Windows & doors in Haringey: Planning Permission Guide
A guide to replacing windows and doors in Haringey — when you need planning permission and typical costs.
Based on 178 decided applications in Haringey over 12 months (174 granted, 4 refused).
Haringey has conservation areas including Muswell Hill, Highgate (shared with Camden), Crouch End, Tottenham Green, and Stroud Green. Article 4 Directions restrict external alterations in Muswell Hill and parts of Crouch End, particularly targeting window replacements. Listed buildings concentrate around Alexandra Palace and Highgate village. Much of the borough is Edwardian terrace stock where materials and detailing are scrutinised in conservation areas.
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5 nearest comparables & refusal reasons for your address.
Get my report — £9See a sample →Recent windows & doors decisions in Haringey
The 5 most recent decided applications. Addresses redacted to postcode area.
Replacement of existing single-glazed sash and casement windows with like-for-like double-glazed timber windows, matching the existing de…
Replacement of single glazed timber sash windows with double glazed timber sash windows.
Like for like replacement timber framed "loggia" window.
The installation of LED floodlighting to outdoor tennis court No. 5.
Roof terrace with pergola and opaque glazing on the outrigger roof (AMENDED PLANS).
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 London
Window and door costs depend on the number of openings, material choice, and style.
Typical total
Typically includes
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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.
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