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Select your affordable Wellington extension builder
Mark Boobyer
Wellington, TA21
Karesa Developments Ltd is a trusted extension builder serving customers in Wellington and the surrounding area. Contact us to today to get a compe...
Trusted and professional extension builder in Wellington. Experienced in all extension buildering work and keeping within budget and on quote. KEVI...
Andrew Childs
Been installing fascia soffits for over twenty years i profide a very good service
SDP CONSTRUCTION LTD is a trusted extension builder serving customers in Wellington and the surrounding area. Contact us to today to get a competit...
From £86,656
GREEN LID Ltd ta Warm Roofs Direct is an established and experienced local extension builder in Wellington. Please contact us for a free, no obliga...
From £86,760
Corbel Conservation Ltd is an established extension buildering business in Wellington. We come highly recommended and provide competitive quotes fo...
From £86,944
Our building services company JK Building & Refurbishments Ltd have seven years’ experience and have been helping customers in Taunton and the su...

Building a granny annexe ranges from £86,472 (Andrew Childs Fascias, Soffits & Guttering based in TA21) to £87,064 (Karesa Developments Ltd based in TA21), 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 Wellington by posting a job with HaMuch. We will send it to extension builders in Wellington who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Taunton | £31 | £242 |
| Granny Annexe near Tiverton | £25 | £202 |
| Granny Annexe near Bridgwater | £30 | £236 |
| Granny Annexe near East Devon | £27 | £221 |
| Granny Annexe near Exeter | £27 | £221 |
| Granny Annexe near South Somerset | £62 | £270 |
| Granny Annexe near Exmouth | £24 | £210 |
| Granny Annexe near Yeovil | £34 | £294 |
| Granny Annexe near Barry | £33 | £218 |
| Granny Annexe near Weston-super-Mare | £33 | £253 |
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 - £17,294

Two storey extension - £87,691

Build a timber frame extension - £25,794

Build a swimming pool - £80,794

Single storey extension - £50,886

Side return extension - £39,186

Install an RSJ - £1,994

Outbuilding - £9,794

Build a Mansard loft conversion - £51,794

Loft conversion - £31,821

Build a kitchen extension - £41,794

Hip to gable loft conversion - £41,794

Granny annexe - £86,794

Garden office - £9,794

Convert a Garage - £15,794

Garage - £18,294

Build a flat roof extension - £21,794

Build a dormer loft conversion - £41,794

Concrete foundations - £6,044

Convert a bungalow loft - £28,794

Convert a basement - £35,186