Sitework and earthwork
Mass excavation, over-excavation and import for expansive clay pads on Modesto infill and subdivision work.
CY · LF · TONModesto, CA
Construction estimating services in Modesto, CA
Modesto issued 512 new privately-owned residential units in 2025, up 196% from 173 in 2024. We produce CSI MasterFormat takeoffs and estimates for that work — multifamily, single-family, and the commercial shell that follows it — in 24–48 hours.
24–48 hours for most projectsTypical turnaround
Every CSI divisionSitework through MEP
Modesto ZIP pricingLocal material and labor
Price confirmed firstBefore any work starts
Census BPS · Modesto · 2025Real permit data
Modesto new housing permits2025
New housing units512Change vs. 2024+196%Permitted construction value$62MAverage value per unit$121,800Rank among covered California cities#13
Single-family: 208 (41%)Multifamily: 304 (59%)
U.S. Census Bureau, Building Permits Survey, 2025. Residential only.
What makes construction estimating in Modesto, CA different?
Modesto sits in Stanislaus County, where estimating turns on four things: expansive clay soils across the valley floor, IECC climate zone 12 cooling loads, City of Modesto building permit and impact-fee review, and a multifamily-heavy pipeline — 304 of 512 permitted units in 2025. Those drive foundation, MEP and framing quantities more than finish schedules do.
- Modesto permitted 512 new housing units in 2025, #13 among the California cities we cover.
- About 59% were in multifamily buildings; 41% were single-family.
- Permit volume was up 196% compared with 2024.
Modesto's 2025 permit numbers tell you where the estimating hours are going. Of 512 new privately-owned residential units, 304 were multifamily — 59% — and the city's $62M permitted value works out to about $121,800 per unit. That mix means more podium and garden-style apartment takeoffs, more repeat unit plans, and more scrutiny on the sitework and foundation packages that carry the risk on Stanislaus County soils. When we take off a garden-style apartment building in Modesto, the first pass is always the site package: mass excavation, over-excavation below footings, import quantities, and the retaining walls that show up wherever a pad steps across a slope. The second pass is the unit stack — wall types counted floor by floor, because a missed corridor wall type multiplies across every level. The third is MEP, where IECC climate zone 12 cooling loads set the tonnage and the duct sizes before any finish schedule matters. We estimate those projects from the plans you send, using Bluebeam Revu, PlanSwift and RSMeans data with ZIP-code-adjusted material and labor pricing. Deliverables come back as Excel and PDF organized by CSI MasterFormat division, with marked-up plan sets so your superintendent can see exactly where each quantity came from. Most projects turn in 24–48 hours, and rush turnaround is available when a bid date moves. Start with our California construction estimating overview, or send plans straight through get an estimate.
- Coverage
- Modesto and nearby California communities
- Deliverable
- Excel estimate + marked-up PDF plans
- Pricing basis
- Modesto ZIP-code material and labor costs
- Turnaround
- 24–48 hours for most projects
- Software
- Bluebeam Revu, PlanSwift, RSMeans data
01
For bidders. You are pricing a Modesto job against three other GCs. We give you division-by-division quantities with waste factors stated, so you can adjust the numbers instead of rebuilding the takeoff. Marked-up plan sets show every count.
02
For builders. You build multifamily and infill in Stanislaus County and need a budget before design is frozen. We takeoff from the current set, flag scope gaps, and return Excel you can carry into the next revision without starting over.
03
For owners. You need a cost check on a Modesto pro forma. We price the sitework, foundation, framing and MEP scopes that move most on valley soils, and show the assumptions behind each line so your lender sees the basis.
Modesto by the numbers
Modesto's residential construction pipeline
Select a bar to compare Modesto with the largest California markets we cover.
512New housing units, 2025
1.4%Of all units in the California cities we cover
$62MPermitted residential value
59%In multifamily buildings
New housing units permitted in 2025. Source: U.S. Census Bureau, Building Permits Survey.
This city
Modesto
512 new housing units in 2025 (+196% vs 2024).
208 single-family · 304 multifamily (59%).
