London School of Economics gets BREEAM rating of Outstanding
Back in 2014, The London School of Economics' (LSE) original target for The Centre was a BREEAM 'Excellent' rating, but the finished design exceeded this by achieving an 'Outstanding' rating.
Overview
The centre houses the students' union, a learning café, exercise studio, coffee bar, fitness centre, media centre, activities space and LSE’s career services. Championing sustainability standards, the building consists of a mixture of solid and latticed, locally sourced red brick that provides a variety of lighting effects internally and externally.
About
The London School of Economics and Political Science is a public research university in central London, England. It’s a member institution of the University of London.
Background
The first new building that LSE commissioned in more than 40 years, the centre was constructed on the site of the old St Philips building on Sheffield Street, next to the Peacock Theatre in central London.
Challenges
Before the project began, the expectations were very high. A spokesperson for LSE commented that, “‘The new students’ centre must have the highest design quality, environmental sustainability and procurement approach; creating a contemporary, innovative and exciting student environment.”
This meant that everyone involved had to follow the highest standards to ensure that the targets were reached.
Solutions
Close collaboration, both within the project team and with the client, was key to the creation of a highly sustainable, BREEAM ‘Outstanding’ building. BREEAM workshops were held and considerable care was taken with the selection and management of the supply chain to support this.
The design team took a particularly proactive role. Sustainability measures incorporated into the design include a combined heat and power unit (CHP) to generate both heat and electricity, photovoltaic (PV) panels on the roof, and a rainwater/greywater harvesting system to reduce water consumption.
The design also facilitates natural ventilation and cooling. The construction phase had a strong focus on managing energy, water and waste streams and minimising consumption – exceeding standards of best practice in site management. The site team harvested rainwater for use whilst construction was in progress. They also used social media to keep the general public, including students who will use the building, updated on progress.
Benefits
The development scored highly in most issues covered by the BREEAM assessment, notably achieving 100% of the available credits in the management, transport and water categories, as well as 80% of the credits for land use and ecology.
Environmental features
An LED screen in the ground floor foyer displaying dynamic information relating to the PV, CHP and integrated water harvesting systems, and the DEC rating (after a year of operation)
A 254m2 PV system that contributes to reducing of CO2 emissions by 32.3%, when compared to the building regulations’ target emission rate
Extremely efficient boilers and CHP systems that meet the energy heating demand whilst also minimising NOx emissions (less than 40 mg/KWh)
Use of propane as the refrigerant for all chillers in the building to reduce CFC use
Toilets with 4.5 litre flushes and delayed fill valves, taps with flow rate restrictors, showers limited to a maximum flow of 9 litres/minute, and presence detectors so that water only flows when they are in use
A detailed building management system (BMS) integrated into data displays on each floor, which also integrates with LSE’s existing BMS
Use of the building’s design to promote nighttime heat purging for cooling and natural ventilation
Perforated bricks locally sourced from Coleford in Gloucestershire, which through varied finishes provide interesting lighting and notable solar gain that has a positive influence on the BMS
A staggered eastern façade (and main entrance) to aid ventilation and lighting, and to ensure that lighting to existing buildings has not been compromised
