Multifamily takeoffs
Unit-mix matrices, common-area breakdowns, and repeated floor-plan counts for Bethlehem's apartment and townhome projects.
EA · SF · LFBethlehem, PA
Construction estimating services in Bethlehem, PA
Bethlehem issued 187 new residential permits in 2025, 94% multifamily. We produce division-by-division takeoffs and estimates for contractors bidding in Northampton and Lehigh counties, delivered in 24–48 hours.
24–48 hours for most projectsTypical turnaround
Every CSI divisionSitework through MEP
Bethlehem ZIP pricingLocal material and labor
Price confirmed firstBefore any work starts
Census BPS · Bethlehem · 2025Real permit data
Bethlehem new housing permits2025
New housing units187Change vs. 2024+23%Permitted construction value$27MAverage value per unit$143,600Rank among covered Pennsylvania cities#4
Single-family: 11 (6%)Multifamily: 176 (94%)
U.S. Census Bureau, Building Permits Survey, 2025. Residential only.
What makes construction estimating in Bethlehem, PA different?
Multifamily-heavy permit volume, adaptive reuse of former industrial sites along the Lehigh River, steep limestone and shale bedrock that drives foundation costs, cold-weather concrete and masonry scheduling, and ZIP-code-adjusted material and labor pricing for the Lehigh Valley market. That mix means unit-repeat takeoffs and rock excavation quantities matter more here than scattered single-family counts.
- Bethlehem permitted 187 new housing units in 2025, #4 among the Pennsylvania cities we cover.
- About 94% were in multifamily buildings; 6% were single-family.
- Permit volume was up 23% compared with 2024.
Bethlehem sits in Northampton and Lehigh counties along the Lehigh River, about 50 miles north of Philadelphia. The city's permit mix is unusual for its size: of 187 new privately-owned residential units permitted in 2025, 176 were multifamily and only 11 were single-family. That means most of the residential work here is apartment and townhome construction, not scattered custom homes. If you bid those projects, your takeoff has to carry unit-mix matrices, repeated floor plans, and shared MEP risers rather than one-off room counts.
We also see steady commercial and institutional work around the former Bethlehem Steel site, the South Side, and the Route 22 corridor, plus warehouse and distribution projects feeding the I-78 and I-81 freight lanes. Our Pennsylvania construction estimating team prices those scopes with RSMeans data adjusted to local ZIP codes, then delivers Excel and PDF takeoffs organized by CSI MasterFormat division with marked-up plan sets. Contractors bidding in Allentown and the Lehigh Valley often need both the residential and commercial sides priced in the same week.
- Coverage
- Bethlehem and nearby Pennsylvania communities
- Deliverable
- Excel estimate + marked-up PDF plans
- Pricing basis
- Bethlehem ZIP-code material and labor costs
- Turnaround
- 24–48 hours for most projects
- Software
- Bluebeam Revu, PlanSwift, RSMeans data
01
For bidders. You need a defensible number before the bid date. We break out labor, material, and equipment by division so you can adjust markups without rebuilding the takeoff.
02
For builders. You need quantities you can buy from. We produce purchase-order-ready lists by CSI section, with waste factors noted, so your superintendent can release material without re-measuring.
03
For owners. You need a budget before design is complete. We estimate from schematic drawings and flag the scope gaps that typically drive change orders in Bethlehem's multifamily and adaptive-reuse projects.
Bethlehem by the numbers
Bethlehem's residential construction pipeline
Select a bar to compare Bethlehem with the largest Pennsylvania markets we cover.
187New housing units, 2025
3.2%Of all units in the Pennsylvania cities we cover
$27MPermitted residential value
94%In multifamily buildings
New housing units permitted in 2025. Source: U.S. Census Bureau, Building Permits Survey.
This city
Bethlehem
187 new housing units in 2025 (+23% vs 2024).
11 single-family · 176 multifamily (94%).