512 units permitted in 2025, up 196%
Modesto permitted 512 new privately-owned residential units in 2025 against 173 in 2024 — a 196% jump, and 1.4% of the 36,591 units permitted across the covered California cities. The city ranks 13th of 25 by units in that group. For a bidder, that volume means more plans crossing your desk in the same window, and less time per takeoff. Multifamily at 304 units is where the quantity risk sits: repeated unit types reward a careful per-unit takeoff and a separate core-and-shell count, because a single missed corridor wall type multiplies across floors. Single-family at 208 units is smaller but steadier, and it is where foundation and sitework scope gaps show up first. Our multi-family estimating services and residential estimating services cover both sides of that split.
$62M permitted value, about $121,800 per unit
The $62M in permitted value across 512 units averages about $121,800 per unit. That figure is a permit valuation, not a construction cost, and it should never be used as a bid number — but it is useful as a sanity check when a developer's target budget lands far below or above it. In Modesto the gap between permit valuation and real cost usually sits in the sitework and foundation divisions: expansive clay on the valley floor drives over-excavation, import, and sometimes deeper pier systems, and those quantities are priced from soil reports, not from a per-unit average. Confirm the adopted code edition and any local amendment with the City of Modesto building department before you lock a scope. If you are also tracking work in the northern San Joaquin Valley, our Fremont construction estimating page covers a very different cost profile.
Services
Construction estimating services in Modesto
Scopes we take off most often for Modesto and Stanislaus County projects, priced with ZIP-code-adjusted material and labor rates.
Foundation takeoff
Spread footings, stem walls, post-tension slabs and pier systems priced from the geotech report, not a default.
CY · SF · LFConcrete and flatwork
Slab-on-grade, elevated decks, sidewalks and curb for multifamily podiums and single-family tracts.
CY · SFFraming quantities
Per-unit lumber and truss counts for repeated apartment types, with wall-type counts split by floor.
BF · LF · EAMEP systems
Ducted split systems sized for IECC climate zone 12 cooling loads, plus plumbing and electrical rough counts.
TON · LF · EARoofing assemblies
Tile, shingle and low-slope membrane areas with slope, valley and penetration allowances stated separately.
SQ · LFCommercial interiors
Tenant improvement takeoffs for Modesto retail and office space, including partition and ceiling grids.
SF · LFBid leveling support
Comparison sheets that put subcontractor quotes side by side against our quantities to expose scope gaps.
LS · EAWho we provide estimates for
Who sends us Modesto plans
General contractors
You are bidding garden-style apartments and infill in Stanislaus County against three or four other GCs. We return division-by-division quantities with waste factors stated, so you can adjust line items instead of rebuilding the takeoff.
Multifamily developers
Your Modesto pro forma turns on unit costs across 304 multifamily units permitted in 2025. We price the site, foundation, framing and MEP packages that move most on valley soils and give you the basis for each assumption.
Subcontractors
You need framing, concrete or MEP quantities separated by building and floor before you commit a crew. We break out wall types, footing volumes and fixture counts so your bid covers the scope you actually install.
Architects
Your Modesto set is at 60% and the owner wants a cost check. We take off the current revision, flag scope gaps between drawings and specs, and return Excel you can carry into the next issue without starting over.
Owners and lenders
You are underwriting a Modesto project and need a third-party quantity check. We show the assumptions behind sitework, foundation and MEP lines so your lender sees how the number was built.
Design-build teams
You are carrying both design and construction risk on a Modesto job. We give you early quantities for the site package and unit stack so you can lock a GMP before the drawings are final.
Where we provide estimates
Modesto areas and nearby communities we cover
We estimate from plans for projects across Modesto and the surrounding Stanislaus County communities. If your job is in one of these areas, send the set and we will price it with ZIP-code-adjusted material and labor.
Central Modesto
- Downtown Modesto
- La Loma
- College Area
- Bret Harte
- Airport District
- Manteca
- Ceres
North and east Modesto
- Village One
- Sylvan Meadows
- Coffee Road corridor
- Kiernan Avenue corridor
- Riverbank
- Oakdale
- Escalon
South and west Modesto
- Carpenter Road corridor
- Crows Landing Road corridor
- Turlock
- Patterson
- Newman
- Gustine
- Salida
Other covered California cities
Property types
Types of Modesto properties we estimate
Modesto's 2025 permit mix was 512 new privately-owned residential units, with 304 multifamily and 208 single-family. That split tells you where the takeoff hours go: repeat unit plans and the site and foundation packages underneath them.
