The go-ahead has been given for hundreds of houses to be built in Barton over the objections of residents.
Local people say that doctors, dentists and schools are already full.
317 new homes will be built off Canberra View, potentially bringing around 1000 new residents to the area.
An estimated 640 cars will also be located in the already-congested part of town.
Dozens of local people objected during the consultation stage.
However, North Lincolnshire Council’s planning committee granted the application from Keigar Homes in Wednesday’s meeting.
“The current infrastructure within Barton cannot cope with additional housing. Doctors, dentists, schools are full,” one resident wrote.
“Infrastructure needs to be updated before additional housing is approved. Traffic around this area including Wren Kitchens is shocking.”
The plans anticipate 81 two-bedroom, 122 three-bedroom and 114 four-bedroom homes being built.
Another person said: “Trying to get out or into the estate at certain times of the day is extremely hard. The proposal only shows one entrance which quite honestly isn’t enough!
“Is there enough space? I can’t even get my daughter into the dentist as a NHS patient at the moment, never mind when more people are trying to register from the new houses.”
One resident criticised how “densely packed” the plans appeared, saying: “it will have the effect of building the equivalent of a new village on the edge of the town without the associated infrastructure to support it.”
They added: “If we are truly to ‘build back better’ and greener after the pandemic, radical changes are needed to how we plan and develop our communities. Why not make a start here in Barton now?”
Another person said simply: “Without significant investment and improvement, local amenities and services will not cope with the increased demands the proposal will bring.”