A small HMO is a shared house for three to six unrelated people. In Harrow, a place of roughly 150,000 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
- HA1, HA2 and HA3
- Location
- 10 miles north-west of London
- Pricing region
- London
What do small HMO conversions (3–6 sharers) in Harrow involve?
- Fire doors to rooms off the escape route
- Electrical upgrades and certificate
- Locks, door closers and thumb-turn locks on the exit route
- Kitchen enlarged or refitted for the number of sharers
- Decoration and durable flooring
Which rules apply in Harrow?
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 Harrow before we price.
- Licences last up to 5 years and carry conditions on gas and electrical safety, alarms, room sizes and waste.
- Floor area under a ceiling lower than 1.5 m does not count towards the room size, and many councils set larger sizes.
- 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 Harrow?
| 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 |
These are typical ranges including VAT, adjusted for London, where costs run above the UK average. The fixed price for a house in Harrow follows a site visit.
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 Harrow landlords need it?
We usually get the call 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 Harrow
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 Harrow?
Yes. We work across Harrow and the HA1, HA2 and HA3 postcode areas, plus the rest of Greater London. Nearby places we also cover include Brent, Wembley, Northolt.
Does a shared house in Harrow 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 small HMO conversions (3–6 sharers) cost in Harrow?
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 Harrow
- Brent · 2 mi
- Wembley · 2 mi
- Northolt · 3 mi
- Greenford · 4 mi
- Ruislip · 4 mi
- Bushey · 5 mi
- All of Greater London