80 Holland Park is a new luxury apartment complex in West London on the site of Duke’s Lodge, a neo-Georgian mansion from 1939. The development consists of 25 homes, comprising duplex town houses, loft-style apartments and penthouses, along with a swimming pool, spa and gym, residents’ lounge, private screen areas and business suite.
SDS was required to deliver a bespoke greywater recycling system to enable wastewater from basins, showers and baths to be treated and used throughout the building, making the development achieve water efficiency criteria of 100 litres maximum mains water consumption per person per day.
A small footprint ensured that the SDS greywater recycling system could fit more easily in the building’s plantroom than traditional MBR systems.
The topography of the site, along with the restricted headroom and layout of the basement level plant room, were key factors in selecting the SDS system. The plantroom’s central location placed the system within reach of as many as 27 collection outlets.
Using SDS’s SYMBiotIC™ technology, remote monitoring of the system is also enabled, so that any requirement for maintenance visits or servicing can be identified in real time, ensuring continued water supply.
By reducing mains water consumption to 90 litres per person per day, the SDS system met and exceeded a key condition in the London Plan, whereby Building Regulations set a daily personal limit of 100 litres.
The system operates at 85.8% efficiency and delivers 2.1 cubic metres of treated greywater each day, sufficient to flush all 88 WCs on the development. The estimated daily greywater yield is just over 3000 litres when the development is fully occupied.