Which Haringey postcodes does this permitted development scheme service cover?
Haringey runs from Highgate to Northumberland Park and the answer to “can I build this without permission?” changes several times along the way. The table lists the districts we draw in and who validates the application in each. Fees quoted are the statutory England rates for 2026, not our estimates.
| Postcode | Area | Dominant stock | What it means for a permitted development scheme |
|---|
| N4 | Finsbury Park / Stroud Green | Victorian terraces, post-war estates | N4 splits three ways. Finsbury Park and Stroud Green addresses land with Haringey, Islington or Hackney depending on the street, and those councils do not decide alike — across three financial years to 2025-26 Haringey granted 89.5% of householder applications and Islington 90.9% (MHCLG PS2). Read the authority off your council tax bill before anyone starts drawing. |
| N8 | Crouch End / Hornsey | Edwardian terraces, Victorian villas | N8 is Haringey from end to end, taking in Crouch End and Hornsey. Committee is rarely the bottleneck: on the same three-year count the borough settled 4,386 of its 4,430 decisions under delegated powers (MHCLG PS1), so all but a handful were signed off by a case officer. |
| N10 | Muswell Hill | Edwardian villas, 1930s semi-detached | N10 straddles the Haringey–Barnet boundary at Muswell Hill, and the side you fall on changes the arithmetic. Over the same period Barnet decided 4,584 householder applications and refused 756 of them; Haringey decided 2,227 and refused 234 (MHCLG PS2). Establish the authority first, then the policy. |
| N15 | Seven Sisters / South Tottenham | Victorian terraces, post-war estates | N15 covers Seven Sisters and South Tottenham, all of it Haringey. Plan around the clock rather than the outcome. Over 2023-24 to 2025-26 the borough decided 1,119 householder applications inside eight weeks, while 955 ran under an agreed extension of time instead of the statutory period (MHCLG PS2). |
| N17 | Tottenham | Victorian terraces, post-war estates | N17 sits wholly inside Haringey, so a Tottenham scheme answers to one authority and one Local Plan. The catch is designation rather than jurisdiction: several Tottenham streets fall inside areas where the side-extension and roof rights have been withdrawn, and the boundary runs down the middle of some of them. |
| N22 | Wood Green / Alexandra Palace | Edwardian terraces, post-war flats | N22 takes in Wood Green and Alexandra Palace, Haringey throughout. Two refusal figures are worth holding together. The borough refused 234 householder applications out of 2,227 determined, and 67 of 287 larger-householder prior approvals. Failing the permitted development limits and failing on planning merits are different things. |
| N6 | Highgate | Georgian villas, Victorian and Edwardian semis | N6 straddles a boundary: Highgate addresses fall to Camden Council or Haringey Council, so confirm which authority validates the permitted development scheme before submitting N6 drawings. |
What changes about a permitted development scheme in each part of Haringey?
This is a borough of terraces and flats rather than houses on plots. Of the homes sold here in 2025, 1,394 were flats and 839 terraced houses, against 122 semis and 33 detached (HM Land Registry Price Paid data, 2025 completions) — and permitted development rights do not apply to flats at all, which removes the route entirely for a large share of Haringey addresses before any question of design arises.
- Harringay Ladder (N4, N8) — the clearest permitted development case in the borough. Uniform Victorian two-up-two-downs, terraced almost without exception, so the loft allowance is the 40 cubic metre figure rather than 50, and a rear dormer kept below the ridge and 200mm back from the eaves is normally lawful without an application. The rung you are on matters more than the postcode: the Ladder’s streets are consistent enough that a case officer will look at what was allowed three doors down.
- Muswell Hill and Crouch End (N10, N8) — the roofs are steeper and the houses larger, but the conservation coverage is what decides it. Inside a designated area the property is article 2(3) land: Class B is switched off, so a dormer of any kind needs a householder application, and side extensions and two-storey rear extensions go with it. What survives is the rooflight under Class C, provided it stands no more than 150mm proud of the slope.
