Aldenham, a village and a parish in Herts, near the Colne river, 3 miles NE of Watford, and 2 W from Radlett station on the M.R, with a post and money order office under Elstree (R.S.O.); telegraph office, Radlett station. Area, 6033 acres of land and 80 of water; population of the civil parish, 2085; of the ecclesiastical, 1260. The living is a vicarage in the diocese of St Albans; gross yearly value, £567 with residence. The church, which is interesting and beautiful, is Early English, of cemented flint stones, in very good condition. Platt's almshouses are well endowed, and his grammar school has an income of £2200. The parish includes the hamlets of Kemprow and Patchet's Green, and the villages of Letchmore Heath and Radlett. The latter was made an ecclesiastical parish in 1865. The living is a vicarage; net yearly value, £210 with residence, in the gift of the Vicar of Aldenham. The church, a building of flint and stone, was erected in 1864. The hamlet of Theobald Street is included in Radlett. One of the chief landowners is Lord Rendlesham.