Home Build Feasibility Calculator | What Can I Afford to Build?
Find out what you can realistically afford to build—before you commit to a house plan.
The Buckeye Plans Home Build Feasibility Calculator is a downloadable construction-planning workbook designed to help homeowners and owner-builders turn a total budget into a realistic home-building plan.
Enter your project size, land cost, available cash, financing assumptions, site conditions and finish level. The calculator does the math and shows how those decisions affect your estimated construction cost, all-in project budget, financing needs and approximate buildable living area.
What this calculator helps you understand
- Estimated construction cost and all-in project cost
- Approximate maximum living area supported by your budget
- Budget surplus or shortfall
- Estimated construction cost per living square foot
- Cash needed and estimated financing requirement
- Estimated principal-and-interest payment
- Estimated taxes, insurance and total monthly housing cost
- How land, garage, porch, site and utility costs affect the house you can build
- Owner-builder versus GC-managed planning assumptions
- Economy, Standard, Upgraded and Luxury finish levels
Included tools
- Home Build Feasibility Dashboard — see the big picture at a glance
- What Can I Build? — reverse-calculate an approximate house size from your maximum budget
- Project Inputs — customize the workbook around your project
- Editable Cost Assumptions — replace planning assumptions with pricing from your local market
- Financing & Payment Planner — estimate financing and monthly housing costs
- Three Build Scenarios — compare Save Money, Target and Upgraded approaches
Who is it for?
Ideal for people planning a custom home, barndominium, owner-builder project, small home or other new residential construction who want to understand their budget before purchasing plans or requesting final contractor pricing.
Instant digital download
You are purchasing a downloadable Microsoft Excel workbook (.xlsx). No physical product is included and nothing will be shipped. The workbook is editable so you can replace the included assumptions with your own local estimates and quotes.
Important planning disclaimer
This calculator is an educational budgeting and planning tool. It is not a contractor bid, loan approval, appraisal, architectural or engineering opinion, or guarantee of construction cost or financing. Actual costs and loan terms vary based on location, site conditions, design, code requirements, materials, labor, contractor, lender, taxes, insurance and market conditions. Verify figures with qualified local contractors, suppliers, lenders and applicable professionals before making financial or construction decisions.
Ready for the next step?
Once you understand the size and budget that make sense for your project, Buckeye Plans can help with stock plans, plan modifications and custom home design.
Need changes to this plan?
Send us the plan name and tell us what you want different. We can review modifications or help you start a completely custom design.