Sitework and grading
Cut and fill, drainage swales and utility trenching priced for South Texas clay and flash-flood requirements.
CY · LF · ACWe prepare quantity takeoffs and cost estimates for San Antonio contractors, developers and owners. Bexar County work runs from slab-on-grade subdivisions over expansive clay to infill commercial in the urban core. Send plans and specs and we return a CSI-organized estimate.
Five local cost drivers dominate: expansive clay soils that push pier and post-tension slab costs, flash-flood and drainage requirements near the South Texas creek system, wind and hail exposure on roofing, ductwork loads in a long cooling season, and labor competition from the larger Texas markets.
San Antonio issued 5,320 new privately-owned residential units in 2025, down 15% from 6,258 in 2024, with a permitted value of $1.5 billion and an average of $281,100 per unit. Single-family accounted for 3,888 of those units and multifamily 1,432, a 27% multifamily share. That mix tells you what a bid here has to price: slab-on-grade production homes, garden-style apartments, and the sitework, concrete and MEP packages that go with them.
We build estimates the same way you buy work. Divisions are separated so you can drop in your own subcontractor quotes, quantities carry units and waste factors, and marked-up plan sets show where each number came from. Pricing is ZIP-code-adjusted for material and labor rather than pulled from a single national average. If you bid across the corridor, our Texas construction estimating page covers the state, and the same team handles Austin and Houston work.
For bidders. You need a number you can defend at buyout. We return division-level quantities with waste factors, unit costs and assumptions listed, so you can compare our takeoff against your subcontractor quotes before the bid goes in.
For builders. Production and multifamily builders need repeatable scopes. We hold the same line-item structure across models and phases, which makes it easier to track cost per unit from one San Antonio job to the next.
For owners. Owners and developers use our estimates for feasibility, lender packages and change-order review. You get a clear basis of estimate, alternates broken out, and a marked-up plan set that shows the scope behind the total.
Select a bar to compare San Antonio with the largest Texas markets we cover.
5,320 new housing units in 2025 (-15% vs 2024).
3,888 single-family · 1,432 multifamily (27%).
The city's 5,320 residential units in 2025 were 15% below 2024, and single-family at 3,888 units still carried most of the volume. For bidders, that means fewer starts chasing the same crews, which usually loosens subcontractor pricing on framing, drywall and flatwork while material quotes stay exposed to national demand. Multifamily at 1,432 units, or 27% of the total, keeps the garden-style and wrap apartment pipeline active enough that MEP and fire-protection scopes stay competitive. At $281,100 average permitted value per unit, the money is in finish level and site conditions, not in shell size alone. Run your takeoff against the current multi-family and residential scopes before you set your number.
San Antonio ranked 6th of 25 covered Texas cities by residential units in 2025, with 7.4% of the 72,008 statewide units. It is the third-largest city in Texas by size, but the permit volume is a fraction of what Dallas and Houston produce, so local labor pools are thinner and crews move between the corridor markets. Bexar County work also competes with the data center and semiconductor construction pulling electricians and mechanical trades toward the Interstate 35 corridor. That pressure shows up in MEP pricing more than in concrete or framing. If you bid in more than one market, compare our Dallas and Fort Worth pages for how we handle those labor differences.
The scopes below cover most of what we price in Bexar County, from raw land through MEP rough-in.
Cut and fill, drainage swales and utility trenching priced for South Texas clay and flash-flood requirements.
CY · LF · ACPost-tension and pier-supported slabs, paving and tilt panels, with formwork and reinforcement broken out.
CY · SF · TONPier depth, beam layout and vapor barrier quantities driven by expansive clay and pad preparation.
LF · CY · SFWall, floor and roof framing counts with lumber, truss and sheathing waste factors applied.
BF · LF · EAWind and hail-rated assemblies, underlayment and flashing quantities for steep-slope and low-slope roofs.
SQ · LF · EADuctwork, piping and electrical counts sized for a long cooling season and code-driven ventilation.
LF · TON · EATenant improvements in the urban core, including partitions, ceilings, storefront and finish schedules.
SF · LF · EAWarehouse and light industrial shells along the corridor, with slab, steel and utility scopes separated.
SF · TON · CYYou bid production homes and garden apartments across Bexar County and need division-level quantities that hold up at buyout. We separate sitework, concrete, framing and MEP so your subcontractor quotes drop in cleanly.
Flatwork, framing, drywall and MEP crews use our takeoffs to size a San Antonio package before committing labor. Quantities carry units and waste factors, so you can price your own crew productivity against real scope.
You run the same model across multiple lots and phases. We hold one line-item structure per plan, which makes cost-per-unit tracking repeatable from one San Antonio job to the next.
