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Glossary Term

Vacancy Factor

Vacancy Factor explained for Westside apartment owners reviewing value, sale planning, buyer underwriting, or diligence.

By Don Favia · Updated July 3, 2026

Direct Answer

Vacancy factor is an underwriting allowance for lost rent from vacancy or collection risk. It can affect NOI and value.

Why It Matters

Vacancy Factor matters because buyers do not price Westside apartment buildings from headlines alone. They review income, expenses, jurisdiction, condition, debt, documentation, and the risks that could appear during diligence.

Owner Takeaway

Use the concept as a screening lens, not a final answer. The building-specific conclusion should come from the rent roll, actual expenses, property condition, local rules, recent sales, and current buyer demand.