Farage spoke Friday at the Euro-skeptic party's spring conference in Torquay, a seaside resort in Devon, the Daily Telegraph reported. On Thursday, the government reported that net migration to Britain was up 30 percent in the past year.
"It's a genuine, legitimate, reasonable concern for people to say that immigration is acceptable but having whole areas taken over is difficult," Farage told reporters after he gave his speech. "It's happened on a scale that nobody could ever have imagined."
Farage described a recent rush-hour trip on a local commuter train from London into Kent. He said he heard no English spoken in his car for quite a distance from Charing Cross.
In his speech, Farage said UKIP is not anti-immigrant or anti-immigration but believes the influx needs to be controlled. He said some towns have become "unrecognizable" and the large number of non-English speakers has an impact on hospitals and other institutions.
"This is not the kind of community we want to leave to our children and grandchildren," he said.