How Much Do  House Extensions Cost ? 

Want to find out estimated costs and prices for Home Extensions in London?

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Choose Your Extension

Small Rear Flat Roof : £55,000

Small Rear Extension - £55000

Small Rear Flat Roof (1) : £55,000

Small Rear Extension

Small Rear Flat Roof (2) : £55,000

Small Rear Extension

Small Rear Flat Roof (3) : £55,000

Small Rear Extension

Small Rear Flat Roof (4) : £55,000

Small Rear Extension

Small Rear Flat Roof (5) : £55,000

Small Rear Extension

Medium Rear Flat Roof : £90,000

Medium Rear Extension - £90000

Medium Rear Flat Roof (1) : £90,000

Medium Rear Extension

Medium Rear Flat Roof (2) : £90,000

Medium Rear Extension

Medium Rear Flat Roof (3) : £90,000

Medium Rear Extension

Medium Rear Flat Roof (4) : £90,000

Medium Rear Extension

Medium Rear Flat Roof (5) : £90,000

Medium Rear Extension

Medium Rear Crown Roof : £90,000

Medium Rear Extension

Medium Rear Crown Roof (1) : £90,000

Medium Rear Extension

Medium Rear Crown Roof (2) : £90,000

Medium Rear Extension

Medium Rear Crown Roof (3) : £90,000

Medium Rear Extension

Medium Rear Crown Roof (4) : £90,000

Medium Rear Extension

Medium Rear Crown Roof (5) : £90,000

Medium Rear Extension

Wraparound Flat Roof : £145,000

Wraparound Flat Extension

Wraparound Flat Roof (1) : £145,000

Wraparound Flat Extension

Wraparound Flat Roof (2) : £145,000

Wraparound Flat Extension

Wraparound Flat Roof (3) : £145,000

Wraparound Flat Extension

Wraparound Flat Roof (4) : £145,000

Wraparound Flat Extension

Wraparound Flat Roof (5) : £145,000

Wraparound Flat Extension

Wraparound Crown Roof : £165,000

Wraparound Crown Extension

Wraparound Crown Roof (1) : £165,000

Wraparound Crown Extension

Wraparound Crown Roof (2) : £165,000

Wraparound Crown Extension

Wraparound Crown Roof (3) : £165,000

Wraparound Crown Extension

Wraparound Crown Roof (4) : £165,000

Wraparound Crown Extension

Wraparound Crown Roof (5) : £165,000

Wraparound Crown Extension

Rear Flat Roof : £50,000

3m X 3m Rear Extension

Rear Flat Roof (1) : £50,000

3m X 3m Rear Extension

Rear Flat Roof (2) : £50,000

3m X 3m Rear Extension

Rear Flat Roof (3) : £50,000

3m X 3m Rear Extension

Rear Flat Roof (4) : £50,000

3m X 3m Rear Extension

Rear Flat Roof (5) : £50,000

3m X 3m Rear Extension

3 m Rear Flat Roof : £65,000

3m Rear Extension

3 m Rear Flat Roof (1) : £65,000

3m Rear Extension

3 m Rear Flat Roof (2) : £65,000

3m Rear Extension

3 m Rear Flat Roof (3) : £65,000

3m Rear Extension

3 m Rear Flat Roof (4) : £65,000

3m Rear Extension

3 m Rear Flat Roof (5) : £65,000

3m Rear Extension

Rear Crown Roof : £65,000

3m Rear Extension

Rear Crown Roof (1) : £65,000

3m Rear Extension

Rear Crown Roof (2) : £65,000

3m Rear Extension

Rear Crown Roof (3) : £65,000

3m Rear Extension

Rear Crown Roof (4) : £65,000

3m Rear Extension

Rear Crown Roof (5) : £65,000

3m Rear Extension

Small Side Flat Roof : £50,000

Small Side Return Extension

Small Side Flat Roof (1) : £50,000

Small Side Return Extension

Small Side Flat Roof (2) : £50,000

Small Side Return Extension

Small Side Flat Roof (3) : £50,000

Small Side Return Extension

Small Side Flat Roof (4) : £50,000

Small Side Return Extension

