A small HMO is a shared house for three to six unrelated people. Southampton is 43 miles south-west of Reading. We price small HMO conversions (3–6 sharers) there against England’s HMO rules and the council’s written HMO standards, so work is planned to the standard an inspection looks for. With students as well as working sharers renting in Southampton, we plan bigger jobs for the gap between academic-year tenancies where we can.
- Area
- Hampshire, England
- Postcodes
- SO14 and SO15
- Location
- 43 miles south-west of Reading
- Council
- Southampton City Council
- Pricing region
- South East
What do small HMO conversions (3–6 sharers) in Southampton involve?
- Kitchen enlarged or refitted for the number of sharers
- Interlinked smoke and heat detection
- Second bathroom, shower room or ensuites
- Decoration and durable flooring
- Electrical upgrades and certificate
Which rules apply in Southampton?
Small HMO conversions (3–6 sharers) in Southampton 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:
- Licences last up to 5 years and carry conditions on gas and electrical safety, alarms, room sizes and waste.
- 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.
- 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.
Southampton City Council: local HMO schemes
| Article 4 (HMO) | In force across the council area City-wide Article 4 Direction (C3 to C4) adopted 23 Mar 2012. |
|---|---|
| Additional licensing | In force in part of the council area Additional licensing in nine wards (Banister & Polygon, Bargate, Bassett, Bevois, Freemantle, Millbrook, Portswood, Shirley, Swaythling) 1 Oct 2025-30 Sep 2030. |
| Selective licensing | No scheme found |
Schemes change. Check the council’s current pages for the exact address in Southampton before you buy or start work. Source: Southampton City Council HMO licensing page, checked 2026-10-31.
How much do small HMO conversions (3–6 sharers) cost in Southampton?
| 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 Southampton 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 Southampton, 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 Southampton.
When do Southampton landlords need it?
Typical reasons for this work in Southampton:
- A three or four-bedroom house you want to let to sharers
- You want a three to six sharer layout that fits the local planning rules
Questions about small HMO conversions (3–6 sharers) in Southampton
How many bathrooms does a small HMO need?
National rules in England say amenities must be adequate for the number of sharers, and councils set the numbers: often a bathroom plus a separate WC at five people and a second bathroom from six. We work to the figure your council publishes.
How far do you travel from Southampton?
We cover the whole of Hampshire and work UK-wide. For Southampton the nearest towns on our list are Hythe (3 miles), Totton (4 miles), Eastleigh (5 miles).
Which council covers HMOs in Southampton?
Southampton is covered by Southampton 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 Southampton?
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 Southampton
- Hythe · 3 mi
- Totton · 4 mi
- Eastleigh · 5 mi
- Fareham · 10 mi
- Cowes · 11 mi
- Winchester · 12 mi
- All of Hampshire
Other HMO services in Southampton
- House to HMO conversion in Southampton
- Ensuite installation in Southampton
- Fire alarm and detection systems in Southampton
- Communal kitchen refits in Southampton
- Fire doors in Southampton
- Licence condition and schedule-of-works in Southampton
- Damp, mould and HHSRS repairs in Southampton
- Void and between-tenancy refurbs in Southampton