HMO Planning Permission in Haringey: The 2026 Checklist
If you are a landlord or developer looking to convert a house into a House in Multiple Occupation (HMO) in Haringey, the first question is not "how do I get permission?" — it is "do I even need it?" In Haringey, the answer depends on two things: where the property sits, and how many people will live there. Get those two facts straight before you do anything else, because they decide the entire route.
First question: are you inside the Article 4 area?
Haringey has operated a Houses in Multiple Occupation Article 4 Direction since 30 November 2013. Unlike a borough-wide direction, Haringey's covers most of the east of the borough — not the whole of it. That single fact splits every HMO project in Haringey into one of three routes:
Inside the Article 4 area → converting a house to a small HMO (3–6 unrelated people, Use Class C4) requires full planning permission. Permitted development rights have been removed.
Outside the Article 4 area → a C3→C4 conversion is still permitted development (no planning application needed) — but don't stop reading. You should confirm that status with a Lawful Development Certificate (Proposed) before you buy, and you will still need an HMO licence to operate (see below). Article 4-free status can also be extended in future, so the window is not guaranteed.
Seven or more occupants (a "large" / sui generis HMO), anywhere in Haringey → this falls outside Class C4 and always requires planning permission, irrespective of the Article 4 boundary.
Because the boundary runs through the borough, the single most valuable first step is a desktop check of the exact address against Haringey's published Article 4 interactive map. A property one street from another can sit on the opposite side of the line — and that changes everything about cost, timescale and risk.
The policy framework — what your application is judged against
If your project needs planning permission (routes 1 and 3 above), it is assessed against four layers of policy at once.
1. The London Plan (2021).
The Mayor's strategic policies sit above the borough's:
Policy H9 (Ensuring the Best Use of Stock) — boroughs must take account of the role of HMOs in meeting housing need and generally protect HMOs of a reasonable standard.
Policy H8 (Loss of Existing Housing) — governs loss of existing homes and shared accommodation.
Policy D6 (Housing Quality and Standards) — the internal space and quality baseline.
Policy D12 (Fire Safety) — fire safety designed in from the outset.
As in any London borough, the London Plan's Policy H16 (Large-Scale Purpose-Built Shared Living) applies to co-living of 50+ units and is not the regime for a typical small HMO conversion.
2. Haringey's adopted Local Plan — Policy DM17.
This is the operative local policy. Haringey's HMO policy is Policy DM17 of the Development Management DPD, and it has a feature you will not find in most boroughs: it only permits the conversion of larger homes to HMOs where the gross original internal floor space of the dwelling is greater than 120 m². Below that threshold, a conversion is unlikely to be supported — so the size of the existing house is a gating feasibility question in Haringey. Where the 120 m² threshold is met, DM17 still requires that the conversion:
does not harm the surrounding neighbourhood, including cumulative impacts caused by too many HMOs in an area (Haringey's version of the "clustering" test — qualitative, not a fixed percentage);
is in an accessible location for public transport, cycling and walking;
provides high-quality accommodation meeting the Local Plan's internal space standards and amenity requirements; and
provides adequate refuse storage and collection in line with Appendix A3 of the Sustainable Design and Construction SPD.
(Note Haringey's own distinction: self-contained rooms with their own cooking and sanitary facilities are self-contained flats, not an HMO — a different policy and application route.)
3. Haringey's emerging new Local Plan — watch this space.
Haringey is preparing a new Local Plan that will eventually replace the current Strategic Policies and DM DPD. A Regulation 18 draft consultation ran 10 October–19 December 2025, with the Regulation 19 (Proposed Submission) stage expected around May–June 2026, examination later in 2026, and adoption targeted for early 2027. Until the new plan is adopted, DM17 remains the policy your application is determined under — but the HMO policy and its thresholds could change, so confirm the current position before you commit.
4. Haringey's HMO Standards and licensing.
Operating an HMO in Haringey needs an HMO licence as well as planning permission — they are separate consents and a licence carries no planning weight. Haringey publishes its own Standards for Houses in Multiple Occupation (December 2017) setting room sizes, kitchen and bathroom provision and heating — and these are higher than the national minimums (see the checklist below). It also runs an Additional HMO Licensing scheme (2024–2029) on top of mandatory licensing, with a current additional-licence fee of £1,360. Design to the Haringey standards from the start, not after approval.
