• 6 March 2017

Gray’s Inn Chambers obtains Planning Permission

We are delighted that the proposed refurbishment and extension of No.19 and No. 21 High Holborn received planning approval on 23rd February 2017.

Waterman’s Building Services team have been appointed by The Honourable Society of Gray’s Inn to develop the design that will provide modern office/chambers, retail and porters’ accommodation for Gray’s Inn, ideally located near Chancery Lane Underground Station in Central London.

Working alongside Rick Mather Architects, the Gray’s Inn restoration will greatly improve the existing entrance and presents the opportunity to reinforce the 3,460m2 site’s historic setting, as well as the busy urban environment of High Holborn.

Our team provided energy strategy advice for the improvement of the thermal efficiency of the retained existing front and rear façades of No.21, whilst the façade of No.19 will be replaced in its entirety with a modern energy efficient building envelope. The sustainability strategy adopts heat pumps as a renewable energy heat source and will use the latest low energy lighting technology.

The new seven-storey building will, where new build, be constructed from a lightweight steel, along with reconfiguring of the core to make way for a new stair and lifts. Retaining the existing structural frame presented a challenge as it placed certain constraints on the design and services strategy requiring careful coordination. The redevelopment ensures that the building services are designed to modern office and retail standards and has been engineered to ensure that the new mechanical plant is not visible externally. The new VRF heat pump heating and cooling strategy has been carefully integrated into the architectural design to limit impact on facades and planning ‘corridor view’ by minimising overall roof plant requirements and careful design to minimise plant height.

Mark Terndrup, Director of Waterman Building Services, commented; “We are delighted that this scheme has been given the green light by the planning committee. This approval reflects the team’s efforts to create modern flexible office and retail space whilst carefully respecting the historic importance of this part of the City. We look forward to taking the scheme forward to construction in the near future.”

The project is due for completion in May 2018.

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