In short: A commercial to HMO conversion turns space that was never a home, such as upper floors over shops or small office buildings, into shared accommodation. We carry this out across Powys, priced against the HMO rules for Wales and the council’s own standards.
- Nation
- Wales
- Pricing region
- Wales
- Postcode areas
- LD, SY, NP, SA
What does commercial and above-shop to HMO in Powys involve?
- New kitchens, bathrooms and ensuites
- Sound insulation to floors and party walls
- Coordination with planning and building control
- Survey of structure, services and access
- Fire separation between the commercial unit and the homes above
- Windows and thermal upgrades
Which rules apply in Powys?
- Mandatory licence for HMOs with 3 or more storeys and 5 or more people in 2 or more households; Wales did not adopt England’s 2018 change.
- 3–6 sharers is use class C4, and in Wales changing a house to C4 always needs planning permission; only C4 back to C3 is permitted development.
- Building regulations cover structural work, partitions, drainage, fire-resisting construction and electrics; confirm with building control whether the conversion is a material change of use.
- Fitness for human habitation rules require mains-powered, interlinked smoke alarms on every storey and CO alarms where there is a gas, oil or solid-fuel appliance.
- Building regulations sound requirements can apply to conversions and new separating walls and floors.
Welsh councils set their own HMO standards and may run additional licensing. In Wales, changing a house to a C4 HMO always needs planning permission, so check planning first.
How much does commercial and above-shop to HMO cost in Powys?
| 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 | £3,300 – £6,100 | letting room |
| Panel alarm system (Grade A type), larger HMO | £1,750 – £4,500 | £1,650 – £4,250 | house |
| Acoustic ceiling or floor upgrade, 12–15 m² | £800 – £2,700 | £750 – £2,550 | room |
| Communal HMO kitchen with extra cooking and sink capacity (our estimate from domestic ranges) | £8,000 – £18,000 | £7,500 – £16,900 | kitchen |
| Ensuite shower room added to a bedroom | £4,000 – £10,000 | £3,750 – £9,400 | ensuite |
Typical time on site: 12–24 weeks. For a figure for your house, try the guide-price tool.
Questions about commercial and above-shop to HMO in Powys
What about the shop below?
The homes above must be separated from the commercial unit by fire-resisting construction, and the escape route must not pass through the shop. We design the separation as part of the building control application.
Is building control needed?
Yes. Changing commercial space to residential use is a material change of use and needs building regulations approval.
Do you carry out commercial and above-shop to HMO across Powys?
Yes, across the whole of Powys.
Who licenses HMOs in Powys?
Powys council licenses HMOs in its area. Landlords must also register with Rent Smart Wales.
Other HMO services in Powys
- Large HMO conversions (7+ sharers) in Powys
- Escape routes, emergency lighting and fire stopping in Powys
- Sound insulation in Powys
- EPC and energy upgrades in Powys
- Rewires and EICR remedials in Powys
- Layout changes and room reconfiguration in Powys
- Fire alarm and detection systems in Powys
- Loft conversions for extra rooms in Powys