Garden-style apartments
Three- and four-story wood-frame buildings over slab-on-grade, with surface parking and tuck-under garages. We count wall types floor by floor and separate each building's footprint so quantities do not double-count at shared walls.
Watch for: Corridor and demising wall types repeated on every floor.
Podium and wrap multifamily
Type III or V residential over a concrete podium, common near commercial corridors. We take off the podium slab, post-tensioned or conventionally reinforced, and separate the residential unit stack from the parking level below.
Watch for: Podium slab thickness, reinforcing and waterproofing at the deck.
Single-family infill
Detached homes on infill lots and small subdivisions, often with ADUs. We price the foundation, framing, roofing and MEP per plan, and add separate quantities for each ADU type so you can bid the base house and the accessory unit independently.
Watch for: ADU utility runs and separate meter or panel provisions.
Industrial and warehouse
Tilt-up and metal building shell space along the Highway 99 and Crows Landing corridors. We take off slab thickness, panel counts, structural steel tonnage and dock equipment, and separate shell from tenant improvement scope.
Watch for: Slab flatness, dock pits and shell-versus-TI scope split.
Retail and restaurant
Tenant improvements and ground-up retail in strip centers and standalone pads. We count storefront glazing, kitchen equipment rough-in and grease interceptor scope, and separate landlord work from tenant work so each bid is clean.
Watch for: Grease interceptor, hood make-up air and grease duct.
Agricultural and support buildings
Shops, equipment sheds and processing support buildings tied to Stanislaus County's farm economy. We price slab and foundation, pre-engineered frame, roll-up doors and electrical service, and note where ag exemptions may affect permit scope.
Watch for: Service size, door openings and permit-exempt scope limits.
Local factors
What changes a construction estimate in Modesto
Two bids on the same Modesto drawings can differ by more than the drawings explain. These are the drivers we price explicitly so the gap shows up as a line item, not a surprise.
Permitting and code cycle
Modesto enforces California Building Standards Code, including CBC, CRC, CEC and CALGreen, with local amendments adopted by the city. Plan check comments on egress, accessibility and energy compliance can force revisions after you bid. We note which code edition the drawings reference and flag items that commonly draw comments. Confirm the adopted edition and local amendments with the Modesto building department before you finalize your bid.
California Building Standards Code · CALGreen · Modesto building departmentSoils and foundations
Stanislaus County soils include expansive clays and localized fill, and a geotechnical report often calls for over-excavation and import. Footing depth, reinforcing and slab moisture protection follow from that report. We price the foundation as drawn and list the over-excavation and import quantities separately, because a change in the soils report moves those lines first.
expansive clay · geotechnical report · over-excavation · import fillClimate and cooling loads
Modesto sits in a hot summer climate, and cooling design temperatures drive equipment tonnage and duct sizing. IECC compliance and Title 24 energy documentation affect envelope values, glazing and HVAC selection. We take off the mechanical scope from the drawings and note where equipment capacity or duct size depends on the energy model, so a model change does not silently invalidate your number.
IECC climate zone · Title 24 · HVAC tonnage · duct sizingLabor market and wage rules
Crew availability for framing, concrete and MEP varies by season, and public work in California carries prevailing wage requirements. We price labor at ZIP-code-adjusted rates and separate prevailing-wage scopes where the contract requires them. If your project is publicly funded or on a covered site, tell us at intake so the labor basis matches the contract.
prevailing wage · ZIP-code-adjusted labor · crew availabilitySitework, drainage and land use
Flat valley lots still need mass grading, import, storm drainage and utility trenching, and the City of Modesto's stormwater and grading requirements set detention and water-quality scope. We take off cut and fill, pipe runs, structures and paving from the civil set, and flag where a drainage or utility plan is missing so the gap is priced as an allowance rather than left out.
mass grading · storm drainage · utility trenching · detentionMaterials and logistics
Modesto sits on Highway 99 with rail and truck access, so most commodity materials are available locally, but concrete, steel and equipment lead times still move prices between bid and buyout. We state the pricing date and the waste factors used on each division, and note long-lead items such as switchgear and rooftop units so you can carry an escalation allowance where the schedule demands it.
