An HMO loft conversion adds one or two letting rooms, often with an ensuite, in the roof space. Southall is 11 miles west of London. We price loft conversions for extra rooms there against England’s HMO rules and the council’s written HMO standards, so work is planned to the standard an inspection looks for.
- Area
- Greater London, England
- Postcodes
- UB1, UB2, UB6 and UB18
- Location
- 11 miles west of London
- Council
- London Borough of Ealing
- Pricing region
- London
What do loft conversions for extra rooms in Southall involve?
- Structural design and steelwork
- Ensuite where space allows
- Feasibility and head-height check
- Building control sign-off
- New stair within the protected route
Which rules apply in Southall?
Loft conversions for extra rooms in Southall 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:
- 3–6 unrelated sharers is use class C4; changing from a family house is usually permitted development unless an Article 4 direction applies.
- Building regulations cover structural changes, new partitions, ensuite drainage, fire-resisting construction and notifiable electrical work.
- The Fire Safety Order 2005 applies to the common parts of HMOs, enforced by the fire and rescue authority.
- 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.
London Borough of Ealing: local HMO schemes
| Article 4 (HMO) | In force across the council area Immediate direction for Perivale from 30 Oct 2024 and non-immediate direction for the rest of the borough from 2025. |
|---|---|
| Additional licensing | In force across the council area Borough-wide additional licensing 1 Apr 2022-31 Mar 2027; renewal consulted 15 Jul-24 Sep 2026. |
| Selective licensing | In force in part of the council area Two designations covering most wards: 1 Apr 2022-31 Mar 2027 (e.g. Southall, East/North Acton) and 3 Jan 2023-2 Jan 2028 (e.g. Greenford, Northolt, Perivale, Ealing Common). |
Schemes change. Check the council’s current pages for the exact address in Southall before you buy or start work. Source: London Borough of Ealing HMO licensing page, checked 2026-10-31.
How much do loft conversions for extra rooms cost in Southall?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Dormer loft conversion, about 30 m² | £40,000 – £60,000 | £51,200 – £76,800 | project |
| Rooflight loft conversion, about 30 m² | £22,500 – £30,000 | £28,800 – £38,400 | project |
These are typical ranges including VAT, adjusted for London, where costs run above the UK average. The fixed price for a house in Southall follows a site visit.
How long does it take?
Most jobs of this kind take 6–10 weeks. If a council deadline applies in Southall, tell us at the first call so the programme is built around it.
When do Southall landlords need it?
We usually get the call when:
- A house with usable roof space
- Moving to a larger HMO with the right consents
Questions about loft conversions for extra rooms in Southall
Does a loft room need a fire escape window?
In an HMO the main protection is usually a protected stair and fire doors. The building regulations and fire strategy decide the detail.
Which postcodes in Southall do you work in?
All of them, including UB1, UB2, UB6 and UB18, and the surrounding parts of Greater London.
Which council covers HMOs in Southall?
Southall is covered by London Borough of Ealing. We read the council’s written HMO standards before pricing, and you should check the licence position for the exact address.
How much do loft conversions for extra rooms cost in Southall?
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.
Loft conversions for extra rooms near Southall
- Greenford · 2 mi
- Heston · 2 mi
- Hayes · 2 mi
- Isleworth · 3 mi
- Northolt · 3 mi
- Hounslow · 3 mi
- All of Greater London
Other HMO services in Southall
- Extensions for extra rooms in Southall
- Large HMO conversions (7+ sharers) in Southall
- Escape routes, emergency lighting and fire stopping in Southall
- Ensuite installation in Southall
- Layout changes and room reconfiguration in Southall
- Fire alarm and detection systems in Southall
- Sound insulation in Southall
- EPC and energy upgrades in Southall