In short: An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In West Midlands we survey first, price each item separately and hand over the certificates and photos a council asks for.
- Nation
- England
- Pricing region
- West Midlands
- Postcode areas
- B, CV, DY, WS
- Main towns
- Birmingham, Coventry, Wolverhampton, Dudley, Walsall
What do extensions for extra rooms in West Midlands involve?
- Ensuite drainage and extraction
- Party wall coordination where needed
- Planning route check and drawings
- Kitchen or bedroom fit-out
- Fire separation and detection extended to the new space
- Foundations, structure and roof
Which rules apply in West Midlands?
- 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.
- Council standards often step up at 5 and 6 sharers, for example a separate WC at 5 and a second bathroom from 6.
- A conversion can be a material change of use under the building regulations, so confirm with building control before work starts.
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 West Midlands?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £35,000 – £60,000 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £1,800 – £4,000 | m² |
Typical time on site: 8–14 weeks. For a figure for your house, try the guide-price tool.
Extensions for extra rooms by town in West Midlands
- Birmingham
- Coventry
- Wolverhampton
- Dudley
- Walsall
- Solihull
- Sutton Coldfield
- West Bromwich
- Halesowen
- Stourbridge
- Smethwick
- Willenhall
- Tipton
- Bloxwich
- Wednesfield
- Washwood Heath
- Aston
- Shirley
- Brierley Hill
- Aldridge
- Acocks Green
- Bartley Green
- Wednesbury
- Kingswinford
Questions about extensions for extra rooms in West Midlands
Will the extension affect neighbours?
Possibly, if it is on or near a boundary. Party wall procedures may apply in England and Wales.
Is a kitchen extension worth it?
Often, when the existing kitchen limits how many people the council will allow. A bigger kitchen can unlock an extra room.
Do you carry out extensions for extra rooms across West Midlands?
Yes, across the whole of West Midlands, including Birmingham, Coventry, Wolverhampton.
Who licenses HMOs in West Midlands?
HMOs in West Midlands are licensed by the local council for the address. Where an area has several councils, each runs its own licensing and planning policies.
Other HMO services in West Midlands
- Loft conversions for extra rooms in West Midlands
- Communal kitchen refits in West Midlands
- Layout changes and room reconfiguration in West Midlands
- Large HMO conversions (7+ sharers) in West Midlands
- Ensuite installation in West Midlands
- House to HMO conversion in West Midlands
- Small HMO conversions (3–6 sharers) in West Midlands
- Void and between-tenancy refurbs in West Midlands