An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Landlords in South Croydon (CR0, CR7 and CR8) 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
- Greater London, England
- Postcodes
- CR0, CR7 and CR8
- Location
- 10 miles south of London
- Pricing region
- London
What do extensions for extra rooms in South Croydon involve?
- Heating, insulation and glazing
- Planning route check and drawings
- Party wall coordination where needed
- Ensuite drainage and extraction
- Kitchen or bedroom fit-out
Which rules apply in South Croydon?
Extensions for extra rooms in South Croydon 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.
- A conversion can be a material change of use under the building regulations, so confirm with building control before work starts.
- Smoke alarms on every storey with living accommodation and CO alarms by fixed combustion appliances (other than gas cookers) are required by law.
- 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 South Croydon?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £44,800 – £76,800 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £2,300 – £5,100 | m² |
Prices in South Croydon are shown with our regional adjustment for London (above 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 South Croydon, tell us at the first call so the programme is built around it.
When do South Croydon landlords need it?
Landlords in South Croydon most often ask us for this when:
- Moving to more sharers with consent
- Adding a ground-floor room
Questions about extensions for extra rooms in South Croydon
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.
How far do you travel from South Croydon?
We cover the whole of Greater London and work UK-wide. For South Croydon the nearest towns on our list are Croydon (1 miles), Purley (2 miles), Wallington (3 miles).
Does a shared house in South Croydon 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 South Croydon?
Our guide ranges for London 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 South Croydon
- Croydon · 1 mi
- Purley · 2 mi
- Wallington · 3 mi
- Carshalton · 3 mi
- Coulsdon · 4 mi
- Mitcham · 4 mi
- All of Greater London
Other HMO services in South Croydon
- Loft conversions for extra rooms in South Croydon
- Communal kitchen refits in South Croydon
- Layout changes and room reconfiguration in South Croydon
- Large HMO conversions (7+ sharers) in South Croydon
- Ensuite installation in South Croydon
- House to HMO conversion in South Croydon
- Professional and co-living HMO refurbs in South Croydon
- Shared bathroom and shower room refits in South Croydon