Tech firm SightPlan plans expansion downtown. Here’s what fueled its growth.

When Joseph Westlake founded SightPlan Inc., the property management software company consisted of Westlake in a 50-square-foot office.

Eight years later, the Orlando-based company just hit the 100-employee mark, with 11,000 square feet of office space in The Plaza building at 189 S. Orange Ave. in downtown Orlando.

A red-hot apartment market drove 36% growth in SightPlan’s staff from 73 people in January to 100 in August, Westlake told Orlando Inno, and the president expects more growth in…