Planning Permission for Windows in Birmingham: Estates, Conservation Areas and Listed Homes

Houses

For a house, the starting point is permitted development: work the law allows without a planning application. Replacing windows and doors falls under Class A of the General Permitted Development Order, and condition A.3(a) asks for materials of similar appearance to those already on the outside of the house. A change of colour, material or style is where "similar appearance" becomes a judgement, so ask the council before you order.

Two details catch people out. A new bay window adds floor space, so it's an extension, judged against the extension limits rather than the replacement rule. And an upper-floor window in a side wall must be obscure-glazed, with no part that opens unless that part is more than 1.7 m above the floor of the room.

Flats and Maisonettes

Flats and maisonettes have no householder permitted development rights (article 2(1)). In practice, a genuine like-for-like replacement usually needs no permission, because the building looks the same afterwards. A different style, colour or material may need an application, and the Planning Portal admits that "local policy and interpretation ... varies from council to council". The answer for your block comes from whichever council covers it, which is why our quote form asks whether the property is a house or a flat.

Estate Schemes: Calthorpe and Bournville

Two parts of Birmingham have a layer of control that sits outside planning law. The Calthorpe Estate in Edgbaston and Bournville Village Trust (BVT) each run a Scheme of Management under section 19 of the Leasehold Reform Act 1967. In plain words, it's a set of estate rules, approved under that Act, that makes owners ask the estate before changing the outside of their homes. Calthorpe says its scheme exists "to ensure that the original character of individual properties and the uniqueness of residential developments are retained".

The council flags this itself: "In some areas (for example Bournville or the Calthorpe Estate in Edgbaston) you may also need the estate manager's permission."

The practical point outweighs every rule below: get the estate's written consent before you order. Made-to-measure windows usually can't be cancelled once ordered, so a refusal that arrives after the order could leave you paying for frames you're not allowed to fit.

The Calthorpe Estate

The estate "covers a large part of Edgbaston, and small areas of Harborne and Quinton", so an Edgbaston address doesn't automatically put you inside it. Its FAQ says that "regardless if your property is leasehold or freehold … you need to … obtain permission from Calthorpe Estates in addition to planning permission from Birmingham City Council."

Its Residents' Handbook (2024) says: "We have no objection to the use of high quality UPVC." Timber is still required "for those houses that possess special or unique design features". Where uPVC goes in, "particularly in the front elevation", the frames must "match the original in colour, style and appearance" and carry "surface-mounted glazing bars".

Front doors should be sympathetic to the original, though the estate "might be prepared to consider … a modern contemporary style". Conservatory glazing should "mirror the window style and frame of the original property". Listed homes, and homes in the Edgbaston or Barnsley Road conservation areas, must check with the council's planning department too.

The estate's 2024 fee sheet lists £230 + VAT for window replacement requests "where works are not like for like".

Bournville Village Trust

BVT's Design Guide (2024) requires "approval for alterations to all properties", running "in parallel to any planning permissions". It adds: "Note that even if works are 'permitted development' via the planning system, they still require BVT approval." And the reverse holds: "Obtaining BCC consent does not mean that BVT will also grant approval." Windows and doors are a "Minor" application, but "no works should be started until all steps have been completed". Like-for-like repairs, such as "repairing a window frame", need no application.

What BVT accepts depends on the zone:

• Bournville Village Conservation Area. "UPVC is not permitted to the front and side elevations (for windows, doors or conservatories)." At the rear, uPVC and powder-coated aluminium windows in a slim steel style "would be considered".
• Bournville Tenants Conservation Area. BVT states "a preference for timber or steel framed windows, but UPVC and aluminium will be considered where sympathetic to the original windows and house style".
• Traditional and Modern zones. uPVC or aluminium is "considered", in white, cream or the house's colour at the front, side and rear upper floors; black or grey only on the rear ground floor, out of view from the street.

In every zone, Georgian-style windows may only have external astragal bars, and new windows "must match those on the original house". For doors, timber is preferred; uPVC and composite doors are allowed in the Tenants area, only at the rear in the Village area, and considered elsewhere if they match.

The Scheme doesn't cover every street the Design Guide does: BVT names Bournville Park and Manor Park Estates and Meadow Rise as outside it, though covenants in the deeds may still apply. Check BVT's own map of the Scheme boundary, and your deeds.

BVT's published fee (July 2023 list) was £168 + VAT; fees are reviewed every three years.

Conservation Areas and Article 4

"There are currently 29 recognised conservation areas in Birmingham," says the council. Being in one doesn't remove a house's right to fit similar-looking windows; Historic England confirms the route stays open unless an Article 4 direction takes it away.

An Article 4 direction withdraws permitted development rights from the properties it names. In the council's words, "even minor residential alterations, for example … replacing windows … will require planning permission". Government guidance confirms Class A covers "general alterations such as new windows and doors".

