After-Repair Value (ARV)

Single Input Valuation Metrics

Number of Units

The number of rentable units in the property.

Example Result

Sample Data

1.00

Based on a sample $385,000 property with $2,850/month rent, 20% down, 7% interest rate.

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40-Year Projection Chart

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Number of Units Formula

User Input

User Input

1.00

Where to Find This Value

Here's where you can find the value for Number of Units:

Property Listing

The MLS listing or property marketing materials specify the number of units

County Records

County records show the number of legal dwelling units

Inspection Report

A property inspection confirms the actual unit count and configuration

Calculations That Use Number of Units

Per Unit Operating Cost

Expense Metrics

Insurance Cost Per Unit

Expense Metrics

Tax Cost Per Unit

Expense Metrics

Valuation Metrics

All-In Cost Per Unit

Platform Distribution

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Why It Matters

Unit count determines which per-unit metrics are meaningful and what financing options are available. Properties with 1–4 units qualify for conventional residential mortgages with lower down payments and better rates. Moving to 5+ units requires commercial financing with different underwriting criteria.

Detailed Explanation

Number of Units is the count of separate rentable units in the property. A single-family home has 1 unit; a duplex has 2; a fourplex has 4. This drives per-unit metrics like Price Per Unit, Revenue Per Unit, and Operating Cost Per Unit. Per-unit analysis is the standard method for comparing multi-family properties of different sizes. Residential financing (1–4 units) has different terms than commercial (5+ units).

Example

Sample Result

1

Based on a sample $385,000 property with $2,850/month rent, 20% down, 7% interest rate.

Related Calculations

Price Per Unit

Purchase price divided by number of units.

$385,000 Example

Price Per Square Foot

Purchase price divided by total square footage.

$256.67 Example

Value Based on Cap Rate

Property value estimated by dividing NOI by the cap rate.

$396,550 Example

Value Based on GRM

Property value estimated using the gross rent multiplier.

$396,550 Example

Cost Approach Value

Estimated value based on land value plus depreciated replacement cost.

$214,250 Example

Equity Position Current

Current property value minus outstanding loan balance.

$91,679 Example

Run This Calculation on Your Property

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