139 homes have been proposed for fields off Brooke Road in Oakham.
Chris Parsons, who represented the Ryhall and Casterton Ward as an independent councillor, had missed a deadline to formally accept his role.
A notice of vacancy will be published tomorrow.
Scheme would be built at 'twice the density' of adjoining bungalows.
14 homes are sought in village
Push to create new life in town centre
Owners 'keen for a quality result.'
Standing ovation and selfies for leadership favourite
Scheme sees homes, roads, school, and provision of a 'local centre'
Foreign office minister also defends visit and slams Labour opposition
Social workers have gathered in Rutland for a regional conference aimed at sharing knowledge and skills to help protect children and families.