The council lists householder directions in Austin Village, Bournville Village, Edgbaston (part), Greenfield Road, High Street Sutton Coldfield, Moor Pool Harborne, Moseley, Old Yardley, Selly Park, Selly Park Avenues and St Agnes. Their reach varies:

• Moor Pool, Harborne. A direction covers "every residential property throughout the whole of the Moor Pool Estate". Front window replacements, and some side ones, need an application, and the council adds: "It is unlikely that uPVC windows would be considered acceptable."
• Moseley. Named streets only: certain addresses on Amesbury Road, Chantry Road, Church Avenue, Park Hill and Salisbury Road, where "Changes to external doors and windows will require planning permission." "Upvc, double glazed, metal and stained hardwood windows are not allowed," said the council's 2005 guide.
• St Agnes, Moseley, and Greenfield Road, Harborne. Both have 2009 directions withdrawing Class A on named addresses.
• High Street, Sutton Coldfield. A direction has covered part of the area since 1984.
• Bournville Village. Changes "seen from the street or public places require planning permission", says BVT, on top of its own approval.
• Selly Park and Selly Park Avenues. Selly Park's direction limits some rights on most houses; Selly Park Avenues is also on the council's list.
• Edgbaston. The council lists this direction as covering part of the conservation area only, so check your street.

No direction applies in Kings Norton, Northfield Old Village, Harborne Old Village, Four Oaks, Anchorage Road, School Road Hall Green or Bournville Tenants.

Outside the City

Solihull has 20 conservation areas, including Solihull (1968), Knowle (1968) and Castle Bromwich (1980), which is Solihull's, not Birmingham's. We couldn't find Solihull's list of Article 4 directions, so check with Solihull Council; its 2007 appraisal records Article 4 directions on certain Knowle addresses.

Sandwell has nine. Its directions cover some of the residential properties in High Street, West Bromwich, and 4–32 Bearwood Road, Smethwick, where "any works that change the external appearance of a building may require planning permission".

Walsall has 18, Aldridge among them, with no direction listed there. Its directions in Highgate and on a few single addresses protect timber windows and doors.

Dudley has 22, with directions in Mushroom Green, The Leasowes and Love Lane that need permission to "Remove, replace or alter windows and doors". The Leasowes in Halesowen is affected; Dudley town's conservation areas are not.

Listed Buildings

Historic England says replacing windows on a listed building "will always require" listed building consent. Work without it is an offence under section 9 of the Planning (Listed Buildings and Conservation Areas) Act 1990. Talk to the council's conservation team before anyone measures up. Our sash windows page covers period frames.

Secondary Glazing

Secondary glazing is an extra pane fitted inside the existing window; Historic England says reversible secondary glazing "does not generally need listed building consent", and that it "can reduce heat loss as effectively as double glazing ... and is even better than double glazing at reducing noise". Approved Document L's heritage route also accepts low-e secondary glazing.

Two cautions. Don't assume it sits outside building regulations; ask the installer how the job will be signed off. And if the window behind it is an escape window, the inner panel must open too. More on fitting it is under secondary glazing.

Conservatories

Planning treats a conservatory as an extension. For a house, Class A allows a single-storey rear conservatory without an application within these limits:

• Depth. 3 m from the rear wall, or 4 m on a detached house; 6 m or 8 m through prior approval, which isn't available in conservation areas.
• Height. No more than 4 m, with eaves no higher than 3 m within 2 m of a boundary.
• Coverage. With other extensions and outbuildings, no more than half the land around the original house.
• Side. Single storey, no wider than half the house, and none in a conservation area.

Building regulations are a separate test. A conservatory is exempt when it's at ground level with a floor area that does not exceed 30 m², its glazing meets the safety rules, the walls or doors separating it from the house stay, and the heating isn't extended into it. A new opening through the house wall needs approval regardless. A solid roof that significantly cuts the glazing can end the exemption; see conservatory roof replacement and conservatory costs.

Building Regulations

Since 1 April 2002, replacing a whole window or door has been building-regulations work, a "controlled fitting". Replacing only the glass, or a sealed unit in its existing frame, isn't. An external door no more than half glazed needn't be notified, though it must still meet the thermal standard.

Six government-authorised schemes let installers self-certify: Assure, Blue Flame, CERTASS, Certsure, FENSA and NAPIT. You get a certificate, and the council gets a notice, within 30 days. Otherwise it goes through building control; unapproved work can be regularised later. GOV.UK is plain about the risk: without approval "you will not have the certificates of compliance you may need when you want to sell your home".

New windows need a U-value of 1.4 W/m²K or band B. Existing trickle vents should be replaced with ones no smaller, and controllable. An escape window must keep at least the same potential for escape, and low-level glass and glass in or beside doors must be safety glass. Ask for the FENSA, CERTASS or other scheme certificate; how to choose an installer covers the other checks.

Read this guide as general information, not as planning or legal advice. Rules and fees change, so check with your council and, where it applies, the estate office before you order.

Getting a Quote

Tell us about your windows and we'll arrange a free survey and a written quote from a local installer. Before you agree to anything, ask the installer in writing how they'll handle any consents. You can get a quote in about a minute.