraisals on 27 September 2026. Here is what they actually say.
Chatsworth Road — solar is named. The direction took effect on 21 January 2016, and the development it makes subject to planning permission includes “All alterations to the roof of a dwelling house” and, explicitly, “The installation of solar PV or solar thermal equipment (solar panels)”. If your home is in this conservation area, assume an application.
The Waldrons — narrower than it looks. A direction took effect on the same date, but it applies to numbers 5-23 (inclusive) The Waldrons, and the rights it removes are the provision of hard surfaces within the curtilage and the erection or alteration of a gate, fence, wall or other means of enclosure. Solar is not in it. Separately, section 8.4.2 of the management plan says photovoltaic or solar thermal panels “on roofscapes visible from the road are not considered to be appropriate measures” — that is guidance the council will apply when it looks at a scheme, not a rule that removes your permitted development rights. In practice: a rear-slope array is straightforward; a street-facing one is a conversation with the conservation officer.
Kenley Aerodrome — no direction published. Its appraisal and management plan does not mention an Article 4 Direction, and neither does the council’s page for the area. We previously listed it here as one of three; on the published evidence that was wrong, and we have corrected it.
If you are unsure which applies to your street, the council’s conservation-area directory has a page per area with the appraisal attached — and the appraisal, not a summary, is where the schedule of removed rights lives.
The bigger Croydon question is usually the building, not the planning
Croydon is London’s most populous borough — 390,719 residents and 152,946 households at Census 2021 — and its housing is flat-heavy. About 41% of dwellings are flats, with semi-detached houses at 24%, terraced at 23% and detached at 12%. Owner-occupation stood at 54.7%.
For a house, once planning is settled the questions are the ordinary ones: orientation, pitch, shading, and what the roof will generate. For a flat, the first question is whether the roof is yours to use at all: a leaseholder generally needs the freeholder’s consent, and a shared roof rarely divides neatly. It is honest to say that for a good share of Croydon’s flats the answer is no, and we would rather say so at the survey than after a deposit.
What a Croydon roof is estimated to generate
Our solar panels Croydon page publishes a generation estimate for the town itself, run in the European Commission’s PVGIS 5.3 tool with the parameters shown, alongside the Energy Saving Trust’s national cost anchor — about £7,600 for a typical 4.5 kWp system (updated 27 August 2026) — and the VAT position: 0% on residential installs until 31 March 2027, 5% after. The savings calculator lets you run your own usage against that estimate before you talk to anyone.
Croydon is not starting from zero
The council has a formally approved Climate Action Plan 2030, following its July 2019 climate emergency declaration. Croydon Community Energy, the borough’s first renewable-energy co-operative, raised £120,000 in its 2025 community share offer to fund 711 solar panels across three community buildings. Two Croydon schools are among the 250 nationally getting rooftop solar under Great British Energy’s £100 million programme. The borough’s electricity is distributed by UK Power Networks, the operator that receives the G98 or G99 notification when a domestic system is connected — a step your installer handles, and one worth confirming was done.
The same clause, read for Surrey’s conservation areas and the Surrey Hills, is worked through in planning permission for solar panels in Surrey.
Sources: Croydon Council conservation-area directory — Chatsworth Road, The Waldrons and Kenley Aerodrome appraisal and management plans (read 27 September 2026); legislation.gov.uk, Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2 Part 14 Class A, as amended by S.I. 2026/896 in force 27 August 2026; ONS Census 2021, Croydon; Croydon Strategic Housing Market Assessment; Croydon Council, Sustainability in Croydon; Inside Croydon (13 August 2025; 20 November 2025); UK Power Networks; Energy Saving Trust (updated 27 August 2026); HMRC VAT Notice 708/6.