London HMO & Selective Licensing Floor Plan Requirements (2026 Landlord Guide)
Everything London landlords and letting agents must include on a scaled floor plan for Mandatory HMO, Additional HMO, and Selective Licensing applications — plus how the Renters' Rights Act 2026 affects compliance.
Every London borough council requires a scaled floor plan showing room designations, wall-to-wall dimensions, and usable floor area in square metres (sq m) before approving a Mandatory HMO, Additional HMO, or Selective property licence (where £700–£1,650+ in council licence fees are at stake). Standard estate-agent sales plans often fail council checks because they include en-suite shower pods, chimney breasts, or loft eaves under 1.5m head height. ZM Studio provides standalone laser-measured floor plans at £94 per property (plus optional +£40 HMO & Licensing Safety Annotations) with £0 travel fee across North & NE London and same-day or next-day delivery.
In This Guide
- 1.Why London Councils Reject Standard Estate Agent Floor Plans
- 2.Statutory Minimum HMO Bedroom Sizes (Housing Act 2004 & 2018 Regulations)
- 3.Borough-by-Borough Variations Across North & East London
- 4.The 6 Elements Every Licensing Floor Plan Must Show
- 5.How the Renters' Rights Act (May 2026) Increases Floor Plan Scrutiny
- 6.Booking a Standalone HMO Floor Plan with ZM Studio
Why London Councils Reject Standard Estate Agent Floor Plans
When applying for or renewing a Mandatory HMO, Additional HMO, or Selective Licence through a London borough portal — with £700 to £1,650+ in council licence fees at stake — one of the most common causes of Requests for Further Information (RFIs) or reduced maximum occupancy numbers is an inaccurate floor plan. Old estate-agent marketing plans are drafted to make a property look as large as possible for buyers. Licensing enforcement officers do the opposite: they audit net usable habitable floor area in square metres (sq m). If your floor plan only shows imperial feet/inches, includes an en-suite bathroom inside the bedroom's dimensions, or fails to mark pitched loft eaves below 1.5 metres, the council can delay your application or cap occupancy.
- ●Square Metres Are Mandatory: All London council licensing forms require room areas in metric square metres (sq m) to two decimal places.
- ●En-Suites Must Be Excluded: An internal en-suite shower/WC pod does not count toward minimum sleeping room area.
- ●The 1.5m Headroom Rule: Floor space under sloped roofs or dormers where ceiling height drops below 1.5m (1,500mm) must be excluded from usable sleeping area.
- ●Chimney Breasts & Narrow Corridors: Deep alcoves or narrow door-swing lobbies behind bedroom doors are discounted by boroughs like Camden, Barnet, and Hackney.
Statutory Minimum HMO Bedroom Sizes (Housing Act 2004 & 2018 Regulations)
Under the Licensing of Houses in Multiple Occupation (Mandatory Conditions of Licences) (England) Regulations 2018, every council in England must enforce the following absolute statutory minimum sleeping room sizes. No council can license a room smaller than these thresholds, and any room under 4.64 sq m is legally prohibited from being used as sleeping accommodation:
| Occupant Category | Statutory Minimum Usable Area | Typical London Council Requirement (No Shared Lounge) |
|---|---|---|
| 1 Person (aged 10 or over) | 6.51 sq m (70 sq ft) | 8.0 sq m – 10.0 sq m (depending on borough) |
| 2 Persons (aged 10 or over) | 10.22 sq m (110 sq ft) | 11.0 sq m – 15.0 sq m (depending on borough) |
| 1 Child (under 10 years) | 4.64 sq m (50 sq ft) | 4.64 sq m – 6.51 sq m |
| Any room below 4.64 sq m | Prohibited as a bedroom | Must be labelled as Study / Storage / Box Room |
💡The '6.51 sq m' Box Room Trap
A 10 cm measuring error on a 2.5m × 2.6m box bedroom is the difference between 6.50 sq m (illegal for an adult tenant) and 6.51 sq m (compliant). That is why ZM Studio's experienced surveyors use laser-accurate measurement on site rather than phone-camera LiDAR scanning apps.
