Frederic Chancellor RA, FRIBA, JP (27 April 1825 – 3 January 1918)[1] was an English architect and surveyor who spent much of his career working in Chelmsford, Essex, and its surrounding areas.

[3] Chancellor undertook the remodelling of the house and grounds of Poulett Lodge, Twickenham, in the Italianate style, for William Punchard.

The grounds were re-planned and replanted in 1962; of Chancellors work to survive includes the boathouse, deep-water dock, riverside landing stage, steps, balustrade, gates and loggia.

[3] The Church of Holy Trinity, in Pleshey, was redesigned by Chancellor and built in 1868, with only the medieval crossing arches surviving from the earlier building.

Completed in the Early English style of the 13th century, the building suffered many faults and had to be partially demolished and rebuilt, by Alfred Young Nutt in 1892 because of subsidence.

Historic England, who listed Chancellor's building at Grade II in 1951, noted the architect's "sensitivity" when redesigning the church and his reuse of existing materials in order to recreate the spirit of the earlier church,[16] a sentiment shared by the architectural historian Nikolaus Pevsner in the Essex edition of The Buildings of England.

In 1904 the office drew up a survey plan and forwarded it to Sir Charles Reilly, the chosen architect of the owner of Upminster Hall, Arthur E Williams.

[21] Frederic the elder's second marriage was to Emma née Wenley, in 1903, at Christ Church in Lancaster Gate, Westminster, London.

[24][25] Chancellor retired from his civic duties in November 1917 because of poor health and died at his Chelmsford home, "Bellefield", in January the following year.