An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Landlords in Corby (NN14, NN17 and NN18) usually come to us with a council letter, a fire risk assessment or a house they have just bought. We price from whichever you have.
- Area
- Northamptonshire, England
- Postcodes
- NN14, NN17 and NN18
- Location
- 19 miles west of Peterborough
- Pricing region
- East Midlands
What do extensions for extra rooms in Corby involve?
- Ensuite drainage and extraction
- Fire separation and detection extended to the new space
- Kitchen or bedroom fit-out
- Foundations, structure and roof
- Building control completion
Which rules apply in Corby?
Extensions for extra rooms in Corby must satisfy national law for England, the council’s written HMO standards and, where walls, drainage or fire separation change, the building rules. In short:
- 7 or more sharers is a sui generis large HMO and normally needs planning permission.
- 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.
How much do extensions for extra rooms cost in Corby?
| 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 |
Prices in Corby are shown with our regional adjustment for East Midlands (below the UK average). Your quote is itemised and fixed in writing once the scope and specification are agreed.
How long does it take?
Most jobs of this kind take 8–14 weeks. If a council deadline applies in Corby, tell us at the first call so the programme is built around it.
When do Corby landlords need it?
Landlords in Corby most often ask us for this when:
- Adding a ground-floor room
- Moving to more sharers with consent
Questions about extensions for extra rooms in Corby
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.
How far do you travel from Corby?
We cover the whole of Northamptonshire and work UK-wide. For Corby the nearest towns on our list are Kettering (7 miles), Market Harborough (10 miles), Wellingborough (13 miles).
Does a shared house in Corby need an HMO licence?
In England, a mandatory licence is needed for 5 or more people from 2 or more households. Smaller HMOs can need a licence where the council runs additional licensing, which is common in towns with many shared houses. Check the council’s website for the address.
How much do extensions for extra rooms cost in Corby?
Our guide ranges for East Midlands are in the table on this page, and the guide-price tool gives a figure for your house. A fixed written quote follows a free site visit.
Extensions for extra rooms near Corby
- Kettering · 7 mi
- Market Harborough · 10 mi
- Wellingborough · 13 mi
- Stamford · 14 mi
- Rushden · 15 mi
- Wigston Magna · 18 mi
- All of Northamptonshire