From £88,096
I have been in the building industry for 28 years and have carried out extensions,loft conversions, knock throughs, plastering, carpentry,roofing a...
From £87,892
JEWEL BUILDERS LTD are here to help customers who need an Extension Builder in Knowle. We offer a competitive rate to complete all your extension b...
From £87,676
Form Construction Midlands Limited is a trusted extension builder serving customers in Knowle and the surrounding area. Contact us to today to get ...
From £87,928
AKS BUILDING LIMITED is a trusted extension builder serving customers in Knowle and the surrounding area. Contact us to today to get a competitive ...
From £87,952
Need to find an Extension Builder near you for all your extension buildering work?
Timber Innovations provides a local, trusted extension b...
From £87,736
Need an Extension Builder in Knowle? Hampton Group has been helping local clients (20 mile radius) with their extension buildering jobs for many ye...
From £87,376
S J Byrne Construction Limited is a trusted extension builder serving customers in Knowle and the surrounding area. Contact us to today to get a co...
From £87,952
We are a forward thinking, award winning design and build company based in Solihull in the West Midlands. We strive to deliver the best experience ...
From £87,916
Need to find an Extension Builder near you for all your extension buildering work?
Avonvale Garage Doors provides a local, trusted extensio...
From £87,592
Relax... you have found a reliable extension builder in Knowle. F.I.I Building Services Ltd is a friendly and reliable company based in Knowle who ...

Costs range from £87,376 (S J Byrne Construction Limited based in B90) to £88,096 (MYBUILD based in B93), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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"Building two bedrooms above current garage to make a dormant bungalow into 4 bedrooms instead of 2 bedrooms." - B93
"Two storey extension" - SOLIHULL
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Two Storey Extension near Knowle | £31 | £241 |
| Two Storey Extension near Solihull | £29 | £231 |
| Two Storey Extension near Kenilworth | £29 | £224 |
| Two Storey Extension near Coventry | £28 | £222 |
| Two Storey Extension near Warwick | £28 | £213 |
| Two Storey Extension near Birmingham | £29 | £227 |
| Two Storey Extension near Leamington Spa | £27 | £212 |
| Two Storey Extension near Sutton Coldfield | £29 | £228 |
| Two Storey Extension near Smethwick | £29 | £226 |
| Two Storey Extension near Bedworth | £28 | £219 |
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 - £17,374

Two storey extension - £87,812

Build a timber frame extension - £25,874

Build a swimming pool - £80,874

Single storey extension - £52,488

Side return extension - £40,087

Install an RSJ - £2,074

Outbuilding - £9,874

Build a Mansard loft conversion - £51,874

Loft conversion - £32,573

Build a kitchen extension - £41,874

Hip to gable loft conversion - £41,874

Granny annexe - £86,874

Garden office - £9,874

Convert a Garage - £15,874

Garage - £18,374

Build a flat roof extension - £21,874

Build a dormer loft conversion - £41,874

Concrete foundations - £6,124

Convert a bungalow loft - £28,874

Convert a basement - £36,087