Permit volume is up, but the mix is narrow
Bethlehem permitted 187 new privately-owned residential units in 2025, up 23% from 152 in 2024. That total ranked fourth among the 25 Pennsylvania cities we cover and represented 3.2% of the 5,912 units permitted statewide. The average value per unit was $143,600, and the total permitted value was $27M. For bidders, the signal is straightforward: multifamily work is where the volume is, and the unit count is concentrated in a small number of projects. One 120-unit building can swing the year's numbers. If you are pricing a mid-rise apartment or townhome project here, your competition is likely pricing the same drawings with a similar unit mix. A takeoff that separates building-common scope from unit-repeat scope gives you a cleaner cost-per-unit and a better shot at adjusting your bid without guesswork. Our multi-family estimating services are built around that split.
Industrial legacy and the I-78/I-81 corridors
Bethlehem's industrial past left a large stock of adaptive-reuse candidates, and the city's position between I-78 and I-81 keeps warehouse and distribution work moving through the Lehigh Valley. Those projects do not look like the residential permit data. They carry deep foundations, slab-on-grade with heavy dowel baskets, structural steel, and process utilities. Estimating them means pricing rock excavation, dewatering, and utility relocations that residential bidders rarely touch. We handle that scope through our sitework estimating services and industrial estimating services, with division-level detail on concrete, steel, and MEP. Contractors working across the corridor often compare notes with our Reading and Harrisburg teams because material pricing and labor availability shift across those markets.
Services
Construction estimating services in Bethlehem
We price the scopes that dominate Bethlehem's permit data and the Lehigh Valley's commercial corridors, from unit-repeat multifamily to heavy sitework.
Sitework and utilities
Rock excavation, storm and sanitary mains, and paving quantities for sites on the Lehigh River corridor.
CY · LF · TONConcrete and foundations
Footings, walls, slabs, and rebar schedules priced for limestone and shale bedrock conditions in Northampton County.
CY · SF · TONFraming
Wood and light-gauge steel framing takeoffs with stud, plate, and sheathing counts by floor and unit type.
LF · SF · EARoofing
Membrane and shingle systems with insulation, flashing, and edge-metal quantities for low-slope and steep-slope roofs.
SQ · LF · EAMEP systems
Mechanical, electrical, and plumbing counts for shared risers and unit distribution in mid-rise residential buildings.
LF · EA · TONCommercial interiors
Tenant fit-out takeoffs for offices, labs, and retail along the Route 22 and South Side corridors.
SF · LF · EAResidential estimating
Single-family and small multifamily budgets for infill lots and renovation work in Bethlehem's historic districts.
SF · EA · LFWho we provide estimates for
Who sends Bethlehem plans for takeoff
Multifamily general contractors
Bethlehem issued 176 multifamily units in 2025, 94% of its residential total. You need unit-mix matrices, repeated floor-plan counts, and shared corridor and riser scopes priced once and multiplied correctly.
Commercial and adaptive-reuse builders
South Side and former Bethlehem Steel parcels keep converting to mixed-use. You need selective demolition, structural infill, and new MEP separated by division so the shell and tenant fit-out bid cleanly.
Warehouse and distribution contractors
I-78 and I-81 freight growth around Bethlehem pushes tilt-up and steel distribution shells. You need slab square footage, dowel counts, and racking-ready flatness tolerances quantified before the concrete package goes out.
Institutional and healthcare builders
Lehigh Valley hospital and campus work carries infection-control partitions, med-gas rough-in, and phased turnover. You need those line items broken out rather than buried in a general conditions allowance.
Residential remodelers and townhome builders
Northampton and Lehigh county infill produces rowhouse and duplex work on tight lots. You need framing counts by wall type and roof squares by pitch, not a lump-sum square-foot number.
Subcontractors bidding Tier 2 packages
On Bethlehem multifamily and warehouse jobs you bid after the GC's first round. You need quantities you can defend in a scope review, with waste factors and exclusions stated on the face of the takeoff.
