Foundation takeoff
Pier counts, beam depths, and post-tension slab areas priced for expansive clay and high water tables across the metro.
EA · CY · SFHouston, TX
Construction estimating services in Houston, TX
Houston leads Texas in new residential permits, and the mix skews multifamily. We produce CSI-organized takeoffs and estimates for contractors bidding in Harris County and across the Gulf Coast, with ZIP-code-adjusted material and labor pricing.
24–48 hours for most projectsTypical turnaround
Every CSI divisionSitework through MEP
Houston ZIP pricingLocal material and labor
Price confirmed firstBefore any work starts
Census BPS · Houston · 2025Real permit data
Houston new housing permits2025
New housing units11,878Change vs. 20240%Permitted construction value$2.8BAverage value per unit$237,600Rank among covered Texas cities#1
Single-family: 4,774 (40%)Multifamily: 7,104 (60%)
U.S. Census Bureau, Building Permits Survey, 2025. Residential only.
What makes construction estimating in Houston different?
Houston pricing turns on five local drivers: expansive clay soils that push pier and post-tension foundation scope, hurricane-zone wind uplift on roofing and framing, flat terrain and high water tables that drive drainage and detention, a 60% multifamily permit share, and ZIP-adjusted labor rates that vary widely across the metro.
- Houston permitted 11,878 new housing units in 2025, #1 among the Texas cities we cover.
- About 60% were in multifamily buildings; 40% were single-family.
- Permit volume was flat compared with 2024.
Houston issued 11,878 new privately-owned residential units in 2025, essentially flat against 11,898 in 2024, with multifamily at 7,104 units, or 60% of the total. The city alone accounts for 16.5% of the 72,008 units permitted across the 25 Texas cities we cover, and it ranks first among them. That volume means you are usually bidding against several contractors on the same set of drawings, so the estimate that wins is the one with the fewest open assumptions.
We take off the full scope by CSI MasterFormat division, mark up the plan set, and deliver Excel and PDF files within 24–48 hours on most projects, with rush turnaround available. Pricing is adjusted by ZIP code using RSMeans data, which matters in a metro where labor and material costs shift between the Inner Loop, the Energy Corridor, and the outlying counties. If your work crosses city limits, see our Texas construction estimating coverage, or compare Dallas and Austin where the soil and wind assumptions change.
- Coverage
- Houston and nearby Texas communities
- Deliverable
- Excel estimate + marked-up PDF plans
- Pricing basis
- Houston 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 number you can defend line by line. We break out foundations, framing, roofing, and MEP by division, flag scope gaps, and return the takeoff in 24–48 hours so you can bid the same week.
02
For builders. You are buying out trades, not just bidding. We quantify pier counts, post-tension slab areas, roof squares, and rough-in fixture counts so your purchase orders match what the field installs.
03
For owners. You are comparing budgets before design is complete. We price the drawings you have, state the assumptions in writing, and separate hard construction cost from allowances you will still need to carry.
Houston by the numbers
Houston's residential construction pipeline
Select a bar to compare Houston with the largest Texas markets we cover.
11,878New housing units, 2025
16.5%Of all units in the Texas cities we cover
$2.8BPermitted residential value
60%In multifamily buildings
New housing units permitted in 2025. Source: U.S. Census Bureau, Building Permits Survey.
This city
Houston
11,878 new housing units in 2025 (-0.2% vs 2024).
4,774 single-family · 7,104 multifamily (60%).
Multifamily carries the Houston permit volume
At 7,104 multifamily units against 4,774 single-family units, Houston's 2025 residential permits are 60% multifamily. For an estimator, that means podiums, wrap construction, and repeated unit plans rather than one-off custom homes. Unit-plan repetition rewards careful quantity work: get the typical unit right, multiply by the unit count, then add the corridor, stair, and amenity areas that do not repeat. The permitted value of $2.8B against 11,878 units averages $237,600 per unit, which is a blended figure across both product types and not a cost you should quote directly. If your pipeline is garden-style or mid-rise, our multi-family estimating services follow that unit-mix method.
