A new estate of more than 300 homes could be built between Ipswich and Claydon – prompting fears of adding to congestion on the Old Norwich Road and Bury Road.

The application for a triangular site between the Old Norwich Road and A14 beyond the Anglia Retail Park is to be considered by Ipswich planners on Wednesday.

The application is for a site in Claydon, in the Mid Suffolk District, but because it is so large and right up to the borough boundary, Ipswich Council has to be consulted on the plan.

It is an outline application for about 315 homes to be built on the site which has been included in proposals for a new housing development for some years.

Planning officers from Ipswich are warning councillors that the way the site is designed it could put strain on services in Ipswich – schools, roads and medical facilities – rather than integrating with the rest of the village of Claydon.

The design proposes having two entrances to the estate, at either end of the Old Norwich Road which currently has a barrier to prevent motor vehicles – other than buses – using it as a rat-run between Ipswich and Claydon.

The main entrance would be at the Ipswich end of the road – meaning traffic would head towards Norwich Road and Bury Road which are already congested at busy times.

Borough planners warn this would add to congestion at the Bury Road junction with the A14 rather than allowing most traffic to join the main road at the Claydon junction.

The report says: “At present the proposal focuses on local facilities and amenities available in Ipswich, including schools and education, shops and retail, employment, recreation, and medical facilities.

“If further pressure is to be put on these facilities that has not been planned for through the adopted Ipswich Local Plan, then the necessary financial contributions are requested via Mid Suffolk District Council.”

However the officers accept the site is suitable for sustainable development, and say proposals for good cycle and bus links between that and the rest of the town would be a welcome addition to the area.

No decision can be made by Ipswich planners, but a list of matters to be raised with Mid Suffolk’s planning committee will be agreed at the meeting.