An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Trowbridge is 19 miles south-east of Bristol. We price extensions for extra rooms there against England’s HMO rules and the council’s written HMO standards, so work is planned to the standard an inspection looks for.
- Area
- Wiltshire, England
- Postcodes
- BA14
- Location
- 19 miles south-east of Bristol
- Pricing region
- South West
What do extensions for extra rooms in Trowbridge involve?
- Building control completion
- Fire separation and detection extended to the new space
- Party wall coordination where needed
- Planning route check and drawings
- Kitchen or bedroom fit-out
Which rules apply in Trowbridge?
Here is what usually applies to a Trowbridge job of this kind. It is general information rather than legal advice, and the council’s written HMO standards have the final detail.
- 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.
- National rules ask for an adequate number of bathrooms, WCs and basins and suitably located kitchens; numeric ratios are set by each council.
How much do extensions for extra rooms cost in Trowbridge?
| 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 Trowbridge 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?
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 Trowbridge landlords need it?
Landlords in Trowbridge most often ask us for this when:
- Adding a ground-floor room
- Moving to more sharers with consent
Questions about extensions for extra rooms in Trowbridge
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.
Do you cover all of Trowbridge?
Yes. We work across Trowbridge and the BA14 postcode areas, plus the rest of Wiltshire. Nearby places we also cover include Bath, Frome, Chippenham.
Where do I check the HMO rules for an address in Trowbridge?
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 Trowbridge?
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 Trowbridge
- Bath · 8 mi
- Frome · 8 mi
- Chippenham · 10 mi
- Kingswood · 16 mi
- Mangotsfield · 17 mi
- Yate · 18 mi
- All of Wiltshire
Other HMO services in Trowbridge
- Loft conversions for extra rooms in Trowbridge
- Communal kitchen refits in Trowbridge
- Layout changes and room reconfiguration in Trowbridge
- Large HMO conversions (7+ sharers) in Trowbridge
- Ensuite installation in Trowbridge
- House to HMO conversion in Trowbridge
- Licence condition and schedule-of-works in Trowbridge
- EPC and energy upgrades in Trowbridge