An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In Wood Green, a town of about 28,000 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
- N22
- Location
- 6 miles north of London
- Council
- London Borough of Haringey
- Pricing region
- London
What do extensions for extra rooms in Wood Green involve?
- Party wall coordination where needed
- Building control completion
- Foundations, structure and roof
- Kitchen or bedroom fit-out
- Heating, insulation and glazing
Which rules apply in Wood Green?
Extensions for extra rooms in Wood Green 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.
- 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 Haringey: local HMO schemes
| Article 4 (HMO) | In force in part of the council area Article 4 Direction (C3 to C4) in force since 2013 for the area set out on the council's map. |
|---|---|
| Additional licensing | In force across the council area Borough-wide additional licensing (all 21 wards) 17 Jun 2024-16 Jun 2029, approved 12 Mar 2024. |
| Selective licensing | In force in part of the council area Selective licensing in 14 eastern wards (incl. Tottenham, Northumberland Park, Seven Sisters, Noel Park) 17 Nov 2022-16 Nov 2027. |
Schemes change. Check the council’s current pages for the exact address in Wood Green before you buy or start work. Source: London Borough of Haringey HMO licensing page, checked 2026-10-31.
How much do extensions for extra rooms cost in Wood Green?
| 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 |
Prices in Wood Green 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?
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 Wood Green landlords need it?
We usually get the call when:
- Moving to more sharers with consent
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Wood Green
Do you handle building control?
Yes, from application to completion certificate.
Do you cover all of Wood Green?
Yes. We work across Wood Green and the N22 postcode areas, plus the rest of Greater London. Nearby places we also cover include Muswell Hill, Tottenham, Archway.
Which council covers HMOs in Wood Green?
Wood Green is covered by London Borough of Haringey. 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 Wood Green?
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 Wood Green
- Muswell Hill · 1 mi
- Tottenham · 2 mi
- Archway · 2 mi
- Stamford Hill · 3 mi
- Edmonton · 3 mi
- Holloway · 3 mi
- All of Greater London
Other HMO services in Wood Green
- Loft conversions for extra rooms in Wood Green
- Communal kitchen refits in Wood Green
- Layout changes and room reconfiguration in Wood Green
- Large HMO conversions (7+ sharers) in Wood Green
- Ensuite installation in Wood Green
- House to HMO conversion in Wood Green
- Void and between-tenancy refurbs in Wood Green
- HMO fire safety upgrades in Wood Green