Plano's zoning regulations limit lot coverage by district. Residential districts typically limit building coverage to 40-45%. Impervious surface coverage affects stormwater management requirements. Landscape edge requirements of at least 10 feet apply to certain developments. North Texas clay soils make drainage and lot coverage particularly important considerations.
Plano's lot coverage regulations limit the total area of a lot that may be covered by buildings, driveways, patios, and other impervious surfaces. In single-family residential zones, maximum lot coverage is typically 35–50% of total lot area. Multi-family and commercial zones allow higher coverage (60–80%). Lot coverage includes all roofed structures, concrete/asphalt surfaces, and any material that prevents stormwater infiltration. Permeable pavers, green roofs, and rain gardens may qualify for impervious surface credits, effectively allowing additional coverage. Accessory structures (sheds, detached garages, pools) count toward total coverage. Exceeding lot coverage limits requires a variance from the zoning board. Texas's stormwater management requirements and drought and conservation concerns support lot coverage restrictions.
Exceeding lot coverage without variance: $200–$1,000 fine and removal/modification order. Building permit denial for projects exceeding limits. Variance application fees: $200–$500.
Plano, TX
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