An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In Christchurch, a town of about 31,000 people in Dorset, the work is planned around the HMO rules for England and the council’s written HMO standards.
- Area
- Dorset, England
- Postcodes
- BH6 and BH23
- Location
- 20 miles south-west of Southampton
- Pricing region
- South West
What do extensions for extra rooms in Christchurch involve?
- Fire separation and detection extended to the new space
- Ensuite drainage and extraction
- Building control completion
- Kitchen or bedroom fit-out
- Planning route check and drawings
Which rules apply in Christchurch?
Extensions for extra rooms in Christchurch must satisfy national law for England, the council’s written HMO standards and, where walls, drainage or fire separation change, the building rules. In short:
- 7 or more sharers is a sui generis large HMO and normally needs planning permission.
- A conversion can be a material change of use under the building regulations, so confirm with building control before work starts.
- 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.
How much do extensions for extra rooms cost in Christchurch?
| 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 |
Prices in Christchurch are shown with our regional adjustment for South West (above the UK average). Your quote is itemised and fixed in writing once the scope and specification are agreed.
How long does it take?
Most jobs of this kind take 8–14 weeks. If a council deadline applies in Christchurch, tell us at the first call so the programme is built around it.
When do Christchurch landlords need it?
We usually get the call when:
- A kitchen too small for the number of sharers
- Adding a ground-floor room
Questions about extensions for extra rooms in Christchurch
Do you handle building control?
Yes, from application to completion certificate.
How far do you travel from Christchurch?
We cover the whole of Dorset and work UK-wide. For Christchurch the nearest towns on our list are Bournemouth (4 miles), New Milton (5 miles), Poole (9 miles).
Where do I check the HMO rules for an address in Christchurch?
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 Christchurch?
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 Christchurch
- Bournemouth · 4 mi
- New Milton · 5 mi
- Poole · 9 mi
- Totton · 18 mi
- Hythe · 19 mi
- Southampton · 20 mi
- All of Dorset
Other HMO services in Christchurch
- Loft conversions for extra rooms in Christchurch
- Communal kitchen refits in Christchurch
- Layout changes and room reconfiguration in Christchurch
- Large HMO conversions (7+ sharers) in Christchurch
- Ensuite installation in Christchurch
- House to HMO conversion in Christchurch
- HMO fire safety upgrades in Christchurch
- Student HMO refurbishment in Christchurch