An HMO loft conversion adds one or two letting rooms, often with an ensuite, in the roof space. Landlords in Wimbledon (SW19) 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
- SW19
- Location
- 7 miles south-west of London
- Pricing region
- London
What do loft conversions for extra rooms in Wimbledon involve?
- Planning or permitted development check
- Ensuite where space allows
- Building control sign-off
- Feasibility and head-height check
- Structural design and steelwork
Which rules apply in Wimbledon?
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 Wimbledon 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.
- Floor area under a ceiling lower than 1.5 m does not count towards the room size, and many councils set larger sizes.
How much do loft conversions for extra rooms cost in Wimbledon?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Dormer loft conversion, about 30 m² | £40,000 – £60,000 | £51,200 – £76,800 | project |
| Rooflight loft conversion, about 30 m² | £22,500 – £30,000 | £28,800 – £38,400 | project |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Wimbledon can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Typical time on site: 6–10 weeks. We agree the programme with you before starting and send photo updates as the work progresses.
When do Wimbledon landlords need it?
We usually get the call when:
- Adding rooms to make an HMO work financially
- Moving to a larger HMO with the right consents
Questions about loft conversions for extra rooms in Wimbledon
Does adding a loft room change the HMO planning position?
It can. Going from six to seven sharers moves a house into a large HMO in England, which normally needs planning permission. We check before design.
Which postcodes in Wimbledon do you work in?
All of them, including SW19, and the surrounding parts of Greater London.
Does a shared house in Wimbledon 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 loft conversions for extra rooms cost in Wimbledon?
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.
Loft conversions for extra rooms near Wimbledon
- Morden · 2 mi
- Mitcham · 2 mi
- Putney · 3 mi
- New Malden · 3 mi
- Streatham · 3 mi
- Barnes · 4 mi
- All of Greater London
Other HMO services in Wimbledon
- Extensions for extra rooms in Wimbledon
- Large HMO conversions (7+ sharers) in Wimbledon
- Escape routes, emergency lighting and fire stopping in Wimbledon
- Ensuite installation in Wimbledon
- Layout changes and room reconfiguration in Wimbledon
- Fire alarm and detection systems in Wimbledon
- Shared bathroom and shower room refits in Wimbledon
- Student HMO refurbishment in Wimbledon