Small Side Flat Roof (5) : £50,000

Small Side Return Extension

Medium Side Flat Roof : £60,000

Medium Side Return Extension

Medium Side Flat Roof (1) : £60,000

Medium Side Return Extension

Medium Side Flat Roof (2) : £60,000

Medium Side Return Extension

Medium Side Flat Roof (3) : £60,000

Medium Side Return Extension

Medium Side Flat Roof (4) : £60,000

Medium Side Return Extension

Medium Side Flat Roof (5) : £60,000

Medium Side Return Extension

Large Side Flat Roof : £65,000

Large Side Return Extension

Large Side Flat Roof (1) : £65,000

Large Side Return Extension

Large Side Flat Roof (2) : £65,000

Large Side Return Extension

Large Side Flat Roof (3) : £65,000

Large Side Return Extension

Large Side Flat Roof (4) : £65,000

Large Side Return Extension

Large Side Flat Roof (5) : £65,000

Large Side Return Extension

Small Side Pitched Roof : £50,000

Small Side Return Extension

Small Side Pitched Roof (1) : £50,000

Small Side Return Extension

Small Side Pitched Roof (2) : £50,000

Small Side Return Extension

Small Side Pitched Roof (3) : £50,000

Small Side Return Extension

Small Side Pitched Roof (4) : £50,000

Small Side Return Extension

Small Side Pitched Roof (5) : £50,000

Small Side Return Extension

Medium Side Pitched Roof : £60,000

Medium Side Return Extension

Medium Side Pitched Roof (1) : £60,000

Medium Side Return Extension

Medium Side Pitched Roof (2) : £60,000

Medium Side Return Extension

Medium Side Pitched Roof (3) : £60,000

Medium Side Return Extension

Medium Side Pitched Roof (4) : £60,000

Medium Side Return Extension

Medium Side Pitched Roof (5) : £60,000

Medium Side Return Extension

Large Side Pitched Roof : £65,000

Large Side Return Extension

Large Side Pitched Roof (1) : £65,000

Large Side Return Extension

Large Side Pitched Roof (2) : £65,000

Large Side Return Extension

Large Side Pitched Roof (3) : £65,000

Large Side Return Extension

Large Side Pitched Roof (4) : £65,000

Large Side Return Extension

Large Side Pitched Roof (5) : £65,000

Large Side Return Extension

Small Rear-Side Pitched-Flat Roof : £70,000

Small Rear & Side Extension

Small Rear-Side Pitched-Flat Roof (2) : £70,000

Small Rear & Side Extension

Small Rear-Side Pitched-Flat Roof (3) : £70,000

Small Rear & Side Extension

Medium Rear-Side Pitched-Flat Roof : £75,000

Medium Rear & Side Extension

Medium Rear-Side Pitched-Flat Roof (2) : £75,000

Medium Rear & Side Extension

Medium Rear-Side Pitched-Flat Roof (3) : £75,000

Medium Rear & Side Extension

Large Rear-Side Pitched-Flat Roof : £85,000

Large Rear & Side Extension

Large Rear-Side Pitched-Flat Roof (2) : £85,000

Large Rear & Side Extension

Large Rear-Side Pitched-Flat Roof (3) : £85,000

Large Rear & Side Extension

Rear Flat Roof : £65,000

3m Rear Extension

Rear Flat Roof (1) : £65,000

3m Rear Extension

Rear Flat Roof (2) : £65,000

3m Rear Extension

Rear Flat Roof (3) : £65,000

3m Rear Extension

Rear Flat Roof (4) : £65,000

3m Rear Extension

Rear Flat Roof (5) : £65,000

3m Rear Extension

Medium Rear Flat Roof : £90,000

Medium Rear Extension

Medium Rear Flat Roof (1) : £90,000

Medium Rear Extension

Medium Rear Flat Roof (2) : £90,000

Medium Rear Extension

Medium Rear Flat Roof (3) : £90,000

Medium Rear Extension

Medium Rear Flat Roof (4) : £90,000

