Project Cost Estimator
Know the real budget before you break ground
Construction budgets fail when they only account for materials and labor. This estimator builds in the contingency buffer every contractor recommends — because the unexpected always happens. Enter your square footage, local cost rate, and buffer percentage to get a realistic project budget in seconds.
The three variables that drive your estimate
Every construction budget comes down to these inputs. The tool gives you all three on sliders.
Area (sq ft)
The total square footage of your project — the single biggest cost driver. Commercial construction runs $100-300/sq ft; residential $80-200/sq ft depending on finishes.
Cost per sq ft
The blended rate covering materials, labor, and basic finishes. This varies wildly by location — $150/sq ft in the Midwest might be $300+/sq ft in coastal cities.
Contingency buffer
The 10-20% you add on top for the unexpected. Structural surprises, material price spikes, permit delays — the contingency is not optional, it's insurance.
Costs most estimates forget
Even with a contingency buffer, these four categories routinely surprise first-time builders.
~2-5%
Permit & regulatory fees
Building permits, zoning reviews, environmental assessments. Often overlooked in initial budgets but required before breaking ground.
~3-8%
Site preparation
Excavation, grading, utility connections, temporary fencing. Raw land isn't build-ready — site prep can exceed $30K on a standard lot.
~15-25%
Finishes & fixtures
Flooring, cabinetry, lighting, plumbing fixtures. This is where budgets blow up. A kitchen alone can range from $15K to $80K+.
~5-15%
Professional fees
Architect, structural engineer, project manager. These are not included in the per-sq-ft construction rate and must be budgeted separately.
Project Scope
Base Cost
Additional Cost
Total Project Cost
Quick Estimate
Based on current market averages
This estimator provides a high-level budget based on standard area metrics. Actual costs may vary by 15-20% depending on local material prices and labor availability.
Contingency Planning
Why add 10-20%?
- Unforeseen structural requirements
- Material price fluctuations
- Permit and regulatory fees
Base
Extra
Total
Quick Estimate
High-level budget based on area metrics. Actual costs may vary 15-20%.
Why add buffer?
Structural surprises, material spikes, and permit fees require 10-20% contingency.
Professional estimators typically recommend a 15-20% contingency on new construction and 20-30% on renovation projects. Renovations always uncover more problems than new builds. Add your contingency before sharing the estimate with contractors.
Get a realistic number in under 30 seconds
Enter square footage, local rate, and contingency. Walk away with a budget that accounts for the unexpected.