McKinney single-family lot coverage limits range from 35 percent (SF-10) to 50 percent (SF-5) for all buildings combined. Impervious surface coverage (buildings plus driveways plus patios) is typically capped at 60-65 percent in residential districts.
Zoning Ordinance sets maximum lot coverage by district. Accessory buildings count toward coverage but swimming pool surface generally does not. Impervious coverage caps are enforced at building permit review and affect drainage calculations. Lots in detention pond overlay areas have stricter impervious limits.
Contact your local code enforcement office for specific penalty information.
McKinney, TX
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Side-by-side rule comparisons with other cities in Collin County.
See how other cities in Collin County handle lot coverage limits.
See how McKinney's lot coverage limits rules stack up against other locations.
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