Architect and Builder April/May 2019 | Page 45

ambitious 5-star As-Built rating. In addition to this Arup have also been appointed to assist the anchor tenant, Nedbank Ltd, in targeting a 5-star Interiors Fit-Out rating. Features that helped achieve the 4-star Green Star design rating:Preliminary calculations show that the project will achieve a 36% reduction in energy consumption over the Green Star benchmark. Both passive and active strategies are being implemented to achieve this target. The façade is optimised for both thermal performance and daylight harvesting. The development has two primary sources of cooling: • Air-cooled chillers with assisted ice storage system for the Nedbank portions of the development. • VRF air conditioning systems to the A-grade office spaces of the development. • The main refrigeration plant shall have a reverse cycle heat pump to cater for the low heating requirements of the development. The lighting has been designed for optimal energy efficiency via: • Good daylight levels, with the use of occupancy sensors for switching, saving energy when unused. • All lighting will have LED sources, which are energy efficient • Lighting zones in the offices do not exceed 100m 2 , which allows for only the occupied spaced to be lit. Park Square Carbon dioxide monitors in offices and carbon monoxide monitors in basement car park to ensure that optimum amounts of outside air is delivered to the building. Water and energy metering systems monitor and manage consumption. The first step in building water efficiency is to limit the demand. This will be done by means of installing low flow fittings. The project team created an initiative ‘Create with Waste’ which encourages upcycling of construction waste in the project in innovative ways. Conclusion Park Square’s open design reveals the human activity taking place within the development. The result is a visibly connected, integrated and open community where people can come together in a vibrant, urban space. Ken Reynolds, a director at Nedport Developments says, “Projects like Park Square are effectively turning the South African urban planning paradigm around. This innovative and connected space encourages people to think beyond the boardroom, take time to unplug and to connect with one another. By similarly drawing the surrounding communities for shopping and relaxing, the overall effect is a sociable, communal space that emphasises a convenient and balanced work life experience.” 45