Cavendish Square

Marylebone W1G
Commercial development

Key Details

Cavendish Square, London W1G 0PG


Cavendish Square is a world-first development blurring the boundaries of medical, retail and commercial space, set underneath Cavendish Square Gardens in Marylebone, London W1.

Cavendish Square offers accommodation for Hospitality industry on four levels from 10,000 to 250,000 sq ft with a dedicated entrance to Harley Street. The development has three distinct entrances.

Redevelopment of the Qpark Oxford Street car park.

You might also be interested in the residential Harcourt House development, where 25 apartments are completing in 2020.

Planning History

2020 Q4 - Expected start of construction.
2019 October - Planning application submitted for: Demolition and erection of above ground structures in conjunction with the change of use of underground car park (sui generis) to provide a flexible mixed use commercial development comprising A1-A5, B1, B2, B8, C1, C2, D1, D2 and Sui Generis uses along with additional excavation and structural adaptation to provide up to 25,953 sqm (GIA) of floorspace. Project team - Client: Reef Group Architect: UrbanR, Planning: DP9, Structure: GDP with McGee, Service Engineer: KJ Tait, Facade Engineer: Fluid Structures, Cost Consultant: Rainey & Best, Transport: Velocity, Vertical Transport: Sweco, Heritage: Heritage Collective, Landscape: Landscape Collective. Westminster Council ref. no. 19/08460/FULL.


Cavendish Square was laid out in 1717 by Edward Harley, the 2nd Earl of Oxford, who was married to Lady Henrietta Cavendish Holles. This was the first phase of the Cavendish-Harley Estate north of Oxford Street.

Prior to the development in February 2020, the building underneath the square has 432 parking spaces, 7 disabled spaces, 6 electric charging points. The drive-through height is 1.95m.

1. History of Urban Form Before the Industrial Revolution By A.E.J. Morris; pp. 265.
2. The Annals of London: A Year-by-year Record of a Thousand Years of History By John Richardson; pp. 178.

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Site & Location


Oxford Circus Underground Station - 4 min. walking / 238 metresBakerloo, Central, Victoria
John Prince's Street / Oxford Circus - 3 min. walking / 150 metres113, N137


Planning Consultant
Office Leasing
Office Leasing
Landscape Architect
Transport Consultant
Services Engineer


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Information on this page is for guidance only and remains subject to change. Buildington does not sell or let this property. For more information about this property please register your interest on the original website or get in touch with the Connected Companies.