An HMO extension adds space to a shared house, usually a ground-floor bedroom with ensuite or a bigger communal kitchen. Landlords in Tonbridge (TN9 and TN11) usually come to us with a council letter, a fire risk assessment or a house they have just bought. We price from whichever you have.
- Area
- Kent, England
- Postcodes
- TN9 and TN11
- Location
- 28 miles south-east of London
- Pricing region
- South East
What do extensions for extra rooms in Tonbridge involve?
- Fire separation and detection extended to the new space
- Planning route check and drawings
- Ensuite drainage and extraction
- Party wall coordination where needed
- Heating, insulation and glazing
Which rules apply in Tonbridge?
Here is what usually applies to a Tonbridge 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.
- Fire precautions follow a risk assessment; the LACORS Housing – Fire Safety guide (2008) is guidance, not law, but many councils base their standards on it.
- National rules ask for an adequate number of bathrooms, WCs and basins and suitably located kitchens; numeric ratios are set by each council.
How much do extensions for extra rooms cost in Tonbridge?
| 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 |
Prices in Tonbridge are shown with our regional adjustment for South East (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 Tonbridge landlords need it?
Landlords in Tonbridge most often ask us for this when:
- Adding a ground-floor room
- A kitchen too small for the number of sharers
Questions about extensions for extra rooms in Tonbridge
Is a kitchen extension worth it?
Often, when the existing kitchen limits how many people the council will allow. A bigger kitchen can unlock an extra room.
How far do you travel from Tonbridge?
We cover the whole of Kent and work UK-wide. For Tonbridge the nearest towns on our list are Royal Tunbridge Wells (4 miles), Sevenoaks (6 miles), Crowborough (10 miles).
Where do I check the HMO rules for an address in Tonbridge?
With the local council for the address. Councils in England can add additional licensing and Article 4 directions on top of the national rules. Check the council’s website for the exact address before you buy or start work.
How much do extensions for extra rooms cost in Tonbridge?
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 Tonbridge
- Royal Tunbridge Wells · 4 mi
- Sevenoaks · 6 mi
- Crowborough · 10 mi
- Maidstone · 12 mi
- East Grinstead · 13 mi
- Swanley · 15 mi
- All of Kent
Other HMO services in Tonbridge
- Loft conversions for extra rooms in Tonbridge
- Communal kitchen refits in Tonbridge
- Layout changes and room reconfiguration in Tonbridge
- Large HMO conversions (7+ sharers) in Tonbridge
- Ensuite installation in Tonbridge
- House to HMO conversion in Tonbridge
- Fire alarm and detection systems in Tonbridge
- Professional and co-living HMO refurbs in Tonbridge