Waterfront Mixed-Use
418 W Highway 100, Port Isabel, TX 78578
For Sale
$9,000,000
Commercial Sale, Port Isabel, TX
Property Size25,257 SF
Lot Size4.47 Acres
Price / SF$356.34
Days on Market234
Property Features for 418 W Highway 100
General Information
Property type
Property subtype
Zoning
Subdivision
Elementary school district
Middle school district
High school district
Standard status
Size
Lot size
Taxes and HOA fees
Tax Year
Tax Annual Amount
Amenities
boat slips
restaurant/bar
bait shop
boat fuel station
fishing pier
RV/boat storage
Building Details
Year built
Number of units
Listing Agency:
SPI Realty
(956) 761-6444
Listed By:
Ramiro Aguirre · License #0645466
(956) 908-5171
Added: Mar 21
Changed: Oct 20
Last Checked: Nov 9 at 5:06AM
MLS# 106029
Copyright © 2026 South Padre Island Board of Realtors. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
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Investment Insights
Based on property information with market context.
This 25,257-square-foot mixed-use property combines 24 hotel rooms with 13 occupied apartments. Marina and boating amenities include 28 boat slips, a fishing pier, a boat fuel station, and RV and boat storage. The property also has a restaurant and bar and a bait shop. Built in 1968, it sits on 4.47 acres and is zoned Comm.
Located at 418 W Highway 100 in Port Isabel, the property includes additional land used for RV and boat storage.
Located at 418 W Highway 100 in Port Isabel, the property includes additional land used for RV and boat storage.
Key Highlights
- 24 hotel rooms and 13 occupied apartments
- 28 boat slips, a fishing pier, and a boat fuel station
- Restaurant and bar, bait shop, and RV and boat storage
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$255,727
Cap Rate
2.84%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$5,114,540
$5.1M
Cap Rate 7%
$3,653,243
$3.7M
Cap Rate 9%
$2,841,411
$2.8M
Market Conditions
NOI Build-Up for 25,257 SF
Gross rent
$454.6K $18.00/SF
− Vacancy
−$45.5K −$1.80/SF
EGI
$409.2K $16.20/SF
− OpEx
−$153.4K −$6.07/SF
NOI
$255.7K $10.13/SF
Area
Cameron County, TX
Vacancy
10.00%
Lease Rate
$18.00 /SF/Yr
Expense Ratio
37.50%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$5,114,540
Cap Rate 7%
$3,653,243
Cap Rate 9%
$2,841,411
Alternative Uses
Best Use
Mixed Use
$3.65M
$3.20M – $4.26M
NOI $255,727 @ 7.0% cap · market cap 2.84%
Second Best
Hotel Hospitality
$2.78M
$2.43M – $3.24M
NOI $194,353 @ 7.0% cap · market cap 2.16%
Theoretical Best
Healthcare Medical
$4.35M
$3.81M – $5.07M
NOI $304,418 @ 7.0% cap · market cap 3.38%
Zoning and permitted uses should be independently verified with authorities.
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Current Use
Lease Details
13
Residential units
Location Intelligence
Trade Area within ½ mile
628
Businesses Nearby
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Business Placement
Demographics for 78578, TX
10,076
Population
6,391
Households
1.6
Avg Household Size
45
Median Age
24%
College-Educated
83%
High-School Grad
57.0 sq mi
ZIP Area
177
Density / Sq Mi
$52,041
Median Household Income
$36,896
Median Earnings
$763
Median Rent
$193,700
Median Home Value
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Market
Properties on Market for Mixed-use properties in Cameron County
Vacancy Rate% for Multifamily in South region
Frequently Asked Questions
What type of property is this?
Mixed-use property - Hospitality, residential, marina, dining, and boating services share a single commercial property.
Where is this mixed-use property located?
The property is located at 418 W Highway 100 Port Isabel, TX.
What is the asking price?
The asking price for this property is $9,000,000.
What are key features of this property?
This property features: 24 hotel rooms and 13 occupied apartments; 28 boat slips, a fishing pier, and a boat fuel station; Restaurant and bar, bait shop, and RV and boat storage
