- Nation
- England
- Pricing region
- Yorkshire and the Humber
- Postcode areas
- S, DN
- Main towns
- Sheffield, Rotherham, Doncaster, Barnsley, Bentley
What do extensions for extra rooms in South Yorkshire involve?
- Heating, insulation and glazing
- Fire separation and detection extended to the new space
- Party wall coordination where needed
- Foundations, structure and roof
- Ensuite drainage and extraction
- Building control completion
Which rules apply in South Yorkshire?
- 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.
- National rules ask for an adequate number of bathrooms, WCs and basins and suitably located kitchens; numeric ratios are set by each council.
- 7 or more sharers is a sui generis large HMO and normally needs planning permission.
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 extensions for extra rooms cost in South Yorkshire?
| 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 South Yorkshire
Questions about extensions for extra rooms in South Yorkshire
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.
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 South Yorkshire?
Yes, across the whole of South Yorkshire, including Sheffield, Rotherham, Doncaster.
Who licenses HMOs in South Yorkshire?
HMOs in South Yorkshire 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 South Yorkshire
- Loft conversions for extra rooms in South Yorkshire
- Communal kitchen refits in South Yorkshire
- Layout changes and room reconfiguration in South Yorkshire
- Large HMO conversions (7+ sharers) in South Yorkshire
- Ensuite installation in South Yorkshire
- House to HMO conversion in South Yorkshire
- Full HMO refurbishment in South Yorkshire
- Escape routes, emergency lighting and fire stopping in South Yorkshire