Planning permission asks a different question from the Building Regulations. It is about whether a change to a building is acceptable in its setting, and it only comes into play when the work counts as development. Plenty of roof jobs do not. Others do, and in Stroud District the setting often matters more than usual: the district holds 41 conservation areas, listed buildings in every valley, and a large share of its land lies inside the Cotswolds National Landscape.
This guide takes the main roof jobs in turn: re-roofing like for like, roof windows, dormers and a change of material. It then shows how the district's designations alter each answer. It is general information, not legal advice, and the planning team at Stroud District Council has the final word on your property. For the structural and insulation side, read our guide to Building Regulations for roof work. Our Stroud roofing services are listed from the home page.
When roof work counts as development at all
Section 55 of the 1990 planning Act excludes from development any work that leaves the outside appearance of a building materially unchanged. That is why replacing a worn covering with the same covering in the same place normally needs no permission. Nothing about the look of the building has changed.
The word to watch is materially. Moving from natural slate to concrete tile changes the colour, texture and profile of the whole roof, and a planning officer may see that as a material change. So may a switch from clay pantiles to a flat grey tile, or from stone to a manufactured product. Even where a change is modest, it may still be caught by one of the special protections described below.
Permitted development in plain terms
Some alterations are granted automatically by national rules known as permitted development, set out in the General Permitted Development Order. You do not apply for those, though conditions apply. Those rights can be withdrawn by an Article 4 direction or by a condition attached to an earlier consent. Flats do not have these householder rights at all, and on a listed building listed building consent is needed whatever permitted development allows. The Government's planning guidance describes an Article 4 direction as a way for a local planning authority to withdraw specified permitted development rights across a defined area.
So the usual order of questions is: is the work development, is there a permitted development right for it, and does anything in the property's history or designation take that right away?
Like-for-like re-roofing and planning
For most homes, putting the same covering back is the simplest case. Stone goes back as stone, slate as slate, plain clay tile as plain clay tile. The roof looks the same afterwards, so section 55 treats it as outside the definition of development. This is the heart of our approach to older buildings, and it keeps the planning question short.
It still pays to check in three situations. First, the house is listed, in which case separate rules apply (see below). Second, it sits in a conservation area with an Article 4 direction, where the council has withdrawn some rights. Third, a condition on the original planning permission, common on newer estates, controls the roof material or colour. Our page on roof tile colour and planning covers that third case.
If your roof is changing material, colour or profile, assume the council needs to see it until the planning team says otherwise.
What stays the same either way
Planning is one question and Building Regulations another. A like-for-like re-roof can be free of planning and still need an application if the work passes the roof area limits, as the Building Regulations guide explains. We tell you at the survey which of the two applies to your job and cover any application fee or notification in the quote.
For the full-replacement side of the service, see re-roofing and planning permission.
Roof windows under Class C
Fitting a roof window or rooflight is covered by Class C of Part 1 of Schedule 2 to the General Permitted Development Order 2015. The main limits, as the legislation reads, are these.
| Limit in Class C | What it means on site |
|---|---|
| Protrusion of no more than 0.15 metres beyond the plane of the original slope | A low-profile unit set into the covering, not a raised box |
| The top of the new window may not exceed the original roof's peak | Nothing may stand proud of the ridge line |
| Side-slope windows: obscure glass, fixed shut, unless any opening part sits over 1.7 metres up | Applies to a side-facing roof slope; the glass stays obscure even where the window may open |
| Chimneys, flues, soil pipes and solar equipment are not covered | Those are dealt with under other classes |
Class C has no exclusion for conservation areas or the Cotswolds National Landscape. That surprises people. A roof window that stays inside these limits can be permitted development even in a protected area, unless an Article 4 direction or a planning condition takes the right away, or the building is listed.
Where to read more
The skylight pages go into the detail: roof window planning for the rules, roof windows in a conservation area and conservation rooflights for the traditional style of unit. The glazing performance side sits in the Building Regulations guide.
Dormers and roof extensions under Class B
A dormer is a different matter from a flush window. It projects from the slope, adds volume and changes the profile of the roof, so it falls under Class B (additions to the roof of a house), not Class C. Class B contains a bar that matters in this district: under B.1(f), the right does not apply if the house is on article 2(3) land.
