In short: An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In Perth and Kinross we survey first, price each item separately and hand over the certificates and photos a council asks for.
- Nation
- Scotland
- Pricing region
- Scotland
- Postcode areas
- PH, KY, FK, DD
- Main towns
- Perth
What do extensions for extra rooms in Perth and Kinross involve?
- Party wall coordination where needed
- Ensuite drainage and extraction
- Heating, insulation and glazing
- Building control completion
- Kitchen or bedroom fit-out
- Fire separation and detection extended to the new space
Which rules apply in Perth and Kinross?
- Scotland has no C4 use class: up to 5 residents can fall within Class 9 (houses), and HMO planning policy is set by each council, some of which require permission at lower numbers.
- A building warrant may be needed for a change of use or for installing a fire alarm system; check with the council’s building standards service.
- Councils set HMO fire standards through licence conditions, often including emergency lighting in larger HMOs.
- Kitchen, WC and bathroom ratios come from council standards; one WC and one bath or shower per 5 people is a common figure.
Scottish councils set their own HMO licence standards and planning policies. Every HMO needs a licence, so check the council’s standards before you design the layout.
How much do extensions for extra rooms cost in Perth and Kinross?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £33,250 – £57,000 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £1,700 – £3,800 | m² |
Typical time on site: 8–14 weeks. For a figure for your house, try the guide-price tool.
Extensions for extra rooms by town in Perth and Kinross
Questions about extensions for extra rooms in Perth and Kinross
Can I extend an HMO under permitted development?
Some extensions to houses are permitted development, but rules differ for HMOs and by nation and council. We check the address before design.
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.
Do you carry out extensions for extra rooms across Perth and Kinross?
Yes, across the whole of Perth and Kinross, including Perth.
Who licenses HMOs in Perth and Kinross?
Perth and Kinross council licenses HMOs in its area. Every HMO in Scotland needs a licence.
Other HMO services in Perth and Kinross
- Loft conversions for extra rooms in Perth and Kinross
- Communal kitchen refits in Perth and Kinross
- Layout changes and room reconfiguration in Perth and Kinross
- Large HMO conversions (7+ sharers) in Perth and Kinross
- Ensuite installation in Perth and Kinross
- House to HMO conversion in Perth and Kinross
- HMO fire safety upgrades in Perth and Kinross
- Sound insulation in Perth and Kinross