Commercial Building with Leased
For Sale
$799,900
604 S 77 SUNSHINE STRIP, Harlingen, TX 78550
COMMERCIAL - HARLINGEN, TX
Property Size5,658 SF
Lot Size0.28 Acres
Price / SF$141.38
Days on Market48
Property Features for 604 S 77 SUNSHINE STRIP
General Information
Property type
Commercial Sale
Property subtype
Other
Subdivision
WINDSOR PLACE
Standard status
Active
Lot size
0.28 Acres
Building Details
Year built
1984
Floors in Building
1
Listing Agency:
KELLER WILLIAMS LRGV · Keller Williams Realty
(956) 423-8877
Listed By:
AUDREY KRUPALA
(956) 245-8310
Added: Jun 16
Changed: Jul 22
Last Checked: Aug 2 at 2:06AM
MLS# 29777234
Copyright © 2026 Rio Grande Valley 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.
This commercial building offers 5,658 square feet and features five fully leased suites, providing an immediately income-producing configuration. The property is described as well maintained, reflecting pride of ownership throughout.
Located at 604 S 77 Sunshine Strip in Harlingen, the building is positioned along a well-traveled thoroughfare with visibility and accessibility. Public remarks note surrounding established businesses, retail centers, restaurants, and professional services.
Owner financing is available, offering an additional option for qualified buyers evaluating a commercial investment with an already leased suite mix.
Located at 604 S 77 Sunshine Strip in Harlingen, the building is positioned along a well-traveled thoroughfare with visibility and accessibility. Public remarks note surrounding established businesses, retail centers, restaurants, and professional services.
Owner financing is available, offering an additional option for qualified buyers evaluating a commercial investment with an already leased suite mix.
Key Highlights
- 1984‑built 5,658 SF commercial building in Harlingen
- Five fully leased suites with a diversified tenant mix
- Immediate income from multiple occupied suites
Financial Insights For Flex RnD
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 | $75.4k | $13.32 |
| − Vacancy | −$904 | −$0.16 |
| EGI | $74.5k | $13.16 |
| − OpEx | −$26.1k | −$4.61 |
| NOI | $48.4k | $8.55 |
5,658 SF · lease $13.32/SF/yr · vacancy 1.20% · expense 35.00%
Alternative Uses
Best Use
Flex RnD
$691.4K
$605.0K – $806.7K
NOI $48,399 @ 7.0% cap · market cap 6.05%
Second Best
Warehouse
$459.2K
$401.8K – $535.7K
NOI $32,143 @ 7.0% cap · market cap 4.02%
Theoretical Best
Healthcare Medical
$974.2K
$852.4K – $1.14M
NOI $68,195 @ 7.0% cap · market cap 8.53%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
100%
Occupancy
Multi-tenant
Tenancy
Location Intelligence
Trade Area within ½ mile
1,023
Businesses Nearby
Under-served
Demand for This Use
Explore this area
Business Placement
Demographics for 78550, TX
56,038
Population
22,347
Households
2.5
Avg Household Size
35
Median Age
22%
College-Educated
77%
High-School Grad
94.2 sq mi
ZIP Area
595
Density / Sq Mi
$51,524
Median Household Income
$32,065
Median Earnings
$863
Median Rent
$120,500
Median Home Value
Market
Vacancy Rate% for Industrial in South region
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Frequently Asked Questions
What type of property is this?
Flex space - Commercial building with five fully leased suites, totaling 5,658 square feet, with owner financing available.
Where is this flex space located?
The property is located at 604 S 77 SUNSHINE STRIP Harlingen, TX.
What is the asking price?
The asking price for this property is $799,900.
What are key features of this property?
This property features: 1984‑built 5,658 SF commercial building in Harlingen; Five fully leased suites with a diversified tenant mix; Immediate income from multiple occupied suites
