Burnett Elman , solicitors

Colham manor was in 1086 assessed at 8 hides, 6 of which were in demesne. Part of the manor lands was probably granted away in the mid-13th century to form the basis of the sub-manor later known as Cowley Hall. At some time before 1594, however, Hillingdon manor was incorporated in that of Colham. The location of the manor lands before the assimilation of Hillingdon manor is uncertain. Fourteenth-century surveys of Colham include land in Great Whatworth Field, Hanger Field, and Strode Field, a warren on Uxbridge Common, and woodland at Highseat in the north-west. By 1636, however, Colham and Hillingdon manors had been consolidated, so that the lands of Colham then covered approximately two-thirds of Hillingdon parish. At this date the outer boundaries of Colham appear to have substantially respected those of the parish, except in the north-east where the manor boundary followed the Pinn southward from Ickenham Bridge to Hercies Lane and then ran south-eastward to rejoin the parish boundary south of Pole Hill Farm. Insulated within the lands of Colham lay the 'three little manors' of Cowley Hall, Colham Garden, and Cowley Peachey, and freehold estates belonging to a number of manors in other parishes, including Swakeleys in Ickenham.

The manor passed through several owners before, in 1787, John Dodd sold the whole manor to Fysh de Burgh, lord of the manor of West Drayton. Fysh de Burgh died in 1800 leaving Colham, subject to the life interest of his widow Easter (d. 1823), in trust for his daughter Catherine (d. 1809), wife of James G. Lill who assumed the name of De Burgh, with remainder to their son Hubert. The manor passed to Hubert de Burgh in 1832 and he immediately mortgaged the estate. Hubert retained actual possession of the property, which was seldom if ever during this period unencumbered by mortgages, until his death in 1872.

From "A History of the County of Middlesex", available online.