Latchmere House is a building and grounds southeast of Ham Common in Ham, in the London Borough of Richmond upon Thames, in south west London, England. The southern part of the site lies in the Royal Borough of Kingston upon Thames.

Ham Common is an area of common land in Ham, London. It is a conservation area in, and managed by, the London Borough of Richmond upon Thames. It comprises 48.69 hectares, the second largest area of common land in the borough, 2 acres (0.81 ha) smaller than Barnes Common. It is divided into two distinct habitats, grassland and woodland, separated by the A307, Upper Ham Road. It is an area of ecological, historical and recreational interest, designated a Local Nature Reserve.