Developers have submitted plans that, if approved, could see up to 180 new homes built in Hunstanton.
A maximum of 120 properties are proposed in an application for a site to the east of Cromer Road.
And a further 60, plus a care home and 60 sheltered housing units, could be built on land to the south of the town’s commercial park and east of Kings Lynn Road.
Both applications, which are in outline form at this stage, have been lodged with West Norfolk Council by Pigeon Hunstanton Ltd and the Le Strange Estate.
Amendments to both proposals were presented to, and supported by, the town council when it met on Friday evening.
But several nearby residents have voiced concerns over the potential impact on local infrastructure, particularly the A149.
They pointed out that several large developments have been permitted on or near to the A149 and questioned the need for further large schemes in the area.
Highways officials have recommended extending the existing 30 miles per hour speed limit to cover the proposed development sites, though the developer would have to fund the necessary change in regulations.