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We are a small family run business, established over 35 years ago, specialising in Hard Landscaping (Patios) and Block Paving.We a...
Experienced extension builder ready to quote for your work. WH Builders is the best extension builder in Cowbridge. No obligation free quotes and m...
Relax... you have found a reliable extension builder in Cowbridge. WESTGATE BUILDING SERVICES LTD is a friendly and reliable company based in Cowbr...
S J S Services (Wales) Ltd is a trusted extension builder serving customers in Cowbridge and the surrounding area. Contact us to today to get a com...
Need an Extension Builder in Cowbridge? SP Property Maintenance has been helping local clients (20 mile radius) with their extension buildering job...
Blueprint Construction & Development Ltd is a trusted extension builder serving customers in Cowbridge and the surrounding area. Contact us to toda...
From £87,056
Eddie Dyer
We only use fully qualified and skilled workers .
We offer value for money with full 12 month guarantee on all work carried out.
From £87,064
Keith Brito
40 years building and roofing experience.
20 years disabled facilities. Roofing general building, tiling,carpentry.
Val...
From £86,504
Cowbridge, CF71
Need to find an Extension Builder near you for all your extension buildering work?
Price Builders provides a local, trusted extension build...
From £86,800
Scorpion Windows LTD is a trusted extension builder serving customers in Cowbridge and the surrounding area. Contact us to today to get a competiti...

Building a granny annexe ranges from £86,504 (Price Builders based in CF71) to £87,600 (Blueprint Construction & Development Ltd based in CF62), 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 Cowbridge by posting a job with HaMuch. We will send it to extension builders in Cowbridge who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Vale of Glamorgan | £29 | £217 |
| Granny Annexe near Bridgend | £32 | £200 |
| Granny Annexe near Barry | £33 | £223 |
| Granny Annexe near Church Village | £34 | £214 |
| Granny Annexe near Porthcawl | £33 | £252 |
| Granny Annexe near Rhondda | £31 | £206 |
| Granny Annexe near Pontypridd | £33 | £211 |
| Granny Annexe near Pyle | £34 | £262 |
| Granny Annexe near Penarth | £35 | £224 |
| Granny Annexe near Cardiff | £34 | £223 |
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 - £17,402

Two storey extension - £87,852

Build a timber frame extension - £25,902

Build a swimming pool - £80,902

Single storey extension - £53,032

Side return extension - £40,393

Install an RSJ - £2,102

Outbuilding - £9,902

Build a Mansard loft conversion - £51,902

Loft conversion - £32,828

Build a kitchen extension - £41,902

Hip to gable loft conversion - £41,902

Granny annexe - £86,902

Garden office - £9,902

Convert a Garage - £15,902

Garage - £18,402

Build a flat roof extension - £21,902

Build a dormer loft conversion - £41,902

Concrete foundations - £6,152

Convert a bungalow loft - £28,902

Convert a basement - £36,393