Multifamily takeoff
Unit-by-unit quantities for apartment buildings, including typical-floor repetition, corridor and core scope.
SF · EA · LFYonkers, NY
Construction estimating services in Yonkers, NY
We prepare quantity takeoffs and construction estimates for Yonkers contractors, developers and owners — multifamily, mixed-use, institutional and sitework — delivered in Excel and PDF by CSI MasterFormat division, with marked-up plan sets, in 24–48 hours for most projects.
24–48 hours for most projectsTypical turnaround
Every CSI divisionSitework through MEP
Yonkers ZIP pricingLocal material and labor
Price confirmed firstBefore any work starts
Census BPS · Yonkers · 2025Real permit data
Yonkers new housing permits2025
New housing units172Change vs. 2024−31%Permitted construction value$21MAverage value per unit$120,100Rank among covered New York cities#8
Single-family: 18 (10%)Multifamily: 154 (90%)
U.S. Census Bureau, Building Permits Survey, 2025. Residential only.
What makes construction estimating in Yonkers different?
Yonkers pricing is driven by Westchester County labor rates, steep hillside sites that require rock excavation and sheeting, dense urban logistics with limited laydown area, gut-renovation of pre-war masonry buildings, and the city's multifamily-heavy permit mix — 90% of 2025 permitted units were multifamily.
- Yonkers permitted 172 new housing units in 2025, #8 among the New York cities we cover.
- About 90% were in multifamily buildings; 10% were single-family.
- Permit volume was down 31% compared with 2024.
Yonkers sits at the northern edge of New York City, and its construction market behaves like a smaller, steeper version of the Bronx. Most of the work we see is multifamily and mixed-use infill along the Hudson and in downtown, plus institutional and infrastructure packages tied to Westchester County and the transit corridors. Because lots are tight and grades are steep, excavation, sheeting and shoring, and crane or pump placement often drive cost more than the superstructure itself. We build estimates that show those items clearly instead of burying them in a general-conditions line.
Our takeoffs are organized by CSI MasterFormat division, priced with ZIP-code-adjusted material and labor data, and returned in Excel and PDF with marked-up plan sets. Most projects turn around in 24–48 hours, and rush delivery is available when a bid date moves. If you are pricing work across the region, the same approach applies to our New York construction estimating coverage, including jobs in New York City and New Rochelle.
- Coverage
- Yonkers and nearby New York communities
- Deliverable
- Excel estimate + marked-up PDF plans
- Pricing basis
- Yonkers 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 return division-by-division quantities with waste factors, unit costs and clarifications so you can adjust markups and still see where the risk sits.
02
For builders. You need quantities you can buy from. We break out concrete, masonry, framing, roofing and MEP by floor and area so your foreman can order to the takeoff instead of re-measuring the plans.
03
For owners. You need a budget before design is finished. We price the scope that is drawn, list the assumptions, and flag the items that will move the number when the drawings catch up.
Yonkers by the numbers
Yonkers's residential construction pipeline
Select a bar to compare Yonkers with the largest New York markets we cover.
172New housing units, 2025
4.7%Of all units in the New York cities we cover
$21MPermitted residential value
90%In multifamily buildings
New housing units permitted in 2025. Source: U.S. Census Bureau, Building Permits Survey.
This city
Yonkers
172 new housing units in 2025 (-30.9% vs 2024).
18 single-family · 154 multifamily (90%).
Permit volume and what it says about Yonkers bidding
Yonkers issued 172 new privately-owned residential units in 2025, down 31% from 249 in 2024, with 154 of those units multifamily — about 90% of the total. Permitted value was $21M, or roughly $120,100 per unit, and the city ranked 8th of 24 covered state cities by units, 4.7% of the 3,635-unit state total. For bidders, that mix means fewer but larger buildings: a handful of multifamily and mixed-use projects carry most of the residential work, so competition concentrates on those packages. When you price one, the superstructure and MEP quantities matter less than the sitework, support-of-excavation and logistics that a hillside lot forces. The same pattern holds across the state, though the volume sits differently — see our New York construction estimating page for how upstate markets compare.
