Mayor Ed Lee and the San Francisco Unified School District announced Wednesday they plan to build a 100-unit housing complex solely for public school teachers and paraprofessionals, and invest up to $44 million over the next five years to help them purchase homes.

The proposals seek to help the many teachers and teaching assistants in San Francisco who say untenable housing prices have made it impossible for them to live in the city.

“Providing this housing opportunity for our teachers is one of the most important things we can do as a city,” Board of Supervisors President London Breed said in the mayor’s office Wednesday. She added that she was “really a bad kid in school” and the teachers who helped children like her “deserve an opportunity to live in this great city.”...

San Francisco Unified has for years discussed the idea of building affordable housing for teachers. Several years ago, teachers objected to the idea of a teachers-only apartment house in the Sunset District, saying they didn't want to go home every night to a building full of fellow teachers.