An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Surbiton is 11 miles south-west of London. We price extensions 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
- KT1, KT5 and KT6
- Location
- 11 miles south-west of London
- Pricing region
- London
What do extensions for extra rooms in Surbiton involve?
- Heating, insulation and glazing
- Party wall coordination where needed
- Foundations, structure and roof
- Planning route check and drawings
- Building control completion
Which rules apply in Surbiton?
Here is what usually applies to a Surbiton job of this kind. It is general information rather than legal advice, and the council’s written HMO standards have the final detail.
- 3–6 unrelated sharers is use class C4; changing from a family house is usually permitted development unless an Article 4 direction applies.
- 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.
- Council standards often step up at 5 and 6 sharers, for example a separate WC at 5 and a second bathroom from 6.
How much do extensions for extra rooms cost in Surbiton?
| 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 |
These are typical ranges including VAT, adjusted for London, where costs run above the UK average. The fixed price for a house in Surbiton follows a site visit.
How long does it take?
Typical time on site: 8–14 weeks. We agree the programme with you before starting and send photo updates as the work progresses.
When do Surbiton landlords need it?
Typical reasons for this work in Surbiton:
- Adding a ground-floor room
- Moving to more sharers with consent
Questions about extensions for extra rooms in Surbiton
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.
Do you cover all of Surbiton?
Yes. We work across Surbiton and the KT1, KT5 and KT6 postcode areas, plus the rest of Greater London. Nearby places we also cover include New Malden, Esher, Hampton.
Does a shared house in Surbiton 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 extensions for extra rooms cost in Surbiton?
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 Surbiton
- New Malden · 2 mi
- Esher · 3 mi
- Hampton · 3 mi
- Ewell · 4 mi
- Morden · 4 mi
- Epsom · 4 mi
- All of Greater London
Other HMO services in Surbiton
- Loft conversions for extra rooms in Surbiton
- Communal kitchen refits in Surbiton
- Layout changes and room reconfiguration in Surbiton
- Large HMO conversions (7+ sharers) in Surbiton
- Ensuite installation in Surbiton
- House to HMO conversion in Surbiton
- EPC and energy upgrades in Surbiton
- HMO fire safety upgrades in Surbiton