Westchester labor, steep sites and pre-war stock
Westchester County labor rates run above national averages, and Yonkers ZIP codes carry that premium into every trade. Soil and grade are the second driver: much of the city is built on slopes above the Hudson and the Saw Mill River valley, so rock excavation, sheeting and shoring, and retaining walls appear on jobs where a flat-site estimator would not expect them. Third is the existing building stock — pre-war masonry and timber-floor buildings in downtown and along the avenues mean gut-renovation scope, shoring of existing walls, and hazmat allowances that must be confirmed by testing. Contractors bidding nearby should compare notes with our New Rochelle construction estimating coverage, which faces similar county pricing and urban logistics.
Services
Construction estimating services in Yonkers
We price the scopes that show up most often on Yonkers plans, from hillside foundations to multifamily fit-out.
Foundation and excavation
Rock excavation, sheeting and shoring, footings and retaining walls for steep Westchester sites.
CY · SF · LFConcrete estimating
Formwork, rebar, slab-on-deck and foundation concrete priced by element and floor.
CY · TON · SFFraming estimating
Wood and light-gauge framing quantities with sheathing, hardware and typical waste factors.
BF · SF · EAMEP estimating
Plumbing, HVAC and electrical takeoffs for residential and mixed-use buildings, by system and floor.
LF · EA · TONRoofing estimating
Membrane, flashing and insulation quantities for flat and low-slope roofs on urban buildings.
SF · LF · EASitework estimating
Earthwork, utilities, paving and erosion control for tight urban lots with limited laydown.
CY · LF · TONCommercial estimating
Tenant fit-out, retail and institutional packages priced division by division for bid or budget.
SF · EA · LSWho we provide estimates for
Who we work with in Yonkers
General contractors
Bidding downtown infill and Hudson-front mixed-use against four or five other GCs, you need division-level quantities and a clean general-conditions breakout before the bid date, not a lump sum.
Subcontractors
Concrete, framing and MEP subs working Yonkers jobs need floor-by-floor quantities they can buy from, because tight lots mean no room to store extra material or re-measure mid-pour.
Developers
You are underwriting multifamily and mixed-use sites in a market where 90% of permitted units are multifamily; you need a hard cost budget that separates excavation and shoring from superstructure.
Architects
When you issue a 60% set for a Westchester County client, a third-party quantity check catches drawing gaps and scope overlaps before they become change orders.
Owners and property managers
For capital repairs and interior fit-outs in older Yonkers buildings, you need a defensible scope list and unit costs so you can compare contractor proposals on the same basis.
Public and institutional builders
School, transit and municipal work in and around Yonkers runs on prevailing wage and strict bid forms; we organize quantities by CSI division so your bid package lines up with the spec book.
Where we provide estimates
Yonkers areas and nearby communities we cover
We take off plans for projects across Yonkers and the lower Hudson Valley, from downtown infill to suburban sites in southern Westchester. If your job sits near a city line, the same ZIP-code-adjusted pricing applies.
Downtown and central Yonkers
- Getty Square
- Downtown Yonkers
- Ludlow
- Park Hill
- Nodine Hill
- Chicken Island
Hudson waterfront and west
- Hudson River waterfront
- Warburton Avenue corridor
- Northwest Yonkers
- Greystone
- Nepperhan
East and northeast Yonkers
- Bronxville border
- Crestwood
- Colonial Heights
- Lincoln Park
- Southeast Yonkers
Nearby Westchester and Bronx communities
- New Rochelle
- Mount Vernon
- Bronxville
- Eastchester
- Tuckahoe
- Hastings-on-Hudson
- Riverdale, Bronx
Property types
Types of Yonkers properties we estimate
The permit mix tells the story: 172 new privately-owned residential units were permitted in 2025, 154 of them multifamily, and 90% of the total was multifamily. That is why most of our Yonkers takeoffs are mid-rise apartment and mixed-use, with a steady share of institutional, retail and renovation work.
