An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Landlords in Eastbourne (BN20, BN21 and BN22) 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
- East Sussex, England
- Postcodes
- BN20, BN21 and BN22
- Location
- 19 miles east of Brighton
- Pricing region
- South East
What do extensions for extra rooms in Eastbourne involve?
- Party wall coordination where needed
- Kitchen or bedroom fit-out
- Foundations, structure and roof
- Heating, insulation and glazing
- Ensuite drainage and extraction
Which rules apply in Eastbourne?
Extensions for extra rooms in Eastbourne 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:
- 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.
How much do extensions for extra rooms cost in Eastbourne?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £39,200 – £67,200 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £2,000 – £4,500 | m² |
Prices in Eastbourne are shown with our regional adjustment for South East (above the UK average). Your quote is itemised and fixed in writing once the scope and specification are agreed.
How long does it take?
Allow 8–14 weeks on site for a typical job. Drawings, approvals and long-lead items such as kitchens or fire door sets are booked before we start.
When do Eastbourne landlords need it?
We usually get the call when:
- Adding a ground-floor room
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Eastbourne
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.
Which postcodes in Eastbourne do you work in?
All of them, including BN20, BN21 and BN22, and the surrounding parts of East Sussex.
Does a shared house in Eastbourne 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 Eastbourne?
Our guide ranges for South East 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 Eastbourne
- Hailsham · 7 mi
- Seaford · 8 mi
- Bexhill-on-Sea · 10 mi
- Hastings · 14 mi
- Rottingdean · 15 mi
- Brighton · 19 mi
- All of East Sussex
Other HMO services in Eastbourne
- Loft conversions for extra rooms in Eastbourne
- Communal kitchen refits in Eastbourne
- Layout changes and room reconfiguration in Eastbourne
- Large HMO conversions (7+ sharers) in Eastbourne
- Ensuite installation in Eastbourne
- House to HMO conversion in Eastbourne
- Licence condition and schedule-of-works in Eastbourne
- Full HMO refurbishment in Eastbourne