In short: An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Across Lincolnshire, the work is planned around England’s HMO rules and the standards the local council publishes.
- Nation
- England
- Pricing region
- East Midlands
- Postcode areas
- LN, PE, DN, NG
- Main towns
- Lincoln, Grimsby, Scunthorpe, Boston, Grantham
What do extensions for extra rooms in Lincolnshire involve?
- Planning route check and drawings
- Fire separation and detection extended to the new space
- Kitchen or bedroom fit-out
- Ensuite drainage and extraction
- Building control completion
- Heating, insulation and glazing
Which rules apply in Lincolnshire?
- 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.
- The Fire Safety Order 2005 applies to the common parts of HMOs, enforced by the fire and rescue authority.
- 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 Lincolnshire?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £33,950 – £58,200 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £1,750 – £3,900 | 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 Lincolnshire
Questions about extensions for extra rooms in Lincolnshire
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 Lincolnshire?
Yes, across the whole of Lincolnshire, including Lincoln, Grimsby, Scunthorpe.
Who licenses HMOs in Lincolnshire?
HMOs in Lincolnshire 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 Lincolnshire
- Loft conversions for extra rooms in Lincolnshire
- Communal kitchen refits in Lincolnshire
- Layout changes and room reconfiguration in Lincolnshire
- Large HMO conversions (7+ sharers) in Lincolnshire
- Ensuite installation in Lincolnshire
- House to HMO conversion in Lincolnshire
- Licence condition and schedule-of-works in Lincolnshire
- Student HMO refurbishment in Lincolnshire