There are different routes that can be taken to become a chartered town planner, including the APC, which combines a minimum of 24 months' professional planning experience with a fully RTPI accredited degree.
The RTPI said the number of planning professionals elected to chartered membership via the APC hit 430 in 2015 - an increase of 28 per cent from 2014.
It also showed that the number of first-time applicants seeking to become chartered town planners rose 15 per cent between 2014 and 2015 to hit 463.
A total of 45 per cent succeeded in becoming a chartered member with their first attempt, it added.
Martine Koch, head of membership at the RTPI, said chartered membership is the "most highly valued professional status for planners".
She said: "It demonstrates to clients, peers, the public and employers around the world that the individual work to the highest professional and ethical standards. The increase in applications seems to suggest a growing demand for planning professionals of the highest calibre."
Earlier this year the RTPI announced that other routes to become a chartered member were changing to become competency based and modelled on the APC route.