The two trees in front of Real Foods are set for removal at the request of the owner, who apparently came out of hiding. The notice states multiple trunk injuries, decay, etc. The notice also states that the trees will be replaced by the Noe Valley Association, which is great but will leave a gap in the canopy for some time.
If you'd like to make the building owner show up at request a hearing to appeal the trees' removal contact the DPW Urban Forestry department at 2323 Cesar Chavez St, SF CA 94124. You can fax your letter to (415) 695-2147.