The number on the listing is not the number you pay
Base rent is the largest line in your monthly cost and the only one most renters compare. Across San Antonio it is roughly 85 to 93% of what actually leaves your account each month, and the rest is mandatory.
That gap is the reason the “cheaper” apartment is frequently the more expensive one. A unit advertised at $1,275 with a $170 stack costs more every month than a unit advertised at $1,350 with a $45 stack, and nothing on a listing site tells you which is which. Getting the whole figure before you sign is the entire point of this page, and it is the same discipline we apply on every recommendation, described on our moving concierge page.

What is in the stack
| Line item | Typical range | Notes |
|---|---|---|
| Valet trash | $20-$40/mo | Door-to-door pickup. Mandatory where offered; rare in Class C |
| Pest control | $3-$10/mo | Almost universal, small but recurring |
| RUBS water & sewer | $40-$90/mo | Allocated, not metered. The largest single add for most renters |
| Billing / admin fee | $3-$15/mo | Charged for processing the utility allocation |
| Tech / amenity package | $25-$120/mo | Highest at Class A; sometimes includes bulk internet |
| Parking | $0-$75/mo | Usually included at garden properties, charged at structured parking |
| Pet rent | $20-$50/mo per pet | Plus a pet deposit and a pet-screening fee |
Ranges are across the communities we work with, confirmed July 2026. The mandatory portion, everything above except parking and pet rent. Is what produces the 7-15% figure.
Ask this exact question
“Can you send me the itemized list of every mandatory monthly charge on top of base rent for this unit, including parking and any bulk internet?” A leasing office will answer that in writing. “Are there any other fees?” gets you a shrug.
A worked example
A two-bedroom advertised at $1,394, the July 2026 San Antonio average for that unit type, at a Class B property.
| Line | Monthly |
|---|---|
| Base rent | $1,394 |
| Valet trash | $28 |
| Pest control | $5 |
| RUBS water & sewer | $58 |
| Billing admin | $8 |
| Tech / amenity package | $35 |
| Mandatory total | $1,528 |
| Difference from advertised | +$134 (9.6%) |
| Over a 12-month term | +$1,608 |
Then CPS Energy on top, billed separately.
CPS Energy, and why it swings
San Antonio opted out of Texas electricity deregulation. CPS Energy is the sole electric provider, which means there is no plan to shop, no switching bonus, and no retail contract to compare. SAWS handles water and sewer where a property does not use RUBS.
The part that catches people out is seasonality. Cooling load dominates the bill here from roughly June through September, and a South Texas summer is long. The swing between a January bill and an August bill in the same unit is large enough to matter to a monthly budget, and it is larger in an older building envelope than in 2015-and-newer construction.

Which produces a genuine trade-off. A $75 rent saving in an older building that costs $60 more a month to cool between June and September is not really a $75 saving. We raise it before you sign, because after you sign it is just a surprise.
The setup sequence, who to call, in what order, and how far ahead, is on setting up CPS Energy, SAWS and utilities.
Move-in cash is a separate calculation
Recurring monthly cost and move-in cash are different problems and people conflate them. Move-in typically means first month’s rent plus the fee stack, the security deposit, an admin fee, and the application fee, which runs $50 to $75 per applicant and is non-refundable regardless of outcome.
If the deposit is the obstacle rather than the rent, a deposit alternative may help; the trade-offs are covered in guarantees and deposit alternatives.
Where this fits with concessions
The fee stack and the concession pull in opposite directions and you need both to compare two offers honestly. A property running two months free on a 12-month lease lowers your first-year average considerably; a heavy fee stack raises your every-month figure permanently, including at renewal when the concession is gone.
Run the concession math on net effective rent explained, then add the stack. That combined number, net effective rent plus mandatory fees, is the only fair way to compare two San Antonio apartments.
If you would rather not assemble that for six properties yourself, that is what our verified list does, with a confirmation date on every figure. It is free, and you can start here.