An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In Portslade, a town of about 20,000 people in East Sussex, the work is planned around the HMO rules for England and the council’s written HMO standards.
- Area
- East Sussex, England
- Postcodes
- BN3, BN41 and BN42
- Location
- 3 miles west of Brighton
- Pricing region
- South East
What do extensions for extra rooms in Portslade involve?
- Party wall coordination where needed
- Heating, insulation and glazing
- Foundations, structure and roof
- Ensuite drainage and extraction
- Planning route check and drawings
Which rules apply in Portslade?
The rules below are the England-wide position for this kind of work. Councils add their own standards and schemes on top, so we always check the address in Portslade before we price.
- 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.
- Fire precautions follow a risk assessment; the LACORS Housing – Fire Safety guide (2008) is guidance, not law, but many councils base their standards on it.
- 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 Portslade?
| 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 Portslade can move the figure either way, which is why we quote after seeing the house.
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 Portslade landlords need it?
We usually get the call when:
- Moving to more sharers with consent
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Portslade
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.
Do you cover all of Portslade?
Yes. We work across Portslade and the BN3, BN41 and BN42 postcode areas, plus the rest of East Sussex. Nearby places we also cover include Hove, Brighton, Worthing.
Does a shared house in Portslade 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 Portslade?
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 Portslade
- Hove · 2 mi
- Brighton · 3 mi
- Worthing · 7 mi
- Rottingdean · 7 mi
- Burgess Hill · 9 mi
- Haywards Heath · 12 mi
- All of East Sussex
Other HMO services in Portslade
- Loft conversions for extra rooms in Portslade
- Communal kitchen refits in Portslade
- Layout changes and room reconfiguration in Portslade
- Large HMO conversions (7+ sharers) in Portslade
- Ensuite installation in Portslade
- House to HMO conversion in Portslade
- HMO fire safety upgrades in Portslade
- Fire doors in Portslade