AHHM celebrate progress on 290,000 sq ft office-led development

Tenderstream member Allford Hall Monaghan Morris (AHHM) – alongside client Tishman Speyer and contractor McLaren - is celebrating the topping out of the 290,000 sq ft Angel Square building in Islington, London. The office-led mixed use development at a prominent corner site incorporates new active frontages, builds over an existing underground station, and repositions a public house while retaining the existing concrete structure. Significant best-in-class employment space and affordable workspace provide exemplary, flexible working environments with low operational energy demands.

The significantly redeveloped building retains the reinforced concrete frame and basement of the early 90s postmodern office block, saving a significant amount of embodied carbon. The existing building’s internal structural grid has also informed a facade design of articulated solid columns and ledges, supplemented by profiled metal spandrel panels and the use of glazed terracotta and pre-cast concrete elements at ground floor. The material palette has taken cues from its context and neighbouring buildings’ character, with tones and colours of the profiled metal spandrels influenced by a detailed analysis of the context.

At ground level, the building is pulled back to increase pavement widths and routes around the building, particularly to the Islington High Street and City Road junction, and along the High Street where a newly created office lobby and café creates an engaging and accessible entry. A new public street is also introduced to the north of the site, linking Islington High Street to Torrens Street. Balconies and terraces have been marked with a planted balustrade to soften the building’s roofline and positively contribute to the building’s urban greenery.

Lucy Nordberg
Tenderstream Head of Research

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