Sitework and earthwork
Mass excavation, haul-off and import for glacial till sites, plus erosion control and staging for tight infill lots.
CY · LF · TONWe produce quantity takeoffs and cost estimates for Olympia contractors, developers and owners — Excel and PDF, organized by CSI MasterFormat division, with marked-up plan sets. Most projects return in 24–48 hours, priced with ZIP-code-adjusted material and labor data.
Olympia pricing turns on Thurston County glacial till and wet-winter earthwork, Downtown and port-area infill logistics, multifamily share running near half of permitted units, IBC and Washington energy-code detailing, and ZIP-adjusted labor and material costs that differ from Seattle metro assumptions.
Olympia's 2025 residential permit volume fell to 129 units from 282 in 2024, a 54% drop, according to the U.S. Census Bureau Building Permits Survey. Multifamily still accounted for 62 of those units, or 48% of the total, and permitted value came in around $32M — an average of $246,800 per unit. That mix tells you where the estimating work sits: podium and wrap buildings with structural concrete, fire-rated assemblies and MEP rough-in, plus single-family infill and remodels where site access and utility relocations drive cost as much as framing.
Thurston County ground conditions and a wet winter compress the earthwork window, so dewatering, erosion control and import/export decisions carry real money on Olympia sites. Our estimates arrive as Excel and PDF organized by CSI MasterFormat division with marked-up plan sets, produced in Bluebeam Revu, PlanSwift and RSMeans data. Most projects return in 24–48 hours, with rush available. If you are bidding work here, start with our Washington construction estimating overview, then look at how we handle sitework and concrete scope on Puget Sound sites. Contractors working the I-5 corridor between here and Lacey often run the same crews across both jurisdictions, so we keep division structure consistent across those estimates.
For bidders. You get division-level quantities, waste factors and unit costs you can defend in a bid review. Marked-up plan sets show exactly where each quantity came from, so scope gaps surface before submission, not after award.
For builders. You get a buyout-ready format: line items you can send to subs, with clear units and separations. We flag items commonly missed on Olympia infill — erosion control, temporary shoring, wet-weather protection and utility tie-ins.
For owners. You get a cost baseline tied to the drawings and specifications issued, with assumptions stated. That makes change-order review and value-engineering decisions traceable instead of negotiated from memory.
Select a bar to compare Olympia with the largest Washington markets we cover.
129 new housing units in 2025 (-54.3% vs 2024).
67 single-family · 62 multifamily (48%).
Olympia issued 129 new privately-owned residential units in 2025, down from 282 in 2024 — a 54% decline, per the U.S. Census Bureau Building Permits Survey. Single-family accounted for 67 units and multifamily 62, so multifamily still made up 48% of permitted units. Permitted value was about $32M, averaging $246,800 per unit. For bidders, that mix matters more than the headline drop: with fewer total starts, competition per project tightens, and estimates that carry accurate division-level quantities are what keep your number defensible. The city ranked 20 of 25 among the covered state cities by units and represented 0.8% of the 16,004 covered state total. If you bid across the region, our Washington construction estimating page covers how we handle other jurisdictions.
The 48% multifamily share points to podium and wrap-style buildings, which push cost into structural concrete, fire-rated assemblies and MEP rough-in rather than envelope alone. Single-family work is largely infill and remodel, where site access, utility relocations and tight staging drive the number as much as framing. Thurston County soils and a wet winter compress the earthwork window, so dewatering, temporary erosion control and import/export decisions carry real money. On the commercial side, demand across the state is shaped by Seattle-area tech campuses, port and logistics infrastructure, and dense multifamily infill, and Olympia's port-adjacent parcels see some of that logistics pressure. Contractors bidding south of here should also compare our Lacey construction estimating page, since crews and suppliers overlap.
We estimate the scopes that actually appear on Olympia and Thurston County drawings, priced with ZIP-adjusted material and labor data and delivered by division.
Mass excavation, haul-off and import for glacial till sites, plus erosion control and staging for tight infill lots.
CY · LF · TONFootings, stem walls, slab-on-grade and podium decks, with formwork and reinforcement broken out separately.
CY · SF · TONWall, floor and roof framing with stud, plate, joist and sheathing counts, plus typical waste factors for the scope.
LF · EA · SFRoof area, underlayment, flashing and ventilation quantities for steep-slope and low-slope assemblies.
SQ · LF · EAPlumbing, mechanical and electrical counts for multifamily and commercial plans, separated by system and floor.
LF · EA · TONUnit-mix-based budgets for podium and wrap buildings, with common-area and site work carried as separate divisions.
UNIT · SF · LSCustom homes, additions and remodels, with allowances stated for finishes and site conditions you cannot yet see.
SF · LF · EATenant improvements, warehouse and light-industrial shells, with division-level quantities for bid comparison.
