Location
City of Westminster
Main Contractor
Keltbray Ltd
Value
£91m
Project Length
Introduction

Chelsea Barracks is located in West London on the border of the City of Westminster and the Royal Borough of Kensington and Chelsea. As the name suggests the site was a former Barracks up until it was sold in 2007 for the construction of a high specification private residential development. Keltbray was brought on board for a number of phases of the development.

The MOD sold Chelsea Barracks in the mid 2000s and the new owners, Qatari Diar, commenced with the construction of a high end residential development in 2013. Keltbray’s scope of works was to excavate the three level deep Basement for Phases 1 and 2 of the development which covered an area of some 14500m2. The average excavation depth was 9.5m from existing ground which meant excavating and disposing some 138000m3 of made ground and London clay off site. We also had to design and install the required propping to the perimeter of the site.

Where possible, we used horizontal flying shores from capping beam to capping beam across the extent of the 53m long site. The material was excavated using 30T tracked excavators and loaded into lorries for disposal off site. The lorries gained access to the dig area via a ramp cut into the batter. They were passed through a wheel wash facility prior to leaving the site. Keltbray had to introduce a dewatering system around the perimeter of the site comprising of well holes and associated pipework and pumps.