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Double-storey basement in Earl's Court
Case study · Earl's Court, London SW5

Double-storey basement in Earl's Court

A double-storey basement excavation under a terraced property in Earl's Court — sequenced underpinning, reinforced concrete box structure and full structural waterproofing.

The project

A double-storey basement under an existing terraced house in Earl’s Court — one of the most demanding forms of basement construction in London. Two full levels were formed below the property, with the house occupied-ready above and neighbouring buildings tight on both sides.

What we did

  • Sequenced underpinning to the structural engineer’s pin-by-pin design
  • Deep excavation with temporary works and propping throughout
  • Reinforced concrete retaining walls and slabs forming the new two-level box
  • Drainage, sump and pump installation
  • Structural waterproofing to make both levels ready for habitable fit-out

Why it matters

A double-storey dig leaves no margin for improvisation: every stage is inspected, every pin recorded, every prop in place before the next cut. This is the kind of project we build our reputation on.

Planning something similar? Talk to us about your basement or see our basement excavation service.

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