Two-Entrance Medical Office
1555 W Commonwealth Avenue Fullerton, CA 92833
For Sale
$2,249,000
SINGLE_FAMILY - Fullerton, CA
Property Size3,824 SF
Price / SF$588.13
Days on Market161
Property Features for 1555 W Commonwealth Avenue
General Information
Property type
Residential
Property subtype
Office
Standard status
Active
APN
03111339
Utilities
Cooling system
Central Air
Building Details
Year built
1937
Listing Agency:
T.N.G. Real Estate Consultants
(714) 987-3310
Listed By:
Youngju Park · License #01974903
(714) 576-9922
Added: Feb 18
Changed: Jul 6
Last Checked: Jul 29 at 6:06AM
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.
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 For Office B
Simulate Cap Rate and NOI
NOI Build-Up
- Vacancy
- income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
- EGI (Effective Gross Income)
- gross rent minus vacancy losses — the realistic income before paying operating costs.
- OpEx (Operating Expenses)
- recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
- NOI (Net Operating Income)
- income a property generates after operating costs but before financing and taxes.
| Component | $ | $/SF |
|---|---|---|
| Gross rent | $101.0k | $26.40 |
| − Vacancy | −$16.4k | −$4.29 |
| EGI | $84.5k | $22.11 |
| − OpEx | −$21.1k | −$5.53 |
| NOI | $63.4k | $16.58 |
3,824 SF · lease $26.40/SF/yr · vacancy 16.26% · expense 25.00%
Alternative Uses
Best Use
Office B
$905.8K
$792.6K – $1.06M
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
NOI $86,076 @ 7.0% cap · market cap 3.83%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Location Intelligence
Current Use
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.
