Large HMO conversions across Swansea

In short: A large HMO is a shared house for seven or more people. We carry this out across Swansea, priced against the HMO rules for Wales and the council’s own standards.

Nation: Wales
Pricing region: Wales
Postcode areas: SA
Main towns: Swansea, Gorseinon, Clydach

What do large HMO conversions (7+ sharers) in Swansea involve?

Ensuites or extra bathrooms
Protected stair and landing with fire doors and fire stopping
Planning and building control drawings, coordinated with your designer
Emergency lighting where the escape route needs it
Feasibility review and measured survey
Fire alarm and detection system sized for the building

Which rules apply in Swansea?

Councils such as Cardiff and Swansea run additional licensing for HMOs outside the mandatory scheme.
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.

Swansea Council: local HMO schemes

Additional licensing	In force in part of the council area Additional licensing in Castle, Uplands, St Thomas and Waterfront wards from 14 Feb 2026 for five years (replaced 2020 Castle/Uplands scheme).
Selective licensing	No scheme found

Schemes change. Check the council’s current pages for the exact address in Swansea before you buy or start work. Source: Swansea Council HMO licensing page, checked 2026-10-31.

How much do large HMO conversions (7+ sharers) cost in Swansea?

Regional adjustment for Wales. Planning budgets: see our prices page.
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 Swansea

Questions about large HMO conversions (7+ sharers) in Swansea

Can you work with my architect?

Yes. We often build from an architect’s drawings, or we can recommend a designer to prepare them.

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 carry out large HMO conversions (7+ sharers) across Swansea?

Yes, across the whole of Swansea, including Swansea, Gorseinon, Clydach.

Who licenses HMOs in Swansea?

Swansea council licenses HMOs in its area. Landlords must also register with Rent Smart Wales.

Large HMO conversions (7+ sharers) across Swansea