Highway 99 · concrete lead time · switchgear · waste factorsModesto estimating guide
How Modesto conditions show up in a takeoff, trade by trade
Modesto's mix of infill multifamily and single-family work, expansive soils, and hot Central Valley summers changes what you quantify and how you price it. These are the trades where the local numbers move most.
Sitework and grading
Stanislaus County flatland looks easy until you hit expansive clay and a shallow water table in parts of the valley floor. A takeoff that carries only cut and fill misses over-excavation, import, and lime or cement treatment that geotechnical reports commonly require under slabs and pavement. We quantify stripping by depth, mass grading by cubic yard with a shrink/swell factor, and trench spoil separately. Drainage is its own line: storm laterals, bioswales, and the connection to the city system, priced per linear foot with fittings and bedding. Confirm local stormwater and grading requirements with the Modesto building department. See our sitework estimating services for the line-item breakdown we use.
Framing and structural
Wood framing dominates Modesto's low-rise residential work, with engineered lumber and steel beams at open spans. We take off studs by linear foot by wall height, plates and blocking by linear foot, joists and rafters by piece with span and spacing noted, and sheathing by sheet with a typical 5–10% waste. Hardware, hangers, and hold-downs are counted each, not lumped. For multifamily, we separate common walls and floor/ceiling assemblies so fire-rated assemblies are not buried in a generic framing total. Framing takeoffs live or die on wall-type counts, so we reconcile them against the architectural and structural sheets before pricing.
MEP and residential systems
Modesto's hot summers make cooling loads and duct design a real cost driver, not a footnote. We take off HVAC by tonnage and by linear foot of duct by size and insulation R-value, plus registers, returns, and condensers each. Plumbing is counted by fixture and by linear foot of supply and drain by material, with cleanouts and vents. Electrical is counted by device, fixture, and panel, with homeruns by linear foot. For multifamily, we separate house lines from unit lines so common-area and dwelling-unit costs do not blur. Our MEP estimating services page lists the divisions and units we price.
Concrete and foundations
Residential foundations here are usually slab-on-grade, but expansive soils push designers toward post-tensioned slabs, deeper perimeter footings, and moisture barriers. We take off concrete by cubic yard with a typical 5–10% waste factor, then break out formwork by square foot of contact area, vapor barrier by square foot, and reinforcing by pound with lap and chair allowances. Flatwork is separate: driveways, walks, and patios at 4-inch and 6-inch thicknesses priced by square foot. For multifamily podiums and commercial slabs, we add pump charges and finishing by square foot. Our concrete estimating services and foundation estimating services pages show the units we carry.
Roofing and envelope
Summer heat and winter fog cycles are hard on roofing and stucco in the Central Valley. We measure roof area by slope, add a typical 10% waste for hips, valleys, and ridge caps, and price underlayment, flashing, and venting per linear foot or each. Tile, composition shingle, and low-slope membrane systems are taken off separately because labor and tear-off differ. For the envelope, we quantify stucco by square foot, weather barrier by square foot with a typical 10% lap allowance, and windows and doors by unit with rough opening sizes. Roofing estimating services covers the assemblies and waste factors we apply.
Scope gaps we see on Modesto bids
- Over-excavation and import for expansive soils, often required by geotech but missing from base bids.
- Moisture barrier and capillary break under slabs, plus vapor retarder at walls and penetrations.
- Fire-rated assemblies in multifamily: rated wall and floor/ceiling types not separated from generic framing.
- Duct sizing, insulation R-value, and Manual J cooling loads for hot summers, priced as a lump sum.
- Storm drainage laterals, bioswales, and connection fees to the city system, left to the owner.
- Temporary power, water, and dust control during grading and framing, unassigned in the bid form.
Free tool
Concrete volume calculator
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.
Result
19.4CY
Net volume18.5 CY
Cubic feet500 CF
Ready-mix trucks (10 CY)2
80 lb bags (premix)875
Need the full takeoff with pricing? Upload your plans.
How it works
How we estimate a Modesto project
- Read the full setArchitectural, structural, civil and MEP drawings, the geotechnical report and every addendum.
