Portfolio Vacancy Rate Calculator

Portfolio vacancy weights by size. This calculator computes the weighted rate.

Total units (or SF)

Vacant units (or SF)

Properties

Portfolio vacancy rate

7.00%

Occupancy rate

93.00%

Avg vacant per property

10.5

How the math works

Rate = vacant ÷ total. Simple portfolio-weighted metric.

Segment by asset class, vintage, and submarket. A 7% overall rate may hide Class B 3% + Class A 12%. Segmentation tells you where to focus leasing resources.

How to Use

Enter total units or SF.
Enter vacant units or SF.
Enter number of properties.
Read portfolio vacancy rate.

Frequently Asked Questions

SF or unit?

Units for multifamily/residential; SF for commercial. Unit-weighted may hide large-space vacancies (e.g., 1 giant anchor vacancy across 20 small tenants). Report both when mixed-use.

Benchmark?

Portfolio 5% below market-typical = well-leased portfolio. 5% above market = problem. Trending up over 3-6 months signals broader market or asset-specific issue.

Concentration risk?

Single asset above 20% vacancy can represent 50%+ of portfolio's lost income. Measure single-asset contribution to portfolio vacancy to find leverage points.

How does this interact with the rest of the capital stack?

Each tier of the stack affects the next. Senior debt constrains LTC and DSCR. Mezz and pref consume equity spread. Interest rate hedges protect DSCR but cost premium. Always model the full stack holistically — optimizing one tier alone often degrades another. Institutional underwriters run three or four scenarios across the stack before committing capital.