Lockwood Homes has built more than 30,000 homes since it started in 1951.
This year it celebrates its 70-year milestone.
Managing Director Andrew La Grouw said the business began after World War ll when two refugees fled for the safety of New Zealand.
"It was founded by a couple of Dutchmen (Joe La Grouw Snr and Johannes Van Loghem) who had some experience in the Netherlands building prefabricated houses," he said.
"They were motivated to leave Europe and what they saw was going to be a difficult [time] and another war, they thought another war was looming, so they were very motivated to escape to a safe place to bring up their families and New Zealand seemed like as far away as you could possibly get from a war zone."