A report published by the council’s scrutiny review panel welcomed the principle of an eco-town and commended the approach to sustainability and high environmental standards but cited a raft of reasons against using the site.
Peter Roffey (Con), who chaired the panel, said: “Questions have emerged as to whether Pennbury is the right location - the area has been rejected for major development in the regional plan, partly because of its very poor links to the strategic road network.
“There are also serious reservations about whether the public transport proposals and the plans to create new jobs can actually be delivered."
The panel also expressed doubts that Pennbury meets the eco-town requirement to be well linked to, but distinct from, existing settlements, due to its proximity to Oadby and Great Glen.
It said it “would be visually very intrusive and not in keeping with the rural character of the area.”
The full report will be considered by the County Council’s Scrutiny Commission on January 28 and the cabinet on 10 February.