- Check Modesto conditionsLocal code edition, site and drainage requirements, soils and any hazard rules are confirmed before the takeoff starts.
- Take off by CSI sectionQuantities measured and color-coded on the plans, so every number traces to a sheet.
- Price to ModestoMaterial and labor costs adjusted to the project ZIP code, or to your own supplier quotes and crew rates.
- Check and deliverA second estimator checks quantities before the estimate goes out.
Sample output
Sample takeoff: Modesto single-family residence, 2,400 sq ft
| Section | Line item | Qty | Unit |
|---|---|---|---|
| 03 30 00 | Slab-on-grade concrete, 4" thick | 2400 | sq ft |
| 03 30 00 | Perimeter footing concrete | 180 | cu yd |
| 03 30 00 | Vapor barrier under slab | 2400 | sq ft |
| 05 12 00 | Structural steel beams and columns | 1200 | lb |
| 06 10 00 | Wood studs, 2x4 and 2x6 | 9800 | lin ft |
| 06 10 00 | Wall sheathing, 7/16" OSB | 3200 | sq ft |
| 07 30 00 | Roofing, composition shingle | 3100 | sq ft |
| 09 21 00 | Stucco, 3-coat | 4200 | sq ft |
Worked example: slab-on-grade concrete for a Modesto single-family home
This example uses illustrative dimensions for a 2,400 sq ft single-family house on a slab-on-grade foundation, typical of Modesto residential work. The goal is to show how we move from plan dimensions to a priced quantity with waste, not to quote a specific project.
Step 1 — Slab area. The main slab is 40 ft by 60 ft, so 40 × 60 = 2,400 sq ft. A 4-inch slab is 4 ÷ 12 = 0.333 ft thick, giving 2,400 × 0.333 = 800 cubic feet. Divide by 27 to get cubic yards: 800 ÷ 27 = 29.6 cu yd.
Step 2 — Perimeter footing. Assume a 12-inch wide by 18-inch deep continuous footing, 200 linear feet around the perimeter. Cross-section area is 1.0 ft × 1.5 ft = 1.5 sq ft. Volume is 200 × 1.5 = 300 cubic feet, or 300 ÷ 27 = 11.1 cu yd.
Step 3 — Waste factor. We apply a typical 7% waste for slab and footing concrete to cover spillage, over-excavation, and minor plan changes. Combined volume is 29.6 + 11.1 = 40.7 cu yd. Waste is 40.7 × 0.07 = 2.8 cu yd, for a total of 43.5 cu yd.
Step 4 — Vapor barrier and formwork. Vapor barrier covers the slab area plus a 6-inch lap at edges: 2,400 sq ft plus about 100 sq ft of lap = 2,500 sq ft. Formwork is measured by contact area: perimeter 200 lin ft × 1.5 ft depth = 300 sq ft of footing forms, plus 200 lin ft of slab edge at 0.333 ft = 67 sq ft, for 367 sq ft.
| Step | Calculation | Quantity | Unit |
|---|---|---|---|
| Slab volume | 40 × 60 × 0.333 ÷ 27 | 29.6 | cu yd |
| Footing volume | 200 × 1.5 ÷ 27 | 11.1 | cu yd |
| Waste at 7% | (29.6 + 11.1) × 0.07 | 2.8 | cu yd |
| Total concrete | 29.6 + 11.1 + 2.8 | 43.5 | cu yd |
| Vapor barrier | 2,400 + 100 lap | 2,500 | sq ft |
| Formwork | 300 + 67 | 367 | sq ft |
These quantities feed directly into our concrete estimating services and foundation estimating services line items, where we apply ZIP-code-adjusted material and labor pricing for the Modesto area. If your geotech report calls for over-excavation or lime treatment, that becomes a separate line with its own waste factor.
FAQ
Modesto construction estimating questions
What does a typical Modesto residential estimate include?
We break the estimate into CSI MasterFormat divisions: sitework, concrete, framing, roofing, envelope, MEP, and finishes. Each line carries a quantity, unit, and ZIP-code-adjusted material and labor pricing. You get Excel and PDF files plus marked-up plan sets so you can see what we measured. For a 2,400 sq ft house, expect line items for slab, footing, framing, sheathing, roofing, stucco, and the mechanical, electrical, and plumbing rough-ins.
