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PD145R(CH)-CS 960718 (2) CITY OF COPPELL PLANNING DEPARTMENT STAFF REPORT CASE PD-145-R (CH) AMENDMENT TO ORDINANCE EXHIBIT "B" RELATING TO ACCESSORY STRUCTURES (CARPORTS & GARAGES) P & Z HEARING DATE: July 18, 1996 C. C. HEARING DATE: August 13, 1996 REQUEST: Amend Exhibit "B" of Ordinance No. 91500-A-104 to add specific provisions regarding the construction of storage buildings, carports and garages. DISCUSSION: A special committee studied the area, met and discussed possible recommendations. A preliminary report of the committee consensus is attached. Staff greatly appreciates the time and energy this group devoted to the evaluation of the issues involved and its prompt response. From a technical standpoint, we have only one observation to make regarding the recommendations. It concerns permitting garage doors within 15 feet of the alley pavement. We agree that 15 feet, plus 10 feet of alley pavement width, accommodates a radius adequate for an average car to make a 90 o turn from the alley prior to entering the garage. However, it is not adequate if half the driveway is occupied by another car. We realize that space is limited in this section of Woodfidge. We simply point out the potential problem. On the other hand, many of the lots in PD-145 just barely have 30 feet of depth available in the rear yard for an attached garage. Increasing the setback from the alley would reduce by half the number of potential future garages. RECOMMENDATION: Staff supports the proposed amendments. Item # 7 ALTERNATIVES: 1) Approve the proposed amendments 2) Disapprove the proposed amendments 3) Modify the proposed amendments 4) Continue the public hearing ATTACHMENTS: 1) Proposed text amendments Item # 7 REVISIONS SHOWN IN Bold Italic Typestyle AMENDMENT TO EXHIBIT "B" ORDINANCE NO. 91500-A-104 A. Use Regulations: No change. B. Height Regulations: No change. C. Area Regulations: No change. D. Minimum Dwelline Size: No change. E. Lot Coverage: No change. F. Parking Regulations: Two (2) off-street spaces per unit located behind the front yard line. Off-street parking spaces shall be provided in accordance with the requirements for special uses set forth in Section 31 of the Coppell Comprehensive Zoning Ordinance. Where lots are adjacent to an alley, the parking area must be accessed off the alley only. No parking shall be allowed within the front yard. Enclosed parking and covered parking shall comply with the requirements of Paragragh J, Special Accessory Building Regulations, and Paragraph K, Revised Detail Site Plans, which follow. G. Type of Exterior Construction: No change. H. No change. I. Mechanical Equipment: No change. J. Special Accessory Building Regulations: Because of existing space limitations, the provisions of Section 35 regarding the rear setback of garages and carportstand the provisions of Section 35 regarding the side setback of garages and carports, with side alley access on that sideJ, shall not apply to Planned Development District 145-R. Also, because of existing buildings with roof pitches in excess of 6:12 built prior to current requirements for type of exterior construction, the provisions of Section 35 regarding materialss, and the provisions of Section 35 regarding maximum height of accessory buildings that are 150 square feet in area or more* shall not pertain. In lieu of those requirements, the following regulations shall apply: 1. For All Accessory Structures: a. Accessory structures shall consist of buildings constructed on the lot. No building shall be moved on to a lot. 1. as found In 35-2, A, 2(a), L and 35-2, B, 2(a), L 2. as found In 35-2, A, 2(b), I and 35-2, B, 2 (b), L 3. as found In 35-2, A, 3, and In 35-2, B, 3 4. as found in 35-2, B, I b. Only one accessory storage building shall be permitted in addition to a carport or garage. c. Roofs of accessory structures shall be pitched. The minimum pitch shall be 4:12 (4 units of vertical rise for each 12 units of horizontal span). The height and pitch, however, shall not exceed that of the roof on the existing principal structure. d. Roofing material on accessory structures shall closely resemble, both in color and type, the roofing material on the existing principal structure. e. Masonry used on accessory structures shall closely resemble in color, size, mortar and jointing, masonry used on the existing principal structure. On lots where the principal building was constructed prior to December 8, 1983, 80% masonry shall not be required. The addition of an accessory structure, however, shall not reduce for all structures combined, the percentage of exterior walls consisting of masonry construction. f. With the exception of glass, paving and foundation materials, all other exterior materials used on accessory structures shall be primed and painted to match the color scheme of the exterior paint on the existing principal structure. 2. For Garages: a. Garages are not required. b. All garages constructed shall be fully enclosed, be equipped with garage doors adequate to accommodate two vehicles, and be attached to the principal structure. b. All garages constructed shall have inside the structure concrete pavement with a minimum of 18feet of clear width and 19feet of clear depth. c. All garages constructed shall be set back from the rear property line a minimum of l0 feet with the garage doors a minimum of 25 feet from the farthest side of the alley pavement furnishing access. 3. For Carports: a. Carports are not required. b. Carports shall be permitted only when the original principal structure on a lot is located such that there is no area between the principal structure and the alley right-of-way at least 20feet wide and 30feet deep. b. All carports constructed shall have inside the structure concrete pavement with a minimum of 18feet of clear width and 19feet of clear depth. c. All carports constructed shall be set back from the rear property line a minimum of 3 feet. d. Prior to the issuance of a Building Permit for a carport, a revised Detail Site Plan shall be submitted in accordance with Section 28 of the Comprehensive Zoning Ordinance and Paragraph K which follows. K. Revised Detail Site Plans: The Planning and Zoning Commission is designated as the approval authority for Revised Detail Site Plans for Planned Development District 145- R. In addition to the site plan submission requirements of Section 28, a revised Detail Site Plan shall show 1. In plan view, the turning radii for two cars to enter from the alley and back into the alley, with a minimum turning radius of 24 feet. 2. Architectural elevations sufficient to show a. Adjacent fences, landscaping and other obstructions to visibility when backing a vehicle into the alley. b. Roof pitch and roofing material, with the roof pitch not to exceed 6:12 (6 units of vertical rise for each 12 units of horizontal span). c. Exposed column and beam sizes and materials, with columns no less than 4 inches wide for each 7feet of clear height. d. Materials and color specifications, including eave trim, gutters and downspouts. 3. Ceiling plans, showing materials and finishes. 4. A plan view of the existing yard area of the lot which demonstrates that there is no area between the principal structure and the alley right-of-way at least 20 feet wide and 30feet deep.