HMO Licences in London: The Coliving Operator's Guide (2026)

A House in Multiple Occupation is a property rented by three or more people forming more than one household, sharing facilities like a kitchen or bathroom. A 'household' means a single person or members of one family — five friends sharing a house are five households; a couple is one. There is no coliving exemption: the word doesn't appear in the Housing Act 2004. In legal terms, a 20-room coliving house is a large HMO with good branding. Purpose-built blocks of fully self-contained studios can sit outside the classic definition, but the analysis is fact-specific — if anything is shared, assume HMO rules apply until a professional says otherwise.

The decision walkthrough runs in this order. First: five or more people from two or more households, sharing facilities, at least one paying rent? That's a 'large HMO' and mandatory licensing applies in every English council area — no exceptions, and licences are per property, so twelve houses means twelve licences.

Second: below five occupants, check whether the borough runs an 'additional licensing' scheme extending licensing to smaller HMOs of three or four sharers. Hackney's additional scheme, in force from 1 May 2026, captures most three-to-four-person HMOs borough-wide. Tower Hamlets has run borough-wide additional licensing for HMOs of three or more since April 2024. Westminster's renewed scheme covers shared homes of three or more people from two or more households across the whole city. Third: 'selective licensing' covers ordinary single-household rentals in designated areas — relevant if you hold mixed stock. For most London coliving operators the answer is blunt: you need a licence, probably one per property. The only question is which scheme and which fee.

Mandatory licensing is national. Everything else — additional and selective schemes, fee levels, amenity standards, portals, enforcement appetite — is decided borough by borough. London has 32 boroughs plus the City: up to 33 different rulebooks. Identical five-bed houses in Hackney and a neighbouring borough can face different fees, different room standards, and different renewal timetables for the same product.

The trap is that schemes change mid-tenancy. Designations run up to five years and are renewed, redrawn, or allowed to lapse. Hackney's new schemes came into force in May 2026; Westminster's renewed additional scheme takes effect 31 August 2026 and runs to 2031, with applications open from 1 June 2026; Tower Hamlets' selective scheme expires 30 September 2026 with no renewal announced at the time of writing. A portfolio fully compliant in January can contain an unlicensed property by June through nothing but inaction.

The operational answer: treat licensing as a live register — every property mapped to its borough, scheme, licence expiry, and the borough's consultation pipeline. Boroughs must consult publicly before designating new schemes, so changes are visible months ahead if someone is actually watching.

Fees vary widely, and most boroughs split payment into two parts (application processing, then licence issue). Current examples, verified August 2026: Tower Hamlets charges £977 for a mandatory HMO licence and £1,323 for an additional licence plus a £68.50 per-room surcharge, after fee rises from April 2026. Hackney charges £1,400 for a mandatory licence from April 2026 (£840 Part A plus £560 Part B), with the new additional licence also £1,400 — minus £100 for accredited landlords and at least £50 for EPC A–C properties.

Westminster charges £1,540 per application plus £68 for each letting above five, with a 10% accredited-landlord discount. Camden publishes its schedule on camden.gov.uk, with mandatory fees in the £1,300–£1,570 range depending on scheme year and application type, and a £100 accredited discount. As a planning number, £1,000–£1,600 per property per licence cycle is realistic — before the cost of any works the council requires as a condition.

Two caveats. Fees are set annually and the 2026 round saw sharp increases (Tower Hamlets' additional fee rose roughly 75%), so confirm the current figure on the borough's own site before budgeting. And the fee is per property, not per portfolio — at scale, licensing is a real line item, not a rounding error.

The mechanics are similar everywhere. First, gather documents: proof of ownership or management authority, a floor plan with room dimensions, a current gas safety certificate, an electrical installation condition report (EICR), fire alarm test certificates where fitted, and details of everyone in ownership and management. Second, complete the borough's online application and pay the first fee instalment. The applicant or manager must pass a 'fit and proper person' test covering criminal offences, discrimination law breaches, and past housing violations.

Third, wait. Many London boroughs carry significant backlogs, and months can pass between application and inspection. The critical protection: a valid, complete application gives you a defence — you can lawfully operate while a duly-made application is processed. Which is exactly why applying before residents move in is the whole game. Fourth, the council inspects, issues the licence with conditions, and the clock starts: a licence lasts a maximum of five years and must be renewed before expiry.

