An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Landlords in Battersea (SW8 and SW11) usually come to us with a council letter, a fire risk assessment or a house they have just bought. We price from whichever you have.
- Area
- Greater London, England
- Postcodes
- SW8 and SW11
- Location
- 3 miles south-west of London
- Pricing region
- London
What do extensions for extra rooms in Battersea involve?
- Building control completion
- Heating, insulation and glazing
- Foundations, structure and roof
- Party wall coordination where needed
- Planning route check and drawings
Which rules apply in Battersea?
Here is what usually applies to a Battersea job of this kind. It is general information rather than legal advice, and the council’s written HMO standards have the final detail.
- 7 or more sharers is a sui generis large HMO and normally needs planning permission.
- A conversion can be a material change of use under the building regulations, so confirm with building control before work starts.
- The Fire Safety Order 2005 applies to the common parts of HMOs, enforced by the fire and rescue authority.
- National rules ask for an adequate number of bathrooms, WCs and basins and suitably located kitchens; numeric ratios are set by each council.
How much do extensions for extra rooms cost in Battersea?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £44,800 – £76,800 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £2,300 – £5,100 | m² |
Prices in Battersea 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 8–14 weeks. If a council deadline applies in Battersea, tell us at the first call so the programme is built around it.
When do Battersea landlords need it?
Typical reasons for this work in Battersea:
- A kitchen too small for the number of sharers
- Adding a ground-floor room
Questions about extensions for extra rooms in Battersea
Can I extend an HMO under permitted development?
Some extensions to houses are permitted development, but rules differ for HMOs and by nation and council. We check the address before design.
Which postcodes in Battersea do you work in?
All of them, including SW8 and SW11, and the surrounding parts of Greater London.
Where do I check the HMO rules for an address in Battersea?
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 extensions for extra rooms cost in Battersea?
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.
Extensions for extra rooms near Battersea
- Chelsea · 1 mi
- Pimlico · 1 mi
- City of Westminster · 2 mi
- Fulham · 2 mi
- Brixton · 2 mi
- London · 3 mi
- All of Greater London
Other HMO services in Battersea
- Loft conversions for extra rooms in Battersea
- Communal kitchen refits in Battersea
- Layout changes and room reconfiguration in Battersea
- Large HMO conversions (7+ sharers) in Battersea
- Ensuite installation in Battersea
- House to HMO conversion in Battersea
- Fire alarm and detection systems in Battersea
- Void and between-tenancy refurbs in Battersea