Mid-rise multifamily
Four- to eight-story apartment buildings on tight infill lots, often with a podium or one level of parking. We break out concrete, masonry, framing and MEP by floor so you can see cost per unit and cost per gross square foot.
Watch for: Podium slab, shear walls, elevator shaft, trash chute, roof screen.
Mixed-use infill
Ground-floor retail under residential floors, common along the Getty Square and Warburton Avenue corridors. Separate structural systems and separate MEP zones drive the takeoff; we price tenant fit-out as an allowance, not a guess.
Watch for: Storefront glazing, grease duct, separate utilities, demising walls.
Adaptive reuse and renovation
Older masonry and timber buildings converted to apartments or offices. Existing conditions control the number, so we quantify selective demolition, structural reinforcing, new floor openings and full MEP replacement rather than assuming new-build rates.
Watch for: Hazardous materials, floor leveling, lintel replacement, riser replacement.
Institutional and school work
Public schools, churches and county facilities in and around Yonkers. These packages are specification-driven and often prevailing wage, so we organize quantities by CSI division and flag the sections where the spec book adds scope beyond the drawings.
Watch for: Prevailing wage, phasing around occupancy, fire-rated assemblies.
Retail and commercial fit-out
Restaurants, medical offices and service retail in existing buildings. The shell is usually fixed, so the estimate turns on MEP capacity, hood and grease duct, ADA upgrades and the landlord's work letter versus your scope.
Watch for: Make-up air, grease duct, ADA restrooms, utility upgrades.
Single-family and small residential
Only 18 single-family units were permitted in 2025, so this is a smaller share of Yonkers volume, but we still take off new houses, additions and two-family conversions on the city's steep east-side lots.
Watch for: Retaining walls, stepped footings, driveway grades, sewer lateral.
Local factors
What changes a construction estimate in Yonkers
Yonkers pricing is not Westchester-generic. The city's own code, steep grades, old infrastructure and New York labor market each move the number, and the permit data shows how much of the work is multifamily.
City code and permitting
Yonkers administers its own building code and plan review, and Westchester County adds health and environmental review on many sites. New York State has adopted the 2020 Energy Code with local amendments, so confirm the enforced edition with the Yonkers Department of Housing and Buildings before you price envelope, lighting and HVAC efficiency. Plan review comments on egress, fire separation and parking can add scope after your bid.
Yonkers Department of Housing and Buildings · Westchester County Department of Health · 2020 New York State Energy CodeSteep grades and rock
Much of Yonkers east of the Saw Mill River Parkway sits on slopes that require stepped footings, retaining walls and, in many locations, rock excavation. We quantify over-excavation and backfill separately from structural fill, and we carry sheeting and shoring as its own line because on tight lots it is often the largest sitework item. Soil borings and a geotechnical report change this number more than any finish selection.
Saw Mill River Parkway · geotechnical report · rock excavation · sheeting and shoringClimate and stormwater
Lower Westchester gets coastal storm surges and nor'easters, and the Hudson shoreline is mapped for flood hazard. We price flood-resistant assemblies, backwater valves and sump systems where the site requires them, and we check that roof drainage and detention sizing match the city's stormwater requirements. Confirm the adopted flood maps and local drainage criteria with the building department and the city engineer.
FEMA flood maps · Hudson River shoreline · stormwater detention · backwater valveLabor market and wages
Yonkers labor rates sit close to New York City because crews and materials come out of the same metropolitan pool, and public work carries prevailing wage under state law. That compresses the gap between open-shop and union pricing on large jobs. We price with ZIP-code-adjusted labor and note where a project's wage determination or certified payroll requirements change the labor burden.
