From the Wikipedia page 
Strand was a local government district within the metropolitan area of London from 1855 to 1900.
Until 1889 the district was in the county of Middlesex, but included in the area of the Metropolitan Board of Works. In 1889 the area of the MBW was constituted the County of London, and the District Board became a local authority under the London County Council. AreaThe district comprised the following civil parishes and places:
- The Liberty of the Rolls
- St Anne Within the Liberty of Westminster] (also called St Anne, Soho)
- St Clement Danes
- St Mary le Strand
- St Paul Covent Garden
- Precinct of the Savoy
The main part of the district was bounded on the east by the City of London, on the north by the Holborn District and the St Giles District, and on the west by the parish of St Martin in the Fields. The parish of St Anne formed an exclave to the west.
 District boardThe district was governed by the Strand District Board of Works, which consisted of forty-nine elected vestrymen: eighteen elected for the parish of St Anne Soho; fifteen for St Clement Danes; nine for St Paul Covent Garden; three each for St Mary le Strand and the Liberty of the Rolls and one for the Precinct of the Savoy. The first elections were held in November 1855, when the entire membership of the board was elected. Thereafter elections for one third of the seats were held in May, beginning in the year 1857.
Strand District was originally within the area of responsibility of the Metropolitan Board of Works and nominated one member to the MBW. In 1889 the area of the Metropolitan Board became the County of London, and Strand District Board of Works became a local council under the London County Council.
The District Board established its headquarters at 22 Tavistock Street, Covent Garden, in 1857, on a site leased from the Duke of Bedford.
In 1899 the London Government Bill was introduced to parliament. The Bill sought to abolish the vestries and district boards in London and replace them with twenty-eight metropolitan boroughs. One of the boroughs included in the schedule to the Bill grouped together Strand District with the areas of three other boards and vestries in the Westminster area as a new borough. This was vigorously resisted by the Strand District Board of Works along with the vestries of St Martin in the Fields and St James Westminster. Instead of what they dubbed "Greater Westminster", the three authorities instead proposed a Metropolitan Borough of The Strand, separate from Westminster, and with the same boundaries as the parliamentary borough of that name. The campaign met with no success, and on November 1, 1900, the Strand District became part of the Metropolitan Borough of Westminster.