An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Landlords in Welling (DA6 and DA16) 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
- DA6 and DA16
- Location
- 11 miles east of London
- Pricing region
- London
What do extensions for extra rooms in Welling involve?
- Building control completion
- Planning route check and drawings
- Foundations, structure and roof
- Heating, insulation and glazing
- Kitchen or bedroom fit-out
Which rules apply in Welling?
Extensions for extra rooms in Welling 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.
- 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.
- 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 Welling?
| 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 |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Welling 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 Welling landlords need it?
Landlords in Welling 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 Welling
Do you handle building control?
Yes, from application to completion certificate.
Which postcodes in Welling do you work in?
All of them, including DA6 and DA16, and the surrounding parts of Greater London.
Where do I check the HMO rules for an address in Welling?
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 Welling?
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 Welling
- Bexley · 2 mi
- Eltham · 3 mi
- Thamesmead · 3 mi
- Blackheath · 4 mi
- Dartford · 5 mi
- Barking · 5 mi
- All of Greater London