From £25,848
We offer Concept Design ideas for you to see what your room, house, office space can look like.
From £26,064
RJB Construction and Joinery is a trusted extension builder serving customers in LS21 and the surrounding area. Contact us to today to get a compet...

A timber frame extension built in LS21 typically ranges from £25,848 (CB Concept Design based in LS20) to £26,064 (RJB Construction and Joinery based in LS20), but this will vary depending on the size of your extension, the design features you'd like and what your soil is like for the foundations.
Comparing extension builders estimates for building a timber frame extension gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build a timber frame extension in LS21 by posting a job with HaMuch and we'll send it to extension builders in LS21.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Timber Frame Extension near Shipley | £29 | £226 |
| Build A Timber Frame Extension near Pudsey | £30 | £226 |
| Build A Timber Frame Extension near Bingley | £30 | £228 |
| Build A Timber Frame Extension near Harrogate | £29 | £225 |
| Build A Timber Frame Extension near Bradford | £29 | £224 |
| Build A Timber Frame Extension near Chapeltown | £30 | £232 |
| Build A Timber Frame Extension near Leeds | £31 | £236 |
| Build A Timber Frame Extension near Keighley | £30 | £226 |
| Build A Timber Frame Extension near Beeston | £31 | £236 |
| Build A Timber Frame Extension near Morley | £31 | £239 |
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 - £17,456

Two storey extension - £87,934

Build a timber frame extension - £25,956

Build a swimming pool - £80,956

Single storey extension - £54,120

Side return extension - £41,005

Install an RSJ - £2,156

Outbuilding - £9,956

Build a Mansard loft conversion - £51,956

Loft conversion - £33,338

Build a kitchen extension - £41,956

Hip to gable loft conversion - £41,956

Granny annexe - £86,956

Garden office - £9,956

Convert a Garage - £15,956

Garage - £18,456

Build a flat roof extension - £21,956

Build a dormer loft conversion - £41,956

Concrete foundations - £6,206

Convert a bungalow loft - £28,956

Convert a basement - £37,005