Guide

Repairing roofs on listed and conservation homes in Stroud

A repair on a protected roof is judged on one idea: does it leave the building as it was? This guide covers when consent is needed, how materials are matched, why lime mortar matters and who to speak to first.

Stroud District has a great many protected buildings: cottages in Painswick and Uley, mill buildings along the valley floors, terraces in the town and farmhouses on the hills. If your home is one of them, a roof repair is not only a building job. It is also a question of law and of record, because the roof sits inside whatever the listing covers.

This guide is about repairs, not whole re-roofs or guarantees. It explains how to check your home's status, when consent applies, how like-for-like repair works in practice, why the mortar matters as much as the slates, and what to expect from the conservation officer at the council. For guarantees on repair work, see roof repair guarantees; for the wider service, start at roof repairs.

Is your home listed, or just in a conservation area?

The two are different, and the difference decides what you need to do.

Listed buildings

Listing puts a building under statutory protection. Stroud District Council stresses that every grade gets the same protection, covering the whole building, inside and out. Section 7 of the 1990 Act that governs listed buildings and conservation areas says that no one may carry out works altering what makes a listed building special without authorisation, and section 9 makes doing so an offence. The roof is as much part of the listing as the front door.

Outbuildings, walls and barns in the grounds can be caught by the same listing, and the council suggests asking its conservation department about each one instead of guessing.

Conservation areas

The council names 41 conservation areas in the district, among them Painswick, the valley mills, Uley, Nailsworth and Dursley. A conservation area covers a whole neighbourhood and brings extra planning controls, but it does not make every house listed. Five carry Article 4 Directions, which remove certain permitted development rights (the council lists them, so ask which five). Whether any of those directions touches roofs is not stated in the council's published text, so it recommends a call to the planning department.

How to find out

Ask Stroud District Council's planning and conservation team, or check the council's listed building pages. Across the district boundary, the neighbouring council holds the equivalent records. We can only tell you what we see on site; the legal status comes from the council.

When does a roof repair need consent?

Repairs are not all treated alike. The test the law applies is whether the work would affect the character of the building. Replacing a handful of failed slates with matching ones, using the same fixings, is normally maintenance and unlikely to change the character. Changing the covering, altering the pitch, rebuilding a chimney in different stone or fitting rooflights is a different matter.

Under section 55 of the 1990 planning statute, a job that does not alter how the building looks from outside is not development, and putting back the same covering as before usually lands on that side. That is not the same as listed building consent. A house can be exempt from planning permission and still need listed building consent for the same work, so the two questions are asked separately.

Churches and chapels

Churches still in use as places of worship fall under the ecclesiastical exemption: a faculty granted through the diocese authorises roof works there, and the council's consent route is not used. When worship ends, or a chapel is converted to a home, the exemption goes and the council's listed building consent normally takes over.

Our approach

We do not give legal advice. We tell you what the repair involves, recommend you talk to the council before work begins, and describe the work in the written quote in enough detail for the conservation officer to understand it. Where consent or notification is required, we set out what applies and look after the Building Regulations notification when the job calls for one.

When in doubt, ask the council before ordering materials. A phone call costs nothing, while unauthorised works to a listed building can be a criminal offence.

Matching the covering: stone, slate, clay and the right pegs

Like for like is the principle behind every protected-roof repair, and it goes further than colour. A replacement has to resemble what it replaces: the same material, size, weight and texture, hung or fixed the same way.

Cotswold stone slates

Cotswold District Council's technical guidance reproduces English Heritage policy for stone roofs. New slates are to agree with the old on geology, colour, grain, size and thickness; sandstone and limestone must never replace one another; and manufactured imitations (fibre resin, concrete, reconstituted stone) are judged unsuitable for historic buildings. Salvaged slates belong only on the building that supplied them. The guidance dates from 2000 and records traditional practice. Our guide to reclaimed and new stone slates covers sourcing.

Diminishing courses

Stone roofs are laid with long slates at the eaves and short ones at the ridge. A repair slate has to be the right length for its course, or it will sit proud of the tail line or leave a thin lap. We cover the system in diminishing courses.

Clay, natural slate and fixings

Handmade clay tiles vary in colour and camber, and a machine-made replacement can stand out. We try to find the nearest match, often from stock of the same age, and mix new with old across the slope so a new tile does not stand alone. Natural slate is matched on origin, size and weight. Traditional fixings matter as well: oak pegs for stone, nails of suitable metal for slate and clay, and no clips or modern fittings visible from the lane.

Lead

Lead flashings are dressed to the original pattern. Lead is sold in numbered codes, thicker as the number rises, and Leadworx names Code 4 the usual flashing choice, leaving the heavier codes to valleys and gutters.

