Garage conversion rules in Humble, TX — sometimes called garage-to-ADU or accessory living unit conversions — govern permits, ceiling height, egress, and parking replacement.
Garage conversions in Humble require building and possibly electrical/plumbing permits under Chapter 4. Must comply with zoning use rules.
The City of Humble does not have a standalone ordinance addressing garage conversions. Converting a garage to habitable living space requires a building permit under Chapter 4 and the adopted 2018 International Building Code. The converted space must meet residential standards for egress, ventilation, electrical, plumbing, and structural integrity. In Humble's flood zones near the San Jacinto River and Lake Houston, the floor of any habitable area must be at least two feet above the 500-year base flood elevation, which is particularly relevant for garage conversions since garages are often at grade level. Deed restrictions and HOA rules in many Humble subdivisions may prohibit garage conversions or require a minimum number of covered parking spaces. The loss of enclosed parking may also affect property value and insurance.
Unpermitted conversion: stop-work order and fines. Flood elevation violation: enhanced penalties. Noncompliant construction: correction order.
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Side-by-side rule comparisons with other cities in Harris County.
See how other cities in Harris County handle garage conversions.
See how Humble's garage conversions rules stack up against other locations.
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