A Sister TV Production for Regent Street TV on behalf of The Crown Estate.
The Quadrant is the latest project in The Crown Estate's Regent Street Vision investment strategy - £1 billion, 20 year programme is regenerating Regent Street and its surroundings in line with the values of quality, heritage, style and success.
The scheme provides 200,000 sq ft of office space, 65,000 sq ft of retail and restaurant space, together with nine residential apartments, all within a significantly improved public realm.
Quadrant 3 is an exemplar of The Crown Estate's commitment to sustainable development and has achieved a BREEAM 'Excellent' rating.
Decentralised energy production and energy efficiency measures significantly reduce the building's carbon footprint, equipping it for the challenges of the 21st Century.
Two combined cooling, heat and power (CCHP) units, photovoltaic cells and thermal stores will provide 22% of the energy and heat for the whole scheme.
One of the CCHP units is the largest and most efficient fuel cell in Europe, reducing CO2 by 40% and NOx and SOx emissions by 99.99%.
Thermal stores retain heat produced at times of low demand and deliver heat at periods of high demand, allowing smaller boilers to work more efficiently.
The thermal stores also capture heat from the waste flue gases of the CCHP unit and hydrogen fuel cell and hold it until required.
Energy efficiency technologies and intelligent lighting reduce electrical consumption by 30%.
To reduce the need for cooling, the building's cladding and glazing is designed to reduce solar heat gain, whilst the glazed atrium roof maximises the use of natural light.
35 m3 rain water harvesting tanks store rain water (Silver Water) which is filtered and cleaned for use in washing machines and toilets
in the residential units, as well as all the office toilets.
A biodiverse sedum roof helps to tackle the risk of urban flooding and improves insulation as well increasing biodiversity. Special nectar rich plants have been selected to help support the local bee population.
During construction a sustainable approach led by Sir Robert McAlpine:
Ensured that embodied carbon was reduced by over 1,500 tonnes. This has been achieved with the use of cement replacements in concrete and block-work, as well as reusing 1,500 tonnes of existing steel.
Designed out waste and maximised recycling throughout the supply chain. The project has produced 500 cubic metres less waste than 'best practice' requirements and recycled over 90% of unavoidable waste.
Saw 8,000 tonnes of waste from the China Clay industry incorporated into the concrete in lieu of mined aggregates -- a UK first.
Reduced traffic emissions by 60% and cut local congestion during construction by utilising a site delivery consolidation centre.
Achieved project FSC certification -- all timber can be traced back to the forest it was grown in, which has external environmental management certification.
Recycled content exceeded 20% by value.
All paints are VOC free, formaldehyde free, creating a healthy building.
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