An HMO loft conversion adds one or two letting rooms, often with an ensuite, in the roof space. In Catford, a town of around 45,000 people in Greater London, the work is planned around the HMO rules for England and the council’s written HMO standards.
- Area
- Greater London, England
- Postcodes
- SE6 and SE23
- Location
- 6 miles south-east of London
- Council
- London Borough of Lewisham
- Pricing region
- London
What do loft conversions for extra rooms in Catford involve?
- Ensuite where space allows
- Structural design and steelwork
- Feasibility and head-height check
- Planning or permitted development check
- Fire doors and extended alarm system
Which rules apply in Catford?
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 Catford before we price.
- 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.
- Smoke alarms on every storey with living accommodation and CO alarms by fixed combustion appliances (other than gas cookers) are required by law.
- 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.
London Borough of Lewisham: local HMO schemes
| Article 4 (HMO) | In force across the council area Direction for southern wards from 2020, extended to the rest of the borough from 2024. |
|---|---|
| Additional licensing | In force across the council area Borough-wide additional licensing 5 Apr 2022-4 Apr 2027. |
| Selective licensing | In force in part of the council area Selective licensing in 18 of 19 wards (excludes Telegraph Hill and parts of Blackheath) from 1 Jul 2024 to 30 Jun 2029. |
Schemes change. Check the council’s current pages for the exact address in Catford before you buy or start work. Source: London Borough of Lewisham HMO licensing page, checked 2026-10-31.
How much do loft conversions for extra rooms cost in Catford?
| 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 |
Prices in Catford 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?
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 Catford landlords need it?
Landlords in Catford 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 Catford
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.
How far do you travel from Catford?
We cover the whole of Greater London and work UK-wide. For Catford the nearest towns on our list are Blackheath (2 miles), Greenwich (2 miles), Beckenham (3 miles).
Which council covers HMOs in Catford?
Catford is covered by London Borough of Lewisham. We read the council’s written HMO standards before pricing, and you should check the licence position for the exact address.
How much do loft conversions for extra rooms cost in Catford?
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 Catford
- Blackheath · 2 mi
- Greenwich · 2 mi
- Beckenham · 3 mi
- Peckham · 3 mi
- Eltham · 3 mi
- Brixton · 4 mi
- All of Greater London
Other HMO services in Catford
- Extensions for extra rooms in Catford
- Large HMO conversions (7+ sharers) in Catford
- Escape routes, emergency lighting and fire stopping in Catford
- Ensuite installation in Catford
- Layout changes and room reconfiguration in Catford
- Fire alarm and detection systems in Catford
- Full HMO refurbishment in Catford
- Fire doors in Catford