An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Chatham is 30 miles east 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. With students as well as working sharers renting in Chatham, we plan bigger jobs for the gap between academic-year tenancies where we can.
- Area
- Kent, England
- Postcodes
- ME1, ME4, ME5 and ME7
- Location
- 30 miles east of London
- Council
- Medway Council
- Pricing region
- South East
What do extensions for extra rooms in Chatham involve?
- Foundations, structure and roof
- Kitchen or bedroom fit-out
- Planning route check and drawings
- Building control completion
- Heating, insulation and glazing
Which rules apply in Chatham?
Extensions for extra rooms in Chatham 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.
Medway Council: local HMO schemes
| Article 4 (HMO) | In force in part of the council area Article 4 Direction for seven wards (Chatham Central & Brompton, Fort Pitt, Gillingham North/South, Luton, Strood North & Frindsbury, Watling), approved 16 Dec 2025, in force Jan 2026. |
|---|---|
| Additional licensing | Approved, starts 4 Jan 2027 Six wards (Chatham Central & Brompton, Fort Pitt, Gillingham North and South, Luton, Watling), 4 Jan 2027 to 3 Jan 2032. |
| Selective licensing | Approved, starts 4 Jan 2027 Seven wards (as additional licensing plus Strood North & Frindsbury), 4 Jan 2027 to 3 Jan 2032. |
Schemes change. Check the council’s current pages for the exact address in Chatham before you buy or start work. Source: Medway Council HMO licensing page, checked 2026-10-31.
How much do extensions for extra rooms cost in Chatham?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Single-storey extension, about 15 m² | £35,000 – £60,000 | £39,200 – £67,200 | project |
| Single-storey extension per m² | £1,800 – £4,000 | £2,000 – £4,500 | m² |
Use these as a starting point for budgeting. Access, condition and the council’s requirements in Chatham can move the figure either way, which is why we quote after seeing the house.
How long does it take?
Most jobs of this kind take 8–14 weeks. If a council deadline applies in Chatham, tell us at the first call so the programme is built around it.
For student houses in Chatham, booking by spring is the safest way to make the summer gap.
When do Chatham landlords need it?
We usually get the call when:
- A kitchen too small for the number of sharers
- Adding a ground-floor room
Questions about extensions for extra rooms in Chatham
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 Chatham?
We cover the whole of Kent and work UK-wide. For Chatham the nearest towns on our list are Gillingham (1 miles), Rochester (1 miles), Strood (2 miles).
Which council covers HMOs in Chatham?
Chatham is covered by Medway Council. 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 Chatham?
Our guide ranges for South East 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 Chatham
- Gillingham · 1 mi
- Rochester · 1 mi
- Strood · 2 mi
- Maidstone · 8 mi
- Gravesend · 8 mi
- Sittingbourne · 9 mi
- All of Kent
Other HMO services in Chatham
- Loft conversions for extra rooms in Chatham
- Communal kitchen refits in Chatham
- Layout changes and room reconfiguration in Chatham
- Large HMO conversions (7+ sharers) in Chatham
- Ensuite installation in Chatham
- House to HMO conversion in Chatham
- Void and between-tenancy refurbs in Chatham
- Fire alarm and detection systems in Chatham