From £86,368
Need to find an Extension Builder near you for all your extension buildering work?
A-Pex Building provides a local, trusted extension build...
From £87,176
Relax... you have found a reliable extension builder in CT1. Clint Construction is a friendly and reliable company based in CT1 who consider no job...
From £86,728
Osprey Property Repairs is a trusted extension builder serving customers in CT1 and the surrounding area. Contact us to today to get a competitive...
From £86,312
All building work , all hoyse maintenance. House extension and refurbishment works.
From £86,056
35 years in the trade can Lay bricks plaster roofing wall and floor tiling
From £87,200
Experienced extension builder ready to quote for your work. SEAN EVANS GENERAL BUILDER is the best extension builder in CT1. No obligation free quo...
From £86,872
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,960
I D S BUILDERS LIMITED is an established extension buildering business in CT1. We come highly recommended and provide competitive quotes for your w...
From £86,656
At Wells & Co we offer a comprehensive building service. We specialise in Period properties, bespoke renovations and steel fabrication.Along with o...
From £86,824
Christian Builders Margate Ltd is a multi-service company founded by Nick Christian. We operate with a highly skilled team of designers, tradesmen,...

Building a granny annexe ranges from £86,056 (S MEGSON CONSTRUCTION based in CT5) to £87,200 (SEAN EVANS GENERAL BUILDER based in ME10), 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 CT1 by posting a job with HaMuch. We will send it to extension builders in CT1 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Canterbury | £31 | £232 |
| Granny Annexe near Whitstable | £28 | £214 |
| Granny Annexe near Herne Bay | £28 | £213 |
| Granny Annexe near Faversham | £34 | £235 |
| Granny Annexe near Swale | £35 | £241 |
| Granny Annexe near Thanet | £27 | £207 |
| Granny Annexe near Folkestone | £31 | £233 |
| Granny Annexe near Ashford | £36 | £256 |
| Granny Annexe near Deal | £26 | £199 |
| Granny Annexe near Hythe | £31 | £228 |
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 - £17,215

Two storey extension - £87,573

Build a timber frame extension - £25,715

Build a swimming pool - £80,715

Single storey extension - £49,304

Side return extension - £38,296

Install an RSJ - £1,915

Outbuilding - £9,715

Build a Mansard loft conversion - £51,715

Loft conversion - £31,080

Build a kitchen extension - £41,715

Hip to gable loft conversion - £41,715

Granny annexe - £86,715

Garden office - £9,715

Convert a Garage - £15,715

Garage - £18,215

Build a flat roof extension - £21,715

Build a dormer loft conversion - £41,715

Concrete foundations - £5,965

Convert a bungalow loft - £28,715

Convert a basement - £34,296