Where we provide estimates
Bethlehem areas and nearby communities we cover
We price work across Northampton and Lehigh counties and the surrounding Lehigh Valley. Send plans from any of these communities and we return the same CSI-organized Excel and PDF takeoff.
Property types
Types of Bethlehem properties we estimate
Bethlehem's 2025 permit data is heavily multifamily, so apartment and townhome takeoffs dominate. The commercial side follows the Lehigh Valley's industrial and institutional base.
Multifamily apartments
Garden and mid-rise apartments with repeated unit plans. We count fixtures, doors, and devices per unit type, then multiply by the unit mix and add shared corridor, stair, and riser scope. See our multi-family estimating services for the standard breakdown.
Watch for: Unit-mix multipliers and shared riser counts
Townhomes and rowhouses
Party-wall construction on narrow lots drives framing and fire-separation quantities. We take off wall types by linear foot, count headers per opening, and separate each unit's MEP so the plumber and electrician can bid per unit.
Watch for: Party-wall firestopping and per-unit MEP separation
Warehouse and distribution
Tilt-up and steel shells along the freight corridors. We quantify slab area, dowels, panel lifts, and dock equipment, and we carry the sitework separately so the building package is not inflated by earthwork.
Watch for: Slab flatness, dowel counts, and dock package scope
Adaptive reuse and mixed-use
Former industrial buildings on the South Side and Bethlehem Steel parcels. Selective demolition, structural infill, and new MEP through existing structure need line-item separation from the new shell scope.
Watch for: Existing-structure unknowns and demolition tonnage
Retail and office fit-out
Tenant improvements along Route 22 and in the downtown core. We price partitions, ceilings, storefront, and HVAC distribution from the landlord shell condition, and we list the base-building items the landlord still owns.
Watch for: Landlord shell condition and demising wall scope
Institutional and healthcare
Hospital, university, and municipal work in the Lehigh Valley. Phased occupancy, infection-control partitions, and med-gas or lab piping require division-level breakout so the specialty trades can be bid separately.
Watch for: Phasing, ICRA barriers, and specialty piping
Local factors
What changes a construction estimate in Bethlehem
The Lehigh Valley is not one pricing environment. The items below move a Bethlehem number more than a generic Pennsylvania adjustment does, and we handle each one explicitly in the takeoff.
Permitting and code review
Bethlehem and the surrounding townships administer their own permits, and plan review comments can add scope before a shovel moves. Confirm the adopted code edition with the local building department, then price review-cycle time in general conditions. On adaptive-reuse and change-of-occupancy projects, expect separate fire-separation and egress review that can change wall ratings after the bid.
City of Bethlehem codes office · Northampton County · Lehigh CountySoils and foundations
The Lehigh River valley carries alluvial soils and fill from the area's industrial past, and limestone geology in parts of the valley can produce sinkholes. A geotech report drives whether you price spread footings, deeper caissons, or rock excavation. On South Side and former steel parcels, buried foundations and slag fill change excavation and backfill quantities.
Lehigh River floodplain · limestone geology · industrial fillClimate and freeze depth
Bethlehem sits in a cold-winter climate with frost depth that sets footing elevations and footing drain detail. Roof snow load and ice-dam protection affect truss design, eave detailing, and underlayment on multifamily roofs. Winter concrete placement adds blankets, accelerators, and heated enclosures to the cost, so schedule assumptions belong in the estimate.
Frost depth · snow load · ice-dam protectionLabor market and union mix
Lehigh Valley labor is shared with Allentown and Easton, and large warehouse or hospital packages pull crews from the same pool. Union and open-shop rates differ, so the wage basis has to be stated. Overtime and per-diem assumptions on fast-track multifamily work can swing the labor line more than material escalation.
