An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. For a house in Ewell we start with a measured survey, check the council’s written HMO standards for the number of sharers, and then price each item separately.
- Area
- Surrey, England
- Postcodes
- KT17, KT19 and SM3
- Location
- 12 miles south-west of London
- Pricing region
- South East
What do extensions for extra rooms in Ewell involve?
- Kitchen or bedroom fit-out
- Planning route check and drawings
- Party wall coordination where needed
- Heating, insulation and glazing
- Foundations, structure and roof
Which rules apply in Ewell?
Here is what usually applies to a Ewell 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.
- 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.
- 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 Ewell?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £39,200 – £67,200 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £2,000 – £4,500 | m² |
Prices in Ewell are shown with our regional adjustment for South East (above the UK average). Your quote is itemised and fixed in writing once the scope and specification are agreed.
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 Ewell landlords need it?
Landlords in Ewell most often ask us for this when:
- Moving to more sharers with consent
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Ewell
Will the extension affect neighbours?
Possibly, if it is on or near a boundary. Party wall procedures may apply in England and Wales.
Which postcodes in Ewell do you work in?
All of them, including KT17, KT19 and SM3, and the surrounding parts of Surrey.
Where do I check the HMO rules for an address in Ewell?
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 Ewell?
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.
Extensions for extra rooms near Ewell
- Epsom · 2 mi
- Sutton · 2 mi
- Banstead · 3 mi
- New Malden · 4 mi
- Surbiton · 4 mi
- Carshalton · 4 mi
- All of Surrey