From £87,048
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in Stratford. No obligation free q...
From £87,184
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in Stratford. No obligation free quotes...
From £87,312
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £87,560
Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...
From £87,096
Experienced extension builder ready to quote for your work. Mr is the best extension builder in Stratford. No obligation free quotes and many happy...
From £86,984
JK Doors is a trusted extension builder serving customers in Stratford and the surrounding area. Contact us to today to get a competitive quote for...
From £87,192
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
From £87,392
Need an Extension Builder in Stratford? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for ma...
From £87,312
skilled worker who specializes in completing a wide range of building and renovation projects
From £87,616
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in Stratford and the surrounding area. Contact us to today to get ...

Building a granny annexe ranges from £86,984 (JK Doors based in W1W) to £87,616 (HOUSE BUILDING SERVICES LIMITED based in DA16), 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 Stratford by posting a job with HaMuch. We will send it to extension builders in Stratford who will be happy to help you.
| Borough in London |
|---|
| Granny Annexe in Stratford |
| Granny Annexe in Forest Gate |
| Granny Annexe in Plaistow |
| Granny Annexe in Bow |
| Granny Annexe in Homerton |
| Granny Annexe in Leytonstone |
| Granny Annexe in Leyton |
| Granny Annexe in Canning Town |
| Granny Annexe in Manor Park |
| Granny Annexe in East Ham |
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 - £17,770

Two storey extension - £88,404

Build a timber frame extension - £26,270

Build a swimming pool - £81,270

Single storey extension - £60,392

Side return extension - £44,533

Install an RSJ - £2,470

Outbuilding - £10,270

Build a Mansard loft conversion - £52,270

Loft conversion - £36,278

Build a kitchen extension - £42,270

Hip to gable loft conversion - £42,270

Granny annexe - £87,270

Garden office - £10,270

Convert a Garage - £16,270

Garage - £18,770

Build a flat roof extension - £22,270

Build a dormer loft conversion - £42,270

Concrete foundations - £6,520

Convert a bungalow loft - £29,270

Convert a basement - £40,533