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Two-Entrance Medical Office Building
For Sale
$2,249,000

1555 W Commonwealth Avenue, Fullerton, CA 92833

Commercial Sale, Fullerton, CA

Property Size3,824 SF
Price / SF$588.13
Days on Market238

Property Features for 1555 W Commonwealth Avenue

General Information

Property type Commercial Sale
Property subtype Office
Directions W Commonwealth Ave
Subdivision 83 - Fullerton
Standard status Active
APN 03111339

Utilities

Cooling system Central Air

Building Details

Year built 1937
Listing Agency: T.N.G. Real Estate Consultants
Listed By: Youngju Park · License #01974903
Added: Feb 18 Changed: Sep 29 Last Checked: Oct 14 at 6:06PM
MLS# PW26034001

Copyright © 2026 California Regional Multiple Listing Service, Inc. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

Single-story office/medical building with a permitted building area of 3,824 SF. The property is currently set up as a multi-room interior with a 2013 and 2023 permitted floor plan for an academy business. The main entrance opens to a large reception and lobby, three rooms, a kitchen, two bathrooms, and an additional conference area. A second, left-side entrance provides three rooms and two bathrooms, giving the building a practical separation of space.

Access is supported from multiple points, including handicap access at both entrances. There are two entrances to the parking lot, one from a back alley and one from Commonwealth Ave. The lot size is listed as over 20,000 SF, with room that could be reconfigured for additional parking. The property also notes convenient access to the 91 and 5 freeways.

With two entrances and multiple room groupings, the building can work for a doctor’s office, general office, academy use, or other business types that benefit from flexible space. The layout supports the possibility of operating two separate spaces, depending on tenant needs and interior configuration.

Key Highlights

  • Prime location with General Commercial zoning in Fullerton.
  • Permitted building space of 3,824 SF with a flexible floor plan.
  • Two separate entrances allowing for potential dual rental income.

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$63,404
Cap Rate
2.82%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,268,080 $1.3M
Cap Rate 7%
$905,771 $905.8K
Cap Rate 9%
$704,489 $704.5K
Market Conditions
NOI Build-Up for 3,824 SF
Gross rent
$101.0K $26.40/SF
− Vacancy
−$16.4K −$4.29/SF
EGI
$84.5K $22.11/SF
− OpEx
−$21.1K −$5.53/SF
NOI
$63.4K $16.58/SF
Area
Fullerton, CA
Vacancy
16.26%
Lease Rate
$26.40 /SF/Yr
Expense Ratio
25.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,268,080
Cap Rate 7%
$905,771
Cap Rate 9%
$704,489

Alternative Uses

Best Use
Office B
$905.8K
$792.6K – $1.06M (±1% cap)
NOI $63,404 @ 7.0% cap · market cap 2.82%
Second Best
—
—
no second resolved use
Theoretical Best
Office A
$1.23M
$1.08M – $1.43M (±1% cap)
NOI $86,076 @ 7.0% cap · market cap 3.83%
Zoning and permitted uses should be independently verified with authorities. How Realmo checks its estimates

Property Analytics

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Open Analytics

Current Use

Family Heart Preschool ... High School Joy Learning Center Training Center

Suggested Use

Top Pick Law Firm Real Estate Agency Parking Lot & Garage Locksmith Catering Service Computer & Electronic Repair

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

Yes
Highway access

Location Intelligence

Trade Area within ½ mile

804
Businesses Nearby

Demographics for 92833, CA

52,598
Population
17,042
Households
3.1
Avg Household Size
39
Median Age
43%
College-Educated
88%
High-School Grad
7.7 sq mi
ZIP Area
6,831
Density / Sq Mi
$113,296
Median Household Income
$51,502
Median Earnings
$2,155
Median Rent
$844,000
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Vacancy Rate% for Office in West region

11% 2019
14.1% 2020
15.5% 2021
17.2% 2022
19.9% 2023
21% 2024
20.8% 2025
Rey
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

Frequently Asked Questions

What type of property is this?
Office units - Single-story office with two handicap-accessible entrances and multi-room layout for medical, general, or academy use.
Where is this office units located?
The property is located at 1555 W Commonwealth Avenue Fullerton, CA.
What is the asking price?
The asking price for this property is $2,249,000.
What are key features of this property?
This property features: Prime location with General Commercial zoning in Fullerton.; Permitted building space of 3,824 SF with a flexible floor plan.; Two separate entrances allowing for potential dual rental income.
More about this property
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