Planning permission in Haringey
Constraints: planning.data.gov.uk (ingested 2026-06-13) · Prices: HM Land Registry UK House Price Index, October 2025 · 174 sales in October 2025 · Open Government Licence
Building in Haringey — field notes
Haringey is really two planning worlds in one borough. The west — Highgate, Muswell Hill, Crouch End — is Edwardian suburb at its most coherent, protected by conservation areas and, across much of Muswell Hill's core, Article 4 directions that pull front elevations, roofs and boundary treatments into planning control. The east — Tottenham, Wood Green, Seven Sisters — carries lighter designations, so permitted development does far more of the work and extension feasibility is generally higher.
The borough's signature project is the loft conversion: the Edwardian stock of N8 and N10 was practically designed for it, and the precedent base is deep. In the conservation cores, dormer design decides outcomes — rear dormers subordinate to the roof slope succeed, boxy full-width dormers and front-facing alterations fail. Rear extensions follow the familiar London pattern: scale against the neighbour's daylight, materials matched to the host. Highgate, shared with Camden across the borough boundary, is the hardest terrain — listed stock, protected views and an exacting amenity society make precedent and pre-application essential.
Working across Haringey, we find decision quality consistent but validation slow at busy periods — build buffer into programme. The east-west split also shows in values and build economics: identical extensions can produce very different uplift either side of the borough, which is exactly the calculation the dossier's sold-price comparables are there to ground.
Policy detail lives in the Haringey local plan and applications are submitted via the Haringey planning portal.
Conservation areas in Haringey
Real · planning.data.gov.ukEvery designated conservation area in Haringey from the official dataset — inside one, permitted development narrows and design scrutiny rises.
- 1
- 17
- 20
- 25
- 26
- Bowes Park
- Bruce Castle
- Campsbourne Cottage Estate
- Crouch End
- Fortis Green
- Highgate
- Hillfield
- Hornsey High Street
- Hornsey Water Works & Filter Beds
- Lordship Lane
- Noel Park
- Peabody Cottages
- Rookfield
- St Anns
- Stroud Green
- THRHC/Bruce Grove
- THRHC/North Tottenham
- THRHC/Scotland Green
- THRHC/Seven Sisters/Page Green
- THRHC/Tottenham Green
- Tottenham Cemetery
- Tower Gardens
- Trinity Gardens
- Vallance Road
- Wood Green Common
Source: planning.data.gov.uk · Open Government Licence. Boundaries are checked at address level by the area report.
Article 4 directions in Haringey
Real · planning.data.gov.ukArticle 4 directions in Haringey remove specific permitted development rights street by street — the single most common reason a "no permission needed" project turns out to need one.
- Ashley Rd
- Bounds Green Industrial Estate
- Brantwood Road
- Constable Crescent
- Cranford Way
- Cross Lane
- Crusader Industrial Estate
- Fountayne Rd
- Hale Wharf
- Herbert Rd/ Ashby Rd
- High Road East
- High Road West
- Marsh Lane
- Millmead & Lockwood
- North East Tottenham
- Omega Works
- Queen Street
- Rangemoor Rd
- South Tottenham
- Vale/ Eade Rd
- Vale/ Tewkesbury Rd
- White Hart Lane
- Willoughby Lane
- Wood Green
Source: planning.data.gov.uk · Open Government Licence. Boundaries are checked at address level by the area report.
What gets built in Haringey
PD carries many schemes in the east; Muswell Hill and Highgate need full applications.
Costs & planning route →Strong precedent in Crouch End and Stroud Green; conservation cores need full applications.
Costs & planning route →The borough's signature project — Edwardian N8/N10 stock converts beautifully, with dormer design decisive.
Costs & planning route →Hillside topography in Highgate and Muswell Hill adds structural complexity to any excavation.
Costs & planning route →Generous Edwardian gardens in N8/N10 suit larger dual-pitched designs set off the boundary.
Costs & planning route →Haringey postcode by postcode
N4 meets three boroughs — Haringey, Islington and Hackney — around Finsbury Park, so identical houses a street apart can answer to…
Area report →N8's Edwardian and late-Victorian houses around Crouch End Broadway are textbook loft-conversion stock, and the precedent record i…
Area report →N10 is dominated by Muswell Hill's planned Edwardian estate — coherent red-brick avenues protected by conservation-area status and…
Area report →N15's long Victorian terraces and maisonette conversions make it one of Haringey's more flexible districts: conservation coverage …
Area report →N22 centres on Wood Green's town-centre regeneration area, ringed by Edwardian terraces towards Bounds Green and Alexandra Palace.…
Area report →N6 splits between Haringey and Camden across Highgate village, where the conservation area, listed Georgian houses and the Highgat…
Area report →Haringey planning, asked straight
Do I need planning permission for a loft conversion in Haringey?
What does Muswell Hill's Article 4 direction actually control?
Is it easier to extend in Tottenham than in Crouch End?
How hard is planning in Highgate?
How do I check if my Haringey home is in a conservation area?
Related reading
Almost every London extension, loft and basement engages this Act. Here's how it actually works.
Read the guide →Four roof forms, four budgets — and one big conservation premium.
Read the guide →The designation nobody's heard of until it refuses their extension.
Read the guide →What applies at your address?
Borough-level rules only narrow it down. Enter a Haringey postcode for the live constraint check — conservation area, Article 4 and sold-price comparables, cited to source.
Siteline provides planning and cost intelligence for early feasibility only. It is not legal, planning, valuation, architectural, structural, or surveying advice. All estimates are indicative and must be verified by qualified professionals before purchase, design, planning submission, or construction.
Cost estimates are indicative only — not a quotation. Final price depends on survey, specification, structure, access, party wall matters, VAT, professional fees, and contractor availability.
Planning outcomes are not guaranteed. Local planning authorities make final decisions.