Westmoreland Street is in the Marylebone district of the City of Westminster in London, England.

[1] Thomas Hartwell Horne spent part of his early clerical career there[7] and Hugh Reginald Haweis officiated from 1866,[1] who has been described as the "most prominent exponent of spiritualism among London clergy".

[8] The church was highly successful under Haweis and was renovated again in 1870–71 with the installation of new stained-glass windows and later in the decade George Gilbert Scott Jr. drew-up designs for a new exterior.

[10] It is the former home of the National Heart Hospital, which moved there from Soho Square in 1914,[11][12] and occupies the site left vacant by the demolition of St James's Church.

[1] During the First World War it became a centre for the treatment of military recruits with heart problems.

Numbers 18 to 28 on the south side of Wheatley at the Westmoreland end were hit in September 1940 during the Blitz and marked as "damaged beyond repair" on the London County Council's bomb damage maps[18] but were rebuilt in duplicate in 1948.