From £86,928
Nordic Sky Limited is an established and experienced local extension builder in Penshurst. Please contact us for a free, no obligation quote and co...
From £87,024
Spend a Penny Installations Ltd is an established extension buildering business in Penshurst. We come highly recommended and provide competitive qu...
From £86,896
M L Builders & Sons Limited is an established and experienced local extension builder in Penshurst. Please contact us for a free, no obligation quo...
From £87,240
montyandbo is an established and experienced local extension builder in Penshurst. Please contact us for a free, no obligation quote and competitiv...
From £87,160
P & A CONSTRUCTION LIMITED is an established extension buildering business in Penshurst. We come highly recommended and provide competitive quotes ...
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 £87,200
Need an Extension Builder in Penshurst? Design Atelier Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for...
From £87,368
Whether you’re planning a new build, restoration, renovation, refurbishment or if you’re just after a concept design & costing to decide if you...
From £86,952
Relax... you have found a reliable extension builder in Penshurst. Decor-Solutions is a friendly and reliable company based in Penshurst who consid...
From £86,872
DAVID WILLIAMSON CONSTRUCTION is a trusted extension builder serving customers in Penshurst and the surrounding area. Contact us to today to get a ...

Building a granny annexe ranges from £86,320 (Magnoli Home based in TN2) to £87,368 (Design Atelier Ltd based in TN1), 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 Penshurst by posting a job with HaMuch. We will send it to extension builders in Penshurst who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Tonbridge | £33 | £226 |
| Granny Annexe near Tunbridge Wells | £33 | £228 |
| Granny Annexe near Sevenoaks | £34 | £211 |
| Granny Annexe near Larkfield | £36 | £224 |
| Granny Annexe near Crowborough | £31 | £225 |
| Granny Annexe near Maidstone | £36 | £226 |
| Granny Annexe near East Grinstead | £32 | £220 |
| Granny Annexe near Rochester | £34 | £220 |
| Granny Annexe near Caterham | £37 | £235 |
| Granny Annexe near Gravesend | £35 | £227 |
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 - £17,496

Two storey extension - £87,994

Build a timber frame extension - £25,996

Build a swimming pool - £80,996

Single storey extension - £54,920

Side return extension - £41,455

Install an RSJ - £2,196

Outbuilding - £9,996

Build a Mansard loft conversion - £51,996

Loft conversion - £33,713

Build a kitchen extension - £41,996

Hip to gable loft conversion - £41,996

Granny annexe - £86,996

Garden office - £9,996

Convert a Garage - £15,996

Garage - £18,496

Build a flat roof extension - £21,996

Build a dormer loft conversion - £41,996

Concrete foundations - £6,246

Convert a bungalow loft - £28,996

Convert a basement - £37,455