An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Muswell Hill is 6 miles north of London. We price extensions for extra rooms there against England’s HMO rules and the council’s written HMO standards, so work is planned to the standard an inspection looks for.
- Area
- Greater London, England
- Postcodes
- N2 and N10
- Location
- 6 miles north of London
- Pricing region
- London
What do extensions for extra rooms in Muswell Hill involve?
- Planning route check and drawings
- Ensuite drainage and extraction
- Kitchen or bedroom fit-out
- Party wall coordination where needed
- Heating, insulation and glazing
Which rules apply in Muswell Hill?
Here is what usually applies to a Muswell Hill job of this kind. It is general information rather than legal advice, and the council’s written HMO standards have the final detail.
- 3–6 unrelated sharers is use class C4; changing from a family house is usually permitted development unless an Article 4 direction applies.
- 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.
- Council standards often step up at 5 and 6 sharers, for example a separate WC at 5 and a second bathroom from 6.
How much do extensions for extra rooms cost in Muswell Hill?
| 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 Muswell Hill 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 Muswell Hill landlords need it?
Landlords in Muswell Hill most often ask us for this when:
- A kitchen too small for the number of sharers
- Moving to more sharers with consent
Questions about extensions for extra rooms in Muswell Hill
Can I extend an HMO under permitted development?
Some extensions to houses are permitted development, but rules differ for HMOs and by nation and council. We check the address before design.
Do you cover all of Muswell Hill?
Yes. We work across Muswell Hill and the N2 and N10 postcode areas, plus the rest of Greater London. Nearby places we also cover include Wood Green, Archway, Finchley.
Does a shared house in Muswell Hill 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 extensions for extra rooms cost in Muswell Hill?
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 Muswell Hill
- Wood Green · 1 mi
- Archway · 2 mi
- Finchley · 2 mi
- Holloway · 3 mi
- Chalk Farm · 3 mi
- Tottenham · 3 mi
- All of Greater London
Other HMO services in Muswell Hill
- Loft conversions for extra rooms in Muswell Hill
- Communal kitchen refits in Muswell Hill
- Layout changes and room reconfiguration in Muswell Hill
- Large HMO conversions (7+ sharers) in Muswell Hill
- Ensuite installation in Muswell Hill
- House to HMO conversion in Muswell Hill
- Bedroom upgrades and room refits in Muswell Hill
- Damp, mould and HHSRS repairs in Muswell Hill