An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. In Wembley, a town of around 90,000 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
- HA0, HA9 and UB6
- Location
- 8 miles west of London
- Council
- London Borough of Brent
- Pricing region
- London
What do extensions for extra rooms in Wembley involve?
- Kitchen or bedroom fit-out
- Heating, insulation and glazing
- Foundations, structure and roof
- Party wall coordination where needed
- Ensuite drainage and extraction
Which rules apply in Wembley?
Here is what usually applies to a Wembley 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.
- The Fire Safety Order 2005 applies to the common parts of HMOs, enforced by the fire and rescue authority.
- Council standards often step up at 5 and 6 sharers, for example a separate WC at 5 and a second bathroom from 6.
London Borough of Brent: local HMO schemes
| Article 4 (HMO) | In force across the council area Borough-wide Article 4 Direction (C3 to C4) since 1 Nov 2022. |
|---|---|
| Additional licensing | In force across the council area Borough-wide additional licensing in force 2 Feb 2026 to 1 Feb 2031. |
| Selective licensing | In force in part of the council area All wards except Wembley Park: Dollis Hill, Harlesden & Kensal Green, Willesden Green 1 Aug 2023-31 Jul 2028; 18 further wards 1 Apr 2024-31 Mar 2029. |
Schemes change. Check the council’s current pages for the exact address in Wembley before you buy or start work. Source: London Borough of Brent HMO licensing page, checked 2026-10-31.
How much do extensions for extra rooms cost in Wembley?
| 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 |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Wembley can move the figure either way, which is why we quote after seeing the house.
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 Wembley landlords need it?
Landlords in Wembley most often ask us for this when:
- Moving to more sharers with consent
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Wembley
Will the extension affect neighbours?
Possibly, if it is on or near a boundary. Party wall procedures may apply in England and Wales.
How far do you travel from Wembley?
We cover the whole of Greater London and work UK-wide. For Wembley the nearest towns on our list are Brent (0 miles), Harrow (2 miles), Greenford (3 miles).
Which council covers HMOs in Wembley?
Wembley is covered by London Borough of Brent. 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 Wembley?
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 Wembley
- Brent · 0 mi
- Harrow · 2 mi
- Greenford · 3 mi
- Willesden · 3 mi
- Northolt · 3 mi
- Acton · 3 mi
- All of Greater London
Other HMO services in Wembley
- Loft conversions for extra rooms in Wembley
- Communal kitchen refits in Wembley
- Layout changes and room reconfiguration in Wembley
- Large HMO conversions (7+ sharers) in Wembley
- Ensuite installation in Wembley
- House to HMO conversion in Wembley
- Escape routes, emergency lighting and fire stopping in Wembley
- Sound insulation in Wembley