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Rafix Building
Rafal Szczepanski
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...
WT Construction Service Ltd
Need the extension buildering job done quickly without breaking the bank? WT Construction Service Ltd offer fast, reliable, and affordable extensio...
New Finishes
New Finishes is a trusted extension builder serving customers in N20 and the surrounding area. Contact us to today to get a competitive quote for e...
Pavillion Building Services
Relax... you have found a reliable extension builder in N20. Pavillion Building Services is a friendly and reliable company based in N20 who consid...
Homeland Building Ltd
Homeland Building Ltd is a trusted extension builder serving customers in N20 and the surrounding area. Contact us to today to get a competitive qu...
Wittick Building Ltd
Wittick Building Ltd is a trusted extension builder serving customers in N20 and the surrounding area. Contact us to today to get a competitive quo...
Roni Lofts Conversions Ltd
Need an Extension Builder in N20? Roni Lofts Conversions Ltd has been helping local clients (10 mile radius) with their extension buildering jobs f...
Onyx Iv
Ivaylo Shkodrov
Extremely reliable service . Flexibility, correct, listening customer. Wide experience.
Taylor Construction Services Ltd
Relax... you have found a reliable extension builder in N20. Taylor Construction Services Ltd is a friendly and reliable company based in N20 who c...
Raf's Building Service
Need to find an Extension Builder near you for all your extension buildering work?
Raf's Building Service provides a local, trusted extensi...
Cost of a two storey extension in N20
Costs range from £86,980 (Onyx Iv based in N11) to £88,840 (Rafix Building based in EN4), 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 N20;
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 - £17,607
Two storey extension - £88,161
Build a timber frame extension - £26,107
Build a swimming pool - £81,107
Single storey extension - £57,144
Side return extension - £42,706
Install an RSJ - £2,307
Outbuilding - £10,107
Build a Mansard loft conversion - £52,107
Loft conversion - £34,755
Build a kitchen extension - £42,107
Hip to gable loft conversion - £42,107
Granny annexe - £87,107
Garden office - £10,107
Convert a Garage - £16,107
Garage - £18,607
Build a flat roof extension - £22,107
Build a dormer loft conversion - £42,107
Concrete foundations - £6,357
Convert a bungalow loft - £29,107
Convert a basement - £38,706