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Sustainable Project of the Year: Finalists

The seven projects showcased here prove that outstanding sustainability can be achieved on all types of work, from retail parks to railway stations.

CN Awards 2018 Sustainable Project B K Structures

CN Awards 2018 Sustainable Project B K Structures

B&K Structures – Dalston Lane

The Dalston Lane mixed-use project is, according to B&K, the world’s largest load-bearing timber building, with the 33.8 m-high structure made up of 100 per cent cross-laminated timber above the first-floor podium.

CLT panels were manufactured offsite, reducing site time for operatives by a reported 60 per cent and keeping waste levels down, with 99.4 per cent of what was produced being recycled. Logistical advantages also meant only 111 road deliveries were required, compared with the 700 B&K believes would have been needed for a similarly sized concrete scheme.

CN Awards 2018 Sustainable Project Kier

CN Awards 2018 Sustainable Project Kier

Kier – Elliott’s Field Shopping Park phase two

Elliott’s Field shopping centre in Warwickshire is said to be the world’s first carbon-neutral retail park, as well as the first “multi-let retail asset” to achieve BREEAM Outstanding.

The project diverted 98 per cent of waste from landfill and sourced 100 per cent recycled aggregates, while Kier’s site team used cabins with solar panels and rainwater harvesting to lower the project’s environmental impact. The contractor focused on BREEAM from the earliest stage when procuring subcontractors, devising specific BREEAM crib sheets for each supplier package, and producing numerous incremental improvements through supply chain collaboration.

CN Awards 2018 Sustainable Project Lendlease South Gardens

CN Awards 2018 Sustainable Project Lendlease South Gardens

Lendlease Construction Europe – South Gardens, Elephant Park

Elephant Park is one of 18 projects globally that is signed up to the C40 Climate Positive Development Programme, which commits it to hitting net-negative operational carbon emissions by 2025.

Lendlease has achieved the Passivhaus standard on the project’s housing units through high levels of airtightness and the use of whole-house mechanical ventilation; this is reported to have produced energy savings of 75 per cent compared with average new-build homes.

The use of pre-cut cross-laminated timber lowered the scheme’s embodied carbon as well as reducing site deliveries, and 98.8 per cent of waste was diverted from landfill.

CN Awards 2018 Sustainable Project Multiplex White Collar Factory

CN Awards 2018 Sustainable Project Multiplex White Collar Factory

Multiplex Construction Europe – White Collar Factory

White Collar Factory is a mixed-use development in London’s Old Street technology hub, comprising low-rise buildings and a 16-storey tower. Given the environmentally aware tech tenants Derwent was targeting, Multiplex was given a target of BREEAM Excellent. 

However, the contractor exceeded this by achieving BREEAM Outstanding, as well as Platinum from the LEED environmental rating system. Multiplex reduced embodied carbon during construction by 30 per cent compared with calculations made at the early design stage, while the development provided 539 sq m of new habitats through a green roof as well as bat and bird boxes.

CN Awards 2018 Sustainable Project Sir Robert McAlpine Bloomberg

CN Awards 2018 Sustainable Project Sir Robert McAlpine Bloomberg

Sir Robert McAlpine – Bloomberg London

Bloomberg’s new European HQ in the City of London comprises 102,000 sq m of space for 4,000 employees. The building achieved BREEAM Outstanding with a rating of 98.5 per cent – said to be the highest design-stage score on record for a major office scheme.

Supply chain collaboration played a key role in hitting high sustainability standards. For example, close work between structural engineers and onsite trades saved 8,000 tonnes of embodied carbon on the project’s concrete pour through using a high percentage of recycled content and replacement cementitious material.

London Bridge view from escalators

London Bridge view from escalators

The Thameslink Programme, Network Rail – London Bridge station redevelopment project

The £1bn five-year redevelopment of London Bridge was completed this year, with Network Rail having looked to push the boundaries of sustainability on major infrastructure projects. Recycled aggregates made up 99.8 per cent of those used, while waste diversion from landfill stood at 98 per cent.

Network Rail sought to make improvements down to the smallest details. For example, delivery drivers were trained in more economical driving, producing a 20 per cent cut in diesel use equal to 71 tonnes of CO2e. Site offices were even switched to green electricity tariffs and given smart meters, making a forecast saving of 742 tonnes of CO2e.

CN Awards 2018 Sustainable Project Verto Homes

CN Awards 2018 Sustainable Project Verto Homes

Verto Homes – Island Reach

All the homes across this development on the Cornwall coast feature EPC A-rated insulation, mechanical ventilation with heat recovery systems, air-source heat pumps and solar PV panels. Their timber frames were erected by local contractors and are not only sustainably sourced but can be recycled at the end of their lifecycle. 

Material efficiency was a primary consideration, with the homes hitting Passivhaus standards, while each property also features charging points for electric vehicles as well as ecoLED lighting and automated climate systems throughout.

H+H logo 1

H+H logo 1

Sponsored by H+H

H+H UK is the largest manufacturer of aircrete products in Britain, including the leading range of Celcon Blocks. Aircrete builds projects from homes to multi-storey dwellings, schools, offices and industrial premises.

Operating nationwide, H+H works with many of the largest builders in the country. 

H+H aircrete is manufactured largely from recycled materials and is highly sustainable, with embodied CO2 lower than most other building materials. H+H UK products have a number of environmental benefits and the company looks to ensure that its choice and use of raw materials, manufacturing processes, packaging and transport are all carried out to the highest environmental standards. 

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