The Hoo is a large detached house in the Hampstead area of the London Borough of Camden.

An early design in the Queen Anne style by the architect Horace Field, it was built 1888–90 and altered 1987–88.

[2] The house is now occupied by the Belsize, Gospel Oak and West Hampstead Community Health Teams, part of the Royal Free London NHS Foundation Trust.

[6] In 2019 the building was sold by Savills on behalf of the Royal Free NHS Foundation Trust, having failed to sell at auction on 26 November the previous year.

[7] A planning and listed building application for conversion to three houses is now being considered by the London Borough of Camden[8]