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What is the cost of a
Home Extension?

Being our most frequently asked question..

We know price is the most important factor when it comes to renovating your property. Therefore we’ve created this page to provide clear, upfront pricing estimates on what to expect for different types of Home Extensions in the London area​​

What we've accounted for..

Our estimated costs for loft conversions include construction, electrics, plumbing, glazing & VAT

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Small Rear Extension

Estimated Price:
£70,000
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Potential Value Increase:

10-15%

Side Extension

Estimated Price:
£70,000
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Potential Value Increase:

10-15%

Large Side & Rear Extension

Estimated Price:
£120,00
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Potential Value Increase:

20-25%

Rear Extension

Estimated Price:
£90,000
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Potential Value Increase:

15-20%

Large Side Extension

Estimated Price:
£95,000
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Potential Value Increase:

15-20%

Wrap-around Extension

Estimated Price:
£200,000+
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Potential Value Increase:

25-30%

Large Rear Extension

Estimated Price:
£135,000
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Potential Value Increase:

20-25%

Side & Rear Extension

Estimated Price:
£100,000
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Potential Value Increase:

15-20%

Two-Storey Extension

Estimated Price:
£200,000
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Potential Value Increase:

25-30%

Last updated: 17/02/2025

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