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Home My WebLink AboutWS Item 02 - Historic Preservation WS III MEMO TO: HONORABLE MAYOR, CITY COUNCIL MEMBERS FROM: BRUNO RUMBELOW, CITY MANAGER m.. SCOTT WILLIAMS, DEVELOPMENT SERVICES DIRECTOR MEETING DATE: FEBRUARY 5, 2013 SUBJECT: WORKSHOP -- PROPOSED AMENDMENTS TO APPENDIX G, HISTORIC PRESERVATION RECOMMENDATION: Council to discuss proposed ordinance relative to design requirements for residential structures within historic districts and take any necessary action. BACKGROUND INFORMATION: Several months ago, staff was asked to draft an ordinance that would provide the Historic Preservation Commission tools to prevent large, out of scale, and inappropriate residential structures from being built in the historic districts. The attached amendments will help to ensure that new structures and additions are compatible with the fabric of the existing neighborhoods, especially when they are next to modest vernacular homes. The proposed ordinance amends Appendix G Historic Preservation, Section 7 Certificates of Appropriateness in the Code of Ordinances. Significant elements of the amendments include: Requirement for applicant to submit drawings showing the proposed structure showing the structures on each side of it. Height of structure not to exceed the tallest house within 300 ft, and never to exceed 35 ft. Maximum floor area not to exceed the largest house within 300 ft, but never to exceed 3,400 sq. ft. Total area of the second floor shall not exceed 65% of the area of the first floor A side yard setback plane shall be established so that the maximum wall height (measured at the required side yard setback), shall not exceed 14 ft in height. Beyond 14 ft in height, the structure shall slope away from the setback plane at a 45 degree angle (a drawing is attached showing how this setback requirement could have prevented the looming aspect of a house recently constructed). R:IAGENQA12013102-05-131wk020513.HPC.doc 1/29/2013 4:42:57 PM WS III These amendments were reviewed at the December 19, 2012 and January 23, 2013 Historic Preservation Commission meetings. At the January 23, 2013 meeting, the commission voted in favor of the changes, with a recommendation that Council adopt the ordinance. The document contains input from the Jackson Walker Law Firm, Convention and Visitors Bureau staff, Development Services, and the Historic Preservation Commission. It has been reviewed by City Attorney, Matthew Boyle. R:\AGENDA\2013\02-05-13\wkO2O5l3.HPC.doc 1/29/2013 4:42:57 PM WS III Changes to Appendix G., Section 7 Certificates of Appropriateness will read as follows: (c) Special provisions for Single Family Residences (New and Additions) (1) Submittal Requirements - In addition to any other filing requirements, Certificate of Appropriateness applications for new single family residential structures, and additions to single family structures shall be accompanied by the following documents: a. Current photographs of the existing property, showing the full width of the adjacent properties and structures on each side of the subject property. If the subject property is a corner lot, a photograph of the structure directly across the street of the subject property shall be included. b. A single drawing showing the elevation of the proposed structure along with building elevations of structures on adjacent properties. If the subject lot is a corner lot, the drawing shall also include the structure(s) located directly across the street. (2) Design requirements - In addition to the Secretary of the Interior's Standards, design guidelines, zoning ordinance, building code and any and all other design requirements, the following shall apply: a. No portion of a structure shall exceed by more than ten (10) feet the measured maximum height of the roof of the tallest single family structure, any portion of which is located within a three hundred (300) foot radius of the subject property. Under no circumstances shall any portion of a roof exceed 35 feet above grade. b. Total floor area of all structures on the subject property shall not exceed by more than ten (10) percent, the largest total floor area of all structures on any lot on which a single family residential structure is located, any portion of which is located within a three hundred (300) foot radius. However, under no circumstances shall the living area of any single family residence be limited to less than 1,200 square feet. c. Under no circumstances shall the floor area of all structures on any lot exceed 3,400 square feet. d. The total area of the second floor of any structure shall not exceed sixty-five (65) percent of the total area of the first floor. O:VCU1wkO2O513.HPC.doc 1/29/2013 8:01:53 AM WS III e. Maximum lot coverage for the combined building coverage occupied by all main and accessory buildings and structures shall not exceed 40% of the lot area. f. Sideyard setback plane. No portion of a structure may extend beyond the sideyard setback planes. For the purposes of this section, a sideyard setback plane is a plane that begins 14 feet above the required sideyard setback line, and slopes upward toward the interior of the lot at a 45 degree angle (1:1 slope). Exceptions: 1. Chimneys 2. Plumbing and Mechanical vents, 3. Dormers that: a) are not in excess of eight-feet in width b) are not closer than six-feet to another dormer; and c) do not cause the aggregated width of all dormers on the same elevation to exceed 20-feet in width g. Lots shall not be subdivided such that they are less than 50- feet in width. h. Lots shall not be replatted such that the resulting lot width of any lot would exceed by more than 20 percent the average lot width of all single family residential lots of which any portion is located within a 300 foot radius of the boundary of the property being replatted. Iii.. In the event of a conflict between any of these requirements and any other guidelines, rules or ordinances, the most restrictive requirement shall prevail. j. Front entry garages are prohibited unless placed on the rear one-half of the lot. (d) The commission shall deny, approve, or approve with conditions any CA application within 30 days of receipt of a completed application, determining whether the proposed work is consistent with the regulations contained in this ordinance, in all applicable ordinances, and in the zoning ordinance designating the historic landmark. Upon posted notice, and notification by regular mail at least five days in advance to the immediately adjacent property owners as that ownership appears on the last approved tax roll, the commission shall conduct a public hearing on WZCUIwk020513.HPC.doc 1/29/2013 8:09:53 AM WS III the application, at which time an opportunity is provided for proponents and opponents of the application to present their views. (e) All decisions of the commission shall be in writing, stating its approval or the specific reasons for denying or modifying any applications. 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