Article 2(3) land includes conservation areas and areas of outstanding natural beauty. The Cotswolds National Landscape is the current name for the Cotswold AONB, though it is still an AONB in law. So a dormer loft conversion is not permitted development in a conservation area or in the National Landscape. It needs a full planning application, wherever the house sits in the district within those designations.
The Planning Portal says the same for loft conversions generally: the house must not be on designated article 2(3) land for the permitted development right to apply. Outside those areas, other limits on volume, height and materials still apply, and an extension to the roof can also be affected by an Article 4 direction. Dormer or roof window compares the two options in everyday terms, and often a roof window is the route that avoids a planning application altogether.
Cladding and exterior finishes
Class A, which covers enlargements and alterations to a house, is also restricted on article 2(3) land: it does not allow cladding of any part of the outside of the dwelling. Wall cladding is not a roofing matter, but it often arrives in the same project as a dormer, so check it at the same time.
Conservation areas in Stroud District
Stroud District Council lists 41 conservation areas. They range from town centres such as Stroud, Nailsworth and Dursley to hill villages like Painswick, Bisley and Minchinhampton, and to groups of mill buildings along the valleys, each recorded as its own entry, Dunkirk Mills and Ebley Mills among them. If your house is near a village centre or an old mill complex, start by checking the council's map.
What a conservation area changes
A conservation area is article 2(3) land. That rules out dormers as permitted development and rules out exterior cladding. It does not, by itself, stop a like-for-like re-roof, and it does not stop a roof window within the Class C limits. What it adds is closer planning scrutiny of the street view, and the possibility of an Article 4 direction.
The five Article 4 areas
Five conservation areas carry Article 4 directions. Three are village or small-town areas (Wotton Under Edge, Bisley and Frampton on Severn) and two sit in Stroud itself, at the Top of Town and the Town Centre. Under the council's wording, some houses there lose certain rights, and an Article 4(2) direction bites only on elevations facing a road or public open space. Roofs are not mentioned either way in that published wording, and the council advises checking with its planning department. We say the same: ask before ordering anything. Our separate page on Article 4 directions and roof work concentrates on that one question.
The Cotswolds National Landscape
Just over half of Stroud District's land area lies within the Cotswolds National Landscape, much of it in the eastern half. The designation affects roof work through the article 2(3) rules above, and through the way the planning team reads proposals on stone buildings.
The Board that looks after the National Landscape gives advice and comments on applications, yet it does not decide them. That job belongs to the district council. If someone tells you the Board will approve your roof, that is not how the system works.
What it does and does not change
| Roof work | Effect of the National Landscape |
|---|---|
| Like-for-like re-roof | No change; not development if appearance is unaffected |
| Roof window within Class C | No change; the right still applies |
| Dormer or roof addition | Not permitted development; a planning application is needed |
| Cladding the exterior | Not permitted development |
| Building Regulations | Apply exactly as elsewhere |
For stone roofs, our stone roof planning page explains how the council tends to view a change of covering, and why we keep stone as stone.
Listed buildings and churches
Listing changes the position completely. The 1990 listed buildings Act, section 7, bars any alteration that affects a listed building's special character unless authorised, and section 9 makes breaking that rule an offence. The district council says protection applies to every grade and to the entire building, inside and out. Outbuildings in the grounds are a question for its conservation department.
In roofing terms, that means that renewing a covering on a listed house normally needs listed building consent for anything beyond minor like-for-like repair, and the choice of material, the ridge, the pegs and fixings, and even the mortar can be part of the conversation. A rooflight or a change of material needs consent. Speak to the conservation team before you instruct anyone.
Churches in use
A church still in worship use falls under the ecclesiastical exemption instead. For a Church of England church, roof work needs a faculty, granted by the diocese's Consistory Court, rather than the council's listed building consent. The exemption lasts only while the building is used for ecclesiastical purposes, so a church that has closed, or a chapel now lived in, will normally go back to the council for listed building consent. Whether planning permission is also needed for external church works is a question for the diocese and the council together.