Key takeaways
- A rate needs a defined numerator and denominator.
- Source geography and period must match the comparison.
- A denominator note makes a market metric reviewable.
Source record
2 cited sources
Last verified
2026-08-10
In this article
Quick Overview
Vacancy, rent, and income metrics can look comparable while using different universes. A denominator review records what a rate is measured against before it enters an owner report or acquisition note.
Portfolio application
Use the market note comparability method to record numerator, denominator, geography, survey period, and unit. Link the market statistic to the property's operating record.
Common Mistakes
Do not divide a listing count by occupied units without explaining the measure. Do not compare rental and homeowner vacancy rates as though they share a denominator.
Method and limits
The Census Housing Vacancy Survey defines national vacancy measures and distinguishes them from other survey products.
Common Questions Answered
What is the fastest quality check?
Write one sentence naming numerator, denominator, geography, and period. If any part is missing, pause the comparison.
Can two official sources disagree?
Yes. Surveys can use different samples, definitions, periods, and estimation methods.
Ready to improve market reporting?
Use portfolio reporting support to retain metric definitions.