An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In Hampton, a town of about 20,000 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
- KT8 and TW12
- Location
- 12 miles south-west of London
- Pricing region
- London
What do extensions for extra rooms in Hampton involve?
- Planning route check and drawings
- Fire separation and detection extended to the new space
- Kitchen or bedroom fit-out
- Foundations, structure and roof
- Building control completion
Which rules apply in Hampton?
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 Hampton before we price.
- 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.
- Fire precautions follow a risk assessment; the LACORS Housing – Fire Safety guide (2008) is guidance, not law, but many councils base their standards on it.
- 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 Hampton?
| 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 |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Hampton can move the figure either way, which is why we quote after seeing the house.
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 Hampton landlords need it?
We usually get the call when:
- A kitchen too small for the number of sharers
- Adding a ground-floor room
Questions about extensions for extra rooms in Hampton
Do you handle building control?
Yes, from application to completion certificate.
Which postcodes in Hampton do you work in?
All of them, including KT8 and TW12, and the surrounding parts of Greater London.
Where do I check the HMO rules for an address in Hampton?
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 Hampton?
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 Hampton
- Hanworth · 2 mi
- Sunbury-on-Thames · 2 mi
- Walton-on-Thames · 3 mi
- Esher · 3 mi
- Feltham · 3 mi
- Surbiton · 3 mi
- All of Greater London
Other HMO services in Hampton
- Loft conversions for extra rooms in Hampton
- Communal kitchen refits in Hampton
- Layout changes and room reconfiguration in Hampton
- Large HMO conversions (7+ sharers) in Hampton
- Ensuite installation in Hampton
- House to HMO conversion in Hampton
- Bedroom upgrades and room refits in Hampton
- Student HMO refurbishment in Hampton