Medium Rear Extension

Medium Rear Flat Roof (5) : £90,000

Medium Rear Extension

3m Rear Crown Roof : £65,000

3m Rear Extension

3m Rear Crown Roof (1) : £65,000

3m Rear Extension

3m Rear Crown Roof (2) : £65,000

3m Rear Extension

3m Rear Crown Roof (3) : £65,000

3m Rear Extension

3m Rear Crown Roof (4) : £65,000

3m Rear Extension

3m Rear Crown Roof (5) : £65,000

3m Rear Extension

Medium Rear Crown Roof : £90,000

Medium Rear Extension

Medium Rear Crown Roof (1) : £90,000

Medium Rear Extension

Medium Rear Crown Roof (2) : £90,000

Medium Rear Extension

Medium Rear Crown Roof (3) : £90,000

Medium Rear Extension

Medium Rear Crown Roof (4) : £90,000

Medium Rear Extension

Medium Rear Crown Roof (5) : £90,000

Medium Rear Extension

Rear Flat Roof : £65,000

3m Rear Extension

Rear Flat Roof (2) : £65,000

3m Rear Extension

Rear Flat Roof (3) : £65,000

3m Rear Extension

3m Rear Crown Roof : £65,000

3m Rear Extension

3m Rear Crown Roof (2) : £65,000

3m Rear Extension

3m Rear Crown Roof (3) : £65,000

3m Rear Extension

3m x 3m Rear Flat Roof : £65,000

3m x 3m Rear Extension

3m x 3m Rear Flat Roof (3) : £65,000

3m x 3m Rear Extension

3m x 3m Rear Flat Roof (2) : £65,000

3m x 3m Rear Extension

Small Side Flat Roof : £50,000

Small Side Return Extension

Small Side Flat Roof (2) : £50,000

Small Side Return Extension

Small Side Flat Roof (3) : £50,000

Small Side Return Extension

Medium Side Flat Roof : £60,000

Medium Side Return Extension

Medium Side Flat Roof (2) : £60,000

Medium Side Return Extension

Medium Side Flat Roof (3) : £60,000

Medium Side Return Extension

Large Side Flat Roof : £65,000

Large Side Return Extension

Large Side Flat Roof (2) : £65,000

Large Side Return Extension

Large Side Flat Roof (3) : £65,000

Large Side Return Extension

Small Side Pitched Roof : £50,000

Small Side Return Extension

Small Side Pitched Roof (2) : £50,000

Small Side Return Extension

Small Side Pitched Roof (3) : £50,000

Small Side Return Extension

Medium Side Pitched Roof : £60,000

Medium Side Return Extension

Medium Side Pitched Roof (2) : £60,000

Medium Side Return Extension

Medium Side Pitched Roof (3) : £60,000

Medium Side Return Extension

Large Side Pitched Roof : £65,000

Large Side Return Extension

Large Side Pitched Roof (2) : £65,000

Large Side Return Extension

Large Side Pitched Roof (3) : £65,000

Large Side Return Extension

Small Wraparound Pitched Roof : £70,000

Small Wraparound Extension

Small Wraparound Pitched Roof (2) : £70,000

Small Wraparound Extension

Small Wraparound Pitched Roof (3) : £70,000

Small Wraparound Extension

Small Wraparound Pitched Roof (1) : £70,000

Small Wraparound Extension

Small Wraparound Pitched Roof (4) : £70,000

Small Wraparound Extension

Small Wraparound Pitched Roof (5) : £70,000

Small Wraparound Extension

Small Wraparound Pitched Roof End of T : £70,000

Small Wraparound Extension

Small Wraparound Pitched Roof End of T (2) : £70,000

Small Wraparound Extension

Small Wraparound Pitched Roof End of T (3) : £70,000

Small Wraparound Extension

Medium Wraparound Pitched Roof End of T : £80,000

Medium Wraparound Extension

Medium Wraparound Pitched Roof End of T (2) : £80,000

Medium Wraparound Extension

Medium Wraparound Pitched Roof End of T (3) : £80,000

