Jumbo · Construction-to-Perm
Jumbo Ground-Up Construction: Payoff, Tear-Down & Build Calculator
Model a jumbo ground-up build with an existing payoff. Estimate total project costs, maximum jumbo loan by LTV, full monthly payment, cash to close, and the income needed to qualify.
Built by Jim Blackburn · NMLS #1072866 · $500M+ closed · 7× Scotsman Guide Top Producer
Primary uses 80% LTV; second home and spec use 75%.
Existing loan / lot payoff.
Permits, architectural, engineering.
Labor and materials.
Permanent rate after construction. Interest-only period runs ~3% higher during the build.
Summary
Project Costs
Loan
Payment Breakdown
Cash to Close
Estimates only — not a commitment to lend.
By Jim Blackburn
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This calculator is for illustrative purposes only and does not constitute financial, legal, or investment advice. Results are based on general assumptions and may not reflect actual performance or eligibility. This is not a loan estimate or approval. Please consult with a licensed mortgage advisor before making financial decisions.