SF · CY · TONYou are bidding podium and wrap work against Thurston County crews and need division-level quantities that survive a hard bid review, plus marked-up plan sets showing where every number came from.
You need your scope isolated from the rest of the package. We break out your division with units your foreman can check against the drawings before you sign a subcontract.
You are underwriting 48% multifamily share deals in a year when Olympia permitted only 129 residential units. A defensible cost baseline keeps your pro forma honest through the entitlement cycle.
You issue drawings and need a cost check before the next revision set. We return quantities tied to the sheets you issued, so scope changes are traceable instead of re-estimated from scratch.
You are planning a remodel or tenant improvement on an existing Olympia building and need to know what the drawings actually imply before you commit capital to a contractor's number.
You run small infill and renovation jobs where site access, utility tie-ins and wet-weather protection drive cost as much as framing. We flag those items before you price the job.
We estimate projects across Thurston County and the I-5 corridor, from downtown Olympia through the westside and out to the surrounding communities. If your site is in one of these areas, the division structure and unit costs stay consistent across the estimate.
Olympia's 2025 permit mix was 67 single-family units and 62 multifamily units, so we estimate both ends of that spectrum. The property types below cover most of what comes across our desk in Thurston County.
These projects carry structural concrete at the podium, wood framing above, and fire-rated assemblies between units. We break out each division so your bid reflects the actual construction type, not a blended square-foot number.
Watch for: Podium waterproofing, fire-rated shaft walls, unit-turn MEP rough-in
Tight lots in Olympia mean short staging areas and utility relocations that do not show up on the site plan. We quantify excavation, shoring and connection fees alongside the framing package so the sitework does not disappear into contingency.
Watch for: Utility tie-ins, temporary shoring, tight-lot excavation and export
Kitchen and bath renovations in older Olympia housing stock often uncover framing, wiring and plumbing that predates current code. We estimate the visible scope and list the assumptions that drive change orders once walls open.
Watch for: Existing framing, panel capacity, plumbing venting
Downtown and West Olympia retail and office spaces need demising walls, ADA upgrades and separate metering. We estimate the shell conditions as drawn and flag what the base building does not provide.
Watch for: ADA path of travel, demising walls, HVAC zoning
Port and logistics buildings around Olympia need slab-on-grade, dock equipment and heavy power. We quantify flatwork, structural steel and electrical service in divisions you can send straight to subs.
Watch for: Slab flatness, dock levelers, service amperage
Schools, clinics and public facilities in Thurston County carry prevailing wage and bonding requirements that change the labor line. We estimate to the wage determination and flag certified payroll obligations in the basis of estimate.
Watch for: Prevailing wage, bonding, phased occupancy
Olympia sits in Thurston County where wet winters, glacial soils and a small permitting department shape both schedule and cost. These are the drivers we adjust for on every estimate.
Washington adopts the International Building Code, International Residential Code, International Energy Efficiency Code and Uniform Plumbing Code on a statewide cycle, and the City of Olympia enforces them through its Community Planning and Development department. Confirm the adopted edition and any local amendments with the building department before you price. Energy code requirements for envelope, ventilation and lighting can add scope that is not obvious on the architectural sheets.
IBC · IRC · IECC · City of Olympia Community Planning and DevelopmentMuch of Thurston County is underlain by glacial till, advance outwash and occasional soft silt, so foundation design varies from spread footings to over-excavation with structural fill. A geotechnical report drives the excavation and backfill quantities. Without one, we estimate a range and state the assumption. On hillside lots, retaining walls and shoring can exceed the foundation cost itself.
Glacial till · Advance outwash · Geotechnical report · Structural fillOlympia gets most of its rain between October and April, which compresses the earthwork window and forces dewatering, temporary erosion control and wet-weather protection into the schedule. Winter concrete work needs blankets and accelerators. We price the season you plan to build in, not a dry-season best case, and call out the items that move if the schedule slips.
Dewatering · Erosion control · Winter concrete · Construction stormwater permitOlympia draws from the same labor pool as Tacoma and the south Puget Sound, so carpenter, electrician and plumber rates track those markets. Public work in Thurston County triggers prevailing wage under state law. We price labor with ZIP-code-adjusted rates and note when a project falls under a wage determination, because that single line can swing the bid.
Prevailing wage · ZIP-code-adjusted rates · South Puget Sound labor poolDowntown and West Olympia lots are often small, sloped and already built out, so staging, crane placement and material delivery add cost that a suburban site does not carry. Stormwater detention and treatment requirements under the municipal code can require vaults, rain gardens or bioretention cells. We quantify those systems from the civil sheets and flag any that are shown but not detailed.
