BCAD non-homestead property taxes on a $240,000 San Antonio home run $4,800 to $6,200 annually (2.0%–2.6% effective rate depending on school district). Texas homeowner insurance has risen 20% to 30% since 2022 due to hail and wind exposure. Vacant San Antonio homes in summer require continuous HVAC — limestone block construction holds heat above 110°F in unconditioned interior spaces. Every month a San Antonio home sits unsold costs $1,000 to $1,800 in real cash before any mortgage payment.
Why San Antonio Holding Costs Are Significant
San Antonio homeowners carrying a vacant property face the same no-income-tax-driven property tax burden as Dallas and Houston, plus Texas’s elevated insurance market and the unique challenges of San Antonio’s limestone block and older frame construction in summer heat.
BCAD property taxes. Bexar County Appraisal District (BCAD) appraises at 100% of market value. Non-homestead combined effective rates run 2.0% to 2.6%:
- City of San Antonio + Northside ISD: approximately 2.2%–2.5%
- City of San Antonio + North East ISD: approximately 2.0%–2.3%
- City of San Antonio + San Antonio ISD: approximately 2.3%–2.6%
Owner-occupants with a homestead exemption get a $100,000 reduction in taxable value plus a 10% annual appraisal increase cap. Vacant, inherited, and rental properties lose both the reduction and the cap.
Texas insurance market. San Antonio sits in the Texas hail and wind corridor. Insurance rates have risen 20% to 30% cumulatively since 2022. A standard homeowner policy on a $240,000 San Antonio home: $1,800 to $3,200 annually. A vacant home policy (required after 30 to 60 days of vacancy depending on the insurer): $2,200 to $4,000 annually.
Limestone block and summer heat. San Antonio’s distinctive limestone block construction (prevalent in the South Side, West Side, and established pre-1970 neighborhoods) holds heat differently than wood-frame construction. Unconditioned limestone structures can reach interior temperatures of 110°F to 115°F during July and August peak heat. Without HVAC running:
- Interior humidity rises rapidly from condensation during temperature swings
- Mold grows on drywall, insulation, and stored contents
- Pest infestations (particularly cockroaches and scorpions, both common in San Antonio) accelerate in unconditioned spaces
Minimum HVAC cost in a vacant San Antonio home during summer: $150 to $275 per month.
Month-by-Month Cost: $240,000 San Antonio Home Without a Mortgage
| Expense | Annual | Monthly |
|---|---|---|
| BCAD property taxes (2.2% non-homestead) | $5,280 | $440 |
| Vacant home insurance | $2,800 | $233 |
| Utilities (AC required) | $1,800 | $150 |
| Lawn care and exterior | $1,200 | $100 |
| General maintenance | $1,200 | $100 |
| Total without mortgage | $12,280 | $1,023 |
With a mortgage ($170,000 at 7.5% for 30 years): Add approximately $1,190/month in principal and interest. Total monthly carrying cost: $2,213.
The 6-Month Holding Cost for a San Antonio Home
For a $240,000 San Antonio home without a mortgage:
| Category | 6-Month Total |
|---|---|
| Property taxes | $2,640 |
| Vacant home insurance | $1,400 |
| Utilities/AC | $900 |
| Maintenance and lawn | $600 |
| Total without mortgage | $5,540 |
Over $5,500 before the first buyer walks through. And that assumes the property is stable — no HVAC failure, no foundation movement (San Antonio sits on Texas Hill Country limestone and caliche soils that behave differently from Dallas/Houston clay but still move seasonally).
The Fast-Sale Math for San Antonio Homeowners
For a $240,000 San Antonio home:
| Traditional listing | Cash sale | |
|---|---|---|
| Sale price | $240,000 | $203,000–$218,000 |
| Commission | ($14,400) | $0 |
| Repairs | ($6,000–$15,000) | $0 |
| Closing costs (seller) | ($2,400) | $0–$1,000 |
| Carrying costs (75 days to close) | ($3,100) | ($1,500, close in 14 days) |
| Net to seller | $204,100–$213,100 | $201,500–$217,500 |
For South Side and East Side properties with deferred maintenance and limited buyer pools, the gap often narrows further — traditional listings in these submarkets frequently fail to close at list price and require price reductions that erode the theoretical listing advantage.
When the Military PCS Timeline Overrides the Hold-or-Sell Math
For JBSA military families with PCS orders, the carrying cost calculation is different:
- BAH at the current duty station covers (or partially covers) the San Antonio mortgage
- BAH transfers to the new duty station at PCS date
- Carrying the San Antonio mortgage out-of-pocket after BAH transfers: $1,200 to $2,500 per month in dual housing costs
The real cost of waiting on a PCS is not just San Antonio carrying costs — it is San Antonio carrying costs plus out-of-pocket rent at the new duty station. This doubles or triples the holding cost calculus and makes a fast cash sale the financially correct decision in nearly every JBSA PCS scenario.
Find out what your San Antonio home is worth in cash →
For the full overview of San Antonio fast-sale options, see: Sell My House Fast San Antonio TX: Every Real Option in 2026
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