- Nation
- England
- Pricing region
- North East
- Postcode areas
- DL, DH, TS, SR
- Main towns
- Darlington, Hartlepool, Stockton-on-Tees, Durham, Chester-le-Street
What do loft conversions for extra rooms in County Durham involve?
- Feasibility and head-height check
- Building control sign-off
- Planning or permitted development check
- Dormer or roof windows
- Fire doors and extended alarm system
- New stair within the protected route
Which rules apply in County Durham?
- 3–6 unrelated sharers is use class C4; changing from a family house is usually permitted development unless an Article 4 direction applies.
- Building regulations cover structural changes, new partitions, ensuite drainage, fire-resisting construction and notifiable electrical work.
- Smoke alarms on every storey with living accommodation and CO alarms by fixed combustion appliances (other than gas cookers) are required by law.
- Floor area under a ceiling lower than 1.5 m does not count towards the room size, and many councils set larger sizes.
- Mandatory HMO licence for 5 or more people in 2 or more households (since October 2018); councils can add additional licensing for smaller HMOs.
Councils in England can add additional licensing and Article 4 directions on top of the national rules. Check the council’s website for the exact address before you buy or start work.
How much do loft conversions for extra rooms cost in County Durham?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Dormer loft conversion, about 30 m² | £40,000 – £60,000 | £36,800 – £55,200 | project |
| Rooflight loft conversion, about 30 m² | £22,500 – £30,000 | £20,700 – £27,600 | project |
Typical time on site: 6–10 weeks. For a figure for your house, try the guide-price tool.
Loft conversions for extra rooms by town in County Durham
- Darlington
- Hartlepool
- Stockton-on-Tees
- Durham
- Chester-le-Street
- Billingham
- Stanley
- Consett
- Newton Aycliffe
- Bishop Auckland
- Seaham
- Peterlee
Questions about loft conversions for extra rooms in County Durham
Will the loft room count for licensing?
Only the floor area with at least 1.5 metres of headroom counts towards the room size in England.
Does adding a loft room change the HMO planning position?
It can. Going from six to seven sharers moves a house into a large HMO in England, which normally needs planning permission. We check before design.
Do you carry out loft conversions for extra rooms across County Durham?
Yes, across the whole of County Durham, including Darlington, Hartlepool, Stockton-on-Tees.
Who licenses HMOs in County Durham?
HMOs in County Durham are licensed by the local council for the address. Where an area has several councils, each runs its own licensing and planning policies.
Other HMO services in County Durham
- Extensions for extra rooms in County Durham
- Large HMO conversions (7+ sharers) in County Durham
- Escape routes, emergency lighting and fire stopping in County Durham
- Ensuite installation in County Durham
- Layout changes and room reconfiguration in County Durham
- Fire alarm and detection systems in County Durham
- Communal kitchen refits in County Durham
- HMO fire safety upgrades in County Durham