An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In Salisbury, a town of around 45,000 people in Wiltshire, the work is planned around the HMO rules for England and the council’s written HMO standards.
- Area
- Wiltshire, England
- Postcodes
- SP1 and SP5
- Location
- 20 miles north-west of Southampton
- Pricing region
- South West
What do extensions for extra rooms in Salisbury involve?
- Building control completion
- Fire separation and detection extended to the new space
- Planning route check and drawings
- Heating, insulation and glazing
- Foundations, structure and roof
Which rules apply in Salisbury?
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 Salisbury before we price.
- 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 Salisbury?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £36,400 – £62,400 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £1,850 – £4,150 | m² |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Salisbury can move the figure either way, which is why we quote after seeing the house.
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 Salisbury landlords need it?
Typical reasons for this work in Salisbury:
- Moving to more sharers with consent
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Salisbury
Can I extend an HMO under permitted development?
Some extensions to houses are permitted development, but rules differ for HMOs and by nation and council. We check the address before design.
Which postcodes in Salisbury do you work in?
All of them, including SP1 and SP5, and the surrounding parts of Wiltshire.
Does a shared house in Salisbury 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 Salisbury?
Our guide ranges for South West 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 Salisbury
- Andover · 16 mi
- Totton · 17 mi
- Southampton · 20 mi
- Eastleigh · 21 mi
- Winchester · 21 mi
- New Milton · 22 mi
- All of Wiltshire
Other HMO services in Salisbury
- Loft conversions for extra rooms in Salisbury
- Communal kitchen refits in Salisbury
- Layout changes and room reconfiguration in Salisbury
- Large HMO conversions (7+ sharers) in Salisbury
- Ensuite installation in Salisbury
- House to HMO conversion in Salisbury
- Sound insulation in Salisbury
- Rewires and EICR remedials in Salisbury