An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In Gerrards Cross, a town of about 21,000 people in Buckinghamshire, the work is planned around the HMO rules for England and the council’s written HMO standards.
- Area
- Buckinghamshire, England
- Postcodes
- SL9
- Location
- 19 miles west of London
- Pricing region
- South East
What do extensions for extra rooms in Gerrards Cross involve?
- Kitchen or bedroom fit-out
- Building control completion
- Ensuite drainage and extraction
- Planning route check and drawings
- Foundations, structure and roof
Which rules apply in Gerrards Cross?
Here is what usually applies to a Gerrards Cross 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.
- 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 Gerrards Cross?
| 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 Gerrards Cross 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?
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 Gerrards Cross landlords need it?
Landlords in Gerrards Cross 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 Gerrards Cross
Will the extension affect neighbours?
Possibly, if it is on or near a boundary. Party wall procedures may apply in England and Wales.
Do you cover all of Gerrards Cross?
Yes. We work across Gerrards Cross and the SL9 postcode areas, plus the rest of Buckinghamshire. Nearby places we also cover include Chalfont Saint Peter, Uxbridge, Rickmansworth.
Where do I check the HMO rules for an address in Gerrards Cross?
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 Gerrards Cross?
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 Gerrards Cross
- Chalfont Saint Peter · 2 mi
- Uxbridge · 4 mi
- Rickmansworth · 5 mi
- Slough · 6 mi
- Ruislip · 6 mi
- Amersham · 6 mi
- All of Buckinghamshire
Other HMO services in Gerrards Cross
- Loft conversions for extra rooms in Gerrards Cross
- Communal kitchen refits in Gerrards Cross
- Layout changes and room reconfiguration in Gerrards Cross
- Large HMO conversions (7+ sharers) in Gerrards Cross
- Ensuite installation in Gerrards Cross
- House to HMO conversion in Gerrards Cross
- Damp, mould and HHSRS repairs in Gerrards Cross
- EPC and energy upgrades in Gerrards Cross