Flat volume, sharper competition
Total units moved from 11,898 in 2024 to 11,878 in 2025, a change of 0% at the city level. Flat volume with steady contractor count means the same number of bidders chasing the same work, and that is where estimate quality separates winners. The 16.5% share of the 72,008 units permitted across the covered Texas cities confirms Houston is still the state's largest single market, but it is not growing. Price the risk you can document, not the risk you assume. Contractors working from San Antonio into Houston should expect different wind and soil assumptions on the same building type.
Services
Construction estimating services in Houston
Houston's clay soils, hurricane-zone wind loads, and flat, poorly draining sites drive the scope we quantify most often. These are the takeoffs we produce for work in Harris County and the surrounding counties.
Concrete estimating
Slab-on-grade, podium decks, tilt-wall panels, and site concrete quantified with formwork and reinforcement separated.
CY · SF · TONFraming takeoff
Wood and cold-formed studs, roof trusses, and sheathing counted to hurricane-zone nailing and uplift requirements.
LF · SF · EARoofing estimating
Roof squares, underlayment, and edge metal for steep-slope and low-slope assemblies, with wind uplift detailing noted.
SQ · LFMEP estimating
Fixture counts, ductwork, and electrical devices taken off for multifamily unit plans and commercial tenant fit-outs.
EA · LF · TONSitework estimating
Mass grading, drainage, detention, and utility runs for flat sites where stormwater moves slowly and fill is imported.
CY · LF · ACResidential takeoff
Single-family and townhome scopes priced per plan, with options and elevation changes quantified separately.
SF · EACommercial estimating
Divisions 1–33 for retail, office, and light industrial, organized for bid comparison and buyout.
SF · LSWho we provide estimates for
Who we prepare Houston estimates for
General contractors
You are bidding Inner Loop multifamily and Energy Corridor office fit-outs against several contractors. We give you division-level takeoffs with marked-up plans so your bid has fewer open assumptions.
Subcontractors
You need quantities fast for framing, roofing, or MEP packages. We break out pier counts, roof squares, and fixture counts so your proposal matches the field scope.
Developers
You are comparing land cost to hard cost in Katy, Sugar Land, or Baytown. We price the drawings you have and separate allowances you still need to carry.
Architects
You need a cost check before design development. We quantify assemblies by CSI division and flag scope gaps so your client sees the budget impact early.
Owners and facility managers
You are budgeting repairs or tenant improvements near the Texas Medical Center or downtown. We price existing conditions and note assumptions in writing.
Property managers
You handle recurring capital projects across a Houston portfolio. We provide consistent takeoffs for roofing, paving, and MEP replacements so you can compare bids apples to apples.
Where we provide estimates
Houston areas and nearby communities we cover
We estimate projects across Harris County and the surrounding counties. Our ZIP-code-adjusted pricing uses RSMeans data for each location.
Central Houston
- Downtown
- Midtown
- Museum District
- Texas Medical Center
- Upper Kirby
- Montrose
- Heights
West and southwest
- Energy Corridor
- Memorial
- Bellaire
- West University Place
- Sugar Land
- Katy
North and northwest
- Spring
- The Woodlands
- Tomball
- Cypress
- Conroe
Southeast and east
- Pasadena
- Baytown
- Deer Park
- La Porte
- League City
Property types
Types of Houston properties we estimate
Houston's 2025 permit mix was 60% multifamily, with 7,104 units, and 4,774 single-family units. We estimate both, plus the commercial and industrial work that follows population growth.
Multifamily
Garden-style and mid-rise apartments dominate Houston's permit volume. We take off unit mixes, balconies, breezeways, and amenity areas by division.
Watch for: Balcony waterproofing, unit turnover, and amenity MEP loads.
Single-family
Production and custom homes from Katy to Baytown. We quantify slab areas, roof squares, and framing counts for purchase orders.
Watch for: Slab thickness, roof pitch, and window-to-wall ratios.
Commercial offices
Energy Corridor and downtown tenant improvements. We estimate demising walls, ceiling systems, and HVAC distribution for build-outs.
Watch for: Existing conditions, after-hours work, and sprinkler modifications.
Industrial and warehouse
Distribution centers near the Port of Houston and along the Grand Parkway. We take off slab-on-grade, tilt-wall panels, and dock equipment.
Watch for: Slab flatness, panel reinforcing, and fire pump capacity.
Institutional and medical
Work near the Texas Medical Center and university campuses. We estimate lab casework, medical gas, and isolation room systems.
