Planning and conservation in Widnes

The national limits

Solar on houses is governed by Part 14 of the General Permitted Development Order, amended on 27 August 2026. Within these limits there is nothing to apply for:

• On a pitched roof, the panels may stand no more than 0.2 m beyond the slope and may not rise above the highest part of the roof, leaving chimneys out of the reckoning.
• On a flat roof, no part of the array may be more than 0.6 m above the highest part of the roof.
• On a wall, panels may project no more than 0.2 m where the wall faces a road and 0.4 m elsewhere.
• In every case, they should be placed, so far as is practical, to keep their effect on the house and the street down, and taken away once no longer needed.

From the same date, plug-in solar kits of up to 800 watts, the kind hung on a balcony or wall and plugged into a socket, were brought within the rules as well.

Conservation areas on the Widnes side

Halton Borough Council records on the Planning Data platform, read 3 November 2026.

The Cheshire Historic Towns Survey of 2003 named two of them within the town it studied: Victoria Square, around the civic centre, and West Bank Promenade, by the river. Inside any of them, panels on a wall or balcony fronting a road are not permitted development, and a flat-roof array needs the council's prior approval. Panels on a pitched roof stay permitted within the 0.2 m limit, but the duty to minimise their effect weighs more heavily, so a rear slope is the safer choice where it faces the sun.

Article 4

An Article 4 direction lets a council withdraw some permitted development rights in a defined area. Halton's only direction, in force from 24 September 2025, takes away the right to turn a family house into a small shared house in parts of Appleton, Central & West Bank, Halebank and Runcorn. It does not touch roofs, panels or anything else on this page.

Listed buildings

Panels on a listed building need listed building consent as well as planning permission. By our count of the national list against the ward boundaries, 38 listed buildings stand in the Widnes wards: 5 at Grade II* and 33 at Grade II. They include St Luke's Church at Farnworth and St Mary's at West Bank, the power house of the old transporter bridge, Gossages Tower, built around 1860 for the chemical makers Hutchinson and Co., and Kingsway Health Centre, a 1930s health centre listed in 2009. The road bridge to Runcorn, opened in 1961, is listed at Grade II.

Flats and rented homes

Part 14 rights cover blocks of flats too, but the roof belongs to the freeholder or landlord, whose agreement comes first. In Widnes about one household in five rents from a social landlord, rising to more than four in ten in Central & West Bank, so for many the landlord's view is the first question, not the council's.

Being certain

1. Check whether the house is listed, using the national list, and whether it lies in one of the five areas above.
2. Ask the installer to confirm in writing that the design stays within the 0.2 m or 0.6 m limit.
3. If you want proof, for example before selling, apply to Halton Borough Council for a lawful development certificate.

Related pages

• Victorian terraces
• Homes across Widnes
• Choosing an installer
• Glossary

Sources for this page

1. GPDO 2015, Schedule 2 Part 14: renewable energy on houses (legislation.gov.uk)
2. SI 2026/896: the solar permitted development amendments of 27 August 2026
3. SI 2026/848: balcony and plug-in solar
4. Halton Borough Council: the borough's ten conservation areas
5. Planning Data: Victoria Square conservation area, Widnes (designated 1990)
6. Halton Borough Council: Article 4 direction for shared houses (from 24 September 2025)
7. Planning Data (DLUHC): listed buildings recorded in Halton
8. Halton Borough Council: list descriptions of Widnes's listed buildings and monuments
9. Cheshire Historic Towns Survey: Widnes archaeological assessment (Shaw and Clark, 2003)
10. Historic England: search the National Heritage List