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SH Enterprise
Need the extension buildering job done quickly without breaking the bank? SH Enterprise offer fast, reliable, and affordable extension buildering s...
Torrington
Torrington Design
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO
A to Z Builders Ltd
A to Z Builders Ltd are here to help customers who need an Extension Builder in SE1. We offer a competitive rate to complete all your extension bui...
Cornerstones Construction
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in SE1. No obligation free quot...
JM Building Services
JM Building Services is a trusted extension builder serving customers in SE1 and the surrounding area. Contact us to today to get a competitive quo...
DUWIX BUILDING MAINTENANCE
DUWIX BUILDING MAINTENANCE are here to help customers who need an Extension Builder in SE1. We offer a competitive rate to complete all your extens...
Building and Plastering Solution
Peter Cesma
Experienced builder in all aspects of building works. All work guaranteed. Quality finish, promt ,honest and reliable services. Public liabil...
Home Tranformers Ltd
At Home Tranformers Ltd we have been fitting bespoke bathrooms for over 10 years. We pride ourselves on being the go-to bathroom fitters for discer...
F & F Building Services
F & F Building Services is an established extension buildering business in SE1. We come highly recommended and provide competitive quotes for your ...
Ask Building
Need to find an Extension Builder near you for all your extension buildering work?
Ask Building provides a local, trusted extension builder...
Cost of a two storey extension in SE1
Costs range from £87,964 (A to Z Builders Ltd based in SW1P) to £88,684 (Ask Building based in SE1), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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- How much does a two storey extension cost?
- Factors affecting the cost of a double storey extension
- How much value does a two storey extension add to a property?
- Types of two storey extension
- How long does a two storey extension take to build?
- Do you need planning permission for a two storey extension?
- What is the 45-degree rule for two storey extensions?
- Do you need an architect for an extension?
- How to finance an extension
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Estimates for common extension builder jobs in SE1;
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 - £17,672
Two storey extension - £88,258
Build a timber frame extension - £26,172
Build a swimming pool - £81,172
Single storey extension - £58,440
Side return extension - £43,435
Install an RSJ - £2,372
Outbuilding - £10,172
Build a Mansard loft conversion - £52,172
Loft conversion - £35,363
Build a kitchen extension - £42,172
Hip to gable loft conversion - £42,172
Granny annexe - £87,172
Garden office - £10,172
Convert a Garage - £16,172
Garage - £18,672
Build a flat roof extension - £22,172
Build a dormer loft conversion - £42,172
Concrete foundations - £6,422
Convert a bungalow loft - £29,172
Convert a basement - £39,435