Lehigh Valley labor pool · union and open-shop rates · overtime assumptionsStormwater and land development
Pennsylvania land development review drives stormwater management, infiltration, and erosion-control scope on nearly every site. On tight city lots, underground detention and utility relocations add cost that a building-only takeoff misses. We price sitework separately so the building package stays comparable between bidders.
Stormwater management · erosion control · utility relocationMaterial logistics and taxes
Bethlehem is served by Lehigh Valley suppliers and sits close to I-78 and Route 22, so delivery is rarely the constraint; storage on tight urban sites is. Masonry, steel, and roofing lead times still drive the schedule, and Pennsylvania sales tax treatment on materials depends on the contract structure. We state the pricing basis on the takeoff cover.
I-78 and Route 22 · Lehigh Valley suppliers · Pennsylvania sales taxBethlehem estimating guide
How Bethlehem conditions show up in a takeoff, trade by trade
Bethlehem sits in Northampton and Lehigh counties, where the Lehigh River valley brings variable soils, a real winter freeze depth, and a mix of old industrial masonry and new multifamily infill. Each of those conditions changes what a line item looks like on a takeoff, so we price them trade by trade instead of applying one square-foot factor.
Sitework and earthwork
Along the Lehigh River corridor and on former industrial parcels, you get fill, slag, and rubble rather than clean native soil, so a takeoff has to separate unsuitable excavation from topsoil strip and structural fill. We carry line items for unclassified excavation, rock excavation (provisional), undercut and backfill, and erosion and sediment control tied to the NPDES permit. On hillside lots toward South Bethlehem, cut and fill rarely balance, so we show net import or export as a separate quantity. If your bid needs a full site package, our sitework estimating services break this out by CSI Division 31 and 33.
Framing and rough carpentry
Wood-framed multifamily over podium is common here, and the takeoff has to track plate heights, shear wall nailing schedules, and the transition from light gauge to wood at the podium line. We count studs by wall type and length, not by square foot, because Bethlehem plans often mix 2x6 exterior with 2x4 interior and staggered studs on party walls. Floor joists, rim board, hangers, and blocking are itemized separately. Our framing estimating services cover wood, light gauge steel, and the sheathing and housewrap that go with them.
MEP and interiors
Bethlehem's older building stock and new multifamily both drive MEP scope that is easy to undercount. We take off plumbing fixtures by count, domestic water and waste by linear foot with fittings, HVAC equipment by tonnage and CFM, and ductwork by pound or by linear foot depending on your sheet metal sub. Electrical gets device counts, panel schedules, feeder and branch lengths, and lighting by fixture type. Interior finishes follow the same logic: drywall by square foot with levels of finish, doors by type and handing, and hardware sets. Our MEP estimating services cover these divisions in detail.
Concrete and foundations
Freeze depth in this part of Pennsylvania drives footings below the frost line, and we see that as deeper continuous footings, more formwork, and additional concrete per linear foot. On multifamily work in Bethlehem, retaining walls and podium slabs show up often because sites are tight and grades change quickly. Our takeoffs separate 03 30 00 cast-in-place concrete, 03 10 00 concrete forming and accessories, and 03 20 00 concrete reinforcing, with bar lists by placement. We also carry vapor barrier, granular base, and waterproofing under Division 07. See our concrete estimating services and foundation estimating services for how we structure these packages.
Roofing and envelope
Roof systems here need to handle snow load, freeze-thaw cycling, and wind uplift from nor'easters. On low-slope multifamily and commercial roofs we take off membrane by field area, plus tapered insulation by average R-value, cover board, and edge metal by linear foot. Steep-slope roofs get shingles by square with starter, ridge, hip and valley metal counted separately. Flashing at parapets, curbs and penetrations is where bids leak money, so we list it line by line. Our roofing estimating services cover both membrane and steep-slope assemblies.
Scope gaps we see on Bethlehem bids
- Rock excavation carried as a unit rate instead of a provisional sum, so the number never gets tested against actual site conditions.
