Windows & doors in Croydon: Planning Permission Guide
A guide to replacing windows and doors in Croydon — when you need planning permission and typical costs.
Based on 74 decided applications in Croydon over 12 months (65 granted, 9 refused).
Croydon is a large and diverse south London borough with conservation areas around Croydon Minster, Addington Village, Coulsdon, South Norwood, and Waddon. The south of the borough borders Green Belt and the Surrey Hills AONB (National Landscape), triggering Article 2(3) designated land rules in the Biggin Hill and Kenley fringe. Article 4 Directions restrict specific rights in some conservation areas including parts of Shirley, Coulsdon, and Upper Norwood. Flood zones apply along the Wandle valley.
Recent windows & doors decisions in Croydon
The 5 most recent decided applications. Addresses redacted to postcode area.
Use of the top floor of the Centrale multi-storey car park for a temporary outdoor summer event for three consecutive summer periods, inc…
Refurbishment and/or replacement of existing windows in the main hotel building and associated repairs
Alterations, removal of 1no shopfront window and installation of 1no metal louvred ventilation grill.
Alterations to the rear fenestration of the building to facilitate the installation of sliding double glazed bi-fold doors.
Retrospective application for the replacement of timber windows with uPVC double-glazed units at second-floor level
These are borough-wide. See the 5 nearest to your address.
Check your address freePermitted 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 London
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 £500–£1,500.
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 Croydon — your address, your constraints, your council's own recent decisions.
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