Feasibility, lender packages and change-order review all need a defensible basis of estimate. You get alternates broken out and a marked-up plan set showing where each number came from.
You need a quantity check before a set goes to bid. We return takeoffs organized by CSI MasterFormat division with assumptions listed, so scope gaps surface while drawings are still editable.
San Antonio's growth includes data center, semiconductor and warehouse work that carries heavier sitework, concrete and MEP scope. We estimate those packages with the same division structure as residential.
We estimate projects across Bexar County and the surrounding corridor, from central infill to the fast-growing north and west sides. Plan sets come to us from all of these areas, and pricing is ZIP-code-adjusted for the specific location.
The 2025 permit mix — 3,888 single-family and 1,432 multifamily units — tells you where most of the estimating volume sits. The rest of the work follows the same trades: slab, frame, roof, MEP rough-in and finish.
Slab-on-grade homes on tight lots, often repeated across many addresses. We hold one line-item structure per plan so you can compare cost per unit across phases and subdivisions without rebuilding the takeoff each time.
Watch for: Slab thickness, post-tension layout, and per-plan waste factors.
Three- and four-story wood-frame buildings over podium or slab, with breezeways, stairs and common areas. Multifamily was 27% of permitted units in 2025, so this scope is a large share of what we price in San Antonio.
Watch for: Podium concrete, fire-rated assemblies, and unit-mix repetition.
One-off houses in established neighborhoods where site access is tight and existing utilities may need relocation. Quantities are smaller but the sitework and concrete line items carry more risk per unit than production work.
Watch for: Demolition, utility conflicts, and limited laydown area.
Retail, office and light industrial shells along the corridors, plus interior build-outs. We separate base-building scope from tenant improvements so the landlord and tenant numbers stay distinct at buyout.
Watch for: Divisions 2–10 base scope versus Division 11–12 owner items.
Warehouse, manufacturing and data center projects that carry heavy sitework, slab, structural steel and MEP. These budgets turn on concrete volume, process piping and electrical gear rather than finish trades.
Watch for: Slab flatness, equipment pads, and electrical service size.
Schools, clinics, fire stations and public works projects, often with prevailing wage or bonding requirements. We list wage basis and alternates separately so you can see the effect on the total before bid day.
Watch for: Prevailing wage, alternates, and allowance line items.
San Antonio sits on expansive clay, in a wind and hail zone, and inside a market that is still adding units even as the 2025 permit count fell 15% from 2024. Each of those conditions moves quantities and unit costs in specific divisions.
San Antonio and Bexar County review under the adopted International Building Code and International Residential Code editions, with local amendments that affect wind bracing, energy envelope and fire separation. Permit fees and review timelines vary by jurisdiction, so confirm the adopted edition and fee schedule with the local building department before you finalize a bid. We list code basis as an assumption on every estimate.
IBC · IRC · IECC · local building departmentExpansive clay across much of Bexar County drives post-tension slab design, pier depth and grade-beam sizing. A geotechnical report changes concrete volume and rebar weight more than almost any other input, so send it with the plans. Without one, we carry a stated assumption and flag it for confirmation. Foundation scope is separated from flatwork and paving so you can price each correctly.
post-tension slab · pier depth · grade beams · geotechnical reportWind and hail load requirements affect roof sheathing attachment, roof covering selection and exterior cladding fasteners. Summer heat also influences concrete cure schedules and masonry productivity. We carry waste factors and unit costs that reflect the local exposure rather than a national average, and we note where a product substitution would change the number.
wind uplift · hail rating · cure schedule · roof coveringSan Antonio competes for the same framing, concrete and MEP crews as Austin and Houston, and labor rates move with that demand. Our pricing is ZIP-code-adjusted for material and labor, so a crew rate for a north-side subdivision is not the same as one for a downtown infill job. We show labor separately from material in every division.
crew rates · ZIP-code adjustment · trade availabilityFlat terrain and clay soils make drainage and detention a real cost line, not a footnote. Grading, swales, retaining walls, storm inlets and detention volume all change with the civil set. We take off sitework by area and volume rather than a lump sum, and we separate erosion control and temporary utilities so they do not get buried in general conditions.
grading · detention · storm inlets · erosion controlMost material in San Antonio arrives by truck from in-state or regional suppliers, so freight and lead times affect the number. Ready-mix, rebar, structural steel and electrical gear each carry different lead-time risk. We note long-lead items on the estimate and show sales tax treatment where it applies, so your buyout reflects what actually lands on site.
ready-mix · rebar · structural steel · electrical gearSan Antonio's mix of residential subdivisions over expansive clay, commercial infill inside Loop 1604, and industrial work along the I-35 and I-10 corridors changes what a takeoff needs to capture. These are the trades where local conditions most often move quantities.
