Waterproofing the Warwick Court Redevelopment, London

6 August 2021


Basement type: Refurbishment Building type: Commercial
Type of waterproofing: Type A

Member: Newton Waterproofing Systems

Warwick Court, the former Goldman Sach’s headquarters on Paternoster Square in London, is being redeveloped. The £60m development involves expanding the floor space to 300,000 sq ft.

As part of the large-scale redevelopment project, two basement levels were required to accommodate a car park, loading bay, plant rooms and storage. 


The Solution

The main contractor approached Newton and their specialist contractor to specify a waterproof and hard-wearing coating system for the floor of the plant rooms. As a result, the specialist contractor designed and installed a watertight system utilising Newton 110 WATstop and Newton 701-HB. 

Firstly, after the surface had been properly prepared, the fibre-reinforced cement/epoxy workable mortar 110 WATstop was applied as a waterproofing layer to the floor of the plant rooms, providing a smooth surface that also repairs the surface of concrete. 

Secondly, the epoxy resin-based floor coating 701-HB, was applied afterwards to provide a hard-wearing coating to protect the waterproofing layer. The specialist contractor mixed in kiln-dried sand to the first coat for added grip, making the floor safer to walk on. 

The Result

A completely watertight solution following the guidelines set out in BS 8102:2009 was provided. The works were carried out to a high standard and delivered on time, despite the tight schedule. 

Newton are proud to have been involved in this project, where the property developer ran the development with an all-female senior team for the first time, setting a benchmark for the future of women in construction. 

Download the case study PDF.