Challenge

Lillie Square, located in Earls Court is one of the top commercial and residential developments in London, transforming a 7.4-acre car park into over 800 multi-million pound luxury residences. The new neighbourhood includes a luxury residents' clubhouse, a large proportion of which, including a swimming pool, spa, sauna, steam room, gym and function room, is below ground. The project therefore required robust waterproofing to protect this internal environment. 

Solution

The long-term partnership between Newton Waterproofing Systems and experienced Specialist Contractor Stonehouse Property Care has seen both companies partner on a vast portfolio of properties across the UK, and Stonehouse brought this experience to the table at Lillie Square. 

In order to provide the maximum level of protection, and having considered the best options at an early stage alongside main contractor Sir Robert McAlpine, Stonehouse combined two types of waterproofing in order to achive a completely dry 'Grade 3' internal envionment, as per the recommendations of BS 8102:2009. 

The first of these products was the Type A, cementitious, liquid-applied waterproofing membrane Newton 107F, which was particularly suitable to this large-scale project due to the fact that it could be quickly spray-applied over large areas. The 107F was supported by the Type C Newton CDM System cavity drain waterproofing, installed throughout the basement area of the clubhouse, with four Titan-Pro sump chambers containing dual NP400 pumps, as well as Newton High Water Alarms, Inverters and Battery Back-Up protection creating a truly failsafe system. 

Outcome

By working with Sir Robert McAlpine at the design stage it was possible to consider the lifetime performance of the structure as well as the cost in order to design and install thorough waterproofing protection.