In short: An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In City of Edinburgh 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
- EH
- Main towns
- Edinburgh
What do extensions for extra rooms in City of Edinburgh involve?
- Fire separation and detection extended to the new space
- Kitchen or bedroom fit-out
- Heating, insulation and glazing
- Ensuite drainage and extraction
- Party wall coordination where needed
- Planning route check and drawings
Which rules apply in City of Edinburgh?
- 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 City of Edinburgh?
| 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 City of Edinburgh
Questions about extensions for extra rooms in City of Edinburgh
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.
Will the extension affect neighbours?
Possibly, if it is on or near a boundary. Party wall procedures may apply in England and Wales.
Do you carry out extensions for extra rooms across City of Edinburgh?
Yes, across the whole of City of Edinburgh, including Edinburgh.
Who licenses HMOs in City of Edinburgh?
City of Edinburgh council licenses HMOs in its area. Every HMO in Scotland needs a licence.
Other HMO services in City of Edinburgh
- Loft conversions for extra rooms in City of Edinburgh
- Communal kitchen refits in City of Edinburgh
- Layout changes and room reconfiguration in City of Edinburgh
- Large HMO conversions (7+ sharers) in City of Edinburgh
- Ensuite installation in City of Edinburgh
- House to HMO conversion in City of Edinburgh
- Rewires and EICR remedials in City of Edinburgh
- Damp, mould and HHSRS repairs in City of Edinburgh