Stormwater detention · Bioretention · Crane placement · Municipal codeMost structural material reaches Olympia by truck down I-5 from Tacoma or Portland, so freight and lead times matter more than they do in a major metro. Concrete and asphalt plants are local, but specialty items like structural steel, elevators and switchgear carry longer lead times. We note long-lead items in the estimate so you can lock pricing before the bid date.
I-5 freight · Structural steel · Switchgear · Long-lead itemsOlympia sits on glacial outwash and recessional deposits, with a wet season that runs roughly October through April, and both conditions change what you measure and how you price it. The five sections below cover the trades where those local realities hit the numbers hardest.
Glacial outwash in the Olympia area ranges from clean sand and gravel to till with cobbles and boulders, so a takeoff that assumes uniform excavation productivity will miss. We measure stripping separately from structural excavation, then price rock excavation as an allowance rather than a unit rate, because boulder counts are not knowable from plans. Wet-season work adds temporary erosion control, stabilized construction entrances, and dewatering if the water table is high. Under the state's stormwater rules, you will likely need construction stormwater general permit coverage, and the SWPPP is a line item, not an afterthought. Our sitework estimating services break these out by CSI division 31 so you can see the exposure before you bid.
Olympia's wet climate means lumber delivered to the site gets rained on, so we price for wet-grade handling and extra culling. Framing takeoffs here are driven by the roof geometry: 4:12 to 6:12 pitches are common on single-family, but complex hips and valleys multiply jack rafters and sheathing cuts. We measure wall framing by linear feet of plate and count studs at 16 inches on center, then add headers, trimmers, and blocking separately. Engineered lumber for beams and headers is listed by manufacturer and span, not lumped into a board-foot total. Our framing estimating services output ties every piece back to a plan sheet.
Washington's energy code drives heat pump systems and tighter envelope requirements, which changes the mechanical takeoff: you are counting outdoor units, indoor heads, line sets, and condensate routing rather than a furnace and duct run. Plumbing is measured by fixture count and developed length of pipe, with PEX and ABS or PVC separated. Electrical takeoff runs from service size through panel schedules, device counts, and fixture counts, with dedicated circuits for kitchen and laundry. We organize MEP estimating services by division 22, 23, and 26, and we flag any fixture or equipment that requires a substitution approval before bid.
Residential foundations in Olympia are typically cast-in-place stem walls on continuous footings, with frost depth governing footing elevation. On sloping lots, stepped footings add formwork and concrete that a flat-lot takeoff will not capture. We measure footing and stem wall formwork by contact area, not by linear feet alone, because step-ups multiply the form count. Slab-on-grade assumes a capillary break and vapor retarder; on sites with high groundwater, add a drainage mat and perimeter drain. Reinforcement is taken off by bar size and lap, with typical waste factors applied. See our concrete estimating services and foundation estimating services for how we format those quantities.
Wind-driven rain is the design condition on the Olympic Peninsula side of the Cascades, so roof underlayment and flashing details carry more cost than in drier markets. We take off roofing by squares, with hip and valley length added to the eave and rake, and we count pipe boots, vents, and step flashing individually. On steep pitches, add fall protection and staging to the labor. Wall assemblies typically include a weather-resistive barrier and a drained and vented rainscreen; the furring strips and longer fasteners are separate line items. Roofing estimating services from our team separate material, labor, and accessories so nothing lands in a single square-foot price.
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 |
|---|---|---|---|
| 31 10 00 | Site clearing and grubbing | 8,400 | SF |
| 31 23 16 | Structural excavation, footings | 310 | CY |
| 03 30 00 | Footing concrete, 3,000 psi | 46 | CY |
| 03 30 00 | Stem wall concrete, 3,000 psi | 38 | CY |
| 03 20 00 | Rebar, #4 and #5, incl. lap | 9,600 | LB |
| 03 11 00 | Formwork, footing and stem wall | 2,150 | SF contact |
| 06 10 00 | Wall framing, 2x6 studs @ 16 in. OC | 1,840 | LF plate |
| 07 30 00 | Roofing, architectural shingle | 34 | SQ |
This example shows how we move from plan dimensions to a priced concrete quantity. The dimensions are illustrative and do not describe a specific Olympia project; substitute your own plan dimensions when you run the numbers.
Assume a simple rectangular foundation, 48 ft by 30 ft outside face, with a continuous stem wall 8 in. thick and 3 ft high above the footing. The footing is 16 in. wide by 8 in. thick and runs under the full perimeter.
Step 1 — Perimeter. (48 + 30) x 2 = 156 LF of footing and stem wall.
Step 2 — Footing volume. 16 in. = 1.333 ft; 8 in. = 0.667 ft. 156 LF x 1.333 ft x 0.667 ft = 138.7 CF. Divide by 27 to get CY: 138.7 / 27 = 5.14 CY.
