A large HMO is a shared house for seven or more people. In Treharris, a town of about 12,000 people in Merthyr Tydfil, the work is planned around the HMO rules for Wales and the council’s written HMO standards.
- Area
- Merthyr Tydfil, Wales
- Postcodes
- CF45 and CF46
- Location
- 14 miles north-west of Cardiff
- Pricing region
- Wales
What do large HMO conversions (7+ sharers) in Treharris involve?
- Second kitchen or extra kitchen capacity
- Emergency lighting where the escape route needs it
- Planning and building control drawings, coordinated with your designer
- Sound insulation between rooms and floors
- Ensuites or extra bathrooms
Which rules apply in Treharris?
The rules below are the Wales-wide position for this kind of work. Councils add their own standards and schemes on top, so we always check the address in Treharris before we price.
- 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.
- 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.
How much do large HMO conversions (7+ sharers) cost in Treharris?
| 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 |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Treharris can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Allow 10–20 weeks on site for a typical job. Drawings, approvals and long-lead items such as kitchens or fire door sets are booked before we start.
When do Treharris landlords need it?
Typical reasons for this work in Treharris:
- An existing large HMO needs works before a licence renewal
- A large house, three or more storeys, or a building with lots of rooms
Questions about large HMO conversions (7+ sharers) in Treharris
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 cover all of Treharris?
Yes. We work across Treharris and the CF45 and CF46 postcode areas, plus the rest of Merthyr Tydfil. Nearby places we also cover include Nelson (Caerphilly), Gelligaer, Bargoed.
Where do I check the HMO rules for an address in Treharris?
With the local council for the address. 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 Treharris?
Our guide ranges for Wales 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.
Large HMO conversions (7+ sharers) near Treharris
- Nelson (Caerphilly) · 1 mi
- Gelligaer · 2 mi
- Bargoed · 3 mi
- Blackwood · 4 mi
- Pontypridd · 5 mi
- Rhondda · 6 mi
- All of Merthyr Tydfil
Other HMO services in Treharris
- House to HMO conversion in Treharris
- Escape routes, emergency lighting and fire stopping in Treharris
- Fire alarm and detection systems in Treharris
- Sound insulation in Treharris
- Loft conversions for extra rooms in Treharris
- Extensions for extra rooms in Treharris
- Damp, mould and HHSRS repairs in Treharris
- Layout changes and room reconfiguration in Treharris