Borough-by-Borough Variations Across North & East London
While 6.51 sq m is the national floor, London boroughs apply their own local HMO standards — especially when a front living room has been converted into an extra bedroom, leaving tenants with only a kitchen and no separate communal lounge:
| London Borough | Active Licensing Schemes | Single Bedroom Min | Double Bedroom Min | Key Local Rule |
|---|---|---|---|---|
| Haringey (N4, N8, N10, N15, N17, N22) | Mandatory HMO, Additional HMO & Selective | 6.51 sq m (10 sq m bedsit) | 10.22 sq m (15 sq m bedsit) | Strict loft <1.5m eaves & kitchen size checks |
| Enfield (N18, N9, N13, N14, EN1, EN2) | Mandatory HMO, Additional HMO & Selective | 6.51 sq m usable | 10.22 sq m usable | 1930s box rooms & garden outbuildings audited |
| Waltham Forest (E17, E10, E11) | Mandatory HMO, Additional HMO & Borough Selective | 6.51 sq m (10 sq m no lounge) | 10.22 sq m (15 sq m no lounge) | All Selective & HMO apps require sq m room sizes |
| Camden (NW1, NW3, NW5, NW6, WC1) | Mandatory HMO & Borough-Wide Additional HMO | 7.1 sq m (or 9.0 sq m no lounge) | 10.2 sq m (or 11.0 sq m no lounge) | Two-tier Standard A/B based on ≥10 sq m lounge |
| Islington (N1, N5, N7, N19, EC1) | Mandatory HMO, Additional HMO & Selective | 8.0 sq m (12.0 sq m bedsit) | 11.0 sq m (15.0 sq m bedsit) | Higher 8 sq m single baseline across the borough |
| Barnet (N2, N3, N12, N20, NW4, NW7, NW11) | Mandatory HMO & Borough-Wide Additional HMO | 6.51 sq m (10 sq m bedsit) | 10.22 sq m (15 sq m bedsit) | Strict room shape & usable furniture layout check |
| Hackney (E8, E9, E2, N16) | Mandatory HMO, Additional HMO & Selective | 6.51 sq m net usable | 10.22 sq m net usable | En-suite pods strictly stripped from bedroom sq m |
The 6 Elements Every Licensing Floor Plan Must Show
When ZM Studio's experienced surveyor measures a property for a landlord, letting agent, or HMO licence holder, our 2D floor plans are drawn to RICS Code of Measuring Practice (6th Edition) standards (for property marketing and council licensing compliance, not structural/architectural blueprints) and include:
- ●1. Full Property Address & Storey Breakdown: Ground floor, first floor, basement, and loft levels clearly separated.
- ●2. Room Designations: Explicit labels (Bedroom 1, Bedroom 2, Shared Kitchen, Communal Lounge, Bathroom, WC, Storage).
- ●3. Dual Metric & Imperial Dimensions: Length × width and total Gross Internal Area (GIA) in both square metres (sq m) and square feet (sq ft).
- ●4. Restricted Headroom Dashed Lines: Clear demarcation of any loft or under-stair area below 1.5m ceiling height.
- ●5. Fixed Kitchen & Sanitary Amenities: Sinks, hobs/cookers, baths, showers, and WCs drawn in position.
- ●6. Doors, Stairs & Optional Fire Safety Annotations (+£40): Accurate door swings, hallways, and optional HMO safety symbols (smoke/heat detectors, FD30 fire doors, emergency lighting, fire blankets & escape routes).
How the Renters' Rights Act (May 2026) Increases Floor Plan Scrutiny
With Phase 1 of the Renters' Rights Act in force from May 2026, local council enforcement powers, civil penalties (up to £40,000 per breach), and Rent Repayment Orders (up to 24 months' rent) have been strengthened alongside the rollout of the Private Rented Sector Database. Booking a standalone laser-measured floor plan (£94 flat rate per property, plus optional +£40 HMO & Licensing Safety Annotations) gives you a permanent, dated PDF and high-resolution layout stored in your ZM Studio client portal — ready for council licensing portals, fire risk assessments, and incoming periodic tenancy packs.
Frequently Asked Questions
Can I book a floor plan on its own for an HMO or Selective Licence application?
Yes. You do not need to book photography to book a floor plan. On our online booking form, select Floor Plan only (£94 fixed flat rate per property, optional +£40 for HMO fire safety annotations, no per-bedroom surcharges) and our experienced surveyor will measure the property on site and deliver the plan the same day or the next day.
Do your floor plans show room areas in square metres (sq m) for council portals?
Yes. Every ZM Studio floor plan includes room dimensions and Gross Internal Area (GIA) in both metric (sq m) and imperial (sq ft), with en-suites separated and <1.5m loft eaves clearly marked.
Is there an extra charge for a 5-bedroom or 6-bedroom HMO?
No. Unlike providers that charge per bedroom or per floor, ZM Studio charges a single fixed flat rate of £94 per standard residential property (plus +£40 if you select HMO & Licensing Safety Annotations), with £0 travel charge across our core North, North-West, and North-East London postcodes.
Written by Zosim
Founder & Lead Property Photographer
Founder of ZM Studio, a North London property media studio providing laser-accurate HMO compliance floor plans, HDR photography, and 4K 360° virtual tours.
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Need a council-ready floor plan for your HMO or property licence?
Request an on-site visit in about a minute. Fixed flat rate per property — human-measured on site with laser-accurate equipment, digitally drawn to scale in sq m & sq ft, and delivered the same day or the next day (with optional +£40 HMO fire safety annotations).