Windows & doors in Windsor and Maidenhead: Planning Permission Guide
A guide to replacing windows and doors in Windsor and Maidenhead — when you need planning permission and typical costs.
Based on 19 decided applications in Windsor and Maidenhead over 36 months (7 granted, 12 refused). Limited data — treat as indicative.
966 listed buildings recorded. Green Belt land covers parts of the borough.
Personalised odds
5 nearest comparables & refusal reasons for your address.
Get my report — £9See a sample →Recent windows & doors decisions in Windsor and Maidenhead
The 5 most recent decided applications. Addresses redacted to postcode area.
Construction of a detached nursery building with associated outdoor play area, refuse store, service bay, parking and landscaping.
Outdoor swimming pool ancillary to the main dwelling.
Widening and replacement of the existing entrance door and alterations to fenestration to the west elevation of the Earth Block building.
Details required by Condition 4 (Brick, Bonding And Mortar); Condition 6 (External Joinery); Condition 7 (Window And Door Details) and Co…
Consent for the replacement of flooring to the ground floor hallway, lounge and study, creation of a double door opening at ground floor …
These are borough-wide. See the 5 nearest to your address.
Get my report — £9Permitted Development Rules
Replacing or adding windows/doors may need planning permission in conservation areas or for listed buildings.
Replacing windows and doors like-for-like generally doesn't need planning permission. However, in conservation areas or listed buildings, changes to the appearance of windows and doors may require consent.
Typical Costs in South East England
Window and door costs depend on the number of openings, material choice, and style.
Typical total
Typically includes
Typically excludes
Highly variable depending on number of windows, material (UPVC vs timber vs aluminium), and style. Per-window costs typically £450–£1,400.
Get a personalised cost estimate based on your actual windows & doors dimensions.
Get my estimateWhich Professionals Do You Need?
Window replacements rarely need professional services. Suppliers typically handle measurement, manufacture, and installation.
This project is unlikely to need specialist professional services beyond a competent builder.
This type of project does not typically require architectural services.
This guidance is based on a typical semi-detached house with no special constraints. Listed buildings, conservation areas, and attached properties may require additional professional input.
Find out exactly which professionals you need for your windows & doors.
Get personalised guidanceConservation Areas & Listed Buildings
In conservation areas, changing window materials (e.g. timber to UPVC) or styles may need planning permission. Listed buildings always need Listed Building Consent for any window or door changes.
Properties in conservation areas often have reduced permitted development rights. Some project types (like side extensions) lose PD rights entirely. An Article 4 Direction can remove additional PD rights.
Listed buildings (Grade I, II*, or II) have no permitted development rights at all. Any external alteration requires Listed Building Consent in addition to any planning permission. An architect experienced in heritage work is essential.
Check if your property is in a conservation area or has other planning constraints.
Check my propertyFrequently Asked Questions
Just want a quick yes/no for your windows & doors?
Run our free 2-minute check to see whether your project likely qualifies as permitted development in Windsor and Maidenhead. For personalised approval odds and nearby comparables, get the £9 report.
Free 2-min check