Resolution regarding non-renewal of a Mills Act historical property contract with Claude Zellweger and Renee Zellweger, the owners of 621 Waller Street, Assessor’s Parcel Block No. 0864, Lot No. 023, under Chapter 71 of the San Francisco Administrative Code; notifying the Assessor-Recorder’s Office of such non-renewal; and authorizing the Planning Director to send notice of the non-renewal of the historical property contract to the owner and record a notice of non-renewal.