Medium Wraparound Extension

Large Wraparound Pitched Roof End of T : £90,000

Large Wraparound Extension

Large Wraparound Pitched Roof End of T (2) : £90,000

Large Wraparound Extension

Large Wraparound Pitched Roof End of T (3) : £90,000

Large Wraparound Extension

Small Wraparound Gable Roof End of T : £70,000

Small Wraparound Extension

Small Wraparound Gable Roof End of T (2) : £70,000

Small Wraparound Extension

Small Wraparound Gable Roof End of T (3) : £70,000

Small Wraparound Extension

Medium Wraparound Gable Roof End of T : £80,000

Medium Wraparound Extension

Medium Wraparound Gable Roof End of T (2) : £80,000

Medium Wraparound Extension

Medium Wraparound Gable Roof End of T (3) : £80,000

Medium Wraparound Extension

Large Wraparound Gable Roof End of T : £90,000

Large Wraparound Extension

Large Wraparound Gable Roof End of T (2) : £90,000

Large Wraparound Extension

Large Wraparound Gable Roof End of T (3) : £90,000

Large Wraparound Extension

Small Wraparound Flat Roof End of T : £70,000

Small Wraparound Extension

Small Wraparound Flat Roof End of T (2) : £70,000

Small Wraparound Extension

Small Wraparound Flat Roof End of T (3) : £70,000

Small Wraparound Extension

Medium Wraparound Flat Roof End of T : £80,000

Medium Wraparound Extension

Medium Wraparound Flat Roof End of T (2) : £80,000

Medium Wraparound Extension

Medium Wraparound Flat Roof End of T (3) : £80,000

Medium Wraparound Extension

Large Wraparound Flat Roof End of T : £90,000

Large Wraparound Extension

Large Wraparound Flat Roof End of T (2) : £90,000

Large Wraparound Extension

Large Wraparound Flat Roof End of T (3) : £90,000

Large Wraparound Extension

Medium Wraparound Pitched Roof : £80,000

Medium Wraparound Extension

Medium Wraparound Pitched Roof (1) : £80,000

Medium Wraparound Extension

Medium Wraparound Pitched Roof (2) : £80,000

Medium Wraparound Extension

Medium Wraparound Pitched Roof (3) : £80,000

Medium Wraparound Extension

Medium Wraparound Pitched Roof (4) : £80,000

Medium Wraparound Extension

Medium Wraparound Pitched Roof (5) : £80,000

Medium Wraparound Extension

Large Wraparound Pitched Roof : £90,000

Large Wraparound Extension

Large Wraparound Pitched Roof (1) : £90,000

Large Wraparound Extension

Large Wraparound Pitched Roof (2) : £90,000

Large Wraparound Extension

Large Wraparound Pitched Roof (3) : £90,000

Large Wraparound Extension

Large Wraparound Pitched Roof (4) : £90,000

Large Wraparound Extension

Large Wraparound Pitched Roof (5) : £90,000

Large Wraparound Extension

Small Wraparound Gable Roof : £70,000

Small Wraparound Extension

Small Wraparound Gable Roof (1) : £70,000

Small Wraparound Extension

Small Wraparound Gable Roof (2) : £70,000

Small Wraparound Extension

Small Wraparound Gable Roof (3) : £70,000

Small Wraparound Extension

Small Wraparound Gable Roof (4) : £70,000

Small Wraparound Extension

Small Wraparound Gable Roof (5) : £70,000

Small Wraparound Extension

Medium Wraparound Gable Roof : £80,000

Medium Wraparound Extension

Medium Wraparound Gable Roof (1) : £80,000

Medium Wraparound Extension

Medium Wraparound Gable Roof (2) : £80,000

Medium Wraparound Extension

Medium Wraparound Gable Roof (3) : £80,000

Medium Wraparound Extension

