San Francisco Board of Appeals heard a full calendar on Dec. 5, 2012, including appeals over tree removals in a park renovation, a challenge to a zoning administrators letter of determination for a medical cannabis collective, safety and permit disputes over a restaurant hood at 483 Guerrero Street (continued to March 6, 2013), and a contested alley gate between 691 Post and 642 Jones (permit upheld with final inspections/ADA work required).