- Highgate (N6) — Georgian and early Victorian stock, and the borough’s densest concentration of statutory listing. Haringey holds 288 listed buildings, six of them Grade I and 21 Grade II* (Historic England, via the MHCLG Planning Data Platform, retrieved 2 September 2026). On a listed building permitted development is irrelevant: listed building consent is needed for works affecting character, internal as well as external, and it is a criminal offence to proceed without it.
- Tottenham and Wood Green (N15, N17, N22) — the most permissive part of the borough for houses and the least relevant for flats. Victorian and Edwardian terraces retain full rights outside the designated areas, but a large share of the housing here is flats and maisonettes, and permitted development applies only to houses in Class C3 use. For a flat, almost any external alteration is a full application.
- Stroud Green and Finsbury Park (N4) — check the authority before anything else. N4 straddles the Haringey, Islington and Hackney boundaries, and the three councils do not read rear extension depth the same way. The determining authority is set by where the property sits, not by the postcode on the letterhead.
Does Haringey planning policy restrict a permitted development scheme?
Does the policy make Haringey a hard borough? No, and the record is fairly emphatic about it. Haringey approved 1,993 of the 2,227 householder applications it decided in the three years to March 2026 — 89.5%, the seventh highest of the 32 boroughs the figure can be calculated for, against 83.0% across London (MHCLG planning application statistics, retrieved 1 September 2026). Where designation removes your permitted development right, the cost of that is a £548 householder application decided in eight weeks instead of a £274 certificate or a £249 prior approval. It is not usually the cost of a refusal.
What it does cost is time. Only 88.0% of Haringey’s householder decisions landed inside eight weeks, against 92.5% across London, and the council agreed an extension of time on 43.8% of everything it decided against a London figure of 34.5%. Read those together: this is a permissive authority with a slow clock, so the sensible plan is a generous programme rather than a defensive design.
The borough-wide Article 4 is about HMOs, not extensions. Converting a house to a small shared home needs full planning anywhere in Haringey. Converting a loft or building out the back does not lose a single right to it. One more thing worth knowing if a certificate application is refused: the Planning Inspectorate decided 37 lawful development certificate appeals from Haringey between 2016 and 2026 and allowed 18 of them. That is a thin sample and the rate should be read as roughly half rather than as a decimal, but it is enough to say that a refused certificate here is worth a second look rather than an automatic redesign.
Which neighbouring authorities border Haringey?
- Waltham Forest — the eastern boundary, through Walthamstow and the Lea Valley. It is a noticeably stricter authority on householder work: 77.1% approved over the three years to March 2026 against Haringey’s 89.5% (MHCLG planning application statistics, retrieved 1 September 2026). Twelve points is a real difference and it lands on the same kind of Victorian terrace on both sides of the line.
- Hackney — the south-eastern boundary below Stoke Newington. Hackney approved 81.3% over the same period. It is also a borough where almost nothing is permitted development, because so much of it is designated, so a scheme moved a few streets south often changes from a certificate into an application.
- Islington — the southern boundary at Finsbury Park and Highbury. Islington approved 90.9%, among the highest rates in London, but agreed an extension of time on 51.6% of everything it decided — more than half. Permissive and slow are not opposites.
- Camden — the western boundary at Highgate. Worth knowing before you plan a start date: Camden settled 73.8% of householder applications inside eight weeks, last of the 32 boroughs the measure can be calculated for, against Haringey’s 88.0%. On Highgate Hill the determining authority can change from one side of the road to the other.
Sources for this Haringey permitted development scheme page: borough policies maps and
conservation-area registers (2025–26), Royal Mail postcode district boundaries,
the Town and Country Planning (Fees for Applications) (England) Regulations, the Town
and Country Planning (General Permitted Development) (England) Order 2015 as amended,
and the Party Wall etc. Act 1996.
