Waterproofing an Exclusive Residents’ Club, London

Summary

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  The finished Lillie Square development will be one of the most prestigious developments in London

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  The below-ground resident’s clubhouse also includes a luxury subterranean swimming pool

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  This clubhouse atrium artists’ impression gives a senseof the scale of the above and below-ground areas

Located in Earls Court, London, the Lillie Square development will eventually stretch from Chelsea football ground to Kensington Olympia, and comprises of over 800 multi-million pound luxury dwellings. The development will also contain London’s largest private residents’ club, which boasts a lounge, library, private dining room, cinema, gym, spa facilities and 20 metre swimming pool with jacuzzi.

The Project

Lillie Square Phase 1 required the formation of a watertight basement to house the luxury private residents club serving the entire property development. A large portion of this luxury clubhouse, including a swimming pool, spa, sauna, steam room, gym and function room, is below ground. The project therefore required robust waterproofing to protect the internal environment.

Newton Specialist Contractor Stonehouse were consulted at an early stage to be part of the design team and provide a guaranteed waterproofing solution that would comply with the requirements of both BS 8102:2009 and any third-party warranty providers.

The Solution

The long-term partnership between Newton Waterproofing Systems and Stonehouse spans a wide portfolio across the UK. Stonehouse brought this experience to Lillie Square.

To provide maximum protection, Stonehouse combined two types of waterproofing. This achieved a completely dry Grade 3 internal environment under BS 8102:2009.

The team first used the Type A, cementitious, liquid-applied waterproofing membrane Newton 107F. This product suited this large-scale project because they could quickly spray it over large areas.

They supported 107F with the Type C Newton CDM System cavity drain waterproofing, which they installed throughout the clubhouse basement. The system included four Titan-Pro sump chambers with dual NP400 pumps. It also used Newton High Water Alarms, inverters, and battery back-up protection.This creates a truly failsafe system.

The Result

By working with Sir Robert McAlpine at the design stage, the team considered lifetime performance. They also balanced cost to design and install thorough waterproofing protection.