How do expansive soils in Stanislaus County affect my takeoff?
Expansive clay is common in the valley, and geotechnical reports often require over-excavation, import, or lime treatment under slabs and pavement. Those items are separate from the base slab takeoff because they are measured by cubic yard of unsuitable material removed and replaced. We also carry vapor barrier and capillary break as their own lines. If your geotech report is not final, we price the base slab and flag the soil treatment as an allowance so the bid does not hide the risk.
Where does the Modesto permit data on this page come from?
The figures come from the U.S. Census Bureau, Building Permits Survey, for 2025, counting permits issued by the city itself for new privately-owned residential units only. Modesto issued 512 units, up from 173 in 2024, with 208 single-family and 304 multifamily units. That is 59% multifamily and a permitted value of $62M, or $121,800 per unit. The survey does not include commercial, industrial, or accessory structures, so use it as a demand signal, not a full construction volume.
Can you estimate multifamily projects in Modesto?
Yes. Multifamily was 304 of the 512 residential units permitted in Modesto in 2025, so it is a large share of local work. We separate dwelling-unit scope from common-area and house-line scope, and we take off fire-rated wall and floor/ceiling assemblies by type rather than lumping them into generic framing. That matters for wood-frame podiums and for Type III and Type V construction. Our multi-family estimating services page lists the divisions we cover.
What software and formats do you use?
We use Bluebeam Revu for plan markup, PlanSwift for quantity takeoff, and RSMeans data for pricing. Deliverables are Excel and PDF, organized by CSI MasterFormat division, with marked-up plan sets that show the dimensions and counts behind each line. If your team works in a different format, tell us at kickoff and we will match your bid form or schedule of values. The goal is that you can drop our quantities into your own pricing or send them out as-is.
How fast can I get a Modesto estimate?
Most projects turn around in 24–48 hours, and rush service is available when a bid date is close. Turnaround depends on plan completeness: a full architectural and structural set with a clear scope moves faster than a partial set with unresolved addenda. If you send plans with a bid date and the divisions you need, we will confirm the schedule before we start. For large multifamily or commercial packages, we may phase the delivery by division.
Do you cover nearby cities in the Central Valley and California?
We cover Modesto and the surrounding region, and we price with ZIP-code-adjusted material and labor rates so Central Valley costs are not blended with coastal rates. We also write estimates for other California cities, including Chula Vista, Fremont, San Bernardino, Fontana, Oxnard, and Moreno Valley. If your project is in a nearby unincorporated area of Stanislaus County, send the address and we will confirm coverage and the applicable labor rates.
What do you need from me to start a takeoff?
Send the architectural, structural, civil, and MEP sheets in PDF, plus any geotechnical report, specifications, and the bid form or schedule of values. Tell us the divisions you want priced and any alternates. If you have a target budget or a previous estimate, share it so we can align the format. Marked-up plan sets come back with the estimate, so you can trace every quantity to the sheet it came from.
How do you handle California labor rates and prevailing wage?
We price with ZIP-code-adjusted material and labor rates for the Modesto area, and we can separate prevailing-wage scopes from private work when a project is publicly funded. Davis-Bacon and state prevailing wage determinations change the labor component, so tell us at kickoff if the project is public or if a funding source triggers wage requirements. We will show the labor basis in the estimate so you can adjust it if the determination changes.
Can you estimate a remodel or addition instead of new construction?
Yes. Remodels and additions are measured from existing conditions, so we take off new work by division and add separate lines for demolition, shoring, and temporary protection. In older Modesto neighborhoods, we also watch for asbestos and lead abatement, which is a separate scope with its own unit costs. If you have as-built drawings or a site visit report, send them. Without them, we price from the permit set and flag assumptions that need field verification.
Other California cities we cover
Popular services in Modesto
Send your Modesto project plans for a quote
Send your plans and bid date, and we will return a division-by-division estimate with marked-up plan sets, usually within 24–48 hours.
- We review the set and check for missing sheets or addenda.
- You get a quote with a price and a delivery date.
- You approve and we start the takeoff.
- You receive the Excel estimate and marked-up plans.