An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In Peckham, a town of around 70,000 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
- SE5 and SE15
- Location
- 3 miles south-east of London
- Council
- London Borough of Southwark
- Pricing region
- London
What do extensions for extra rooms in Peckham involve?
- Ensuite drainage and extraction
- Kitchen or bedroom fit-out
- Foundations, structure and roof
- Planning route check and drawings
- Heating, insulation and glazing
Which rules apply in Peckham?
Extensions for extra rooms in Peckham 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:
- 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.
- Smoke alarms on every storey with living accommodation and CO alarms by fixed combustion appliances (other than gas cookers) are required by law.
- National rules ask for an adequate number of bathrooms, WCs and basins and suitably located kitchens; numeric ratios are set by each council.
London Borough of Southwark: local HMO schemes
| Article 4 (HMO) | In force in part of the council area Article 4 directions apply to specific streets and sites (from 2014); no borough-wide small-HMO direction found. |
|---|---|
| Additional licensing | In force across the council area Borough-wide additional licensing effective 1 Mar 2022 (to 28 Feb 2027). |
| Selective licensing | In force in part of the council area Faraday, Goose Green, St Giles, Champion Hill, Newington from 1 Mar 2022 (to 28 Feb 2027); 14 further wards 1 Nov 2023-31 Oct 2028. |
Schemes change. Check the council’s current pages for the exact address in Peckham before you buy or start work. Source: London Borough of Southwark HMO licensing page, checked 2026-10-31.
How much do extensions for extra rooms cost in Peckham?
| 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 |
These are typical ranges including VAT, adjusted for London, where costs run above the UK average. The fixed price for a house in Peckham follows a site visit.
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 Peckham landlords need it?
We usually get the call when:
- Moving to more sharers with consent
- Adding a ground-floor room
Questions about extensions for extra rooms in Peckham
Will the extension affect neighbours?
Possibly, if it is on or near a boundary. Party wall procedures may apply in England and Wales.
Which postcodes in Peckham do you work in?
All of them, including SE5 and SE15, and the surrounding parts of Greater London.
Which council covers HMOs in Peckham?
Peckham is covered by London Borough of Southwark. We read the council’s written HMO standards before pricing, and you should check the licence position for the exact address.
How much do extensions for extra rooms cost in Peckham?
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 Peckham
- Brixton · 2 mi
- Greenwich · 3 mi
- Catford · 3 mi
- Canary Wharf · 3 mi
- Pimlico · 3 mi
- City of Westminster · 3 mi
- All of Greater London
Other HMO services in Peckham
- Loft conversions for extra rooms in Peckham
- Communal kitchen refits in Peckham
- Layout changes and room reconfiguration in Peckham
- Large HMO conversions (7+ sharers) in Peckham
- Ensuite installation in Peckham
- House to HMO conversion in Peckham
- Full HMO refurbishment in Peckham
- Shared bathroom and shower room refits in Peckham