Free Tool — Orange County

What is your apartment building worth?

Get an instant estimate based on the income approach — the same methodology professional brokers use to value multifamily properties in OC.

Estimates are based on current OC market cap rates and are for informational purposes only. For a precise valuation, request a free Broker Price Opinion below.

Your property details
Enter your building's financials to get an estimated market value range based on current OC cap rates.
Total rent from all units combined per month
Property taxes, insurance, maintenance, management, utilities. Exclude mortgage payments. Typical range: 30–40% of gross rent.
Your estimate will appear here
Enter your property details on the left and click Calculate to get an instant valuation range based on current OC market cap rates.
How it works

The income approach — how brokers value apartment buildings.

Step 01

Calculate Net Operating Income

NOI = Annual gross rent × (1 - vacancy rate) minus annual operating expenses. This is the income your building generates after costs, before debt service.

Step 02

Apply the market cap rate

Cap rate is the return a buyer expects. In North OC, cap rates range from 4.5% to 5.8% depending on city, age, and asset quality. Divide your NOI by the cap rate to get value.

Step 03

Cross-check with price per unit

A second valuation method: multiply your unit count by the current median price per unit for your submarket. Both methods should produce similar results — divergence signals upside or risk.

This tool uses current OC market cap rates sourced from CoStar transaction data (Q1 2026). Estimates are for informational purposes only and do not constitute a formal appraisal or broker price opinion. Contact Patricio Brook for a full written valuation at no charge.

Want the real number?

A free Broker Price Opinion gives you a precise valuation with current comps, cap rate analysis, and a recommended list price. Takes 48 hours, no obligation.

Schedule a Free Valuation Call →