An HMO loft conversion adds one or two letting rooms, often with an ensuite, in the roof space. Landlords in Blackheath (SE3 and SE13) 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
- SE3 and SE13
- Location
- 6 miles south-east of London
- Pricing region
- London
What do loft conversions for extra rooms in Blackheath involve?
- Planning or permitted development check
- Feasibility and head-height check
- New stair within the protected route
- Building control sign-off
- Fire doors and extended alarm system
Which rules apply in Blackheath?
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 Blackheath before we price.
- 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.
- Licensed HMOs must meet national minimum bedroom sizes: 6.51 m² for one person aged 10 or over, 10.22 m² for two, and 4.64 m² for a child under 10.
How much do loft conversions for extra rooms cost in Blackheath?
| 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 Blackheath can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Allow 6–10 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 Blackheath landlords need it?
Landlords in Blackheath most often ask us for this when:
- A house with usable roof space
- Adding rooms to make an HMO work financially
Questions about loft conversions for extra rooms in Blackheath
Will the loft room count for licensing?
Only the floor area with at least 1.5 metres of headroom counts towards the room size in England.
Which postcodes in Blackheath do you work in?
All of them, including SE3 and SE13, and the surrounding parts of Greater London.
Does a shared house in Blackheath 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 Blackheath?
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 Blackheath
- Greenwich · 1 mi
- Catford · 2 mi
- Eltham · 2 mi
- Canary Wharf · 3 mi
- Peckham · 3 mi
- Canning Town · 3 mi
- All of Greater London
Other HMO services in Blackheath
- Extensions for extra rooms in Blackheath
- Large HMO conversions (7+ sharers) in Blackheath
- Escape routes, emergency lighting and fire stopping in Blackheath
- Ensuite installation in Blackheath
- Layout changes and room reconfiguration in Blackheath
- Fire alarm and detection systems in Blackheath
- Professional and co-living HMO refurbs in Blackheath
- Bedroom upgrades and room refits in Blackheath