- Nation
- Wales
- Pricing region
- Wales
- Postcode areas
- CF
- Main towns
- Barry, Penarth, Llantwit Major
What do large HMO conversions (7+ sharers) in Vale of Glamorgan involve?
- Second kitchen or extra kitchen capacity
- Fire alarm and detection system sized for the building
- Emergency lighting where the escape route needs it
- Ensuites or extra bathrooms
- Feasibility review and measured survey
- Sound insulation between rooms and floors
Which rules apply in Vale of Glamorgan?
- Landlords must register with Rent Smart Wales, and those who manage their own lets need a Rent Smart Wales licence.
- England’s national room sizes do not apply in Wales; councils set their own room standards.
- Kitchen and bathroom ratios are set in each council’s HMO standards.
- More than 6 sharers is a sui generis HMO and needs planning permission; councils such as Cardiff apply concentration limits.
- 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.
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 do large HMO conversions (7+ sharers) cost in Vale of Glamorgan?
| 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 |
| Protected route upgrades: fire-resisting linings, fire stopping, lighting (three-storey house, our estimate) | £2,000 – £6,000 | £1,900 – £5,650 | house |
| Ensuite shower room added to a bedroom | £4,000 – £10,000 | £3,750 – £9,400 | ensuite |
| Communal HMO kitchen with extra cooking and sink capacity (our estimate from domestic ranges) | £8,000 – £18,000 | £7,500 – £16,900 | kitchen |
Typical time on site: 10–20 weeks. For a figure for your house, try the guide-price tool.
Large HMO conversions (7+ sharers) by town in Vale of Glamorgan
Questions about large HMO conversions (7+ sharers) in Vale of Glamorgan
What fire alarm does a large HMO need?
The fire risk assessment and the council decide; alarm grades come from guidance, not statute. For larger HMOs, council guides and the NI fire service guide commonly point to a Grade A panel system covering escape routes and rooms. We fit to the specification set, and give you the commissioning certificate.
Do you handle building control?
Yes. The building work in a large HMO conversion (partitions, fire separation, drainage, electrics) needs to meet the building regulations, and the conversion can also count as a material change of use. We confirm the route with building control, coordinate inspections and give you the completion paperwork.
Do you carry out large HMO conversions (7+ sharers) across Vale of Glamorgan?
Yes, across the whole of Vale of Glamorgan, including Barry, Penarth, Llantwit Major.
Who licenses HMOs in Vale of Glamorgan?
Vale of Glamorgan council licenses HMOs in its area. Landlords must also register with Rent Smart Wales.
Other HMO services in Vale of Glamorgan
- House to HMO conversion in Vale of Glamorgan
- Escape routes, emergency lighting and fire stopping in Vale of Glamorgan
- Fire alarm and detection systems in Vale of Glamorgan
- Sound insulation in Vale of Glamorgan
- Loft conversions for extra rooms in Vale of Glamorgan
- Extensions for extra rooms in Vale of Glamorgan
- Damp, mould and HHSRS repairs in Vale of Glamorgan
- Licence condition and schedule-of-works in Vale of Glamorgan