An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. For a house in Whitchurch we start with a measured survey, check the council’s written HMO standards for the number of sharers, and then price each item separately.
- Area
- Cardiff, Wales
- Postcodes
- CF5 and CF14
- Location
- 3 miles north-west of Cardiff
- Pricing region
- Wales
What do extensions for extra rooms in Whitchurch involve?
- Heating, insulation and glazing
- Party wall coordination where needed
- Kitchen or bedroom fit-out
- Building control completion
- Fire separation and detection extended to the new space
Which rules apply in Whitchurch?
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 Whitchurch before we price.
- 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.
- 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.
- Kitchen and bathroom ratios are set in each council’s HMO standards.
How much do extensions for extra rooms cost in Whitchurch?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £32,900 – £56,400 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £1,700 – £3,750 | m² |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Whitchurch can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Typical time on site: 8–14 weeks. We agree the programme with you before starting and send photo updates as the work progresses.
When do Whitchurch landlords need it?
Typical reasons for this work in Whitchurch:
- A kitchen too small for the number of sharers
- Adding a ground-floor room
Questions about extensions for extra rooms in Whitchurch
Is a kitchen extension worth it?
Often, when the existing kitchen limits how many people the council will allow. A bigger kitchen can unlock an extra room.
How far do you travel from Whitchurch?
We cover the whole of Cardiff and work UK-wide. For Whitchurch the nearest towns on our list are Cardiff (3 miles), Caerphilly (4 miles), Penarth (5 miles).
Does a shared house in Whitchurch need an HMO licence?
In Wales, mandatory licensing covers HMOs of 3 or more storeys with 5 or more people. Many councils, including Cardiff and Swansea, also run additional licensing for smaller HMOs. Every landlord must register with Rent Smart Wales.
How much do extensions for extra rooms cost in Whitchurch?
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.
Extensions for extra rooms near Whitchurch
- Cardiff · 3 mi
- Caerphilly · 4 mi
- Penarth · 5 mi
- Llantrisant · 7 mi
- Pontypridd · 8 mi
- Barry · 8 mi
- All of Cardiff
Other HMO services in Whitchurch
- Loft conversions for extra rooms in Whitchurch
- Communal kitchen refits in Whitchurch
- Layout changes and room reconfiguration in Whitchurch
- Large HMO conversions (7+ sharers) in Whitchurch
- Ensuite installation in Whitchurch
- House to HMO conversion in Whitchurch
- Fire doors in Whitchurch
- Escape routes, emergency lighting and fire stopping in Whitchurch