The idea evolved from Sena’s desire to open a pet-friendly homeless shelter. Now she envisions a community village of 30 to 40 tiny houses on a now-vacant lot at 3809 Frankford Ave. to serve as emergency housing. The houses would be between 300 and 650 square feet, with electricity and plumbing. They would cost between $50,000 and $70,000 to build, she said, estimating that the first 10 and a community center could go up for as low as $500,000. The community center would have social workers to help people move to permanent housing outside of the village. Eventually, she’d like to build a second set of tiny homes available to rent at very low cost.