Windows & doors in Cambridge: Planning Permission Guide
A guide to replacing windows and doors in Cambridge — when you need planning permission and typical costs.
Check if your windows & doors qualifiesWindows & doorss in Cambridge at a glance
approved
application fee
weeks typical
Based on 32 decided applications in Cambridge over 12 months (30 granted, 2 refused).
Cambridge has 13 conservation areas affecting external alterations in those zones. 19 Article 4 directions affect specific streets. 1,683 listed buildings recorded. Green Belt land covers parts of the borough. Cambridge planning is run by the Greater Cambridge Shared Planning Service (jointly with South Cambridgeshire).
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Approval probability, 5 nearest comparables, refusal reasons — for your specific address.
Recent windows & doors decisions in Cambridge
The 5 most recent decided applications. Addresses redacted to postcode area.
Replacement timber windows and doors.
Non material amendment on application 25/04527/HFUL for bedroom 1 gable joinery changed from Juliette balcony door-set to full height win…
Enclose an existing steel portal framed building using profile steel sheeting and new doors.
Removal of a small window and formation of a new opening, mounting of new ventilation grilles with associated pipework, and installation …
Removal of a small window and formation of a new opening, mounting of new ventilation grilles with associated pipework, and installation …
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 East of 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–£1,300.
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 Cambridge. For personalised approval odds and nearby comparables, get the full report above.
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