Question 1

What code does San Angelo build to, and has the city changed it?

Accepted Answer

The 2021 International Residential Code, adopted by reference at Sec. 4.04.092 of the Code of Ordinances by Ord. No. 2023-017 on 7 February 2023, together with the 2021 IBC, the 2021 IECC commercial provisions and the 2020 National Electrical Code. The city has changed it in several places, and the changes run both ways. Section R313 Automatic Fire Sprinkler Systems is deleted in its entirety, which removes the townhouse mandate as well as the one- and two-family mandate state law already bars a city from imposing. Section R403.1.6 Foundation anchorage is rewritten to a stricter local specification with half-inch anchor bolts at a maximum of six feet on centre, two bolts to each plate section, and express provision for cold-formed steel framing, which is directly relevant to a metal-framed build. Section R602.6.1 on drilling and notching top plates is rewritten, and the smoke and carbon monoxide alarm locations are expanded. One thing San Angelo did not do is delete the accessory-structure permit exemption, which Temple and Lufkin both did. Ask the permits office for the current amendment list before you finalise drawings.

Question 2

Does San Angelo publish design figures I can actually build to?

Accepted Answer

Yes, and that is unusual in Texas. There is no state-level table of design criteria to fall back on, so every figure on a Texas page has to come from a named city's own ordinance, and most cities publish nothing. San Angelo fills in IRC Table R301.2(1) inside the adopting section itself: a 115 mph ultimate design wind speed with a 90 mph nominal design equivalent, a five pound per square foot ground snow load, moderate weathering, a 12-inch frost line depth, a slight to moderate termite rating, a 32 degree Fahrenheit winter design temperature, no ice barrier underlayment required, and an air freezing index of 50. It also records the flood hazard entries, a first ordinance adopted 27 July 1976 and a current map dated 19 June 2012. One cell is worth flagging: the seismic entry reads Seismic Design: Category 0, and the model code's categories are letters rather than numbers, so confirm with the building official how the city applies that cell before an engineer designs to it. None of these numbers travel outside the city limits.

Question 3

Can I put a big detached shop beside the house inside the city limits?

Accepted Answer

In the Ranch and Estate district, yes, and generously. Zoning Ordinance Sec. 402.B permits accessory buildings and structures in R&E up to 100 percent of the principal residential building or 10 percent of the site area, whichever is greater, with a five-foot side yard and a ten-foot rear yard, provided they sit to the rear of the house. On a one-acre R&E lot, ten percent of the site is over 4,300 square feet before the whichever-is-greater limb has even looked at the house. Everywhere else in the city, Sec. 402.A caps an accessory building at 600 square feet or 50 percent of the floor area of the principal building, whichever is greater. Height is the part people expect to bite and here it does not: San Angelo sets no accessory-building height limit at all, so the binding cap is the district maximum of 35 feet and two and a half storeys, which clears a tall overhead door comfortably. One detail to plan around: an accessory building attached to, or within ten feet of, the principal building is treated as integral to it and takes the principal building's setbacks.

Question 4

Which San Angelo zoning district still takes an acre?

Accepted Answer

One. R&E, Ranch and Estate, has a 43,560 square foot minimum lot for a single-family unit with minimum dimensions of 150 by 150 feet, a 40-foot front yard, 15-foot side yards, a 20-foot rear yard, a maximum floor area ratio of 0.20 and a 35-foot, two-and-a-half-storey height limit. Sec. 303.A describes it as intended for low density detached single-family residences on lots of at least one acre in a suburban or rural setting, and as a holding zone for vacant land annexed to the city. Every other residential district is measured in square feet and drops fast: RS-1 and RS-2 at 5,000, zero lot line and twinhome at 2,500, townhouse at 1,875. The district table carries a footnote worth reading before you settle on an acre: additional lot area may be required under state law where wastewater will be disposed of through an on-site system, so the acre is a starting point, not the answer.

Question 5

What will the city charge for the permit?

Accepted Answer

San Angelo prices the two halves of a barndominium at two different rates, which almost no Texas fee schedule does. The residential building permit is a $125.00 base fee plus $0.19 per square foot of living area and $0.15 per square foot of garage, carports, porches, patios and accessory buildings. A remodel or repair is $0.15 per square foot of the entire building under repair. A foundation-only permit, which needs building official approval and complete plans for construction within 30 days, is $125.00 for a single-family dwelling and $85.00 for a residential accessory structure. The minimum permit fee is $25.00, and no permit is required for an accessory structure under 120 square feet with no utilities. Electrical, plumbing and mechanical permits are pulled separately by separate registered contractors. There is no development impact fee in San Angelo: the fee schedule has no impact-fee section and the Code of Ordinances has no impact-fee provision, so unlike Killeen or Waco there is no per-service-unit charge on top. Water tap connections start at $100.00 where the developer has stubbed out, plus the cost of trench repair, and cost one and a half times the schedule outside the city. All figures are the city's own published schedule effective 22 January 2026.

