An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In Brentwood, a town of around 55,000 people in Essex, the work is planned around the HMO rules for England and the council’s written HMO standards.
- Area
- Essex, England
- Postcodes
- CM14
- Location
- 20 miles north-east of London
- Pricing region
- East of England
What do extensions for extra rooms in Brentwood involve?
- Heating, insulation and glazing
- Ensuite drainage and extraction
- Party wall coordination where needed
- Planning route check and drawings
- Building control completion
Which rules apply in Brentwood?
Here is what usually applies to a Brentwood 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.
- A conversion can be a material change of use under the building regulations, so confirm with building control before work starts.
- 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 Brentwood?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £37,100 – £63,600 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £1,900 – £4,250 | m² |
These are typical ranges including VAT, adjusted for East of England, where costs run above the UK average. The fixed price for a house in Brentwood follows a site visit.
How long does it take?
Most jobs of this kind take 8–14 weeks. If a council deadline applies in Brentwood, tell us at the first call so the programme is built around it.
When do Brentwood landlords need it?
We usually get the call when:
- Adding a ground-floor room
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Brentwood
Do you handle building control?
Yes, from application to completion certificate.
Which postcodes in Brentwood do you work in?
All of them, including CM14, and the surrounding parts of Essex.
Where do I check the HMO rules for an address in Brentwood?
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 Brentwood?
Our guide ranges for East of England 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 Brentwood
- Billericay · 5 mi
- Hornchurch · 6 mi
- Romford · 6 mi
- Basildon · 7 mi
- Dagenham · 8 mi
- South Ockendon · 8 mi
- All of Essex
Other HMO services in Brentwood
- Loft conversions for extra rooms in Brentwood
- Communal kitchen refits in Brentwood
- Layout changes and room reconfiguration in Brentwood
- Large HMO conversions (7+ sharers) in Brentwood
- Ensuite installation in Brentwood
- House to HMO conversion in Brentwood
- HMO fire safety upgrades in Brentwood
- Escape routes, emergency lighting and fire stopping in Brentwood