An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. For a house in Canary Wharf we start with a measured survey, check the council’s written HMO standards for the number of sharers, and then price each item separately.
- Area
- Greater London, England
- Postcodes
- E14 and SE16
- Location
- 5 miles east of London
- Council
- London Borough of Tower Hamlets
- Pricing region
- London
What do extensions for extra rooms in Canary Wharf involve?
- Building control completion
- Ensuite drainage and extraction
- Heating, insulation and glazing
- Party wall coordination where needed
- Planning route check and drawings
Which rules apply in Canary Wharf?
Extensions for extra rooms in Canary Wharf 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.
- 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 Tower Hamlets: local HMO schemes
| Article 4 (HMO) | In force across the council area Borough-wide Article 4 Direction (C3 to C4) since 2021. |
|---|---|
| Additional licensing | In force across the council area Borough-wide additional licensing 1 Apr 2024-31 Mar 2029. |
| Selective licensing | No scheme found |
Schemes change. Check the council’s current pages for the exact address in Canary Wharf before you buy or start work. Source: London Borough of Tower Hamlets HMO licensing page, checked 2026-10-31.
How much do extensions for extra rooms cost in Canary Wharf?
| 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 Canary Wharf can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Allow 8–14 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 Canary Wharf landlords need it?
Landlords in Canary Wharf most often ask us for this when:
- Moving to more sharers with consent
- Adding a ground-floor room
Questions about extensions for extra rooms in Canary Wharf
Do you handle building control?
Yes, from application to completion certificate.
Which postcodes in Canary Wharf do you work in?
All of them, including E14 and SE16, and the surrounding parts of Greater London.
Which council covers HMOs in Canary Wharf?
Canary Wharf is covered by London Borough of Tower Hamlets. 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 Canary Wharf?
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 Canary Wharf
- Bow · 1 mi
- Canning Town · 2 mi
- Greenwich · 2 mi
- Stratford · 2 mi
- Peckham · 3 mi
- Blackheath · 3 mi
- All of Greater London
Other HMO services in Canary Wharf
- Loft conversions for extra rooms in Canary Wharf
- Communal kitchen refits in Canary Wharf
- Layout changes and room reconfiguration in Canary Wharf
- Large HMO conversions (7+ sharers) in Canary Wharf
- Ensuite installation in Canary Wharf
- House to HMO conversion in Canary Wharf
- Damp, mould and HHSRS repairs in Canary Wharf
- Student HMO refurbishment in Canary Wharf