Search
Waterfront Duplex with Boat Slips
For Sale
$595,000

921 Bass Ave, Port Isabel, TX 78578

Two-unit property with separate kitchens, private water access, and flexible living spaces.

Property Size1,922 SF
Price / SF$309.57
Days on Market168

Property Features for 921 Bass Ave

General Information

Standard status Active
Size 1,922 SF
Property subtype Residential Income

Units

Unit Mix 1 x 1BR/1BA, 1 x 2BR/2BA + bonus room with half bath
Multifamily Units 2

Taxes and HOA fees

Annual Taxes $11,867

Amenities

private boat slips
boat lift
covered channel-front patio
expansive channel-front deck

Building Details

Buildings 1
Listing Agency: Patrick McNulty, Broker
Listed By: Glenda George · License #0653002
Source: Exprealty
Added: Mar 16 Changed: Aug 30 Last Checked: Aug 30 at 7:01AM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Patrick McNulty, Broker

Investment Insights

Based on property information with market context.

Located at 921 Bass Ave in Port Isabel, this 1,922-square-foot duplex combines waterfront living with a practical two-unit layout. The lower residence includes one bedroom, one bathroom, a full kitchen, one-car garage, furnished interiors, and a covered patio reached through two sliding glass doors. The upper residence provides two bedrooms with private en-suite bathrooms, a bonus room with half bath, a full kitchen, and a large channel-facing deck. It is offered without furnishings.

Water access is supported by two private slips: one covered slip equipped with a boat lift and one open slip. The sale also includes a boat, kayaks, stand-up paddle boards, and a grill, providing an established collection of waterfront recreation equipment. The property offers separate living areas and outdoor spaces within a single duplex configuration.

Key Highlights

  • 1,922‑square‑foot waterfront duplex at 921 Bass Ave, Port Isabel, TX
  • Two private boat slips, including one covered slip with boat lift
  • Lower unit: 1 bedroom, 1 bathroom, full kitchen, one‑car garage, and furnished interiors

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Parking Lot & Garage HVAC Service Plumbing Service Locksmith (Bike/Boat/Book/etc) Store Garden Center

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

2
Residential units

Location Intelligence

Trade Area within ½ mile

608
Businesses Nearby

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

Market

Vacancy Rate% for Multifamily in South region

8.5% 2022
10.2% 2023
11.4% 2024
11.3% 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?
Duplex - Two-unit property with separate kitchens, private water access, and flexible living spaces.
Where is this duplex located?
The property is located at 921 Bass Ave Port Isabel, TX.
What is the asking price?
The asking price for this property is $595,000.
What are key features of this property?
This property features: 1,922‑square‑foot waterfront duplex at 921 Bass Ave, Port Isabel, TX; Two private boat slips, including one covered slip with boat lift; Lower unit: 1 bedroom, 1 bathroom, full kitchen, one‑car garage, and furnished interiors
More about this property
Thanks! Your message was sent.
Error! Your message wasn't sent.
Please enter your name
Please enter email
Please enter the email in the correct format
Please enter phone
Please enter the number in the correct format
Please enter message