A small HMO is a shared house for three to six unrelated people. For a house in Carshalton 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
- CR4, SM5 and SM6
- Location
- 10 miles south of London
- Pricing region
- London
What do small HMO conversions (3–6 sharers) in Carshalton involve?
- Kitchen enlarged or refitted for the number of sharers
- Interlinked smoke and heat detection
- Fire doors to rooms off the escape route
- Room-by-room size check before any work starts
- Locks, door closers and thumb-turn locks on the exit route
Which rules apply in Carshalton?
Here is what usually applies to a Carshalton job of this kind. It is general information rather than legal advice, and the council’s written HMO standards have the final detail.
- Under the Renters’ Rights Act, civil penalties reach £40,000 for offences such as running an unlicensed HMO.
- Floor area under a ceiling lower than 1.5 m does not count towards the room size, and many councils set larger sizes.
- National rules ask for an adequate number of bathrooms, WCs and basins and suitably located kitchens; numeric ratios are set by each council.
- 7 or more sharers is a sui generis large HMO and normally needs planning permission.
How much do small HMO conversions (3–6 sharers) cost in Carshalton?
| 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 |
Prices in Carshalton 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?
Typical time on site: 4–10 weeks. We agree the programme with you before starting and send photo updates as the work progresses.
When do Carshalton landlords need it?
Landlords in Carshalton most often ask us for this when:
- You want a three to six sharer layout that fits the local planning rules
- An existing small HMO needs bringing up to date
Questions about small HMO conversions (3–6 sharers) in Carshalton
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 Carshalton?
Yes. We work across Carshalton and the CR4, SM5 and SM6 postcode areas, plus the rest of Greater London. Nearby places we also cover include Wallington, Sutton, Mitcham.
Where do I check the HMO rules for an address in Carshalton?
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 Carshalton?
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 Carshalton
- Wallington · 1 mi
- Sutton · 2 mi
- Mitcham · 2 mi
- Morden · 2 mi
- Croydon · 3 mi
- South Croydon · 3 mi
- All of Greater London
Other HMO services in Carshalton
- House to HMO conversion in Carshalton
- Ensuite installation in Carshalton
- Fire alarm and detection systems in Carshalton
- Communal kitchen refits in Carshalton
- Fire doors in Carshalton
- Licence condition and schedule-of-works in Carshalton
- Commercial and above-shop to HMO in Carshalton
- Damp, mould and HHSRS repairs in Carshalton