New York State prevailing wage · Westchester County · ZIP-code-adjusted labor · certified payrollTight lots and land use
Downtown and waterfront parcels are small, often with zero lot-line conditions, so staging, material hoisting and crane or pump placement become real cost items rather than assumptions. We carry them in general conditions and note when a site will need street occupancy permits, a construction fence or an off-site staging area. Zoning bulk, parking and setback requirements can also shrink the buildable area after you have priced the drawings.
zero lot line · street occupancy permit · construction staging · Yonkers zoningMaterials and logistics
Almost everything arrives by truck through Westchester or down from the Bronx and New Jersey, and delivery windows on city streets are short. We add handling and small-quantity surcharges where the takeoff shows tight access, and we price masonry, concrete and steel with current regional data rather than a national average. Sales tax treatment on materials depends on the contract structure, so confirm it with your accountant before you finalize the bid.
Westchester County · Bronx · regional material pricing · New York sales taxYonkers estimating guide
How Yonkers conditions show up in a takeoff, trade by trade
Yonkers sits on steep Westchester County ground where rock, tight lots and an older building stock change what you quantify. Each trade below carries line items that behave differently here than on flat suburban work.
Sitework and foundations
Rock excavation is the first thing we quantify separately. On hillside lots you need a rock line item measured by cubic yard of actual removal, not a lump sum, plus over-excavation and backfill by cubic yard and disposal by ton or load. Underpinning and sheeting show up on additions and infill, priced per linear foot of wall. The City of Yonkers sits in Westchester County, and steep grades toward the Hudson mean retaining walls and stepped footings are common. Send us the geotech report if you have one; it changes the rock quantity more than anything else on the sheet. Our sitework and foundation takeoffs carry these as separate lines so your bid shows where the risk sits.
Framing and carpentry
Framing on Yonkers multifamily and mixed-use work means wood-frame over podium, or steel stud in commercial cores. We quantify floor joists, headers, sheathing and blocking by piece and square foot, and we separate treated lumber at grade from interior framing. Older houses in Yonkers often get gut renovations, where the takeoff has to allow for sistering, new headers and reframing openings that the plans only show as "verify in field." Our framing takeoffs list those verification items as allowances rather than burying them. Confirm the adopted code edition with the local building department before you fix the framing package, because wind and seismic detailing affects the hardware count.
Roofing and envelope
Roofing in this climate has to handle snow load and freeze-thaw, and the takeoff should reflect both. We measure roof area by square, with separate lines for underlayment, ice and water shield at eaves and valleys, flashing by linear foot, and insulation by R-value and area. On flat roofs over multifamily buildings, tapered insulation and drain locations drive the quantity more than the field area does. We also take off air barrier, sheathing and cladding separately, because on steep hillside sites scaffolding and swing stage time is a real cost. Confirm the adopted energy code with the local building department before you lock in insulation values.
Concrete
Concrete here is rarely a simple slab. We take off footings, stem walls, slab-on-grade, elevated slabs and columns by cubic yard with formwork by square foot of contact area, and we list rebar by size and total weight. On hillside and infill projects, concrete is often pumped, so pump setup and small-load surcharges get their own lines. Typical waste factors run 5 to 10 percent on formed concrete, but on tight urban sites with short pours the over-order is usually higher. A concrete takeoff that ignores access and pump time will read low against the bids you actually receive.
MEP systems
Mechanical, electrical and plumbing on Westchester projects is where scope gaps cost the most. We take off ductwork by pound and linear foot, piping by diameter and linear foot, fixtures by count, and electrical by device, fixture and feeder length. In Yonkers, older buildings mean new systems must thread through existing chases, so we measure riser and core drilling separately. Sprinkler work follows NFPA 13 and is quantified by head count plus main and branch pipe. On larger jobs the MEP package is often design-build, so the plans show capacity but not routing; we flag every line that depends on a shop drawing. Our MEP takeoffs keep those assumptions visible instead of hidden in a single number.
