The largest landowner in Owmby was the Bishop of Lincoln, who held 4 carucates and 3 bovates of land. In addition, Ilbert and Wadard held 5 bovates from Odo Bishop of Bayeux, that were held by Rolf and Siward before the Conquest. In 1066, Koddi held 5 bovates that were held by Peter from Ivo Taillebois in 1086. A holding in Normanby-by-Spital and Owmby-by-Spital was held by Aghmund before the Conquest and by Kolsveinn from Joscelin FitzLambert thereafter. It was assessed for geld at half a carucate, or 4 bovates. It is also noted that Joscelin held 9 bovates of land that belonged to Aghmund in 1066, and Ivo held 1 bovate, and that the Bishop of Lincoln ought to have the soke of these.