An HMO loft conversion adds one or two letting rooms, often with an ensuite, in the roof space. Landlords in Mitcham (CR4, SM4 and 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
- CR4, SM4 and SW19
- Location
- 8 miles south of London
- Pricing region
- London
What do loft conversions for extra rooms in Mitcham involve?
- Structural design and steelwork
- Dormer or roof windows
- Fire doors and extended alarm system
- Planning or permitted development check
- New stair within the protected route
Which rules apply in Mitcham?
Loft conversions for extra rooms in Mitcham 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.
- 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 Mitcham?
| 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 |
These are typical ranges including VAT, adjusted for London, where costs run above the UK average. The fixed price for a house in Mitcham follows a site visit.
How long does it take?
Most jobs of this kind take 6–10 weeks. If a council deadline applies in Mitcham, tell us at the first call so the programme is built around it.
When do Mitcham landlords need it?
Typical reasons for this work in Mitcham:
- Moving to a larger HMO with the right consents
- A house with usable roof space
Questions about loft conversions for extra rooms in Mitcham
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.
Do you cover all of Mitcham?
Yes. We work across Mitcham and the CR4, SM4 and SW19 postcode areas, plus the rest of Greater London. Nearby places we also cover include Morden, Wimbledon, Streatham.
Does a shared house in Mitcham 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 Mitcham?
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 Mitcham
- Morden · 1 mi
- Wimbledon · 2 mi
- Streatham · 2 mi
- Carshalton · 2 mi
- Wallington · 3 mi
- Croydon · 3 mi
- All of Greater London
Other HMO services in Mitcham
- Extensions for extra rooms in Mitcham
- Large HMO conversions (7+ sharers) in Mitcham
- Escape routes, emergency lighting and fire stopping in Mitcham
- Ensuite installation in Mitcham
- Layout changes and room reconfiguration in Mitcham
- Fire alarm and detection systems in Mitcham
- Commercial and above-shop to HMO in Mitcham
- Rewires and EICR remedials in Mitcham