O-2010-3242 increase maximum allowable lot coverage for single-family detached dwellings

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REQUEST FOR CITY COUNCIL AGENDA ITEM Agenda Date Requested: April 26, 2010 Requested By: Tim Tietiens Department: Planning Report: Resolution: Ordinance:_X Exhibits: Ordinance (showing changes) Ordinance Appropriation Source of Funds: NA Account Number: NA Amount Budgeted: NA SUMMARY The current discussion was precipitated by citizen inquiries and a request, from the developer of Lakes at Fairmont Greens, Section 1, along Wharton Weems Boulevard at State Highway 146, for the maximum lot coverage rule for single-family dwellings as stated in the Zoning Ordinance, Chapter 106 of the Code of Ordinances. Currently, under Sections 106-333, Table B, Residential Area Requirements, the maximum lot coverage allowable for a single-family dwelling is 40%. However, an accessory building 200 s.f. or less and patio covers up to 900 s.f. are exempted from the 40% lot coverage for single-family detached. Staff habitually sees subdivisions with homes near 40% coverage. These homes are built with smaller living area that cannot be expanded when at the 40% threshold. The basic objective of this lot coverage is to minimize the threat of flooding to the areas and to minimize the effect of continued development in the watershed. Detention is now required for developments in certain watersheds. Most subdivisions now have their own detention basins that are sized to mitigate the increased runoff of the development. The City's Public Improvement Criteria Manual (PICM) uses a separate 55% coverage factor to calculate drainage. The criteria, however, take into account the roofed structures and all impervious cover created by driveways, carports, sidewalks and slabs. The Planning and Zoning Commission directed staff to consider proposed amendment to the Zoning Ordinance (Chapter 106), Section 106-333; Table B., Residential Area Requirements pertaining to lot coverage for single-family dwelling. After a workshop and public hearing at the March 24, 2010, meeting, the Planning and Zoning Commission, by a unanimous vote, forwarded their official position for action by City Council that "the maximum lot coverage for single-family detached in Planned Unit Development (PUD) zoning district or residential subdivisions requiring a detention/drainage system, shall be SO%". Action Required by Council: ^l. Conduct a Public Hearing Consider approving ordinance amending Code of Ordinances Chapter 106 (Zoning) pertaining to the lot coverage for single-family detached dwellings. Ron Bottoms, City Manager Date