In 1125, the king appointed Basset to oversee the lands of
Peterborough Abbey after the death of the abbot. The revenues of a vacant abbey went to the king, and Basset's job was to secure Peterborough's income for King Henry. In 1129–30, Basset served as
sheriff of Bedfordshire and Buckinghamshire,
Cambridgeshire and Huntingdonshire,
Essex,
Hertfordshire,
Leicestershire,
Northamptonshire,
Norfolk and Suffolk, and
Surrey together with
Aubrey de Vere II. The number of shrievalties was unusual and is known from the
Pipe Roll of 1130. According to the entries in the Pipe Roll, de Vere and Basset did not function as traditional sheriffs, farming the revenues, but were instead responsible for the entire royal revenue in those counties. As well as his service as a sheriff, Basset also served as a royal justice, hearing pleas in Leicestershire in 1129 and 1130. Between 1131 and 1133, Basset appears to have been a frequent attendee at the royal court, as he witnessed a number of documents. He was present at the councils held at Northampton in 1131 and at Westminster in 1132. Basset witnessed no royal documents after 1133 when King Henry left England for Normandy for the final time. After King Henry's death in 1135, Basset was not employed as a royal official, either as a justice or as a sheriff. He appears once as a witness to a charter of
King Stephen's in 1136, but the authenticity of this document has been questioned. He had built a castle in Normandy at Montreuil-au-Houlme, but Basset did not have possession of it in 1136, when it was held against Stephen's opponents by
William de Montpincon. ==Lands==