An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Landlords in Seaford (BN25) 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
- BN25
- Location
- 11 miles east of Brighton
- Pricing region
- South East
What do extensions for extra rooms in Seaford involve?
- Heating, insulation and glazing
- Ensuite drainage and extraction
- Party wall coordination where needed
- Kitchen or bedroom fit-out
- Planning route check and drawings
Which rules apply in Seaford?
Extensions for extra rooms in Seaford 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.
- A conversion can be a material change of use under the building regulations, so confirm with building control before work starts.
- The Fire Safety Order 2005 applies to the common parts of HMOs, enforced by the fire and rescue authority.
- Council standards often step up at 5 and 6 sharers, for example a separate WC at 5 and a second bathroom from 6.
How much do extensions for extra rooms cost in Seaford?
| 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 |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Seaford can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Typical time on site: 8–14 weeks. We agree the programme with you before starting and send photo updates as the work progresses.
When do Seaford landlords need it?
Typical reasons for this work in Seaford:
- Moving to more sharers with consent
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Seaford
Will the extension affect neighbours?
Possibly, if it is on or near a boundary. Party wall procedures may apply in England and Wales.
How far do you travel from Seaford?
We cover the whole of East Sussex and work UK-wide. For Seaford the nearest towns on our list are Rottingdean (8 miles), Eastbourne (8 miles), Hailsham (9 miles).
Where do I check the HMO rules for an address in Seaford?
With the local council for the address. 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 Seaford?
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 Seaford
- Rottingdean · 8 mi
- Eastbourne · 8 mi
- Hailsham · 9 mi
- Brighton · 11 mi
- Hove · 12 mi
- Portslade · 15 mi
- All of East Sussex
Other HMO services in Seaford
- Loft conversions for extra rooms in Seaford
- Communal kitchen refits in Seaford
- Layout changes and room reconfiguration in Seaford
- Large HMO conversions (7+ sharers) in Seaford
- Ensuite installation in Seaford
- House to HMO conversion in Seaford
- Student HMO refurbishment in Seaford
- Licence condition and schedule-of-works in Seaford