General contractor cost to build a house is often 10%-20% of construction cost, or roughly $40,000-$100,000 on a $500,000 build. The final fee depends on the home’s size and complexity, local labor rates, and whether the contractor charges a fixed fee, percentage, or cost-plus markup.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| GC fee on a $400,000 build | $40,000 | $60,000 | $80,000 | 10%-20% of construction cost |
| GC fee per finished sq ft | $20 | $30 | $50 | Based on $200-$250 per sq ft build cost |
| House construction cost | $300,000 | $500,000 | $800,000+ | Excludes land in most cases |
What a General Contractor Charges on a 2,000-Square-Foot House
For a conventional 2,000-square-foot home, construction may run about $300,000-$600,000 before land, landscaping, and some utility work. At a 10%-20% GC fee, the contractor’s compensation is approximately $30,000-$120,000; a middle estimate is $60,000 on a $400,000 project at 15%.
That fee may cover scheduling, subcontractor coordination, inspections, purchasing, and site supervision. Some estimates show the fee as a separate line, while others fold it into a fixed project price. Confirm whether the quoted total includes the GC’s fee, general conditions, and contingency.
Assumptions: Standard finishes, typical site access, and construction costs excluding land; regional rates and scope can change totals.
How Labor, Materials, and Overhead Shape the Builder Fee
A contractor’s fee is not the same as the total construction budget. Direct trade labor and materials usually make up most of the build; the GC charge pays for management and business costs, while project-specific expenses such as dumpsters or temporary utilities may appear separately.
| Quote component | Typical amount | How it is charged | What to check |
|---|---|---|---|
| GC fee | $30,000-$120,000 | 10%-20% of eligible costs | Which costs count in the percentage |
| Trade labor | $70-$150 per hour | Hourly, bid, or included | Subcontractor labor and supervision |
| Materials | $100-$200 per sq ft | Allowance or actual invoice | Quality, quantities, and markup |
| Equipment and site costs | $5,000-$25,000 | Rental or project allowance | Crane, temporary power, and waste |
| Permits and inspections | $1,000-$5,000 | Local fees, sometimes paid by owner | Plan review and required inspections |
Cost-plus contracts may add a 10%-20% markup to eligible costs, while fixed-price proposals package work into an agreed total. Compare the same scope and fee basis, not just the bottom-line bid.
Which House Specs and Site Conditions Raise the GC Fee?
Square footage affects both total project cost and the fee when the contractor uses a percentage. A 3,000-square-foot home generally costs more to manage than a 1,500-square-foot plan, but compact homes can still have higher per-square-foot pricing because kitchens, bathrooms, and mechanical systems remain costly.
Complexity also matters. A roof pitch above 8:12, multiple rooflines, custom window packages, or high-end finishes can require more coordination and specialized trades. Steep or rocky lots, retaining walls, and utility runs longer than 100 feet may add separate site-work costs and increase oversight time.
Regional labor prices, building codes, and material availability also affect the fee base. Ask whether the percentage applies to change orders, allowances, permit fees, and owner-selected upgrades.
Three New-Home Quotes Show How GC Fees Add Up
These examples illustrate common fee math, not guaranteed local bids. The construction totals exclude land and may exclude major site improvements.
| House scenario | Build basis | GC rate | Estimated GC fee |
|---|---|---|---|
| Basic 1,500-sq-ft ranch | $300,000 at $200 per sq ft | 12% | $36,000 |
| Standard 2,000-sq-ft home | $440,000 at $220 per sq ft | 15% | $66,000 |
| Custom 2,500-sq-ft home | $700,000 at $280 per sq ft | 18% | $126,000 |
The custom example uses a higher construction rate and management percentage because specialty finishes and added coordination can expand both the project budget and contractor workload. Request a written breakdown of the fee and the costs used to calculate it.
How Construction Schedule and Crew Rates Affect the Quote
A typical new house may take 8-14 months from site work through completion, though weather, inspections, and material lead times can extend the schedule. Longer projects may increase supervision, temporary facility, and insurance expenses, especially if the contract bills general conditions by the month.
Trade labor commonly prices by the job rather than by a homeowner-facing hourly rate. When extra work is billed hourly, a project manager or lead carpenter may cost about $75-$125 per hour, while specialty trade labor can range from $70-$150 per hour. Check the hourly rates and approval process for work outside the contract.
Where Owners Can Trim a House-Building GC Budget
Keep the floor plan, finish schedule, and structural specifications settled before signing. Late changes can trigger redesign, restocking fees, and added labor; a clear allowance for cabinets, flooring, and lighting makes upgrades easier to track against the budget.
Compare at least three detailed proposals using the same plans and material grades. Ask whether each bid includes cleanup, delivery, project management, insurance, and warranty service, and whether subcontractor or material markups are additional. A low fee may not mean a low total if more costs are excluded.
Use a contingency of roughly 5%-10% for unforeseen conditions, and avoid paying for optional upgrades before the core scope is priced. The most reliable savings come from reducing scope and change orders, not choosing a contractor on fee percentage alone.