Watch for: Clean room standards, medical gas certification, and infection control.
Retail and hospitality
Restaurants, hotels, and retail shells in mixed-use developments. We quantify kitchen equipment, grease ducts, and storefront glazing.
Watch for: Grease interceptor sizing, hood suppression, and ADA clearances.
Local factors
What changes a construction estimate in Houston
Houston's flat terrain, clay soils, and hurricane exposure drive costs that inland cities do not see. The items below are the ones we watch closest.
Code and permitting
Houston has no zoning, but it enforces the Houston Amendments to the International Building Code and International Residential Code. The permitting process through Houston Public Works can add review time. We price plan review comments and inspections as separate line items. Confirm the adopted code edition with the local building department before finalizing your estimate.
Houston Amendments to IBC · Houston Public Works · Harris CountySoils and foundations
Houston's expansive clay soils shrink and swell with moisture changes, so most structures need drilled piers or post-tension slabs. We take off pier depths, bell diameters, and reinforcing based on the geotechnical report. For slab-on-grade, we quantify vapor barriers and moisture conditioning. Without a soils report, we state assumed bearing capacity in writing.
Expansive clay · Drilled piers · Post-tension slabs · Geotechnical reportClimate and wind
Hurricane and tropical storm wind loads govern roof attachments, glazing, and structural connections along the Gulf Coast. We estimate roof deck fastening, impact-rated windows, and emergency generator capacity. Floodplain regulations in Harris County may require elevated foundations or flood vents. We check the effective flood insurance rate map for each project.
Wind-borne debris region · Flood Insurance Rate Map · Harris County Flood Control DistrictLabor market
Houston's construction labor pool is large but competitive, especially for skilled trades like electricians and pipefitters. Wage rates vary by ZIP code and trade. We use RSMeans data adjusted for Houston, and we flag when a scope requires certified welders or licensed sprinkler fitters. Overtime and shift premiums are added when the schedule demands.
RSMeans Houston · Skilled trades · Overtime premiumsSite and drainage
The flat topography and clay soils make drainage a major cost. We estimate detention ponds, storm sewer, and paving quantities. Houston's stormwater regulations may require on-site detention or water quality measures. For sites near the Ship Channel, we account for industrial waste and permitting. We also quantify erosion control and temporary sediment basins.
Detention ponds · Storm sewer · Houston stormwater regulations · Ship ChannelMaterials and logistics
Houston is a major port and manufacturing hub, so materials are generally available. However, imported products like steel and specialty equipment can face tariffs and shipping delays. We estimate based on current market pricing and note long-lead items. For projects in outlying counties, we add freight and mobilization costs. We also account for sales tax exemptions if applicable.
Port of Houston · Steel tariffs · Long-lead items · Sales taxHouston estimating guide
How Houston conditions show up in a takeoff, trade by trade
Houston's flat, clay-heavy sites, hurricane wind requirements, and mixed residential and commercial market change what you count and how you price it. Here is how we adjust each major trade.
Sitework and drainage
Harris County's clay soils and flat terrain mean cut and fill rarely balance on a Houston site. We take off stripping depth, import or export volume, and the lime or cement stabilization often needed under paving. Detention is usually the largest earthwork item; we measure pond excavation, side slopes, and outfall structures separately. For commercial pads, we also count temporary erosion control and the crushed stone base by tonnage, not square yards. If your project includes paving, our sitework estimating services break out subgrade prep, lime stabilization, and asphalt by mix type. Confirm local drainage criteria with the city or county engineer before pricing.
Framing and envelope
Houston's wind-borne debris region drives opening protection and roof sheathing nailing patterns that change material counts. We take off studs by linear feet with plates, headers, and blocking, then sheathing by sheet count with waste. For multifamily, we separate demising walls from corridor walls because fire ratings change the assembly. Roofing takeoff includes underlayment type, drip edge, and the number of penetrations, since flat roofs on low-rise commercial buildings are common here. Our framing estimating services and roofing estimating services both account for these details. Always confirm the adopted wind speed and exposure category with the local building department before finalizing quantities.