Scope gaps we see on Yonkers bids
- Rock excavation and disposal shown as an allowance instead of a measured quantity, then carried as a zero in the bid.
- Underpinning and sheeting on additions left off because the plans show new footings only.
- No line for pump trucks, crane picks or material hoisting on steep or tight lots.
- Temporary protection, sidewalk sheds and street-use permits missing from the general conditions.
- Existing conditions allowances for gut renovations, including sistering and reframing, omitted entirely.
- Sprinkler and standpipe work scoped to the plumbing bid with no head count or pipe footage.
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 Yonkers project
- Read the full setArchitectural, structural, civil and MEP drawings, the geotechnical report and every addendum.
- Check Yonkers 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 YonkersMaterial 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: Yonkers wood-frame multifamily over podium
| Section | Line item | Qty | Unit |
|---|---|---|---|
| 03 30 00 | Podium slab concrete, 8 in. | 412 | CY |
| 05 12 00 | Structural steel columns and beams | 18.4 | TON |
| 06 10 00 | Floor joists, wood I-joist | 9,860 | LF |
| 06 16 00 | Sheathing, 3/4 in. plywood | 14,200 | SF |
| 07 21 00 | Batt insulation, walls | 22,400 | SF |
| 09 21 16 | Gypsum board, 5/8 in. type X | 31,700 | SF |
| 22 11 16 | Domestic water piping, PEX | 6,240 | LF |
| 21 13 13 | Sprinkler heads and branch pipe | 348 | EA |
Worked example: rock excavation for a Yonkers hillside addition
You are pricing a rear addition on a sloped lot in Yonkers, Westchester County, where the plans show a stepped footing and the geotech report calls out shallow rock. The dimensions below are illustrative; replace them with your own survey and boring data.
We take the excavation footprint as 32 ft by 18 ft, with an average depth to subgrade of 4 ft on the uphill side and 7 ft on the downhill side. That gives an average depth of 5.5 ft. The geotech report estimates that 40 percent of the cut is rock requiring hoe-ram or drilling and splitting, and the rest is common earth.
| Step | Calculation | Quantity | Unit |
|---|---|---|---|
| Excavation footprint | 32 ft × 18 ft | 576 | SF |
| Total cut volume | 576 SF × 5.5 ft ÷ 27 | 117.3 | CY |
| Rock portion | 117.3 CY × 0.40 | 46.9 | CY |
| Common earth portion | 117.3 CY × 0.60 | 70.4 | CY |
| Rock swell after breakage | 46.9 CY × 1.50 | 70.4 | CY |
| Earth swell | 70.4 CY × 1.25 | 88.0 | CY |
| Total haul volume | 70.4 + 88.0 | 158.4 | CY |
| Truck loads at 14 CY loose | 158.4 ÷ 14 | 11.3 | loads |
Rock does not leave the ground at its in-situ volume. Breaking and loading swells it, and we use a typical 50 percent swell for rock and 25 percent for earth. That is why the 46.9 CY of rock becomes 70.4 CY in the truck. If you bid the rock at its bank volume and pay for hauling by the load, you undercount trucks by roughly a third.
Next, add the items the excavation number does not cover. Backfill against the foundation runs about 30 percent of the cut volume, so 35.2 CY of compacted fill, ordered at 1.15 for compaction loss, or 40.5 CY. Disposal is priced per ton, not per yard, so you need the unit weight: common earth at roughly 1.35 tons per loose CY and rock at roughly 1.55 tons per loose CY. That is 118.8 tons of earth and 109.1 tons of rock, about 228 tons total.
Finally, separate the risk lines. Rock excavation is measured, not allowed. Add a line for over-excavation below footing subgrade, typically 12 in. under the entire footing area, and a line for dewatering if the boring logs show groundwater. On a Yonkers hillside, access for the excavator and the truck staging area often controls the schedule more than the volume does. If the only access is a narrow drive, price the haul in smaller trucks and expect more loads.
