A small HMO is a shared house for three to six unrelated people. In City of Westminster, a place of roughly 250,000 people in Greater London, the work is planned around the HMO rules for England and the council’s written HMO standards.
- Area
- Greater London, England
- Postcodes
- SW1 and W2
- Location
- 1 miles south-west of London
- Pricing region
- London
What do small HMO conversions (3–6 sharers) in City of Westminster involve?
- Interlinked smoke and heat detection
- Kitchen enlarged or refitted for the number of sharers
- Locks, door closers and thumb-turn locks on the exit route
- Decoration and durable flooring
- Second bathroom, shower room or ensuites
Which rules apply in City of Westminster?
The rules below are the England-wide position for this kind of work. Councils add their own standards and schemes on top, so we always check the address in City of Westminster before we price.
- Under the Renters’ Rights Act, civil penalties reach £40,000 for offences such as running an unlicensed HMO.
- 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.
- 3–6 unrelated sharers is use class C4; changing from a family house is usually permitted development unless an Article 4 direction applies.
How much do small HMO conversions (3–6 sharers) cost in City of Westminster?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Typical 3–4 bed house to a 5–6 bed HMO, all-in | £30,000 – £75,000 | £38,400 – £96,000 | project |
| Conversion works per letting room (walls, linings, electrics, decoration; excludes kitchens, bathrooms and fire systems; our estimate) | £3,500 – £6,500 | £4,500 – £8,300 | letting room |
| Shared bathroom refit | £5,500 – £9,000 | £7,050 – £11,500 | bathroom |
| Interlinked mains alarm system (Grade D type), small HMO (our estimate from installer guides) | £800 – £2,000 | £1,000 – £2,550 | house |
| FD30S fire door leaf into an existing frame, with seals, closer and hinges, fitted | £300 – £600 | £380 – £770 | door |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in City of Westminster 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 City of Westminster, tell us at the first call so the programme is built around it.
When do City of Westminster landlords need it?
Landlords in City of Westminster most often ask us for this when:
- An existing small HMO needs bringing up to date
- A three or four-bedroom house you want to let to sharers
Questions about small HMO conversions (3–6 sharers) in City of Westminster
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 City of Westminster?
Yes. We work across City of Westminster and the SW1 and W2 postcode areas, plus the rest of Greater London. Nearby places we also cover include Pimlico, London, Chelsea.
Where do I check the HMO rules for an address in City of Westminster?
With the local council for the address. Councils in England can add additional licensing and Article 4 directions on top of the national rules. Check the council’s website for the exact address before you buy or start work.
How much do small HMO conversions (3–6 sharers) cost in City of Westminster?
Our guide ranges for London 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 City of Westminster
- Pimlico · 1 mi
- London · 1 mi
- Chelsea · 2 mi
- Battersea · 2 mi
- Brixton · 3 mi
- Fulham · 3 mi
- All of Greater London
Other HMO services in City of Westminster
- House to HMO conversion in City of Westminster
- Ensuite installation in City of Westminster
- Fire alarm and detection systems in City of Westminster
- Communal kitchen refits in City of Westminster
- Fire doors in City of Westminster
- Licence condition and schedule-of-works in City of Westminster
- Professional and co-living HMO refurbs in City of Westminster
- Bedroom upgrades and room refits in City of Westminster