In short: An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Across Aberdeen City, the work is planned around Scotland’s HMO rules and the standards the local council publishes.
- Nation
- Scotland
- Pricing region
- Scotland
- Postcode areas
- AB
- Main towns
- Aberdeen
What do extensions for extra rooms in Aberdeen City involve?
- Ensuite drainage and extraction
- Heating, insulation and glazing
- Building control completion
- Kitchen or bedroom fit-out
- Party wall coordination where needed
- Fire separation and detection extended to the new space
Which rules apply in Aberdeen City?
- 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.
How much do extensions for extra rooms cost in Aberdeen City?
| 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 Aberdeen City
Questions about extensions for extra rooms in Aberdeen City
Will the extension affect neighbours?
Possibly, if it is on or near a boundary. Party wall procedures may apply in England and Wales.
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.
Do you carry out extensions for extra rooms across Aberdeen City?
Yes, across the whole of Aberdeen City, including Aberdeen.
Who licenses HMOs in Aberdeen City?
Aberdeen City council licenses HMOs in its area. Every HMO in Scotland needs a licence.
Other HMO services in Aberdeen City
- Loft conversions for extra rooms in Aberdeen City
- Communal kitchen refits in Aberdeen City
- Layout changes and room reconfiguration in Aberdeen City
- Large HMO conversions (7+ sharers) in Aberdeen City
- Ensuite installation in Aberdeen City
- House to HMO conversion in Aberdeen City
- Commercial and above-shop to HMO in Aberdeen City
- HMO fire safety upgrades in Aberdeen City