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Jon Howard Construction Ltd is a trusted extension builder serving customers in Sawbridgeworth and the surrounding area. Contact us to today to get...
Colin
We are small building company working for the residential and domestic properties? We work on all types of buildings creating Loft conversion and H...
D C Salsbury Builders is an established and experienced local extension builder in Sawbridgeworth. Please contact us for a free, no obligation quot...
Need to find an Extension Builder near you for all your extension buildering work?
JKL Construction & Carpentry Ltd provides a local, trust...
J G BUILDING SERVICES is a trusted extension builder serving customers in Sawbridgeworth and the surrounding area. Contact us to today to get a com...
Dan Nevill
Nevill Design & Build specialises in high-quality house extensions, loft conversions, structural alterations, and full refurbishments. We’ve deli...
LTM Construction is an established and experienced local extension builder in Sawbridgeworth. Please contact us for a free, no obligation quote and...
From £87,424
Hopson Bros Services is a trusted extension builder serving customers in Sawbridgeworth and the surrounding area. Contact us to today to get a comp...
From £87,224
Experienced extension builder ready to quote for your work. Groome & Sons Ltd is the best extension builder in Sawbridgeworth. No obligation free q...
From £87,384
D E BRACKEN BUILDING SERVICES is an established and experienced local extension builder in Sawbridgeworth. Please contact us for a free, no obligat...

Building a granny annexe ranges from £86,912 (J G BUILDING SERVICES based in CM19) to £90,152 (Essex loft extensions Ltd based in CM20), 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 Sawbridgeworth by posting a job with HaMuch. We will send it to extension builders in Sawbridgeworth who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Harlow | £43 | £288 |
| Granny Annexe near Bishop's Stortford | £55 | £276 |
| Granny Annexe near Ware | £47 | £296 |
| Granny Annexe near Hoddesdon | £46 | £296 |
| Granny Annexe near East Hertfordshire | £44 | £289 |
| Granny Annexe near Hertford | £46 | £290 |
| Granny Annexe near Cheshunt | £48 | £285 |
| Granny Annexe near Epping Forest | £44 | £274 |
| Granny Annexe near Loughton | £44 | £273 |
| Granny Annexe near Welwyn Garden City | £42 | £269 |
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 - £18,030

Two storey extension - £88,796

Build a timber frame extension - £26,530

Build a swimming pool - £81,530

Single storey extension - £65,608

Side return extension - £47,467

Install an RSJ - £2,730

Outbuilding - £10,530

Build a Mansard loft conversion - £52,530

Loft conversion - £38,723

Build a kitchen extension - £42,530

Hip to gable loft conversion - £42,530

Granny annexe - £87,530

Garden office - £10,530

Convert a Garage - £16,530

Garage - £19,030

Build a flat roof extension - £22,530

Build a dormer loft conversion - £42,530

Concrete foundations - £6,780

Convert a bungalow loft - £29,530

Convert a basement - £43,467