Question 6

What is the ground like out here, and will the slab need an engineer?

Accepted Answer

Different from anywhere east of here, and the difference is a cost line rather than a movement risk. USDA soil survey data for Tom Green County show an indurated restriction — cemented caliche or bedrock — within a metre of the surface on 424,760 of 986,490 mapped acres. Tarrant soils, the county's second largest at 162,853 acres, sit on lithic bedrock at 25 centimetres; Cho hits a petrocalcic horizon at 23 centimetres; Mereta's soil classification is literally Petrocalcic Calciustolls. That is an excavation and trenching problem, not a heave problem. Angelo clay loam, the largest soil in the county at 253,224 acres, does run 42.5 percent clay with a linear extensibility of 7.5 below 15 centimetres, and genuine shrink-swell Vertisols are present in Tobosa and Lipan clays, but they cover only 16,233 acres of the county. On the legal question, be careful with what you read elsewhere: Occupations Code Sec. 1001.056(c)(2) removes the private-dwelling engineering exemption for a residential dwelling slab on expansive soil, but both of its limbs are keyed to the expansive-soil provisions of the IRC as applied in the jurisdiction, and the exemption returns where the slab meets that code as applied. Whether your parcel reaches the trigger is a soil report question, not a map question. The city's own new-residence handout puts it plainly: due to the soil composition and other environmental factors, the foundation plan may need to be engineer designed, stamped and signed. Get a geotechnical report and a Texas-licensed engineer on the parcel.

Question 7

Does Goodfellow Air Force Base restrict what I can build near it?

Accepted Answer

It does, through airport zoning rather than a building code, and San Angelo's instrument names the base directly. Sec. 2.07.251 creates the San Angelo-Tom Green County joint airport zoning board under Local Government Code Sec. 241.014, by Ord. No. 2018-121 of 2 October 2018, with two members appointed by the commissioners court, two by the city council and an elected chairman. The airport zoning ordinance it administers defines airport to mean San Angelo Regional Airport/Mathis Field and Goodfellow Air Force Base, and sets separate approach, transition, horizontal and conical zones and height limits for each, keyed to airport elevations of 1,915 feet above sea level at Mathis Field and 1,877 at Goodfellow. For a house the practical answer is reassuring. Both sets of height limits end with the same saving clause: nothing in the chapter prohibits construction of any structure to a height up to 45 feet above the surface of the land, and no permit is required below 75 feet in the horizontal and conical zones, in the approach zones beyond 4,200 feet from a runway end, or in the transition zones beyond the horizontal zone. A single-storey shop-and-house under the district's 35-foot cap is comfortably under both. The live provision is the use restriction, which bars any use that creates glare in the eyes of flyers, makes airport lights hard to distinguish, or interferes with airport radio — and that has no height floor at all. Where the zones actually fall is a map question: the boundaries are incorporated by reference to a 1969 city map and a 1973 Goodfellow map. Call the airport administration at (325) 659-6409 before you site a tall structure or a bright yard light.

Question 8

Does the county regulate outdoor lighting because of the base?

Accepted Answer

No, and it has no power to. Local Government Code Chapter 240, Subchapter B is the provision that lets a Texas county regulate outdoor lighting near a military installation, and Sec. 240.032(b-1) brackets it to a county with a population of more than one million that has at least five United States military bases, plus any adjacent county within five miles of a United States Army installation. Tom Green County has about 120,600 people and one installation, and Goodfellow is an Air Force base, so neither limb reaches it. The other limbs of the same section are observatory limbs, running 57 miles from McDonald Observatory and five miles from the George and Stephen F. Austin State University observatories, and none of those reaches the Concho Valley either. What does exist is a city ordinance of general application: Article 8.11 of the Code of Ordinances requires luminaires to be shielded and directed so the beam is not thrown across a bounding property line above three feet, and caps intensity at the property line abutting a residential use at 0.25 footcandles. That is a neighbour rule, not a base rule — but the airport zoning ordinance's glare provision is a base rule, and it is the one to think about on a rural tract near Goodfellow.

Question 9

Is my land in a groundwater conservation district, and can I drill a well?

