An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Landlords in Chesham (HP5) 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
- Buckinghamshire, England
- Postcodes
- HP5
- Location
- 23 miles north-east of Reading
- Pricing region
- South East
What do extensions for extra rooms in Chesham involve?
- Heating, insulation and glazing
- Ensuite drainage and extraction
- Foundations, structure and roof
- Planning route check and drawings
- Fire separation and detection extended to the new space
Which rules apply in Chesham?
Here is what usually applies to a Chesham 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.
- 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.
- 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 Chesham?
| 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 Chesham follows a site visit.
How long does it take?
Allow 8–14 weeks on site for a typical job. Drawings, approvals and long-lead items such as kitchens or fire door sets are booked before we start.
When do Chesham landlords need it?
Landlords in Chesham 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 Chesham
Do you handle building control?
Yes, from application to completion certificate.
Which postcodes in Chesham do you work in?
All of them, including HP5, and the surrounding parts of Buckinghamshire.
Does a shared house in Chesham 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 Chesham?
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 Chesham
- Amersham · 2 mi
- Berkhamsted · 4 mi
- Chalfont Saint Peter · 7 mi
- Rickmansworth · 7 mi
- Hemel Hempstead · 7 mi
- High Wycombe · 8 mi
- All of Buckinghamshire
Other HMO services in Chesham
- Loft conversions for extra rooms in Chesham
- Communal kitchen refits in Chesham
- Layout changes and room reconfiguration in Chesham
- Large HMO conversions (7+ sharers) in Chesham
- Ensuite installation in Chesham
- House to HMO conversion in Chesham
- Fire doors in Chesham
- Fire alarm and detection systems in Chesham