It was rare to find someone of that age who was so focused, he said.
"On top of that he's been learning every job in the office so that when he does get out there, that will give him a lot more knowledge than the average salesperson who is a lot older than him. And it's great to have young blood coming in."
Mr Parrington was too young to enter the industry directly from school, so first completed a course at Waiariki Institute of Technology, and subsequently worked in a restaurant while persisting with monthly meetings with the Harcourts boss.
"The scholarship meant I was watched and supervised and learnt in the best way possible," he said.
"It provides a great structure to learn everything in the business."
He added that while being young could be seen as a negative, he believed young people had the ambition, drive, motivation and energy to succeed in the industry.
"There is new technology coming into the business and it is great to have tech-educated real estate agents."