From £87,016
ProRend is an established and experienced local extension builder in G20. Please contact us for a free, no obligation quote and competitive rates. ...
From £86,928
J & J Property Services is an established extension buildering business in G20. We come highly recommended and provide competitive quotes for your ...
From £87,264
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,944
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £86,984
nest is an established extension buildering business in G20. We come highly recommended and provide competitive quotes for your work.
From £87,024
Whyte homes are here to help customers who need an Extension Builder in G20. We offer a competitive rate to complete all your extension buildering ...
From £87,192
If you’ve been searching for ‘Builder’s near me’ then look no further than KB Contractors . As local Builders, we’ve established...
From £87,280
Relax... you have found a reliable extension builder in G20. Arkiton is a friendly and reliable company based in G20 who consider no job as too big...
From £86,952
Arkiton is one of the first combined architecture and construction companies in Glasgow, founded in 2017 by our in-house architect. Our aim is to s...
From £86,664
Need an Extension Builder in G20? J & S Autos (Glasgow) Ltd has been helping local clients (20 mile radius) with their extension buildering jobs fo...

Building a granny annexe ranges from £86,664 (J & S Autos (Glasgow) Ltd based in G51) to £87,280 (Arkiton based in G1), 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 G20 by posting a job with HaMuch. We will send it to extension builders in G20 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Glasgow | £34 | £258 |
| Granny Annexe near Bearsden | £34 | £262 |
| Granny Annexe near Bishopbriggs | £35 | £262 |
| Granny Annexe near Renfrew | £35 | £264 |
| Granny Annexe near Clydebank | £35 | £264 |
| Granny Annexe near Rutherglen | £34 | £254 |
| Granny Annexe near Giffnock | £35 | £260 |
| Granny Annexe near Paisley | £34 | £259 |
| Granny Annexe near Kirkintilloch | £35 | £259 |
| Granny Annexe near Cambuslang | £34 | £249 |
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 - £17,525

Two storey extension - £88,037

Build a timber frame extension - £26,025

Build a swimming pool - £81,025

Single storey extension - £55,496

Side return extension - £41,779

Install an RSJ - £2,225

Outbuilding - £10,025

Build a Mansard loft conversion - £52,025

Loft conversion - £33,983

Build a kitchen extension - £42,025

Hip to gable loft conversion - £42,025

Granny annexe - £87,025

Garden office - £10,025

Convert a Garage - £16,025

Garage - £18,525

Build a flat roof extension - £22,025

Build a dormer loft conversion - £42,025

Concrete foundations - £6,275

Convert a bungalow loft - £29,025

Convert a basement - £37,779