Lime mortar and the case against cement

On many older roofs the mortar is as important as the covering. Ridges, hips, verges, chimney flaunching and the pointing of gable copings were traditionally bedded in lime mortar, which is softer and more permeable than modern cement.

Why softness matters

Old walls, chimney stacks and stone were built to take in moisture and let it out again. A hard cement mortar traps that moisture in the stone and forces it to leave through the stone face instead, which can flake the surface. Lime is designed to be the weaker, sacrificial element, easier to repoint and kinder to the building. That is the principle behind using it on repairs to protected buildings.

Working with lime

Lime hardens slowly as it takes up carbon dioxide from the air, and until then frost and downpours can ruin it. The work is therefore planned for mild, dry spells and covered afterwards. Our guide to roof repairs in winter explains how that scheduling works. Pointing is raked out by hand to a sensible depth so the old joints are not damaged, and the mix is matched for colour and texture against the existing work.

Fixings as well as mortar

The 2014 edition of BS 5534 treats mortar as insufficient alone for ridge and hip pieces, so metal fixings go in as well. On a protected roof they are chosen to be discreet, in the same colour as the covering, and fixed so that they can be removed later without harming the stone.

When cement is already there

Many older roofs have been patched in cement in the past. Taking it out can damage the masonry, so the condition is assessed before deciding how far to go, and the options appear in the quote with their trade-offs.

Working with the conservation officer

Conservation officers at the council are the people who advise on listed buildings and conservation areas, and they are a resource, not an obstacle. They want the roof to survive, and they know the local buildings. A good application is clear, specific and illustrated.

What helps

  • Close photographs of the roof itself, taken at the survey, showing the covering, the laps, the pegs or fixings, the ridge and any damage.
  • A short schedule of work listing what will be replaced, with what, and by what method.
  • Material details: type, origin, size and thickness of any new slates or tiles, and the mortar mix.
  • Whether you have a sample. Officers often welcome seeing a new slate beside an old one.

Timing

Allow time for the council to respond, and do not order materials that cannot be returned until you know the position. If damage is urgent, a make-safe that is reversible and does not alter the character of the building is the usual first step; see temporary roof repairs. After a storm, our checks after a storm help you record damage before anything is moved.

Insurance

Cover for listed homes is often written differently from standard policies, and the repair may need to follow the conservation officer's requirements. Tell your insurer the building is listed when you report a claim, and get the scope agreed before the work.

What a protected-roof repair costs and how it is quoted

Repairs to a listed roof usually cost more per slate or tile than the same repair on an ordinary roof, because the materials are matched rather than bought off the shelf, and the work is slower and more careful. We can give only national guidance for the range. MyBuilder's 2026 slate guide puts a single natural slate repair at £60 to £120 and five to ten slates at £150 to £350. Checkatrade's guide, updated in 2026, gives stone slate generally at about £160 to £210 per m² for a re-roof, depending on the slate's source, new or salvaged, and where you live; no figure specific to the Cotswolds was found. Roofer day rates in MyBuilder's guide are £250 to £300.

Treat all of these as a general indication. Your own price is set after the survey and appears in a written quote, from access through to clearing the site. Where we think consent will be needed, the quote says so and describes the work in a form the council can read.

VAT

Expect 20 per cent VAT on repairs, shown on your quote. The government's building guidance puts approved alterations to listed dwellings at the same rate since October 2012.

Guarantee

Our workmanship guarantee runs for 10 years and is in writing. It covers our work; it does not cover consent decisions, which are the council's to make.

Ring 01453 933613, or send a damage photograph by WhatsApp or through the form, and the reply will cover what the survey must examine and what you should raise with the council.

Listed roof repairs: questions about consent and materials

Do I need listed building consent to replace a few slipped slates?

Replacing a few failed slates with matching ones, fixed the same way, is normally maintenance and unlikely to alter the character of the building. If there is any doubt, ask the council's conservation team before work begins.

Can I use modern cement mortar on my listed cottage's ridge?

It is better not to. Lime is softer and more permeable, and protects the old stone and brick. Mechanical fixings are added as well under BS 5534:2014, chosen to be discreet.

Does a conservation area mean I cannot change my roof covering?

It means extra controls apply and, in five areas, Article 4 Directions remove some permitted development rights. Swapping like for like is a different matter from changing the material, and the planning team can say which one your plan is.

Get your roof priced

Tell us what's happening and we'll call you back with a time to look at it.

  • Guide prices before we visit
  • A written quote
  • 10-year workmanship guarantee

Rather talk? 01453 933613

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