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Former Language School With Class E Use, Alliance House, 1 Dorset Square, Westminster, NW1 6PU

5,324 Sq Ft / Offices / Class E - incl Retail Leisure Healthcare

Sold - Last updated: 30 May 2024

One Dorset Square is a Grade II listed corner building featuring high ceilings and abundant natural light. This property stands as an example of Georgian architecture, with a rich history rooted in its location on the site of the historic Lord’s Cricket Ground (Dorset Fields), redeveloped in the 1810s. During World War II, it served as the premises for the Special Operations Executive, known as Spy Corner. In recognition of the agents' bravery during dangerous missions in France, a plaque was unveiled in 1957 by the late Queen Mother.
The property is well-suited for various purposes, including an educational facility, office space, or a medical/healthcare establishment. Subject to obtaining necessary planning consents, residential accommodation may also be a viable option.


Dorset Square is situated in the heart of London’s West End within the vibrant district of Marylebone. Bordered by Regent’s Park to the North, Fitzrovia to the East, Mayfair to the South, and Paddington to the West, Marylebone stands out as one of the most dynamic West End ‘villages’.
This affluent area is renowned for its exclusive boutiques, upscale shops, and acclaimed restaurants, including notable establishments like The Landmark Hotel, Chiltern Firehouse, and Nobu Hotel Portman Square. The presence of these fashionable hotels and a diverse range of high-quality amenities complements Marylebone’s affluent residential community, creating a desirable and lively enclave within London.


Third Floor - 934 sq ft

Second Floor - 900 sq ft

First Floor - 891 sq ft

Ground Floor - 893 sq ft

Lower Ground Floor - 1,272 sq ft

Vaults - 434 sq ft

TOTAL - 5,324 sq ft


The property is offered for sale as a Freehold with Vacant Possession.
Alternatively, a new lease may be available for a term by arrangement, to be contracted outside of the security of tenure and compensation provisions of the Landlord & Tenant Act 1954 (Part II), as amended.
Planning - The property was previously occupied by Alliance Françoise de Londres, with a personal consent for Education use. Preliminary advice suggested that Westminster City Council will consider the site to be ‘nil use’.
EPC - The property has an EPC rating B-27.
VAT - The property is not elected for VAT.
Price - Upon Application.
Floor Plans - Scaled floor plans are available on request.


  • Prime West End Freehold overlooking and with private access to one of London’s most picturesque gardens.
  • Potential for a wide variety of uses.
  • Close proximity to mainline and underground services at Marylebone, Baker Street & Edgware Road.
  • Historic Grade II listed building, previously used as a language school and formally by the French Resistance during World War II, known as Spy Corner during the period.
  • Marylebone is a thriving district that has become one of London’s most vibrant areas and is a favoured destination for companies in multiple industries.
  • The property measures 5,324 SQ.FT (494.6 SQ.M) Gross Internal Area (GIA).
  • The Freehold is offered for sale with full vacant possession

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