Solar planning in St Helens: panels, conservation areas and permission
Solar panels in St Helens: the planning rules, the council's conservation areas and how to check an address.
St Helens Borough Council is the planning authority for St Helens among the towns we cover. Whether panels on a house there need the council’s permission comes down to two things: the national rules for England, and whether the house sits in one of the council’s conservation areas or is listed.
Solar planning in St Helens: the rules that apply
In England, panels on a house are normally permitted development under Part 14, Class A of the General Permitted Development Order 2015, as amended on 27 August 2026. On a pitched roof they may stand no more than 0.2 metres proud and no higher than the roof’s highest point; on a flat roof the array may rise no more than 0.6 metres above it; on a wall, 0.2 metres where it abuts a highway and 0.4 metres elsewhere. A listed house has no such rights, and in a conservation area nothing may go on a wall, balcony or roof enclosure that fronts a highway; a flat-roof array on that land needs the council’s prior approval of its appearance first.
Conservation areas in St Helens
St Helens has eight conservation areas. Extra controls are in place to manage or resist alterations that affect public views of the area, including the installation of UPVC windows and doors; Article 4 Directions cover High Street (Newton-le-Willows), Rainford, Rainhill and Vulcan Village.
The areas the council lists are:
- Earlestown
- George Street
- Newton-le-Willows
- Rainford
- Rainhill
- Victoria Square
- Vulcan Village
Checking an address: The council publishes an appraisal for each area and copies of its Article 4 Directions. Read it on St Helens Borough Council’s conservation-area page.
Each town we cover in St Helens has its own pages for solar panels in St Helens, with that town’s own PVGIS figures, network and conservation areas.
The network side
Planning is one form; the network operator is another. The towns here are on SP Manweb, and every system is notified to the operator under G98 or, for larger systems, G99. Our guide to the G99 application covers it, the Merseyside and the Wirral page sets out the networks town by town, and the UK-wide rules are in our guide to whether solar panels need planning permission.
A car charger has planning rules of its own, which change in England on 21 October 2026: EV charging in St Helens sets them out with the council’s plug-in car and public charger figures.
If your house is listed, in a conservation area, or has a flat roof, tell us on the first call. It changes the design and sometimes the order things happen in, but rarely whether solar works.