A small HMO is a shared house for three to six unrelated people. Landlords in Brighton (BN1, BN2 and BN3) usually come to us with a council letter, a fire risk assessment or a house they have just bought. We price from whichever you have. Brighton has a university population, so many shared houses are let to students on yearly tenancies, and summer is the main window for works.
- Area
- East Sussex, England
- Postcodes
- BN1, BN2 and BN3
- Location
- 47 miles south of London
- Council
- Brighton & Hove City Council
- Pricing region
- South East
What do small HMO conversions (3–6 sharers) in Brighton involve?
- Fire doors to rooms off the escape route
- Electrical upgrades and certificate
- Interlinked smoke and heat detection
- Locks, door closers and thumb-turn locks on the exit route
- Second bathroom, shower room or ensuites
Which rules apply in Brighton?
Small HMO conversions (3–6 sharers) in Brighton must satisfy national law for England, the council’s written HMO standards and, where walls, drainage or fire separation change, the building rules. In short:
- Mandatory HMO licence for 5 or more people in 2 or more households (since October 2018); councils can add additional licensing for smaller HMOs.
- Licensed HMOs must meet national minimum bedroom sizes: 6.51 m² for one person aged 10 or over, 10.22 m² for two, and 4.64 m² for a child under 10.
- Council standards often step up at 5 and 6 sharers, for example a separate WC at 5 and a second bathroom from 6.
- 7 or more sharers is a sui generis large HMO and normally needs planning permission.
Brighton & Hove City Council: local HMO schemes
| Article 4 (HMO) | In force across the council area City-wide C3-C4 Article 4 Direction confirmed Jan 2020 and in force June 2020 (replaced the 2013 five-ward direction). |
|---|---|
| Additional licensing | In force across the council area Additional licensing across all 23 wards 1 Jul 2024-30 Jun 2029. |
| Selective licensing | In force in part of the council area Kemptown, Moulsecoomb & Bevendean, Queen's Park, Whitehawk & Marina 2 Sep 2024-1 Sep 2029. Central Hove & Regency designation (made 6 Jul 2026, due 20 Oct 2026) is paused pending a legal challenge. |
Schemes change. Check the council’s current pages for the exact address in Brighton before you buy or start work. Source: Brighton & Hove City Council HMO licensing page, checked 2026-10-31.
How much do small HMO conversions (3–6 sharers) cost in Brighton?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Typical 3–4 bed house to a 5–6 bed HMO, all-in | £30,000 – £75,000 | £33,600 – £84,000 | project |
| Conversion works per letting room (walls, linings, electrics, decoration; excludes kitchens, bathrooms and fire systems; our estimate) | £3,500 – £6,500 | £3,900 – £7,300 | letting room |
| Shared bathroom refit | £5,500 – £9,000 | £6,150 – £10,100 | bathroom |
| Interlinked mains alarm system (Grade D type), small HMO (our estimate from installer guides) | £800 – £2,000 | £900 – £2,250 | house |
| FD30S fire door leaf into an existing frame, with seals, closer and hinges, fitted | £300 – £600 | £340 – £670 | door |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Brighton can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Most jobs of this kind take 4–10 weeks. If a council deadline applies in Brighton, tell us at the first call so the programme is built around it.
If the house is let to students, we work backwards from the next tenancy start date in Brighton.
When do Brighton landlords need it?
Typical reasons for this work in Brighton:
- You want a three to six sharer layout that fits the local planning rules
- A three or four-bedroom house you want to let to sharers
Questions about small HMO conversions (3–6 sharers) in Brighton
What is the smallest room I can let?
In a licensed HMO in England, a room for one person aged 10 or over must be at least 6.51 square metres, not counting floor under a ceiling lower than 1.5 metres. Councils can set larger sizes, and Wales, Scotland and Northern Ireland have their own standards. We measure every room before you commit to a layout.
Do you cover all of Brighton?
Yes. We work across Brighton and the BN1, BN2 and BN3 postcode areas, plus the rest of East Sussex. Nearby places we also cover include Hove, Portslade, Rottingdean.
Which council covers HMOs in Brighton?
Brighton is covered by Brighton & Hove City Council. We read the council’s written HMO standards before pricing, and you should check the licence position for the exact address.
How much do small HMO conversions (3–6 sharers) cost in Brighton?
Our guide ranges for South East are in the table on this page, and the guide-price tool gives a figure for your house. A fixed written quote follows a free site visit.
Small HMO conversions (3–6 sharers) near Brighton
- Hove · 1 mi
- Portslade · 3 mi
- Rottingdean · 4 mi
- Burgess Hill · 9 mi
- Worthing · 10 mi
- Seaford · 11 mi
- All of East Sussex
Other HMO services in Brighton
- House to HMO conversion in Brighton
- Ensuite installation in Brighton
- Fire alarm and detection systems in Brighton
- Communal kitchen refits in Brighton
- Fire doors in Brighton
- Licence condition and schedule-of-works in Brighton
- Loft conversions for extra rooms in Brighton
- Large HMO conversions (7+ sharers) in Brighton