A large HMO is a shared house for seven or more people. For a house in City of Westminster we start with a measured survey, check the council’s written HMO standards for the number of sharers, and then price each item separately.
- Area
- Greater London, England
- Postcodes
- SW1 and W2
- Location
- 1 miles south-west of London
- Pricing region
- London
What do large HMO conversions (7+ sharers) in City of Westminster involve?
- Feasibility review and measured survey
- Sound insulation between rooms and floors
- Ensuites or extra bathrooms
- Fire alarm and detection system sized for the building
- Emergency lighting where the escape route needs it
Which rules apply in City of Westminster?
Large HMO conversions (7+ sharers) in City of Westminster 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:
- 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 large HMO conversions (7+ sharers) cost in City of Westminster?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| 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 |
| Panel alarm system (Grade A type), larger HMO | £1,750 – £4,500 | £2,250 – £5,750 | house |
| Protected route upgrades: fire-resisting linings, fire stopping, lighting (three-storey house, our estimate) | £2,000 – £6,000 | £2,550 – £7,700 | house |
| Ensuite shower room added to a bedroom | £4,000 – £10,000 | £5,100 – £12,800 | ensuite |
| Communal HMO kitchen with extra cooking and sink capacity (our estimate from domestic ranges) | £8,000 – £18,000 | £10,250 – £23,050 | kitchen |
Prices in City of Westminster are shown with our regional adjustment for London (above the UK average). Your quote is itemised and fixed in writing once the scope and specification are agreed.
How long does it take?
Most jobs of this kind take 10–20 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:
- A large house, three or more storeys, or a building with lots of rooms
- You have planning in place, or want to apply
Questions about large HMO conversions (7+ sharers) in City of Westminster
Does a seven-bed HMO need planning permission?
In England, normally yes: seven or more unrelated sharers is a sui generis use outside class C4. Wales and Northern Ireland require permission for new HMOs anyway, and in Scotland more than five residents falls outside the houses class. Councils also apply concentration policies, so we check the address first.
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.
Does a shared house in City of Westminster need an HMO licence?
In England, a mandatory licence is needed for 5 or more people from 2 or more households. Smaller HMOs can need a licence where the council runs additional licensing, which is common in towns with many shared houses. Check the council’s website for the address.
How much do large HMO conversions (7+ 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.
Large HMO conversions (7+ 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
- Escape routes, emergency lighting and fire stopping in City of Westminster
- Fire alarm and detection systems in City of Westminster
- Sound insulation in City of Westminster
- Loft conversions for extra rooms in City of Westminster
- Extensions for extra rooms in City of Westminster
- Student HMO refurbishment in City of Westminster
- EPC and energy upgrades in City of Westminster