San Antonio, TX Building Setbacks & Zoning: Structure Height Limits (2026)
Key Facts
- Governing section
- UDC section 35-517, Building Height Regulations
- Height limit source
- Section 35-310, Dimensional Matrix, Table 310-1
- Measurement method
- As provided in the International Building Code
- Setback for excess height
- One foot back per two feet over the limit
- Single-family buffer
- Fifty linear feet; capped at single-family height
- C-2 next to R-5 example
- Thirty-five feet or two and one-half stories
- Relief route
- Specific use authorization ("S") process
Summary
San Antonio sets building height through section 35-310, the Dimensional Matrix, and Table 310-1, with height measured under the International Building Code. Section 35-517 adds exemptions for spires, chimneys, and rooftop equipment, a one-foot-for-every-two-feet setback rule for height above the limit, and a fifty-foot buffer that caps commercial, office, and multi-family buildings at single-family height.
(a) Generally. Building height shall conform to the requirements of section 35-310 , Dimensional Matrix. ... (c) Height Exceptions. The height limits for the various districts do not apply to church spires, belfries, cupolas, or domes not used for human habitation, nor to chimneys, ventilators, skylights, parapet walls, cornices, solar energy systems, or necessary mechanical appurtenances usually located on the roof level, provided that such features are limited to the height necessary for their proper functioning and do not exceed the limitations of the airport hazard zoning regulations. ... any portion of a structure in any zoning district may be erected to exceed the height limit ... provided that such portion is located back from the side and rear setback lines one (1) foot for each two-foot of height in excess of the height limit ... (2) The maximum height of any portion of a commercial, office or multi-family zoning district located within fifty (50) linear feet of the property line of an established single-family residential use shall be limited to the maximum height of the single-family district.
Full Breakdown
Section 35-517 of the San Antonio Unified Development Code does not hold the height numbers themselves. Subsection (a) sends every project to section 35-310, the Dimensional Matrix, and subsection (d)(1) names section 35-310.01, Table 310-1, as the place where each zoning district's height limit sits. Section 35-517 then controls how height is measured, what is exempt, and what happens when a building rises above the table.
Measurement comes from outside the UDC. Subsection (b) says building height is measured as provided in the International Building Code, so a plan reviewer applies the building code's method rather than a San Antonio formula.
Subsection (c) exempts a defined list from the district height limits: church spires, belfries, cupolas, and domes not used for human habitation, plus chimneys, ventilators, skylights, parapet walls, cornices, solar energy systems, and necessary mechanical appurtenances usually located on the roof level. Two conditions attach. The feature must be limited to the height necessary for its proper functioning, and it cannot exceed the limitations of the airport hazard zoning regulations. A cupola that doubles as living space does not qualify.
Subsection (d)(1) allows a portion of a structure in any zoning district to exceed the Table 310-1 limit if that portion is set back from the side and rear setback lines one foot for each two feet of height above the limit. Residential uses in single-family residential districts are excluded from this option. Distance credits are allowed for space occupied by structures of conforming height extending from the setback lines, except as specified in Table 310-1(k), and the extra height still cannot exceed the airport hazard zoning regulations.
Subsection (d)(2) protects single-family neighbors. Any portion of a commercial, office, or multi-family district within fifty linear feet of the property line of an established single-family residential use is limited to the maximum height of the single-family district. The fifty feet is measured from the residential property line to the structure. The code's own example is a C-2 lot abutting R-5 land: that part of the C-2 property is held to thirty-five feet or two and one-half stories. The cap does not apply when the neighboring lot is zoned single-family but used for something else, such as a church, school, park, or golf course. Subsections (d)(2) and (d)(3) apply only to permits for new construction submitted after December 31, 2010. Under (d)(3), the cap can be exceeded through the specific use authorization ("S") process. The section was last amended by Ordinance 2010-11-18-0985, adopted November 18, 2010.
Violations & Fines
A building that rises past the Table 310-1 limit without the required setback, or that puts commercial, office, or multi-family height inside the fifty-foot single-family buffer without a specific use authorization, does not conform to section 35-517. Because height is checked against the permit for new construction, the problem is normally caught at plan review, and the fix is a redesign, a stepped-back upper floor, or an "S" application. Rooftop features claim the exemption only if they stay within the height needed to function.
Frequently Asked Questions
Where do I find the maximum building height for my San Antonio zoning district?
How is building height measured in San Antonio?
Do chimneys, spires, and rooftop equipment count toward the height limit?
Can a commercial building next to a single-family home be taller than the home's district allows?
Does the single-family height cap apply next to a church, school, or park?
Sources & Official References
Other rules in San Antonio
Texas rules heatmap·Compare San Antonio to another location·View the Texas building setbacks & zoning overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.
Structure Height Limits in Nearby Cities
How other cities in Bexar County handle structure height limits.