The distribution maps available above show that the abbey's assets were heavily concentrated, tending to form natural groups, in Shropshire. This was a major advantage that Haughmond had over nearby Lilleshall, which always suffered from the running costs associated with a widely dispersed property portfolio. The acquisition policy of the abbey tended to strengthen this advantage, deliberately buying or requesting grants of adjoining estates to increase local concentrations of land. Beyond Leebotswood, for example, the abbey built up a large composite of holdings. A grant by Henry II of meadow on the Long Mynd marked the beginning of the venture. More benefactors contributed, especially the powerful Robert Corbet of Caus Castle, and a substantial monastic estate took shape, known as the “domain of "Boveria"”, from the Latin "bos/bovis", an ox, and meaning roughly "cattle shed". This land along the Wales–England border, was mostly waste when the canons arrived but quickly became excellent pasture, as the new name suggests. It fell in the Diocese of Hereford and it was Bishop Robert Foliot who gave the canons permission to turn their oratory at Stitt, in Ratlinghope manor, into church for the region. After it acquired Aston Abbots, in the early 13th century, the community built up another large group of holdings east of Oswestry at Hisland, Twyford and West Felton, and Great Ness. Wherever estates adjoined uncultivated areas, the community took to vigorous assarting. This had been specifically allowed by Henry II in some of his grants. To make administration easier, the estates were divided into 12 local bailiwicks. These were generally under lay management, but obedientiaries, canons with specific responsibilities for rent and tithe collection, were deputed by the abbots to keep in touch.