Bexar County's expansive clay and the intermittent limestone that underlies much of the north and northwest side drive cut and fill quantities more than most bidders expect. A takeoff has to separate topsoil strip, unsuitable clay removal, and rock excavation by area and depth, because the three carry different unit costs. On subdivision work, verify whether the geotech report calls for lime stabilization or over-excavation with select fill; the depth of that treatment is a direct multiplier on cubic yards. Drainage swales and retention pond excavation should be measured from the grading plan, not the architectural sheet. For a full sitework takeoff organized by CSI division, see our sitework estimating services.
San Antonio framing is predominantly wood frame with engineered roof trusses, though the hail exposure in this part of Texas pushes some builders toward standing-seam metal or heavier shingle systems. A framing takeoff needs board feet by member size, plus separate counts for trusses, hangers, and hardware. Wall heights on two-story plans and the number of hips and valleys on complex rooflines are the two variables that most often swing the total. Interior non-load-bearing partitions in commercial work may shift to metal stud, so confirm the wall type schedule before extending quantities. See framing estimating services for a division-by-division breakdown.
San Antonio's hot summers mean HVAC tonnage and duct runs are sized for a long cooling season, and attic mechanical platforms with secondary drain pans are common on residential plans. On the MEP takeoff, count fixtures, receptacles, switches, and light fixtures by type rather than by square foot, and pull the panel schedules and riser diagrams from the electrical set. Plumbing rough-in quantities depend on fixture count and run lengths, which vary widely between a tract home and a medical office. Gas piping for water heaters and ranges is a separate scope line. Our MEP estimating services organize all three trades by CSI division.
Post-tensioned slab-on-grade is the default for San Antonio production housing, and the takeoff differs from a conventional rebar mat: you are counting tendons, anchorages, and stressing pockets alongside cubic yards. On the commercial side, drilled piers and grade beams appear where clay depths make spread footings impractical. Watch the plan notes for vapor barrier thickness and the capillary break detail, and measure the slab edge, thickened slabs under bearing walls, and garage aprons as separate line items. Flatwork, sidewalks, and driveways are frequently excluded from the structural package and need their own scope line. Our concrete estimating services cover both residential and commercial packages.
The dominant local exposure is hail, followed by wind uplift on taller commercial roofs. That means the takeoff should capture underlayment, ice-and-water at valleys and penetrations, drip edge, and the number of pipe boots and vents, not just roofing squares. On commercial low-slope work, measure tapered insulation crickets and the perimeter edge metal separately. Roof pitch and the number of roof planes drive waste more than the plan area alone. If the spec calls for a Class 4 impact-rated shingle, note it as a distinct line so the bid reflects the material upgrade. Our roofing estimating services handle steep-slope and low-slope packages.
Quick check for a single element. For a full drawing set, send the plans and we measure everything, including the items calculators miss.
Typical waste: 3–5% for slabs, 5–10% for footings and walls. Truck count assumes 10 CY loads; confirm load size with your ready-mix supplier.
Need the full takeoff with pricing? Upload your plans.
| Section | Line item | Qty | Unit |
|---|---|---|---|
| 03 30 00 | Slab-on-grade concrete, 4 in. | 42 | CY |
| 03 30 00 | Post-tension tendons and anchorages | 1 | LS |
| 04 20 00 | CMU veneer, 8 in. | 1,850 | SF |
| 06 10 00 | Framing, 2x4 and 2x6 walls | 7,400 | BF |
| 06 17 00 | Roof trusses, engineered | 38 | EA |
| 07 30 00 | Asphalt shingles, Class 4 | 31 | SQ |
| 09 29 00 | Gypsum board, 1/2 in. | 9,200 | SF |
| 22 00 00 | Plumbing fixtures and rough-in | 1 | LS |
This example sizes the concrete for a post-tensioned slab on a one-story house. Dimensions are illustrative; substitute your own plan dimensions and confirm the slab thickness and mix design with the structural drawings.
