Quick answer
Per-door revenue means income measured per rental unit. If a fourplex collects $6,000 per month across four units, its monthly per-door revenue is $1,500.
Owners use this metric to compare units, properties, and portfolios more clearly.
How per-door revenue is calculated
Divide total rental income by the number of rental units. This can be calculated monthly, annually, or for a specific property.
For example, $72,000 in annual rent across four units equals $18,000 per door per year.
Why it matters
Per-door revenue helps owners compare rental income across properties with different unit counts. It can also show whether one unit is underpriced compared with the rest of the property.
It is especially useful for duplexes, triplexes, fourplexes, and small portfolios.
Per-door revenue vs per-door profit
Revenue is income before expenses. Profit or cash flow depends on expenses, repairs, vacancy, management fees, insurance, taxes, and debt service.
A property can have strong per-door revenue and still perform poorly if expenses are high.
What owners should watch
Owners should compare per-door revenue with market rent, vacancy, unit condition, repair costs, and tenant retention.
The metric is helpful, but it should not be reviewed by itself.
Related resources
- Multi-Family and Small Portfolio Ownership category
- What is rent roll?
- What is rental property cash flow?
- What is vacancy rate?
- Multi-family property management
Frequently asked questions
What does "door" mean in rental property?
A door usually means one rental unit.
Is per-door revenue the same as cash flow?
No. Per-door revenue is income before expenses. Cash flow is what remains after income and expenses.
Can per-door revenue reveal underpriced units?
Yes. It can show when one unit's rent is meaningfully below similar units.
Is per-door revenue only for apartments?
No. It can be used for duplexes, triplexes, fourplexes, and small portfolios.