Accepted Answer

That depends on which side of a boundary you are on, and San Angelo is on the outside of it. The Lipan-Kickapoo Water Conservation District covers part of Tom Green, Runnels and Concho counties, but its own management plan excludes San Angelo, Christoval, Grape Creek, the Red Creek Municipal Utility District and the area northwest of the city that lies north of the Middle Concho River and south and west of US Highway 87 up to the Coke County line. The district says most of those places were excluded because they draw surface water. Inside the district, the rules are real and they constrain where a house goes on a tract. Rule 9.1 requires every well to be at least 330 feet from the nearest well or authorised well site and 50 feet from the nearest property line, though a well used solely for domestic and livestock use may come within 10 feet of a property line if the annular space is cemented from the surface to the top of the production layer. Rule 2.1 is the cliff: a well used solely for domestic use or livestock on 10 acres or less is not exempt and must be permitted before drilling. Even an exempt well needs a preregistration form filed with and approved by the district before the rig turns, and it is still subject to the spacing rules. Statewide, Water Code Sec. 36.117 makes the exemption conjunctive — over 10 acres and incapable of producing more than 25,000 gallons a day — and a district may not cap production from an exempt well, but it must require it to be registered and cased. A Texas licensed water well driller and pump installer is required either way. Call the district at (325) 651-0919 with your legal description before you assume you are outside it.

Question 10

Who issues the septic permit, and does it change inside the city?

Accepted Answer

No, it does not change. TCEQ's authorized agent record for Tom Green County returns one agent, the Tom Green County Authorized Agent, and the area served is recorded as the entire county with no city carve-out — which means a San Angelo address on an unsewered lot still gets its on-site sewage facility permit from the county, not the city. The permit office is at 113 W Beauregard Ave in San Angelo, and the county's order regulating on-site sewage facilities was adopted 18 August 2014 and approved by TCEQ's Executive Director on 9 September 2014. The city's own residential building permit application says so on its face, directing applicants to the Tom Green County Health Department for the septic permit. Two things follow for a barndominium. The zoning table's own footnote warns that additional lot area may be required under state law where wastewater goes to an on-site system, so the one-acre R&E minimum is not automatically enough. And the drainfield generally has to be sized and sited before the building footprint is fixed, because moving a drainfield later is far harder than moving a shop door.

Question 11

What happens if the parcel is near the Concho River or in a flood zone?

Accepted Answer

Two separate things, and both are worth checking early. On flood elevation, San Angelo does not publish a single freeboard number. Sec. 12.05.008(b)(1) requires the lowest floor of a new residential structure, including a basement, to be elevated to a minimum of two feet above the base flood elevation, one foot above the fully developed 100-year flood elevation, or one foot above the 500-year flood elevation, whichever is more restrictive — and a registered professional engineer, architect or land surveyor has to certify to the floodplain administrator that the standard is met. The 500-year limb is the one people do not expect. Enclosed areas below the lowest floor need at least two openings totalling one square inch for every square foot of enclosed area, with the bottom of every opening no higher than a foot above grade. The floodplain administrator is the city engineer. Separately, the River Corridor District Overlay Zone brings a design review requirement: Sec. 212 exempts a property used exclusively for a single-family detached dwelling from that review, with the express exception of a property adjacent to the Concho River. So a house on the river is one of the few residential situations in San Angelo where an application for urban design review is actually required.

Question 12

What changes if my land is outside the San Angelo city limits?

Accepted Answer

The building code stops following you, and the utilities become the lever instead. The subdivision ordinance governs the division and development of land inside the city and inside its extraterritorial jurisdiction, but the city's building code and zoning do not reach the ETJ. How far the ETJ runs is a live question here, and worth asking rather than assuming: Local Government Code Sec. 42.021 gives three and a half miles to a municipality with 50,000 to 99,999 inhabitants and five miles at 100,000 or more, and San Angelo is sitting on that line — the Census Bureau's 2025 estimate is 100,640, the same series shows the city below 100,000 from 2021 through 2023, and the 2020 estimates base was 99,903. Ask Planning at (325) 657-4210 which distance the city administers and where the line falls on your parcel. Two water rules bite in the ETJ. First, an owner of unplatted property in the extraterritorial jurisdiction who asks for city water must voluntarily petition in writing for annexation of the area to be served. Second, the city extends no water mains or water service beyond the edge of its ETJ at all. Water tap connections outside the city also cost one and a half times the in-city schedule. Beyond all that it is unincorporated Tom Green County, where a different set of answers applies: the Commissioners Court adopted Local Government Code chapter 233 subchapter F on 8 June 2010, so a residential code does reach a house out there, but the county may not require a building permit, charge a fee for one, or employ inspectors under section 233.154(a)(3). The septic permit still comes from the same county office either way.

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