Underwriting

Underwriting is the discipline of checking a pro forma. A developer presents projections; the lender or equity investor rebuilds them independently, questioning each rent, expense, cost, and timeline. The underwriter asks what happens if rents come in lower, construction costs higher, interest rates up, or lease-up slower, and decides whether the project still covers its obligations under those stresses.

The output is a set of terms. For a lender, that means the loan amount, sized by the most restrictive of loan-to-cost, loan-to-value, and debt service coverage; the interest rate and fees; the required guaranties; and the reserves and conditions attached. For an investor, it means the return required and the structure of the partnership. If the numbers do not clear the underwriter's thresholds, the project is resized, re-priced, or declined.

Underwriting standards move with the economic cycle. In easy conditions, lenders accept optimistic rents and thin coverage; after losses, they tighten. Tighter underwriting means smaller loans on the same building, more equity required, and therefore a higher rent needed for a project to proceed, even if nothing about construction cost or interest rates has changed.

For a reader trying to understand why a building costs what it does, underwriting is where the answer is decided. Every assumption on this site is, in effect, an underwriting assumption, and we try to show the reader what changes when each one moves.