A GP surgery has been forced to remove around 150 patients from its register because of a huge surge in demand from newly-built homes.
Councillor John McFadzean said some people with serious health problems have been told to leave the Stewarton surgery, including the elderly.
The Stewarton Medical Practice said it must de-register people who live outside its boundary because of a “significant increase” in the population it serves.
It said new developments are putting pressure on its service.
Hundreds of homes have been built in the popular town, which is convenient for commuting to Glasgow and elsewhere.
Councillor McFadzean (Annick) said: “The practice has had an enormous amount of people registering.
“I believe about 150 people received letters to say they need to seek an alternative medical practice.
“Some people have been in the practice for 30 years.
“Some have serious health conditions and others are aged in their nineties.
“It is not the fault of the medical practice. It is circumstances.”
Setting out its position, the Stewarton Medical Practice said: “There has been a significant growth in new housing over a number of years in Stewarton and this is continuing, resulting in a significant increase in the practice population.
“Stewarton Medical Practice is based in the local health centre and despite our best efforts, we have been unable to increase the size of our premises.
“We have endeavoured for many years to accommodate an increasing list size.
“We have raised our concerns about this with the relevant authorities on numerous occasions.
“Despite this, new housing developments continue to be constructed within the practice boundary, with no regard to the pressures this places on the Primary Care infrastructure.”
It said it has taken the “difficult decision” to no longer treat patients from outwith the practice boundary in order to provide a safe, high-quality service to those within it.
Councillor McFadzean called for more infrastructure to handle the increase in population from building.
The Conservative politician added: “The Scottish Government want houses built. But we need a balance.”