FAQ
Yonkers construction estimating questions
Where does the Yonkers permit data on this page come from?
The 2025 figures come from the U.S. Census Bureau Building Permits Survey, which reports permits issued by the city itself. The survey counts new privately-owned residential units only, so it excludes commercial, institutional and renovation permits. In 2025 Yonkers issued 172 residential units, down 31 percent from 249 in 2024, with 154 of those units in multifamily buildings. That is 90 percent multifamily, which tells you where the estimating demand sits.
Do you price rock excavation in Yonkers or carry it as an allowance?
We measure it. If you have a geotech report with boring logs, we use the rock elevation to compute a rock volume in cubic yards and price it as its own line. If you do not have borings, we state the assumption on the takeoff and show the quantity at that assumed depth, so you can see exactly what you are carrying. Allowances hide the risk; a measured line lets you decide how to handle it.
What turnaround do you offer on a Yonkers multifamily takeoff?
Most projects are returned in 24 to 48 hours. Rush turnaround is available when you have a hard bid date. Deliverables come in Excel and PDF, organized by CSI MasterFormat division, with marked-up plan sets so you can trace every quantity back to the sheet it came from. For a full multifamily building, send the architectural, structural and MEP sets together; pricing from a partial set forces assumptions we would rather document.
How do you handle Westchester County labor and material pricing?
We price with ZIP-code-adjusted material and labor rates using RSMeans data, so Yonkers rates reflect the local market rather than a national average. That matters on labor-heavy trades like concrete forming, carpentry and MEP rough-in. We also separate material from labor on the takeoff so you can apply your own subcontractor quotes to the quantities without redoing the math.
Can you take off a gut renovation of an older Yonkers house?
Yes, and those jobs need different treatment than new construction. We carry existing conditions as measured allowances: sistering, new headers, reframing openings, and replacement of deteriorated sheathing or framing. We list each as a separate line with a stated quantity basis, because the plans usually say "verify in field." If you walk the house before the bid, send us your field notes and we will adjust the quantities.
Which trades do you cover for Yonkers commercial and industrial work?
We cover all CSI divisions, including sitework, concrete, framing, roofing, MEP and finishes. On commercial and industrial projects in Yonkers, the MEP package is often the largest and the least defined, so we take it off by system and flag every line that depends on a shop drawing. Sprinkler work is quantified by head count and pipe footage under NFPA 13.
Do you need the full plan set to start?
For an accurate takeoff, yes. Architectural, structural, civil and MEP sets give us the dimensions and details we need to measure rather than assume. If you only have a partial set, we can start, but we will list every assumption on the takeoff and mark the quantities that depend on missing sheets. That way you know which numbers are firm and which are placeholders.
How do you treat waste factors on your takeoffs?
We apply typical waste factors by material and state them on the sheet. Formed concrete usually runs 5 to 10 percent, framing lumber 5 to 10 percent, gypsum board 10 percent, and roofing 10 percent for field area plus cut waste at hips and valleys. On tight urban sites, short pours and small deliveries push the concrete over-order higher. We show the factor so you can adjust it to your own purchasing.
Do you cover projects in nearby cities?
Yes. We cover New York City, New Rochelle, Buffalo, Rochester, Syracuse and Albany, along with the rest of New York State. The pricing basis stays ZIP-code adjusted, so a New Rochelle or Bronxville job prices differently from an upstate one. If your project sits in a neighboring municipality, send the address with the plans and we will price it to that location.
What do you deliver besides the quantity sheet?
You get an Excel workbook organized by CSI MasterFormat division, a PDF of the same takeoff, and a marked-up plan set showing where each quantity was measured. The Excel file lets you sort by trade, apply your own unit costs, and compare against subcontractor bids. We can also break the takeoff into bid packages if you are sending scopes out separately.
Other New York cities we cover
Popular services in Yonkers
Send your Yonkers project plans for a quote
Send your plans and we will return a division-organized takeoff with marked-up sheets in 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.