150 Aldersgate includes new terraces, reconfigured entrance and public art installation
Fletcher Priest Architects and JRL-owned contractor Midgard have completed the retrofit and extension of 150 Aldersgate in the City of London to create the new London home of social media giant TikTok.
The scheme was delivered for clients Topland Group and Beltane Asset Management and pre-let to TikTok, with others working on the job including project manager Opera and structural engineer AKT II.
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According to the design team, around 81% of the original structure has been retained as part of a whole-building strategy aimed at reducing embodied carbon. The retrofit included the addition of new roof-level office floors with stepped roof terraces, expanding the building鈥檚 floor area to 140,000sq ft.
Internally, the building includes a new ground floor entrance space acting as an internal street, connecting Aldersgate Street with Bartholomew Place and providing a route to Farringdon鈥檚 Elizabeth Line entrance.
The new facade has 77 hand-made concrete fins. Their woven pattern is described by the architects as a reinterpretation of the site鈥檚 historic use as a textile factory and are designed to provide solar shading.
To the rear, the elevations use a blend of three brick types, intended to reflect the architectural character of nearby warehouse buildings.
Internal cores have been reconfigured and the basement car park converted to workspace. The scheme is rated BREEAM Excellent and EPC A. End-of-journey facilities include 250 cycle parking spaces and showers with access from Braidwood Passage.
Braidwood Passage, which links Aldersgate Street with Cloth Street, has also been reworked as part of the development. The narrow alleyway, which has become a popular pedestrian route following the opening of the Elizabeth Line, was widened and refurbished.
It now features a permanent tiled artwork by artist Alexis Teplin, created in collaboration with the design team and ceramics specialists Darwen Terracotta and Faience.
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Ground Floor Plan
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