Medium Wraparound Gable Roof (4) : £80,000

Medium Wraparound Extension

Medium Wraparound Gable Roof (5) : £80,000

Medium Wraparound Extension

Large Wraparound Gable Roof : £90,000

Large Wraparound Extension

Large Wraparound Gable Roof (1) : £90,000

Large Wraparound Extension

Large Wraparound Gable Roof (2) : £90,000

Large Wraparound Extension

Large Wraparound Gable Roof (3) : £90,000

Large Wraparound Extension

Large Wraparound Gable Roof (4) : £90,000

Large Wraparound Extension

Large Wraparound Gable Roof (5) : £90,000

Large Wraparound Extension

Small Wraparound Flat Roof : £70,000

Small Wraparound Extension

Small Wraparound Flat Roof (1) : £70,000

Small Wraparound Extension

Small Wraparound Flat Roof (2) : £70,000

Small Wraparound Extension

Small Wraparound Flat Roof (3) : £70,000

Small Wraparound Extension

Small Wraparound Flat Roof (4) : £70,000

Small Wraparound Extension

Small Wraparound Flat Roof (5) : £70,000

Small Wraparound Extension

Medium Wraparound Flat Roof : £80,000

Medium Wraparound Extension

Medium Wraparound Flat Roof (1) : £80,000

Medium Wraparound Extension

Medium Wraparound Flat Roof (2) : £80,000

Medium Wraparound Extension

Medium Wraparound Flat Roof (3) : £80,000

Medium Wraparound Extension

Medium Wraparound Flat Roof (4) : £80,000

Medium Wraparound Extension

Medium Wraparound Flat Roof (5) : £80,000

Medium Wraparound Extension

Large Wraparound Flat Roof : £90,000

Large Wraparound Extension

Large Wraparound Flat Roof (1) : £90,000

Large Wraparound Extension

Large Wraparound Flat Roof (2) : £90,000

Large Wraparound Extension

Large Wraparound Flat Roof (3) : £90,000

Large Wraparound Extension

Large Wraparound Flat Roof (4) : £90,000

Large Wraparound Extension

Large Wraparound Flat Roof (5) : £90,000

Large Wraparound Extension

Small Side & Rear Pitched-Flat Roof : £70,000

Small Side & Rear Extension

Small Side & Rear Pitched-Flat Roof (1) : £70,000

Small Side & Rear Extension

Small Side & Rear Pitched-Flat Roof (2) : £70,000

Small Side & Rear Extension

Small Side & Rear Pitched-Flat Roof (3) : £70,000

Small Side & Rear Extension

Small Side & Rear Pitched-Flat Roof (4) : £70,000

Small Side & Rear Extension

Small Side & Rear Pitched-Flat Roof (5) : £70,000

Small Side & Rear Extension

Medium Side & Rear Pitched-Flat Roof : £75,000

Medium Side & Rear Extension

Medium Side & Rear Pitched-Flat Roof (1) : £75,000

Medium Side & Rear Extension

Medium Side & Rear Pitched-Flat Roof (2) : £75,000

Medium Side & Rear Extension

Medium Side & Rear Pitched-Flat Roof (3) : £75,000

Medium Side & Rear Extension

Medium Side & Rear Pitched-Flat Roof (4) : £75,000

Medium Side & Rear Extension

Medium Side & Rear Pitched-Flat Roof (5) : £75,000

Medium Side & Rear Extension

Large Side & Rear Pitched-Flat Roof : £85,000

large Side & Rear Extension

Large Side & Rear Pitched-Flat Roof (1) : £85,000

large Side & Rear Extension

Large Side & Rear Pitched-Flat Roof (2) : £85,000

large Side & Rear Extension

Large Side & Rear Pitched-Flat Roof (3) : £85,000

large Side & Rear Extension

Large Side & Rear Pitched-Flat Roof (4) : £85,000

large Side & Rear Extension

Large Side & Rear Pitched-Flat Roof (5) : £85,000

large Side & Rear Extension

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