From £87,088
We are a family run, specialist loft conversions company who design and build lofts and extensions in the South East and we pride ourselves on prov...
From £87,184
Roka Interiors is an established and experienced local extension builder in West Malling. Please contact us for a free, no obligation quote and com...
From £86,816
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,904
Frisby Building have over 60 years of experience working in the building industry around Kent, specialising in kitchen and bathroom installations a...
From £86,984
Relax... you have found a reliable extension builder in West Malling. ARTBUILD LTD is a friendly and reliable company based in West Malling who con...
From £86,968
Delamere Building Services is an established extension buildering business in West Malling. We come highly recommended and provide competitive quot...
From £87,088
Kitchen and Project Installations are here to help customers who need an Extension Builder in West Malling. We offer a competitive rate to complete...
From £86,776
Relax... you have found a reliable extension builder in West Malling. Carey Property Development Ltd is a friendly and reliable company based in We...
From £86,912
Need to find an Extension Builder near you for all your extension buildering work?
Flisher Construction Ltd provides a local, trusted exten...
From £86,872
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Building a granny annexe ranges from £86,776 (Carey Property Development Ltd based in ME1) to £87,184 (Roka Interiors based in ME19), but these are just estimates that can help give you an idea of who will be better value in your area.
The best thing to do is to get quotes to build a granny annexe in West Malling by posting a job with HaMuch. We will send it to extension builders in West Malling who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Larkfield | £41 | £253 |
| Granny Annexe near Maidstone | £40 | £255 |
| Granny Annexe near Rochester | £39 | £254 |
| Granny Annexe near Chatham | £39 | £254 |
| Granny Annexe near Gillingham | £39 | £253 |
| Granny Annexe near Tonbridge | £38 | £254 |
| Granny Annexe near Gravesend | £40 | £260 |
| Granny Annexe near Sevenoaks | £38 | £234 |
| Granny Annexe near Northfleet | £41 | £261 |
| Granny Annexe near Tunbridge Wells | £37 | £258 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,459

Two storey extension - £87,939

Build a timber frame extension - £25,959

Build a swimming pool - £80,959

Single storey extension - £54,184

Side return extension - £41,041

Install an RSJ - £2,159

Outbuilding - £9,959

Build a Mansard loft conversion - £51,959

Loft conversion - £33,368

Build a kitchen extension - £41,959

Hip to gable loft conversion - £41,959

Granny annexe - £86,959

Garden office - £9,959

Convert a Garage - £15,959

Garage - £18,459

Build a flat roof extension - £21,959

Build a dormer loft conversion - £41,959

Concrete foundations - £6,209

Convert a bungalow loft - £28,959

Convert a basement - £37,041