'Tis the season for holiday party planning to begin.

There may be one just announced, too, that you want to mark on your calendar, especially if you are into following San Francisco politics.

Mayor Gavin Newsom announced on his Twitter account Wednesday that he and first lady Jennifer Siebel Newsom will be hosting a holiday open house at City Hall.

The event, which could be one of Newsom's last before he assumes his post as lieutenant governor, is scheduled for Sunday, Dec. 12 from 2 p.m. to 5 p.m.

And unlike political office in The City (or possibly just like it), the entire public is invited to attend.