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S J S Services (Wales) Ltd is a trusted extension builder serving customers in CF71 and the surrounding area. Contact us to today to get a competit...

Building a granny annexe ranges from £86,784 (S J S Services (Wales) Ltd based in CF72) to £86,784 (S J S Services (Wales) Ltd based in CF72), 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 CF71 by posting a job with HaMuch. We will send it to extension builders in CF71 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 - £17,284

Two storey extension - £87,676

Build a timber frame extension - £25,784

Build a swimming pool - £80,784

Single storey extension - £50,680

Side return extension - £39,070

Install an RSJ - £1,984

Outbuilding - £9,784

Build a Mansard loft conversion - £51,784

Loft conversion - £31,725

Build a kitchen extension - £41,784

Hip to gable loft conversion - £41,784

Granny annexe - £86,784

Garden office - £9,784

Convert a Garage - £15,784

Garage - £18,284

Build a flat roof extension - £21,784

Build a dormer loft conversion - £41,784

Concrete foundations - £6,034

Convert a bungalow loft - £28,784

Convert a basement - £35,070