Cavendish Square development in Marylebone, London W1.

Cavendish Square development in Marylebone, London W1.

February 2020
Car park at Cavendish Square

Car park at Cavendish Square

January 2020
Cavendish Square in Marylebone, London W1.

Cavendish Square in Marylebone, London W1.

January 2020

Cavendish Square

Cavendish Square, London W1G 0PG
Local Authority:

Description of Cavendish Square

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.

Connected Companies

Planning Consultant:
Commercial Leasing:
Commercial Leasing:
Landscape Architect:
Transport Consultant:
Services Engineer:


The nearest tube, train and bus stations.
Oxford Circus Underground Station - 4 min. walking / 238 metres
Bakerloo, Central, Victoria
John Prince's Street / Oxford Circus - 3 min. walking / 150 metres
113, N137

News: (2)

Plans Approved

Westminster Council has unanimously approved Reef Group's redevelopment plans for the car park underneath Cavendish Square in the Harley Street Conservation area.

The new development designed by URBANR will add ca 10,000m2 by extending the 3rd basement level and adding 4th level, taking the total space size to 26,000m2.

The scheme will improve the pedestrian access into the garden and enhance the view to the listed buildings. The central circle of the square remains completely untouched. The new main entrance is on the southern side.

The plans were approved at Westminster Council Planning Committee's first-ever online meeting (planning reference number is 19/08460/FULL).

02/05/2020 00:12 by Buildington
New on Buildington!

Cavendish Square London is a proposed redevelopment of the car park underneath the historic Cavendish Square will offer medical, retail and commercial space on four levels. The planning application was submitted by Reef Group in October 2019.

05/02/2020 19:15 by Buildington

*DISCLAIMER! 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.

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