The reason is not unknown. It takes an average of over two years to get construction approved in SF. Almost anyone can slow it down a project they don't like it

The reason is not unknown. It takes an average of over two years to get construction approved in SF. Almost anyone can slow it down a project they don't like it, for a variety of reasons. Sometimes even members of the Board of Supervisors personally intervene to prevent it. There is a good rundown here, written earlier this week: https://www.sfchronicle.com/opinion/openforum/article/sf-housing-development-red-tape-17815725.php https://www.sfchronicle.com/opinion/openforum/article/sf-hou...