- Nation
- England
- Pricing region
- South West
- Postcode areas
- SN, SP, BA, RG
- Main towns
- Swindon, Salisbury, Trowbridge, Chippenham
What does commercial and above-shop to HMO in Wiltshire involve?
- Sound insulation to floors and party walls
- Windows and thermal upgrades
- Fire separation between the commercial unit and the homes above
- New electrics, heating and ventilation
- Coordination with planning and building control
- New kitchens, bathrooms and ensuites
Which rules apply in Wiltshire?
- Under the Renters’ Rights Act, civil penalties reach £40,000 for offences such as running an unlicensed HMO.
- 3–6 unrelated sharers is use class C4; changing from a family house is usually permitted development unless an Article 4 direction applies.
- Building regulations cover structural changes, new partitions, ensuite drainage, fire-resisting construction and notifiable electrical work.
- The Fire Safety Order 2005 applies to the common parts of HMOs, enforced by the fire and rescue authority.
- Where the building regulations apply to a conversion, Part E sound requirements can apply between rooms and floors.
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 does commercial and above-shop to HMO cost in Wiltshire?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Conversion works per letting room (walls, linings, electrics, decoration; excludes kitchens, bathrooms and fire systems; our estimate) | £3,500 – £6,500 | £3,650 – £6,750 | letting room |
| Panel alarm system (Grade A type), larger HMO | £1,750 – £4,500 | £1,800 – £4,700 | house |
| Acoustic ceiling or floor upgrade, 12–15 m² | £800 – £2,700 | £830 – £2,800 | room |
| Communal HMO kitchen with extra cooking and sink capacity (our estimate from domestic ranges) | £8,000 – £18,000 | £8,300 – £18,700 | kitchen |
| Ensuite shower room added to a bedroom | £4,000 – £10,000 | £4,150 – £10,400 | ensuite |
Typical time on site: 12–24 weeks. For a figure for your house, try the guide-price tool.
Commercial and above-shop to HMO by town in Wiltshire
Questions about commercial and above-shop to HMO in Wiltshire
Can offices be converted to an HMO without planning?
Some office-to-home changes have permitted development rights in England, but those rights generally create self-contained flats, and HMO use usually needs its own consent. We work from your planning position and flag anything that needs checking.
Do you work on listed or conservation area buildings?
Yes, with the right consents in place. Older high street buildings often need extra care with windows, fire upgrades and sound insulation.
Do you carry out commercial and above-shop to HMO across Wiltshire?
Yes, across the whole of Wiltshire, including Swindon, Salisbury, Trowbridge.
Who licenses HMOs in Wiltshire?
HMOs in Wiltshire 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 Wiltshire
- Large HMO conversions (7+ sharers) in Wiltshire
- Escape routes, emergency lighting and fire stopping in Wiltshire
- Sound insulation in Wiltshire
- EPC and energy upgrades in Wiltshire
- Rewires and EICR remedials in Wiltshire
- Layout changes and room reconfiguration in Wiltshire
- Damp, mould and HHSRS repairs in Wiltshire
- Bedroom upgrades and room refits in Wiltshire