- Under slab vapor barrier, granular base, and capillary break omitted from the concrete package because they sit between divisions.
- Snow load and drift calculations left out of the structural steel and roof framing takeoff on low-slope additions.
- Temporary heat, hoisting, and winter protection not carried, even though Bethlehem pours and masonry run through freezing months.
- Fire-rated assemblies and penetration firestopping listed by the architect but not priced by any trade on the bid form.
- Final cleaning, testing and balancing, and commissioning left as owner items when the spec assigns them to the contractor.
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 Bethlehem project
- Read the full setArchitectural, structural, civil and MEP drawings, the geotechnical report and every addendum.
- Check Bethlehem 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 BethlehemMaterial 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: Bethlehem multifamily podium project
| Section | Line item | Qty | Unit |
|---|---|---|---|
| 03 30 00 | Cast-in-place concrete, footings | 184 | CY |
| 03 20 00 | Reinforcing steel, footings | 16.5 | TON |
| 03 10 00 | Formwork, continuous footings | 1240 | SF |
| 05 12 00 | Structural steel, podium framing | 42 | TON |
| 06 10 00 | Wood framing, upper floors | 38600 | SF |
| 07 21 00 | Thermal insulation, exterior walls | 21400 | SF |
| 09 29 00 | Gypsum board, units and corridors | 61200 | SF |
| 22 11 00 | Domestic water piping | 3150 | LF |
Worked example: exterior wall framing for a Bethlehem multifamily building
This example prices the exterior wall framing for one floor of a wood-framed multifamily building in Bethlehem. Dimensions are illustrative, not from a specific project. We assume a rectangular floor plate 120 ft by 60 ft, 10 ft floor-to-floor, with 2x6 exterior walls at 16 in. on center and a 2x4 interior corridor wall at 16 in. on center.
| Step | Calculation | Result | Unit |
|---|---|---|---|
| Perimeter | 2 x (120 + 60) | 360 | LF |
| Gross exterior wall area | 360 LF x 10 ft | 3,600 | SF |
| Deduct openings | 3,600 - 420 | 3,180 | SF |
| Studs at 16 in. o.c. | 360 LF / 1.333 ft + 1 | 271 | studs |
| Studs with waste (5%) | 271 x 1.05 | 285 | studs |
| Plates (top x2, bottom x1) | 360 LF x 3 | 1,080 | LF |
| Plate stock with waste (5%) | 1,080 x 1.05 | 1,134 | LF |
| Sheathing | 3,180 SF x 1.10 | 3,498 | SF |
We add 5% waste on studs and plates because Bethlehem plans here routinely include corners, intersections, and blocking that the linear count does not capture. Sheathing gets 10% because of gable ends, cutoffs, and the panel layout on a 360 ft perimeter. Interior corridor walls are taken off the same way, but with 2x4 studs and a separate count for the fire-rated assembly.
From there the takeoff moves to headers, jack studs, and hangers at openings, which we count by opening type rather than by wall area. Hardware, anchors, and sill seal go on their own lines so the bid does not bury them in a lump sum. If the building sits on a podium, the framing transitions to light gauge steel at the transfer level, and we break that out under 05 40 00 rather than mixing it with wood.
The point of showing the arithmetic is that you can see where the waste factors land and adjust them to your own crew. If you want this run against your actual Bethlehem drawings, send the plan set and we will return the takeoff organized by CSI division in Excel and PDF.
FAQ
Bethlehem construction estimating questions
Where does the Bethlehem permit data on this page come from?
The numbers come from the U.S. Census Bureau Building Permits Survey for 2025, which counts permits issued by the city itself for new privately-owned residential units only. That means the 187 total units, the 11 single-family units, and the 176 multifamily units do not include commercial, industrial, or renovation permits. The survey also reports a permitted value of $27M and an average value per unit of $143,600. Use these as a demand signal, not as a cost benchmark for your own project.
What code edition applies to a Bethlehem project?
