National Development Minister Khaw Boon Wan chanced upon what he described as a "wonderful change" at a recent Housing Board site visit.
"I was pleasantly surprised to meet quite a number of female engineers," wrote Mr Khaw in his blog, which was posted online on Saturday.
"In fact, of the team of 10 engineers present that day, six were ladies. HDB has done a great job in attracting lady engineers. What a wonderful change!"
Recounting the days when he was studying engineering in the 1970s, Mr Khaw said female students in the field were a "rare breed".
That, however, has changed.
He said the six HDB engineers told him that they were drawn by to engineering because of the wide variety of opportunities in the field, which ranged from developing and managing infrastructure and development projects, to studying traffic impact.
As HDB engineers, they also had the chance to oversee the development of a town from conception to completion, added Mr Khaw.
"They derive a great sense of satisfaction when they saw residents enjoying the fruits of their labour, such as the Punggol Waterway," he said.
However, he added there were some initial adjustments for women engineers, especially at construction sites. He said that one told him that they had to make an extra effort to make their stand loud and clear through reasoning with consultants and contractors.
"I am proud of them for having earned the respect of the contractors. I hope their stories will inspire more ladies to join engineering," he said.