In short: An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. We carry this out across Highland, priced against the HMO rules for Scotland and the council’s own standards.
- Nation
- Scotland
- Pricing region
- Scotland
- Postcode areas
- IV, PH, KW, PA
- Main towns
- Inverness, Fort William
What do extensions for extra rooms in Highland involve?
- Building control completion
- Ensuite drainage and extraction
- Party wall coordination where needed
- Foundations, structure and roof
- Fire separation and detection extended to the new space
- Heating, insulation and glazing
Which rules apply in Highland?
- 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 Highland?
| 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 Highland
Questions about extensions for extra rooms in Highland
Do you handle building control?
Yes, from application to completion certificate.
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 Highland?
Yes, across the whole of Highland, including Inverness, Fort William.
Who licenses HMOs in Highland?
Highland council licenses HMOs in its area. Every HMO in Scotland needs a licence.
Other HMO services in Highland
- Loft conversions for extra rooms in Highland
- Communal kitchen refits in Highland
- Layout changes and room reconfiguration in Highland
- Large HMO conversions (7+ sharers) in Highland
- Ensuite installation in Highland
- House to HMO conversion in Highland
- Void and between-tenancy refurbs in Highland
- EPC and energy upgrades in Highland