Step 3 — Stem wall volume. 8 in. = 0.667 ft. 156 LF x 3 ft x 0.667 ft = 312.2 CF. 312.2 / 27 = 11.56 CY.
Step 4 — Deduct openings. Two garage door openings, each 9 ft wide by 3 ft high, in the stem wall: 2 x 9 x 3 x 0.667 = 36.0 CF = 1.33 CY. Net stem wall: 11.56 - 1.33 = 10.23 CY.
Step 5 — Apply waste. Typical waste for formed concrete is 5 percent. Footing: 5.14 x 1.05 = 5.40 CY. Stem wall: 10.23 x 1.05 = 10.74 CY.
| Step | Calculation | Quantity | Unit |
|---|---|---|---|
| Perimeter | (48 + 30) x 2 | 156 | LF |
| Footing volume | 156 x 1.333 x 0.667 / 27 | 5.14 | CY |
| Stem wall gross | 156 x 3 x 0.667 / 27 | 11.56 | CY |
| Openings deducted | 2 x 9 x 3 x 0.667 / 27 | 1.33 | CY |
| Stem wall net | 11.56 - 1.33 | 10.23 | CY |
| Footing with 5% waste | 5.14 x 1.05 | 5.40 | CY |
| Stem wall with 5% waste | 10.23 x 1.05 | 10.74 | CY |
Two things change this on a real Olympia lot. First, stepped footings on a sloped site add formwork and concrete at each step, and we take those off separately rather than averaging the wall height. Second, if the excavation hits glacial till with cobbles, the footing subgrade may need over-excavation and structural fill, which is a division 31 line item, not a concrete one. Send the plan set and we will mark up the foundation sheets and return quantities in this format within 24 to 48 hours.
Pricing depends on project type, square footage, and how many trades you want covered. We do not publish a flat rate because a single-family foundation takeoff and a full multifamily estimate are very different scopes. Send the plans and the scope you need and we will quote before we start. Most projects are returned in 24 to 48 hours, and rush turnaround is available when your bid date is close.
We separate excavation into dry-season and wet-season productivity assumptions and add line items for dewatering, stabilized construction entrances, and temporary erosion control. We also carry an allowance for rock excavation rather than a unit rate, because boulder content in glacial deposits is not predictable from a plan set. That way the bid shows the exposure instead of hiding it in a blended cubic-yard price.
Yes. We use ZIP-code-adjusted material and labor pricing with RSMeans data as the base, so your estimate reflects the local market rather than a national average. Wage rates in the Olympia area differ from both Seattle and rural parts of the state, and that difference shows up most in concrete forming, framing, and mechanical labor. If you have current supplier or subcontractor quotes, send them and we will use those instead.
You get an Excel workbook and a PDF, organized by CSI MasterFormat division, plus marked-up plan sets showing what we measured. Each line item includes the CSI code, description, quantity, unit, and where it came from on the drawings. We build takeoffs in Bluebeam Revu and PlanSwift, so the markup is traceable if you need to check a quantity before you submit.
Yes. Multifamily is a large share of Olympia's residential permitting, and we take off those projects by building type, unit mix, and floor. We separate repeat unit quantities from one-off common areas and site work, which keeps the per-unit cost visible. Our multi-family estimating services cover everything from foundations through finishes and MEP rough-in.
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. That means additions, alterations, and commercial permits are not in the count. In 2025 Olympia issued 129 residential units, down from 282 in 2024, with 67 single-family and 62 multifamily units. Use these as a demand signal, not as a measure of total construction activity.
Yes. We cover Thurston County and the surrounding area, including Lacey, Tumwater, and projects along the I-5 corridor. We also handle work in nearby cities such as Shoreline, Puyallup, Sammamish, and Richland when your bid schedule takes you there. The pricing adjustments change by ZIP code, so tell us the project address and we will apply the right rates.
We read the spec and the drawings for the adopted code edition and flag items that the energy code forces into the scope, such as heat pump equipment, tighter envelope assemblies, and ventilation. We do not certify compliance, and you should confirm the adopted code edition with the local building department, since amendments change between cycles. What we do is make sure the cost of those requirements appears in the estimate.
Send the architectural, structural, civil, and MEP drawings, the specification book, and any addenda. If you have a bid form or a scope matrix, include that too, because it tells us how you want the work broken out. For sitework, a geotechnical report saves time on excavation and fill assumptions. If something is missing, we will tell you what we assumed so you can adjust before you bid.
Often yes. Standard turnaround is 24 to 48 hours for most projects, and rush service is available when the schedule is tight. Rush capacity depends on the size of the project and how many trades you need, so call or send the plans with your bid date and we will confirm what is possible. Partial scopes, such as foundations or framing only, move faster than a full building estimate.
Send your drawings and the scope you need priced, and we will return a division-organized takeoff in Excel and PDF, usually within 24 to 48 hours.