The checklis
1. The location and size test (Article 4 + DM17)
Two gating checks before anything else: (a) confirm whether the address is inside or outside the Article 4 area; and (b) confirm the existing dwelling exceeds 120 m² gross internal floorspace, since DM17 only supports HMO conversion above that size. Then assess cumulative impact — whether the surrounding street already has a concentration of HMOs that would weigh against approval.
2. Internal space standards (Haringey HMO Standards)
Haringey applies its own HMO room-size standards, which are more demanding than the national minimums. Floor area is measured after deducting corridors, bath/shower rooms, WC compartments, chimney breasts and any space under a ceiling height below 1.5 m. The minimum letting sizes are:
One-person letting:10 m² where the kitchen is separate (shared or exclusive), or 13 m² where the room includes its own kitchen facilities.
Two-person letting:15 m² with a separate kitchen, or 20 m² where the room includes its own kitchen.
Households of three or more must be given self-contained units (with a separate or combined living room and kitchen); within those units, bedrooms must be at least 6.5 m² (single) and 10 m² (double).
No more than two people may sleep in one room, and people of opposite sex aged 10 or over who are not a couple cannot be required to share.
3. Kitchen, bathroom and heating provision (Haringey HMO Standards)
Kitchens: where facilities are shared, one set per a maximum of three lettings, and no unit more than one floor from a kitchen (unless a suitable dining room is provided within one floor). A shared set includes a four-burner cooker with oven and grill, a sink and drainer, a fridge/freezer, and at least 2,000 mm of worktop (or two 1,000 mm runs). Portable hotplates are not acceptable.
Bathrooms and WCs: at least one bath or shower and one WC per five occupiers where not exclusive, with a wash-hand basin per five; no unit more than one floor from a bathroom or WC.
Heating: fixed heating capable of 22°C in bathrooms, 21°C in living and sleeping rooms, and 18°C elsewhere, controllable by the tenant.
4. External requirements (DM17 + SDC SPD)
Refuse and recycling: adequate, well-designed storage in line with Appendix A3 of the Sustainable Design and Construction SPD, not harming the street scene.
Accessibility and parking: DM17 expects an accessible location; demonstrate the conversion won't cause parking stress (varies by PTAL) and provide secure, step-free cycle storage.
5. Management and safety (London Plan D12)
Where intensification is significant, submit a Fire Safety Strategy in line with London Plan Policy D12, designed to the current BS 9991:2024 code. Stack compatible rooms and provide adequate sound insulation; every habitable room needs natural light and an openable window.
6. Licensing (separate from planning)
Even where no planning permission is needed (outside the Article 4 area), you will still need an HMO licence. Budget for the Additional Licensing fee (£1,360) where applicable, plus mandatory licensing for larger HMOs, and remember the licence and the planning position are assessed independently.
Common pitfalls to avoid
Assuming Haringey is "all Article 4" or "all permitted development" — it is split, and the address decides which.
Overlooking the 120 m² DM17 threshold — a sub-120 m² house is a weak HMO candidate here.
Designing rooms to the national 6.51 m² minimum — Haringey requires 10 m²+ for a single letting.
Forgetting that 7+ occupants needs planning permission everywhere, even outside the Article 4 area.
Relying on permitted development without securing an LDC (Proposed) to prove it.
Treating the HMO licence as if it confirms planning — it does not.
Ignoring the cumulative-impact test where a street is already HMO-heavy.
Designing for compliance in Haringey
Haringey is the borough where the "where exactly is it?" question matters most: a split Article 4 boundary, a distinctive 120 m² floorspace threshold under DM17, a qualitative cumulative-impact test, and a new Local Plan moving through its stages that could reshape the HMO policy from 2027. The right first move is almost always a desktop check — Article 4 status, the 120 m² test, and the licensing position for the specific address — before any drawings are commissioned.
Bashkal specialises in residential conversions across London, and we handle Haringey HMO projects end to end — the in/out Article 4 and feasibility check, compliant drawings, planning statement and submission, and the licensing position alongside. If you are weighing up a Haringey property, contact us for a technical appraisal before you commit.