Pennsylvania adopts the Uniform Construction Code statewide, and the edition in force changes on a cycle set by the state. Bethlehem and Northampton County review plans against that adopted edition, plus local amendments for things like stormwater and historic districts. We do not guess which edition is current for your permit date. Confirm the adopted edition and any local amendments with the City of Bethlehem code office before you finalize a bid, because the edition affects egress, energy, and fire-resistive requirements.
How does Bethlehem's freeze depth affect a foundation takeoff?
Footings in this region are typically required below the local frost depth, which is deeper than what you would see in southern states. On a takeoff that shows up as deeper continuous footings, more formwork per linear foot, and additional concrete per footing run. We carry the depth as a variable so you can test the bid against the geotechnical report. Confirm the exact frost depth with the local building department, since it is set by the adopted code and can be modified by site conditions.
Do you handle both residential and commercial work in Bethlehem?
Yes. Multifamily and residential work makes up most of the permit volume here, but Bethlehem also has commercial and industrial projects along the Lehigh River and near the airport corridor. We take off residential estimating services, commercial estimating services, and industrial estimating services, and we organize everything by CSI MasterFormat division so your sub can pull their scope without reformatting. If a project mixes podium commercial with residential above, we break the takeoff at the transfer level.
What do you need from me to start a Bethlehem takeoff?
Send the plan set, the specifications, and any addenda in PDF. If you have a geotechnical report, a survey, or a stormwater plan, include those too, because they change the sitework and foundation quantities. Tell us the bid date and whether you want the takeoff by division, by trade package, or both. We return Excel and PDF organized by CSI division with marked-up plan sets, and most projects turn around in 24 to 48 hours with rush available.
How do you price labor in Bethlehem?
We use ZIP-code-adjusted material and labor pricing, so the rates reflect the Bethlehem market rather than a national average. That matters here because the labor mix includes union and open shop, and the wage component can swing a bid more than material does. We do not publish a single labor rate for the city because it changes by trade, by contract type, and by the date you bid. If you have your own crew rates, send them and we will apply them instead.
Can you break out a takeoff by trade package for subcontractor bids?
Yes. We can deliver the same takeoff organized by CSI division and also split into trade packages, so a framing sub gets framing quantities and an MEP sub gets MEP quantities without seeing the rest. This is useful on Bethlehem multifamily projects where the podium, the wood frame above, and the sitework go to different bidders. Tell us the package breakdown you want at the start and we will set up the file structure that way.
What software do you use for the takeoff?
We use Bluebeam Revu for plan markup and quantity review, PlanSwift for digital takeoff, and RSMeans data for pricing where a published cost reference is appropriate. The deliverable is Excel and PDF, so you can open it in whatever estimating software you already run. We do not require you to use our tools, and we do not lock the quantities behind a proprietary format. If you need a specific export, tell us before we start.
Do you cover projects outside Bethlehem?
Yes. We cover the surrounding region, including the nearby cities of Allentown and Easton, and we also work in Erie, Reading, Scranton, Lancaster, Harrisburg, and Altoona. If your project is elsewhere in Pennsylvania, the state construction estimating page explains how we handle it. The pricing basis is still ZIP-code adjusted, so a takeoff in Scranton or Erie will not carry Bethlehem rates.
How accurate is a takeoff without a site visit?
We work from the documents you send, so the accuracy depends on how complete they are. If the drawings do not show a vapor barrier or the spec does not name a roof membrane, we price what is shown and flag the gap rather than guessing. For Bethlehem projects we note where a geotechnical report or a stormwater plan would change quantities. We do not claim a fixed accuracy percentage, and we recommend you reconcile our quantities against your own field measurements before you submit a bid.
Other Pennsylvania cities we cover
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Send your Bethlehem project plans for a quote
Send us your Bethlehem plan set and specifications, and we will return a division-organized takeoff in Excel and PDF, usually within 24 to 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.