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The Base Case Always Works. Your Job Is to Break It.

The Base Case Always Works. Your Job Is to Break It.

Rashdan·19 Oct 2026·2 min readCase Study

Every developer submits a perfect model. Every credit officer's job is to find where it fails — before the bank commits capital.

The Developer's Submission: 22% IRR. 1.3x DSCR. Looks Perfect.

Developers submit their best-case scenario — and it always looks clean. The numbers are internally consistent. The returns are attractive. The risk ratios appear conservative.

  • 22% IRR — compelling on paper
  • 1.3x DSCR — comfortably above the 1.2x covenant
  • 70% LTC — within standard underwriting limits

The Reality: In 30 Years, No Project Has Gone Exactly to Plan

The Base Case assumes perfect execution. Reality doesn't cooperate. These are the three stressors that break deals — and they happen more often than developers admit:

  • Hard costs +10% — material and labor overruns are routine, not exceptional; contingency buffers get consumed fast
  • Rates +150 bps — a mid-construction rate hike reshapes debt service obligations and compresses margins
  • Sales delayed 3 months — absorption slows, carrying costs accumulate, and cashflow timing breaks the model

One Click. Instant Downside Shock.

FeasiBuild doesn't require manual scenario modeling. With a single click, the platform shocks the developer's Base Case against a predefined downside scenario — and recalculates every metric instantly. Import base. Apply shock. No spreadsheet manipulation. No manual recalculation. The model breaks itself — in seconds, not hours.

The Result: DSCR Drops to 0.9x. The Loan Is Underwater.

Under the downside scenario, DSCR falls below the 1.2x covenant floor — triggering a technical default before construction even completes.

  • Debt service obligations exceed available cashflow
  • Equity cushion is insufficient to absorb cost overruns
  • The deal requires restructuring — or should not be funded
A Base Case DSCR of 1.3x provides only 0.1x buffer above covenant. This is not a margin of safety — it's a margin of error.

Your Data Never Leaves Your Infrastructure

BYO-infrastructure — zero-knowledge security. FeasiBuild is built for institutions that cannot compromise on data sovereignty. Sensitive financial models and deal data reside exclusively in your private cloud — never on our servers.

  • Zero-knowledge architecture — we process calculations without ever accessing your raw financial data
  • Bank-grade compliance — designed to meet institutional security and regulatory requirements
  • Private cloud deployment — deploy on your infrastructure; full data ownership, always

Break your own model before a credit officer breaks it for you — first scenario free on the Explorer tier. feasibuild.app

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