CASE STUDY | 100 LIVERPOOL STREET OUR PEOPLE ARE OUR GREATEST ASSETS CIBSE Employer of the Year ChapmanBDSP says support, praise and recognition are key to attracting and retaining the best people. Recently, the practice took staff on a tour of 100 Liverpool Street, a major commercial retrofit, which has become British Lands first net zero building. Andy Pearson reports W e celebrate our achievements, rewarding our team for their great work and fostering an environment of support, praise, and recognition, says ChapmanBDSPs entry to the 2021 CIBSE Young Engineers Awards, where the consultant won CIBSE Employer of the Year. So what better way to foster a collaborative and celebratory environment than a team visit to one of the consultants more recent successes, British Lands 100 Liverpool Street, where ChapmanBDSP was responsible for the MEP and environmental design of the developers first net zero carbon building. The morale-boosting visit was the first outing the consultants London office staff had been on since the outset of the Covid-19 pandemic, and coincided with the 50th year anniversary of the practice. In addition to its net zero status, 100 Liverpool Street has also been awarded Breeam Outstanding and Well Gold Certification, making it one of the most sustainable office projects in the UK. ChapmanBDSPs visit took place in the month the scheme received additional recognition with a Civic Trust Award for its contribution to the built environment. Impressively, the buildings net zero carbon status is largely the result of engineering excellence rather than the design teams slavish pursuit of net zero goals from the outset. We set out to achieve the clients brief by ensuring we could deliver sufficient heating, cooling and electrical capacity with an energy efficient design that incorporated the best, energy efficient equipment, says Rudolph Duncan-Bosu, ChapmanBDSPs project director. As a consequence of doing the fundamentals well, combined with an energy efficient and airtight faade, when we did run the energy numbers it showed that the scheme could realistically aim for carbon zero, he adds. 100 Liverpool Street is a new building with retained structure. The original seven-storey 1980s building, adjacent to Londons Liverpool Street Station, was designed by Arup Associates. It had deep floor plates to accommodate businesses with dealer floors at the time of the stock market Big Bang. Hopkins Architects design set out to rebuild and extend this major development to create more than 48,000m2 of modern, flexible, multitenanted office space with the addition of three new floors of offices, and the creation of an atrium and new retail space. The atrium is the focal point of the building; it effectively divides the floor plates into north and south zones. The floor plates can be The ChapmanBDSP team on their away day to 100 Liverpool Street PROJECT TEAM Client: British Land Architect: Hopkins Architect M&E engineer: ChapmanBDSP Fire engineer: ChapmanBDSP Main contractor: Sir Robert McAlpine Structural engineer: AKT II 16 May 2022 www.cibsejournal.com CIBSE May 22 pp16-18, 20 100 Liverpool Street.indd 16 22/04/2022 15:11