A house to HMO conversion turns a single-family home into a house in multiple occupation: a shared home for unrelated people with private bedrooms and shared kitchen or bathroom space. In Cambridge, a place of roughly 150,000 people, the work is planned around the HMO rules for England and the council’s written HMO standards. With students as well as working sharers renting in Cambridge, we plan bigger jobs for the gap between academic-year tenancies where we can.
- Area
- Cambridgeshire, England
- Postcodes
- CB21, CB22, CB23 and CB24
- Location
- 30 miles south-east of Peterborough
- Council
- Cambridge City Council
- Pricing region
- East of England
What does house to HMO conversion in Cambridge involve?
- Rewiring or upgrades, with an electrical certificate
- Fire doors, fire-rated linings and an interlinked fire alarm
- Layout drawings showing bedrooms, kitchens, bathrooms and the escape route
- Decoration, flooring and a handover pack for licensing
- Extra bathrooms, shower rooms or ensuites
Which rules apply in Cambridge?
The rules below are the England-wide position for this kind of work. Councils add their own standards and schemes on top, so we always check the address in Cambridge before we price.
- Under the Renters’ Rights Act, civil penalties reach £40,000 for offences such as running an unlicensed HMO.
- Licensed HMOs must meet national minimum bedroom sizes: 6.51 m² for one person aged 10 or over, 10.22 m² for two, and 4.64 m² for a child under 10.
- Council standards often step up at 5 and 6 sharers, for example a separate WC at 5 and a second bathroom from 6.
- 3–6 unrelated sharers is use class C4; changing from a family house is usually permitted development unless an Article 4 direction applies.
Cambridge City Council: local HMO schemes
| Article 4 (HMO) | Proposed No small-HMO Article 4 direction in force; after a 2026 petition the council said (July 2026) it is building the case for one. No direction made yet. |
|---|---|
| Additional licensing | No scheme found |
| Selective licensing | No scheme found |
Schemes change. Check the council’s current pages for the exact address in Cambridge before you buy or start work. Source: Cambridge City Council HMO licensing page, checked 2026-10-31.
How much does house to HMO conversion cost in Cambridge?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Typical 3–4 bed house to a 5–6 bed HMO, all-in | £30,000 – £75,000 | £31,800 – £79,500 | project |
| Conversion works per letting room (walls, linings, electrics, decoration; excludes kitchens, bathrooms and fire systems; our estimate) | £3,500 – £6,500 | £3,700 – £6,900 | letting room |
| Ensuite shower room added to a bedroom | £4,000 – £10,000 | £4,250 – £10,600 | ensuite |
| Communal HMO kitchen with extra cooking and sink capacity (our estimate from domestic ranges) | £8,000 – £18,000 | £8,500 – £19,100 | kitchen |
| Interlinked mains alarm system (Grade D type), small HMO (our estimate from installer guides) | £800 – £2,000 | £850 – £2,100 | house |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Cambridge can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Typical time on site: 6–14 weeks. We agree the programme with you before starting and send photo updates as the work progresses.
For student houses in Cambridge, booking by spring is the safest way to make the summer gap.
When do Cambridge landlords need it?
We usually get the call when:
- A family let is moving to room-by-room letting
- You have bought, or are buying, a house to let to sharers
Questions about house to HMO conversion in Cambridge
Do I need planning permission to turn a house into an HMO?
It depends on the nation, the council and the number of sharers. In England, three to six unrelated sharers is use class C4, and moving from a family house is usually permitted development unless the council has an Article 4 direction; seven or more normally needs permission. In Wales a change to an HMO always needs permission, in Northern Ireland all new HMOs need it, and in Scotland council policy decides. We check the address before drawings start.
How far do you travel from Cambridge?
We cover the whole of Cambridgeshire and work UK-wide. For Cambridge the nearest towns on our list are Newmarket (13 miles), Ely (15 miles), Huntingdon (16 miles).
Which council covers HMOs in Cambridge?
Cambridge is covered by Cambridge City Council. We read the council’s written HMO standards before pricing, and you should check the licence position for the exact address.
How much does house to HMO conversion cost in Cambridge?
Our guide ranges for East of England 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.
House to HMO conversion near Cambridge
- Newmarket · 13 mi
- Ely · 15 mi
- Huntingdon · 16 mi
- Haverhill · 16 mi
- Saint Neots · 16 mi
- Letchworth Garden City · 21 mi
- All of Cambridgeshire
Other HMO services in Cambridge
- Small HMO conversions (3–6 sharers) in Cambridge
- Large HMO conversions (7+ sharers) in Cambridge
- HMO fire safety upgrades in Cambridge
- Ensuite installation in Cambridge
- Communal kitchen refits in Cambridge
- Layout changes and room reconfiguration in Cambridge
- Rewires and EICR remedials in Cambridge
- Shared bathroom and shower room refits in Cambridge