From £87,024
Spend a Penny Installations Ltd is an established extension buildering business in TN10. We come highly recommended and provide competitive quotes ...
From £86,896
M L Builders & Sons Limited is an established and experienced local extension builder in TN10. Please contact us for a free, no obligation quote an...
From £86,928
Nordic Sky Limited is an established and experienced local extension builder in TN10. Please contact us for a free, no obligation quote and competi...
From £87,240
montyandbo is an established and experienced local extension builder in TN10. Please contact us for a free, no obligation quote and competitive rat...
From £86,872
DAVID WILLIAMSON CONSTRUCTION is a trusted extension builder serving customers in TN10 and the surrounding area. Contact us to today to get a compe...
From £87,008
TJ RALPH BUILDINGS SERVICES is a trusted extension builder serving customers in TN10 and the surrounding area. Contact us to today to get a competi...
From £87,160
P & A CONSTRUCTION LIMITED is an established extension buildering business in TN10. We come highly recommended and provide competitive quotes for y...
From £86,320
MAGNOLIA HOME is family run,Tunbridge Wells based building company,.With years expirence,you as the customer can be assured that you are in safe ha...
From £86,880
PADMANS BUILDERS is a trusted extension builder serving customers in TN10 and the surrounding area. Contact us to today to get a competitive quote ...
From £86,832
DS BUILDERS is an established extension buildering business in TN10. We come highly recommended and provide competitive quotes for your work.

Building a granny annexe ranges from £86,320 (Magnoli Home based in TN2) to £87,240 (Montyandbo based in TN4), 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 TN10 by posting a job with HaMuch. We will send it to extension builders in TN10 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Tonbridge | £38 | £254 |
| Granny Annexe near Tunbridge Wells | £37 | £258 |
| Granny Annexe near Sevenoaks | £38 | £234 |
| Granny Annexe near Larkfield | £41 | £253 |
| Granny Annexe near Maidstone | £40 | £255 |
| Granny Annexe near Crowborough | £36 | £258 |
| Granny Annexe near East Grinstead | £37 | £259 |
| Granny Annexe near Rochester | £39 | £254 |
| Granny Annexe near Gravesend | £40 | £260 |
| Granny Annexe near Northfleet | £41 | £261 |
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 - £17,416

Two storey extension - £87,874

Build a timber frame extension - £25,916

Build a swimming pool - £80,916

Single storey extension - £53,320

Side return extension - £40,555

Install an RSJ - £2,116

Outbuilding - £9,916

Build a Mansard loft conversion - £51,916

Loft conversion - £32,963

Build a kitchen extension - £41,916

Hip to gable loft conversion - £41,916

Granny annexe - £86,916

Garden office - £9,916

Convert a Garage - £15,916

Garage - £18,416

Build a flat roof extension - £21,916

Build a dormer loft conversion - £41,916

Concrete foundations - £6,166

Convert a bungalow loft - £28,916

Convert a basement - £36,555