House extension costs · Central London
House extension costs in Central London.
Extension costs are driven by size, structure, glazing and the kitchen or living space that goes inside. We price from your drawings, or help you get them prepared.
Central London work ranges from flats and townhouses to commercial premises.
What affects the price.
Size and storeys
Single-storey, double-storey, side-return or wrap-around.
Foundations
Ground conditions, trees and drains can change the foundation design.
Steelwork
Opening up the back of the house usually needs structural steel.
Glazing
Sliding doors, rooflights and slim-frame glass vary widely.
Kitchen and finishes
Kitchen supply, flooring and heating choices.
Party walls
Work on a shared boundary needs the party wall process.
Other areas
Pricing work in Central London?
Send us your plans for a tailored estimate.