In 1804 a detachment of the Corps of Gunner Drivers (support unit for an artillery brigade stationed in St James's Park) was billeted in farm buildings on the St John's Wood site.

By 1810 the Board of Ordnance had decided to base the brigade in its entirety on the site, and negotiated a lease from the Eyre family who owned the land.

[3] In November 2011, Malaysian Ananda Krishnan, one of the richest businessmen in Asia, acquired the Barracks from the Eyre estate for £250m with a view to creating a prime residential development of 133 homes.

[4] The Grade II listed Riding School of 1825 was to be preserved, and there was a plan to accommodate a gym for residents' and community use.

In August 2023 Westminster City Council formally approved the name "St John's Wood Square" to refer to the site of the new development.