Question answered
Horsham stone roofs in conservation areas
The short answer
Repairing a Horsham stone roof in matching materials generally needs no planning permission, even in a conservation area. The exceptions are listed buildings and streets under an Article 4 direction that withdraws roof rights. Local appraisals also set expectations: Steyning's names mortared joints on relaid stone as inappropriate. Talk to the planning team before changing the material.
Living under old stone in a conservation area adds a layer of rules, though fewer than people fear. The answer depends on the work, on any Article 4 direction and on whether the house is also listed.
What a conservation area changes
A conservation area is an area the local planning authority designates because of its special character. Under the Planning (Listed Buildings and Conservation Areas) Act the authority must designate such areas, and once it has, certain permitted development rights stop applying within them.
For a roof, the first point is that putting back a covering in the same material is rarely counted as development. Planning law carves out works that do not change what a passer-by sees, so patching a stone roof with matching slabs usually sits outside planning control, subject to listing and Article 4.
What designation does alter is how much attention appearance gets. Councils write appraisals describing what makes each area special, and those documents inform advice on bigger proposals. Horsham stone is often named in them as part of the local character.
The words that count on a roof are matching, repair and keeping what is there.
Article 4 directions that reach roofs
An Article 4 direction strips chosen permitted development rights from one mapped patch of town. Adur & Worthing Councils explain it is no outright ban: an application is simply required for whatever the direction names.
Five local directions touch roofs, and each removes something different. Old Shoreham and Kingston Buci lose their rights over roof coverings, rooflights and solar panels where homes face a road or public path, and over chimneys and flues anywhere on the plot. Worthing's Warwick Gardens removes rights to alter a chimney, and to rework a street-facing or open-space-facing slope in shape or finish. Warwick Place covers roof alterations on the side facing that street, and Western Row withdraws dwellinghouse rights widely.
Two other Worthing directions, at Ambrose Place and Cowper Road, were read and leave roofs alone. Get the exact wording for your street from the council before planning any work.
What the village appraisals say about stone
Several local appraisals mention Horsham stone directly. The Steyning one, from Horsham District Council, describes Horsham slabs and clay peg tiles on older buildings, notes that slab roofs are still plentiful in the town, and lists relaying them with mortar in the joints among the wrong ways to repair. Our answer on mortar on stone slates explains the thinking.
Henfield's appraisal puts peg tile first and Horsham stone slate second in frequency. Storrington's counts Horsham slab roofs, Church Street among them, as part of its character.
Over in Adur, the Kingston Buci appraisal singles out the Old Rectory's substantial Horsham slab roof, calling the material uncommon in the district. North Lancing shows some localised use, such as the church's north aisle, and Old Shoreham lists a few slate and slab roofs.
Documents like these tell a roofer what to protect: the stone itself, its diminishing courses and the finish of the joints. Reading the one for your area is time well spent.
Listed, in the National Park, or both
A conservation area and a listing are separate protections, and a listed house inside a conservation area gets both. On a listed building, anything affecting its special character needs listed building consent, and the SRA says a listed Horsham roof cannot be altered without it from the local authority. Our page on listed building consent for stone roofs goes further.
Maintenance gets kinder treatment. The National Park Authority advises that regular maintenance and minor repairs made on the spot are fine, while renewing historic fabric could need consent.
Planning authorities also differ. Castle Goring and Highdown, both Worthing conservation areas, sit within the National Park Authority's planning remit. Elsewhere in Worthing and Adur the two councils lead, and they run a joint planning team from Worthing Town Hall.
Whichever applies, establish it before ordering stone.
What we do before work starts
First we check the address against the council's conservation area and Article 4 records, then work out which stone is up there and how it was laid. Single lap or double lap, shadows, bedding and ridge all bear on what counts as a matching repair.
If consent might be needed, we tell you before you commit, and the application itself goes to the relevant authority. For Adur and Worthing addresses the planning team can be reached at planning@adur-worthing.gov.uk; Horsham District Council and the Park Authority cover their own areas.
After the survey you receive photographs of the slopes and one written price. What drives that price is how much of the existing stone can go back and how fussy the details are. For ridges, see ridges on stone roofs, and for the whole service, Horsham stone roofing.
Planning questions are best settled early, because they shape which stone and which method are acceptable, and a repair that has to be redone is a costly mistake. Where any doubt remains, we hold the order until the answer is back from the council.
Conservation area stone roofs: two further questions
Do I need permission to patch a stone roof in a conservation area?
Usually not, provided the patch matches and the building is not listed. Find out whether an Article 4 direction covers your street, because that can remove rights. Changing the covering to clay or another material is a different matter, so raise it with the planning team first.
Can I swap my stone slates for clay tiles in a conservation area?
Treat that as a change of appearance. It may need permission, and on a listed building it needs consent. The Stone Roofing Association says Horsham stone should be the first choice, with clay a long-established but less favoured substitute. Speak to the council before ordering anything.
Tell us about your roof
Describe what is happening and we will call you back to arrange a visit.
- Photographs of what we find
- A written quote with one total price
- Or call 01903 299063
10-year workmanship guarantee, in writing.