An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Leatherhead is 17 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
- Surrey, England
- Postcodes
- KT21, KT22 and KT23
- Location
- 17 miles south-west of London
- Pricing region
- South East
What do extensions for extra rooms in Leatherhead involve?
- Planning route check and drawings
- Building control completion
- Foundations, structure and roof
- Party wall coordination where needed
- Kitchen or bedroom fit-out
Which rules apply in Leatherhead?
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 Leatherhead before we price.
- 7 or more sharers is a sui generis large HMO and normally needs planning permission.
- Building regulations cover structural changes, new partitions, ensuite drainage, fire-resisting construction and notifiable electrical work.
- Smoke alarms on every storey with living accommodation and CO alarms by fixed combustion appliances (other than gas cookers) are required by law.
- 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 Leatherhead?
| 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 |
These are typical ranges including VAT, adjusted for South East, where costs run above the UK average. The fixed price for a house in Leatherhead 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 Leatherhead landlords need it?
Typical reasons for this work in Leatherhead:
- A kitchen too small for the number of sharers
- Adding a ground-floor room
Questions about extensions for extra rooms in Leatherhead
Do you handle building control?
Yes, from application to completion certificate.
How far do you travel from Leatherhead?
We cover the whole of Surrey and work UK-wide. For Leatherhead the nearest towns on our list are Epsom (4 miles), Ewell (5 miles), Esher (5 miles).
Where do I check the HMO rules for an address in Leatherhead?
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 Leatherhead?
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 Leatherhead
Other HMO services in Leatherhead
- Loft conversions for extra rooms in Leatherhead
- Communal kitchen refits in Leatherhead
- Layout changes and room reconfiguration in Leatherhead
- Large HMO conversions (7+ sharers) in Leatherhead
- Ensuite installation in Leatherhead
- House to HMO conversion in Leatherhead
- Student HMO refurbishment in Leatherhead
- Small HMO conversions (3–6 sharers) in Leatherhead