One document chooses the use; the other tests the project. Confusing them produces analysis that answers a question nobody asked.
A highest and best use study runs the Appraisal Institute’s four-test sequence — legally permissible, physically possible, financially feasible, maximally productive — across candidate uses for a property, concluding which program creates the most value. It is the right instrument when the use itself is the open question: surplus land, a corridor parcel with multiple plausible programs, an underperforming asset whose owner suspects the site outgrew the building. The output is a ranked comparison with land-residual evidence: what each use leaves for the dirt after development cost.
A feasibility study takes the use as given and tests the project: this sponsor, this budget, this financing, this operator, this ramp — against program coverage standards under base and stressed cases. The HBU’s “financially feasible” test asks only whether a use clears a positive-return bar in general; the feasibility study asks whether the actual deal in front of the committee services its actual debt.
Land-rich files often need the sequence: HBU first to settle the program, feasibility second to underwrite it. Recent Wert-Berater practice shows the pattern — a Chino corridor HBU concluding a branded express car wash with ground-lease pad as maximally productive (development cost of $9,300,000 against an indicated stabilized value of approximately $19,375,000), and a Pasadena corridor engagement ranking four scenarios to a $45,018,730 concluded program at a 12.2 percent levered IRR — each producing exactly the use decision a subsequent feasibility study would then test.
The selection rule is one question: is the use decided? If no, HBU. If yes, feasibility. If the appraisal’s HBU section is being asked to carry either job alone, the file is borrowing analysis it never commissioned.
President, Wert-Berater, Inc. — independent feasibility study consultants since 1998. More than 4,000 feasibility studies completed across all 50 states and internationally, evaluating $40.2 billion in project value for SBA, USDA, EB-5, conventional, and institutional financing decisions. Fiduciary duty runs to the lender and agency in every engagement.
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