Children from the Mission Neighborhood Head Start Preschool hold signs during the press conference where Supervisor David Campos announced an ordinance calling for a temporary moratorium on construction of market-rate housing in the Mission on Tuesday, May 5, 2015 in San Francisco, Calif. Photo: Amy Osborne, The Chronicle
The Building Trades Council, a group made up of San Francisco’s construction-related labor unions, has voted to oppose a major Mission District housing project, the first time in at least a decade it has taken an official position against a big development.