A house to HMO conversion turns a single-family home into a house in multiple occupation: a shared home for unrelated people with private bedrooms and shared kitchen or bathroom space. Landlords in Treharris (CF45 and CF46) usually come to us with a council letter, a fire risk assessment or a house they have just bought. We price from whichever you have.
- Area
- Merthyr Tydfil, Wales
- Postcodes
- CF45 and CF46
- Location
- 14 miles north-west of Cardiff
- Pricing region
- Wales
What does house to HMO conversion in Treharris involve?
- New stud walls, door openings and room splits
- A communal kitchen sized for the number of sharers
- Layout drawings showing bedrooms, kitchens, bathrooms and the escape route
- Measured survey and room-size check against the licensing standards
- Decoration, flooring and a handover pack for licensing
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.
- 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.
How much does house to HMO conversion cost in Treharris?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Typical 3–4 bed house to a 5–6 bed HMO, all-in | £30,000 – £75,000 | £28,200 – £70,500 | project |
| 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 |
| 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 |
| Interlinked mains alarm system (Grade D type), small HMO (our estimate from installer guides) | £800 – £2,000 | £750 – £1,900 | house |
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?
Typical time on site: 6–14 weeks. We agree the programme with you before starting and send photo updates as the work progresses.
When do Treharris landlords need it?
Typical reasons for this work in Treharris:
- A council has said an existing shared house needs works before a licence
- A family let is moving to room-by-room letting
Questions about house to HMO conversion in Treharris
Will the house pass licensing once the works are done?
We build to the standards your council publishes and give you the certificates and drawings an inspection asks for. The licence decision belongs to the licensing authority, so we never promise approval, but we design to meet the written standards from day one.
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 does house to HMO conversion 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.
House to HMO conversion 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
- Small HMO conversions (3–6 sharers) in Treharris
- Large HMO conversions (7+ sharers) in Treharris
- HMO fire safety upgrades in Treharris
- Ensuite installation in Treharris
- Communal kitchen refits in Treharris
- Layout changes and room reconfiguration in Treharris
- Extensions for extra rooms in Treharris
- Professional and co-living HMO refurbs in Treharris