Texas SB 15 — Small Lot Deregulation (TX)
Tracked preemption from the Texas overlay bundle.
Overview
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Effective
2025-09-01
Sunset
—
Authority
state
Scope
state:TX
Other Texas preemptions
Primary-source summary
SB 15 — Small Lot Deregulation (2025)Trigger predicate
When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.
AND
parcel.lot_area_sf≤4000
Preempted fields
4 fields on the base district schema are rewritten when the trigger fires.
| Field | Op | Value | Note |
|---|---|---|---|
base_districts[*].min_setback_ft | waive | — | Limits city regulation of setbacks on lots ≤4,000 sf |
base_districts[*].parking_ratio | waive | — | Limits city regulation of parking on qualifying small lots |
base_districts[*].max_height_ft | waive | — | Limits city regulation of height on qualifying small lots |
base_districts[*].max_far | waive | — | Limits city regulation of bulk on qualifying small lots |
Citation
Authority source
Texas SB 15 (88th Legislature)
Research notes
Applies to lots ≤4,000 sf to enable 'missing middle' housing. Cities retain authority over use restrictions and life safety. Source .md does not specify the exact effective date beyond '2025' — using Sept 1 (standard Texas bill effective date) as approximation; verify if a precise date matters. Height waivers could intersect federal airport surfaces in dense urban cores.