Treat anything under three months from application to issued licence as a good outcome in most boroughs. And if you acquire a property with residents in place, note that licences don't transfer between operators — a change of licence holder means a fresh application.

A licence is not just permission — it carries conditions, and breaching them is itself an offence. National mandatory conditions include annual gas safety certificates, working smoke alarms, electrical certificates on demand, and compliance with the council's waste scheme. Boroughs layer on their own: fire door specifications, amenity ratios (residents per kitchen, bathroom and WC), management standards, sometimes required works on a deadline.

The condition that bites coliving hardest is room size. Since October 2018, national mandatory conditions set minimum sleeping-room floor areas: 6.51 square metres for one person aged over 10, 10.22 square metres for two, and 4.64 square metres for a child under 10 — any room under 4.64 square metres cannot be used for sleeping at all. Floor area under a ceiling height below 1.5 metres doesn't count, which matters enormously in loft conversions. The licence caps occupants per room and per property; exceeding it is a breach.

Design implication: measure before you model. A 'six-bed' house with one 6.2-square-metre room is a five-bed house in licensing terms, and boroughs can apply their own space standards above the national floor. Build your revenue model on licensable rooms, not doors.

Licensing is housing law; planning is a separate regime, and this is where conversion projects die. Normally, changing an ordinary dwelling (Use Class C3) into a small HMO for three to six sharers (Use Class C4) is permitted development — no planning application needed. An Article 4 direction removes exactly that right for a defined area, so a C3-to-C4 conversion needs full planning permission, which the council may refuse on grounds like 'concentration of HMOs'.

As of 2026, at least 22 London boroughs have Article 4 directions covering HMO conversions — some borough-wide (including Tower Hamlets, Newham and Barnet), others ward-specific. The trap sequence we see repeatedly: an operator buys a family house in an Article 4 area, budgets refurbishment and a licence, then discovers the planning layer. Licence and planning permission are independent — a council can grant an HMO licence for a property that is simultaneously in breach of planning control, and enforce on the planning side later. Holding one does not protect you on the other.

Above six sharers is a different problem again: large HMOs fall into 'sui generis' use, which always needs planning permission, everywhere. Before any acquisition, check the borough's Article 4 map and the property's lawful use — a one-hour check that prevents six-figure mistakes.

Operating a licensable HMO without a licence is a criminal offence carrying an unlimited fine on prosecution. As an alternative, councils can impose civil penalties of up to £30,000 per offence under the Housing Act 2004 — with the Renters' Rights Act 2025 raising the ceiling for serious and repeat breaches, including licensing failures, to £40,000 as its provisions come into force. Then come rent repayment orders: residents or the council can apply to the First-tier Tribunal to claw back rent paid while unlicensed — historically up to 12 months, extended to up to two years for offences from May 2026. For a 20-room property, two years of rent is catastrophic. Add banning orders for repeat offenders, the rogue landlord database, failing the fit-and-proper test elsewhere, and invalid section 21 notices while unlicensed — the economics are unambiguous. A licence costs roughly £1,000–£1,600; not having one puts the property's entire revenue plus penalties on the table.

In our experience the operators who get caught are rarely villains — they're operators who assumed a three-person flat didn't need a licence and never checked the borough's additional scheme. The defence is a calendar, not expertise. Annually: renew gas certificates, test fire systems, and review each borough's fee and scheme announcements (changes cluster around April). Every five years, diarised from issue date: renew each licence and EICR, and re-verify occupancy against permitted numbers. Quarterly: scan for new designations and Article 4 consultations in every borough where you hold or plan stock. On every resident change: confirm the new headcount doesn't tip a property across a licensing threshold — a fourth sharer joining a three-person house in an additional-licensing borough is a compliance event, not just a lettings win.

And on every acquisition: borough scheme check, Article 4 map check, existing licence check, room-size survey. Coliving's edge over amateur HMO landlords is precisely this — running compliance as a system rather than a memory. The rules are manageable for an operator who tracks them and ruinous for one who doesn't. Verify current requirements with each borough before acting on anything above, and take legal advice where real money is attached.