Assume a rectangular footprint of 62 ft by 40 ft with a 4 in. slab and a 12 in. by 12 in. perimeter beam. The interior slab area is 62 × 40 = 2,480 SF. At 4 in. thick, that is 2,480 × (4/12) = 826.7 CF. The perimeter beam runs 2 × (62 + 40) = 204 LF. At 1 ft by 1 ft, that is 204 CF. Total volume is 826.7 + 204 = 1,030.7 CF. Dividing by 27 gives 38.2 CY.
| Step | Calculation | Result |
|---|---|---|
| Interior slab area | 62 ft × 40 ft | 2,480 SF |
| Interior slab volume | 2,480 × 0.333 ft | 826.7 CF |
| Perimeter beam length | 2 × (62 + 40) | 204 LF |
| Perimeter beam volume | 204 × 1.0 × 1.0 | 204 CF |
| Total volume | 826.7 + 204 | 1,030.7 CF |
| Convert to cubic yards | 1,030.7 ÷ 27 | 38.2 CY |
| Waste at 5% | 38.2 × 1.05 | 40.1 CY |
A typical waste factor for slab concrete is 5% to 10%, covering spillage, over-excavation, and pump loss. Ordering 40 CY on this footprint is reasonable. If the geotech report requires a thicker slab or a deeper beam, rerun the same sequence with the revised dimensions. For a full foundation package that includes piers, grade beams, and vapor barrier, see our foundation estimating services.
The two biggest local factors are expansive clay and post-tensioned slabs. A generic takeoff often prices concrete by cubic yards and rebar by pounds, but San Antonio plans typically call for tendons, anchorages, and stressing pockets that need their own line items. Clay treatment depth from the geotech report also drives earthwork quantities. If your bid does not separate unsuitable clay removal from rock excavation, you are carrying a blended rate that may not match the actual site.
We measure rock separately from soil using the geotech report and the boring logs, and we carry a unit rate per cubic yard rather than a lump sum. Because limestone depths vary across the north and northwest sides, the quantity is the risk. If the report does not quantify rock, we note it as a bid clarification and let you decide whether to carry an allowance. Confirm the rock excavation method with your earthwork contractor before finalizing the number.
We use RSMeans data adjusted by ZIP code for material and labor, and we cross-check major material items against current supplier pricing when you provide it. San Antonio labor rates and material costs differ from Houston and Dallas, so a ZIP-code adjustment matters. If you have recent quotes for concrete, lumber, or shingles, send them and we will use them in place of the database rate. The takeoff is organized by CSI MasterFormat division in Excel and PDF.
Most projects are returned in 24 to 48 hours, and rush service is available. Turnaround depends on the completeness of the plan set: architectural, structural, civil, and MEP sheets all affect how quickly we can extend quantities. If you send a partial set, tell us which trades you need first so we can sequence the work. Marked-up plan sets come back with the Excel and PDF takeoff so you can trace every quantity to the sheet.
Yes. Multifamily work in San Antonio often combines wood frame over a post-tensioned podium or slab, so the takeoff has to separate the structural systems and the fire-rated assemblies between units. We count unit types, corridor lengths, and common-area finishes separately. Our multi-family estimating services cover garden-style, wrap, and podium projects. Send the unit plans and the site plan and we will organize the takeoff by building and by division.
We list the shingle classification as a distinct line item so the bid reflects the material specified. If the plans call for a Class 4 impact-rated shingle, the line item shows it separately from standard architectural shingles. We also measure underlayment, ice-and-water at valleys and penetrations, drip edge, and pipe boots, because those are the items most often left out of a per-square bid. Confirm the manufacturer and warranty requirements with your roofing supplier.
Yes. We cover San Antonio and the surrounding region, including Bexar County and the nearby cities you see on most bid lists. We also cover Houston, Dallas, Austin, Fort Worth, and El Paso through our Texas construction estimating services. If your project is outside those areas, send the address and we will confirm coverage and adjust the ZIP code for pricing. The takeoff format does not change by location.
Send the complete plan set in PDF: architectural, structural, civil, and MEP sheets, plus the geotech report and any specifications. If you have a bid date, tell us so we can prioritize. We also need the project address or ZIP code for pricing adjustments. If you have a scope sheet or a list of trades you are bidding, include it so we can match your format. You can get an estimate through our quote page.
The permit figures on this page come from the U.S. Census Bureau's Building Permits Survey for 2025, covering permits issued by the City of San Antonio. The survey counts new privately-owned residential units only, so it excludes commercial, industrial, and renovation permits. That means the numbers reflect housing activity, not total construction volume. For commercial or industrial permit counts, contact the city's development services department directly.
Texas sales tax applies to some materials and not others, and contractors typically handle it differently depending on whether they are buying for a taxable or exempt project. Our takeoff lists material quantities and unit costs; we do not calculate sales tax unless you ask. If you need a tax line, tell us which items are taxable and we will add it. Confirm current rates and exemptions with the Texas Comptroller or your accountant.
Send your plans and we will return a division-by-division takeoff in Excel and PDF within 24 to 48 hours.