Marylebone High Street

Façade Retention

Demolition

Temporary Works

Piling

RC Basement & RC

Complex Inner City 7 storey demolition on 35 Marylebone High Street whilst retaining the front façade.

High detail separation to bonded concrete beams to the adjoining party wall at 2 levels.

Design and installation of all temporary works schemes including 7 storey façade retention, temporary structural steel propping and piles to existing columns and sheet piling to form new basement.

Excavation of 2 storey basement to be 6.9m deep from existing finish floor level using sheet piles varying from 7m to 11m deep.

Proposed design to the client to reduce the basement raft to offer saving and to avoid the underpinning scheme being affected by the ground water level.

Form a 9 storey in-situ reinforced concrete frame above the new 2 storey basement.