A decision on proposals for 255 more homes in Dereham is being delayed again.
Hopkins Homes wants to develop a site off Yaxham Road and having been deferred by Breckland Council's planning committee last month, it was being recommended for approval this Monday.
It is nearly 10 years since the company first submitted the plans.
The decision has been further delayed until the September meeting.
A Breckland spokesman said: "The application has been deferred as the council has received requests from local consultees to have more time to consider the updated transport assessment associated with the proposed development.
"In light of this, the council is allowing an extended period for people to submit their views and any feedback received will be considered by planning officers and shared with the committee when the application is presented for determination at a subsequent planning meeting."
Dereham town clerk Tony Needham said: "It is good news, Dereham still has unresolved infrastructure constraints. The highways improvements identified by Breckland Council in the Local Plan, as being needed, are now deemed to be undeliverable by Norfolk County Council."
Mr Needham added: "It has also now been established that the computer models used to assess the impact these developments will have on the levels of congestion in the town do not work properly once the network becomes congested."
Norfolk County Council wants the developers to give £897,408 to the two schools nearest by - Toftwood Infant School and Toftwood Community Junior School.
It would also want to see Hopkins pledge around £500,000 towards a new footbridge at Westfield Lane, as well as new roundabout on Yaxham Road to access the site and strengthening of the Westfield Lane rail bridge.
Dereham Town Council and Yaxham Parish Council have lodged further concerns around the impact of the proposed development, relating to transport and drainage.
By 2025 it is projected that the Tavern Lane junction will be operating over its design capacity by 30pc and the Lynn Hill mini-roundabout by 20pc.
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