Interior finishes and specialties
Multifamily interiors in Houston often specify luxury vinyl plank and carpet in units, with tile in wet areas. We take off flooring by square foot per unit type, then add transition strips and base by linear foot. Drywall takeoff separates unit walls from common areas because levels of finish can differ. We count doors, frames, and hardware by type and swing, then specialties like fire extinguisher cabinets and bath accessories by count. For commercial tenant improvements, we measure ceiling grid by square foot and light fixtures by count. Our multi-family estimating services and commercial estimating services both include these divisions. Always check the finish schedule against the plans for missing room types.
Concrete and foundations
Most Houston commercial and multifamily projects sit on drilled piers or post-tensioned slabs, not spread footings, because of expansive clays. We take off pier diameter, depth, and concrete volume by count, then slab area with thickened edges and turn-downs. For elevated decks, we separate mild steel from post-tensioning and count anchor bolts and embeds. Warehouse slabs are typically 5 to 7 inches with doweled joints; we measure joint layout by linear feet. Our concrete estimating services and foundation estimating services handle both. Verify the geotechnical report's pier depths before you rely on a takeoff, since depths drive the largest cost swing.
MEP systems
Houston's humid climate pushes HVAC sizing toward higher latent loads, which means more dehumidification and larger condensate lines than a dry-climate takeoff would show. We count tonnage by zone, then ductwork by pound and linear foot, separating flex from hard duct. For plumbing, we take off fixture counts, water heater type, and gas piping by diameter and length. Electrical takeoff includes devices, panel schedules, and conduit by trade size. On industrial and data center work, we separate process piping from domestic water. Our MEP estimating services cover these divisions. Confirm local amendments to the mechanical and plumbing codes with the permitting office.
Scope gaps we see on Houston bids
- Pier depths shown as 'to be determined by geotechnical engineer' with no allowance for deeper drilling or rock excavation.
- Detention pond excavation and outfall structures left out when the civil drawings are issued separately from the architectural set.
- Wind-borne debris protection for glazing and doors omitted on commercial buildings inside the wind-borne debris region.
- Temporary dewatering and silt fence not carried when the site has a high water table or is near a bayou.
- Fire-rated assembly substitutions where the bid uses a generic wall type instead of the tested UL design number.
- Gas piping and condensate drains missing from MEP scopes when the mechanical and plumbing packages are split.
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 Houston project
- Read the full setArchitectural, structural, civil and MEP drawings, the geotechnical report and every addendum.
- Check Houston 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 HoustonMaterial 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: Houston multifamily podium project
| Section | Line item | Qty | Unit |
|---|---|---|---|
| 03 30 00 | Slab on grade, 5 in. thick | 28,500 | SF |
| 03 30 00 | Drilled piers, 18 in. diameter | 142 | EA |
| 05 12 00 | Structural steel, podium framing | 68 | TON |
| 06 10 00 | Wood framing, studs and plates | 12,400 | LF |
| 07 21 00 | Batt insulation, exterior walls | 42,000 | SF |
| 09 30 00 | Tile flooring, wet areas | 3,200 | SF |
| 23 31 00 | Ductwork, galvanized, various sizes | 8,600 | LB |
| 26 05 19 | Conduit, EMT, 3/4 in. | 5,400 | LF |
Worked example: drilled pier foundation for a Houston multifamily building
This example uses illustrative dimensions for a three-story, wood-framed multifamily building on a drilled pier foundation, a common type in Houston. We are calculating concrete volume and rebar for the piers only. The geotechnical report is assumed to specify 18-inch diameter piers at 20 feet deep, spaced 8 feet on center along the perimeter and interior bearing lines. The building footprint is 120 feet by 60 feet. We will estimate the number of piers, concrete volume, and rebar tonnage.
| Step | Calculation | Result |
|---|---|---|
| Perimeter length | 2 × (120 + 60) | 360 LF |
| Interior bearing lines | 2 lines × 120 LF | 240 LF |
| Total pier line length | 360 + 240 | 600 LF |
| Pier count | 600 LF ÷ 8 ft spacing | 75 piers |
| Concrete volume per pier | π × (0.75 ft)² × 20 ft | 35.34 CF |
| Total concrete volume | 75 × 35.34 CF | 2,650.5 CF |
| Concrete volume in cubic yards | 2,650.5 ÷ 27 | 98.2 CY |
| Rebar per pier (assumed 1% steel ratio) | 35.34 CF × 0.01 × 490 lb/CF | 173.2 lb |
| Total rebar weight | 75 × 173.2 lb | 12,990 lb |
| Rebar in tons | 12,990 ÷ 2,000 | 6.5 tons |
These quantities are illustrative and must be adjusted for actual geotechnical recommendations, pier spacing, and depth. We add a typical waste factor of 5% for concrete and 3% for rebar, which would bring concrete to about 103 CY and rebar to about 6.7 tons. For a firm count, you need the structural drawings and the geotechnical report. Our foundation estimating services can produce a full takeoff with these adjustments. Always verify the pier depth and diameter with the engineer of record before ordering material.
FAQ
Houston construction estimating questions
What types of projects do you estimate in Houston?
We estimate all types, but our Houston work is heavy in multifamily, commercial tenant improvements, industrial, and single-family residential. We also handle sitework, concrete, framing, roofing, and MEP packages. Whether you are a general contractor bidding a podium project or a subcontractor pricing a concrete package, we can produce a division-by-division takeoff. Our commercial estimating services and multi-family estimating services are the most requested for this market.
How do you handle Houston's expansive clay soils in a takeoff?
We do not assume spread footings. We take off drilled piers or post-tensioned slabs as shown on the structural drawings, and we flag any note that says pier depths are to be determined. If the geotechnical report is available, we use its recommendations. If not, we price the shown depths and note the risk. For sitework, we include lime or cement stabilization where the plans call for it. Our foundation estimating services cover these details.
What about wind and hurricane requirements?
Houston is in a wind-borne debris region, which affects glazing, doors, and roof sheathing. We take off opening protection, impact-rated glass, and the required nailing patterns. We also check the wind speed and exposure category on the drawings. These requirements vary by edition of the adopted code, so always confirm with the local building department before you finalize your bid. Our roofing estimating services account for these wind-related details.
How do you price labor in Houston?
We use RSMeans data adjusted by ZIP code for material and labor. That means your takeoff reflects Houston-area wage rates and material costs, not a national average. We also account for local productivity factors, such as the effect of humidity on exterior work. If you have your own historical costs, we can incorporate them. This approach is used across all our Texas construction estimating services.
What is your turnaround time?
Most projects are returned in 24 to 48 hours. Rush service is available for an additional fee. The actual time depends on the size and complexity of the plans and how many trades you need. For a full multifamily takeoff, we may need a bit longer. We will give you a firm schedule when you send the documents. You can start by visiting our Get an estimate page.
What do you deliver?
You receive an Excel workbook and a PDF, organized by CSI MasterFormat division, with marked-up plan sets showing what we counted. The Excel file includes quantities, units, and notes. The PDF is suitable for printing or sharing. We can also provide a summary page for quick review. This format is standard for all our estimating services, including concrete estimating services and MEP estimating services.
Do you cover nearby cities?
Yes. We cover Dallas, San Antonio, Austin, and other Texas markets. Our Texas construction estimating services page has more detail. If your project is in a smaller town, ask us; we likely cover it. We also have dedicated pages for Dallas construction estimating, San Antonio construction estimating, and Austin construction estimating.
Where does your Houston permit data come from?
The permit figures we cite come from the U.S. Census Bureau's Building Permits Survey. That survey counts new privately-owned residential units only, so it does not include commercial or industrial permits. For 2025, the city issued 11,878 residential units, with 60% multifamily. You can use these numbers to gauge market activity, but they are not a substitute for a project-specific takeoff. For accurate quantities, you need a takeoff from plans.
Can you help with value engineering?
Yes. If your bid is over budget, we can suggest alternatives, such as different pier depths, alternative wall assemblies, or revised MEP layouts. We will quantify the savings and note any code implications. Value engineering is most effective early, before the design is finalized. Send us the plans and your target budget. Our foundation estimating services and framing estimating services often identify the largest savings.
How do I get started?
Send your plans and specifications through our Get an estimate page. Tell us which trades you need and your deadline. We will confirm receipt and give you a quote and schedule. There is no obligation, and we will sign a confidentiality agreement if you need one. For more information, see our Texas construction estimating services page.
Other Texas cities we cover
Popular services in Houston
Send your Houston project plans for a quote
Upload your drawings and we will return a division-by-division takeoff in 24–48 hours, with rush available.
- 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.