This new build landmark office development comprises 140,000 sq ft exceptional workspace, 20,500 sq ft retail space and 7 car park spaces. The development consists of seven above-surface floors and two basement levels, including a lower-level plant room. Three large terrace rooms are located at the top of the building and provide stunning views across the nation’s capital. Each elevation of the new building is designed appropriately to the local street context and is situated on a prominent location on the corner of Portman Square along Baker Street.
The perceived scale of the building is broken down into smaller constituent elements, each of them individually enriched with high-quality materials such as stone, bronzed metal and dichroic glass. At ground floor level, the double-height office entrance is on the corner, where it addresses Portman Square. The retail space is situated on the remainder of the Baker Street frontage.
Maximising the developable area was a key client priority and reconciling that with the planning ambitions for the redevelopment of the site was an enormous challenge.
In terms of construction, key challenges are the excavation of the basement without disturbing neighbouring services, reprovision of substations, the cladding of the building, and the incorporation of complex services.
Community Benefits & Awards
The high quality building contributes a significant element of public art and contribution to the public realm redevelopment of Portman Square. Awards achieved:
- British Lands Awards 2013 – Exceptional Site Management on 10 Portman Square, London
- Irish Construction Awards – International Project for the Year 2014 for 10 Portman Square, London