How much does it cost to build a 1800 sq ft house?

    Estimate the total cost of building a house from the ground up. Three construction types, three finish levels, regional price adjustments and a materials-vs-labor split.

    Building a 1800 sq ft house in the US costs between $120 and $350 per square foot depending on construction type, finish level and region. A traditional stick-built home at mid-range finishes runs about $200/sq ft in the Midwest - but add 15% in the Northeast or subtract 5% in the Southeast. Prefab construction saves 20-30% on labor and finishes 40% faster. Enter your construction type, finish level and region below to get a detailed estimate for a 1800 square foot home.

    Parameters

    Enter data for calculations

    Livable floor area in square feet (500-10,000).

    Building method affects cost and timeline.

    Interior finish quality.

    Regional cost adjustment.

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    What does it cost to build a house from scratch?

    Pick your floor area, construction method, finish level and region. The calculator returns a total estimate, cost per square foot, materials-vs-labor split, build timeline and a comparison table across all nine type-and-finish combinations. One example: a 2,000 sq ft traditional stick-built home with mid-range finishes in the Midwest costs roughly $400,000 at $200/sq ft.

    How to use - step by step

    1. Floor area - livable square footage. Average US home is 2,200 sq ft. Do not count garage or unfinished basement.
    2. Construction type - traditional (stick-built on site), prefab (factory modules), or timber frame (heavy timber skeleton).
    3. Finish level - basic (builder-grade), mid-range (granite, hardwood), or premium (custom, smart home).
    4. Region - adjusts for local labor and material costs. Northeast and West Coast are most expensive.
    5. Read results - total cost, cost/sq ft, materials vs labor, build time, and a 9-cell comparison matrix.

    Cost per square foot by construction type

    Construction type Basic ($/sq ft) Mid-range ($/sq ft) Premium ($/sq ft)
    Traditional (stick-built)$150$200$300
    Prefab / modular$120$170$250
    Timber frame$180$240$350

    Midwest baseline. Add 15% for Northeast, 12% for West Coast, subtract 5% for Southeast.

    Regional price multipliers

    Labor rates and material delivery costs vary significantly across the US. A house that costs $300,000 in the Southeast could run $345,000 in the Northeast - same plan, same materials, 15% more just from regional pricing.

    Region Multiplier Key cost drivers
    Northeast+15%High union labor rates, strict codes, short building season
    West Coast+12%Seismic requirements, high land costs, permitting delays
    Mid-Atlantic+8%Above-average labor, moderate codes
    Southwest+5%Growing demand, water infrastructure costs
    Midwest (baseline)0%Average labor, good material access, moderate codes
    Mountain West-3%Lower labor, but delivery costs for remote sites
    Southeast-5%Lower labor rates, year-round building, less regulation

    Scenarios - six builds compared

    Scenario 1: 1,500 sq ft prefab, basic finish, Southeast
    Total: $171,000 ($114/sq ft) - build time: 5 months
    Scenario 2: 2,000 sq ft traditional, mid-range, Midwest
    Total: $400,000 ($200/sq ft) - build time: 12 months
    Scenario 3: 2,500 sq ft traditional, mid-range, Northeast
    Total: $575,000 ($230/sq ft) - build time: 15 months
    Scenario 4: 3,000 sq ft timber frame, premium, West Coast
    Total: $1,176,000 ($392/sq ft) - build time: 23 months
    Scenario 5: 1,800 sq ft prefab, mid-range, Mountain West
    Total: $296,820 ($165/sq ft) - build time: 6 months
    Scenario 6: 2,200 sq ft traditional, basic, Southeast
    Total: $313,500 ($143/sq ft) - build time: 13 months

    What is included - and what is not

    Included in estimate

    • Foundation and framing
    • Roofing and exterior
    • Plumbing, electrical, HVAC
    • Interior finish (floors, walls, paint)
    • Kitchen and bathrooms
    • Windows and doors
    • Insulation

    Not included

    • Land purchase
    • Permits and impact fees ($5k-$20k)
    • Utility hookups ($3k-$15k)
    • Driveway and landscaping ($5k-$30k)
    • Interior furnishing
    • Architect/design fees (8-15% of build)
    • Contingency (typically 10-15%)

    These excluded items typically add 15-35% on top of the build cost. A $400,000 build often becomes a $500,000-$540,000 total project once you add land, permits, utilities and landscaping.

    FAQ - Frequently asked questions

    Is building cheaper than buying an existing home?
    It depends on the market. In areas with high existing-home prices (West Coast, Northeast), building can be 10-20% cheaper. In areas with affordable housing stock (Midwest, Southeast), buying is often cheaper because you skip permits, site prep and the 8-14 month wait. Building gives you exactly what you want - buying gives you speed.
    What is not included in cost per square foot?
    Land purchase, permits and impact fees ($5,000-$20,000), utility hookups ($3,000-$15,000), driveway and landscaping ($5,000-$30,000), and interior furnishing. These can add 15-30% to the build cost depending on location.
    How long does it take to build a house?
    Traditional stick-built: 10-14 months. Prefab/modular: 4-7 months (factory + assembly). Timber frame: 12-18 months. Weather, permit delays and supply chain issues can add 2-4 months. Prefab is fastest because most work happens indoors at the factory.
    Why is prefab cheaper?
    Factory assembly reduces labor hours by 30-40%, minimizes material waste (bulk purchasing), and eliminates weather delays. The trade-off: less design flexibility and potential delivery logistics costs for remote sites. Quality is comparable - modern prefab meets the same building codes.
    What is the 55/45 materials-to-labor split?
    On average, 55% of a home's build cost goes to materials (lumber, concrete, roofing, windows, fixtures) and 45% to labor (framing, plumbing, electrical, finishing). This ratio shifts: in high-labor markets (Northeast) labor can reach 50%. In DIY builds, labor drops to 10-15%.
    How much does a 2,000 sq ft house cost to build?
    At Midwest baseline: traditional basic $300,000, traditional mid-range $400,000, prefab basic $240,000, timber premium $700,000. Add 15% for Northeast. The range is enormous - from $228,000 (prefab basic Southeast) to $784,000 (timber premium Northeast).
    Should I add a contingency budget?
    Yes. Industry standard is 10-15% of the build cost. On a $400,000 project, set aside $40,000-$60,000 for unexpected costs: soil issues, material price changes, design modifications mid-build, code compliance surprises. First-time builders should lean toward 15%.

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    Reviewed by: Krystian Szyszka