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$659,900

  • For Sale
  • Active
  • Single Family
  • 4 Beds
  • 3 Full Baths
  • 2,488 Sq. Ft.
  • 0.3214 Acres
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Welcome to this exceptional 2,488 sq ft two-story coastal home on a corner lot built for comfort, safety, and entertaining. The upper level features three bedrooms, two baths, and a full kitchen with granite countertops, custom cabinetry, gas cooktop, built-in microwave and oven. The dine in kitchen w/island is open to the bright spacious living area. Step onto a patio equipped with ceiling fans to relax and view your heated pool and private paradise. The upper and lower patios both have propane gas supply outlets for your heaters and are also equipped with a rail/cable and curtain assembly to block out the cold winter winds for year-round enjoyment and or to protect your tropical plants. 40 newer double-pane, storm-rated windows come with hurricane rated screens which provide superior protection, and home security. The upper sliding glass door is protected by a metal roll-down hurricane storm door. You can access the upper floor via elevator and or stairs. The lower level offers its own private entrance, a full kitchen, laundry, bath, and a large bedroom. It can be used as an Airbnb suite or as guest quarters while entertaining friends and family. Two separate A/C systems, instant propane water heaters, and a 500-gallon underground propane tank ensure year-round comfort. Additional highlights include a backup propane generator, Windstorm-rated metal roof, Hardi Plank siding over cypress with 2 inch overlap, and 10x10 structural piers for superior stability. There is also a 30 amp RV Hookup with city approved easement use and septic connection. Enjoy resort-style living with an in-ground heated pool, tiki hut with gas grill, bar, ice maker, outdoor shower, firepit, she shed, and a 30x28 steel workshop with three roll-up doors. Fully fenced yard with gated entry, public water/sewer plus private well for irrigation and pool. This rare, exceptionally built home offers durability, flexibility, and endless entertainment possibilities-don't miss this coastal gem!

Full Property Details for 509 Monroe Ave

General

  • Price: $659,900
  • Status: Active
  • Type: Single Family
  • Source: Central_Texas_MLS
  • MLS ID: 595890
  • Updated: 2/19/2026
  • Added to Site: 135 day(s) ago

Interior

  • Interior Features: Breakfast Bar, Bookcases, Built-in Features, Ceiling Fan(s), Elevator, High Ceilings, Recessed Lighting, Shower Only, Separate Shower, Tub Shower, Upper Level Primary, Vanity, Vaulted Ceiling(s), Wired for Sound, Breakfast Area, Custom Cabinets, Eat-in Kitchen, Granite Counters, Instant Hot Water, Kitchen Island, Kitchen/Dining Combo
  • Fireplace(s): None
  • Appliances: Dishwasher, Gas Cooktop, Disposal, Gas Range, Oven, Propane Water Heater, Range Hood, Tankless Water Heater, Vented Exhaust Fan, Washer, Some Gas Appliances, Built-In Oven, Microwave, Range, Water Softener Owned
  • Flooring: Laminate

Rooms

Bathrooms

  • Total Bathrooms: 3
  • Full Bathrooms: 3

Bedrooms

  • Total Bedrooms: 4

Other Rooms

  • Laundry: Gas Dryer Hookup, Inside, Lower Level, Laundry Room

Additional Information

  • Pool: Yes
  • Private Pool: Yes
  • Pool Description: Gunite, Electric Heat, Heated, In Ground, Private
  • Security/Safety: Smoke Detector(s)

Exterior

  • Exterior Features: Balcony, Deck, Elevator, Fire Pit, Outdoor Grill, Outdoor Shower, Propane Tank - Owned
  • Porch/Patio/Deck: Balcony, Deck

Parking

  • Carports: Yes
  • Carport Spaces: 3
  • Parking Features: Attached Carport, Carport, Oversized, RV Access/Parking

Location

  • County: Calhoun
  • Subdivision: Port Oconnor
  • Driving Directions: From Port Lavaca, Hwy 35 to Virginia, turn onto Virginia heading east, turn Right on Austin st, which becomes hwy 238, turn R on Hwy 238 at flashing light for 1 mile, turn L onto 1289 and continue south for 11 miles. At the stop sign turn L onto TX 185 for 7.7 miles, turn Left onto 5th street go .2 miles to Monroe and turn Left, House will be on the next corner on the left across from the school.

School Information

  • Elem School District: Calhoun County ISD
  • Midd School District: Calhoun County ISD
  • High School District: Calhoun County ISD

Heating & Cooling

  • Central air: Yes
  • Air Conditioning: Yes
  • Cooling Type: Central Air, Electric, Item2Units
  • Heating Type: Central, Electric, Propane, Multiple Heating Units

Utilities

  • Sewer: Public Sewer
  • Water: Private, Public, Well
  • Well: Yes
  • Utility Description: Electricity Available, Propane, Trash Collection Public, Water Available

Structural Information

  • Architectural Style: Split Level
  • Construction: HardiPlank Type
  • Roof: Metal
  • Windows: Double Pane Windows, Storm Window(s)
  • Stories/Levels: 2
  • Square Feet: 2,488
  • Sq. Ft. Source: Appraiser
  • Living Area: 2,488 Sq. Ft.
  • Year Built: 1986
  • Year Built Source: Assessor
  • Property Condition: Resale
  • Other Struct. Feat.: Elevator(s)

Additional Structures

  • Other Structures: Cabana, Workshop

Lot Features

  • Lot Size (Acres): 0.3214
  • Fencing (Description): Back Yard, Chain Link, Full, