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9 THE CITY OF I�� 1 111 � 111 ��■ pLEASANTON. MEMORANDUM Date: January 14, 2014 To: Honorable Mayor and Members of the City Council From: Nelson Fialho, City Manager 00`../ Brian Dolan, Director of Community Development p`/ Subject: Historic Preservation and Residential Design Amendments Staff has prepared this memo to address items that were discussed or requested by Councilmembers at the December 17, 2013, City Council meeting. Demolition Definition - Based on a comment by Councilmember Brown, staff is providing alternative language for the Council's consideration (possible change is double underlined; the staff-recommended changes that were described in the December 17, 2013, City Council staff report and December 16, 2013, memo are single underlined): Demolition of a residential building for purposes of historic preservation shall be defined as the removal of the front façade or the most visible façade from the street, including changes to the roof and roof line, but excluding the replacement of windows and doors. The front or most visible facade shall be considered the forward most ten feet of the structure and roof/roof line. If the portion(s) of a building that is(are) required to remain as described above are later determined by the Director of Community Development to be unusable (e.g., due to dry rot, termite damage, etc.), then said portion(s) may be removed and reconstructed provided the new exterior construction matches the original in material, composition, design, color, texture, shape, and dimensions. Changes to the front façade as described above that are determined to be consistent with the Secretary of Interior's Standards for Rehabilitation shall not be considered a demolition. Metal Roofs Based on a comment by Councilmember Narum, staff is providing alternative Downtown Design Guideline language for the Council's consideration regarding the use of metal roofs on residential structures (possible change is shown underlined): Metal roofs are discouraged; however, metal shingles that resemble shake or tile with a dull finish and muted color may be approved. Detached Garage Requirement and Lot Depth—Councilmember Narum had requested that staff look at whether a minimum lot depth should be included in the detached garage requirement as there appeared to be several lots that were not very deep and the proposed garage regulation could result in the detached garage taking up most of the rear yard area. Staff found that approximately 10% of the residentially zoned lots in the Downtown Specific Plan Area are less than 100 ft. deep (approximately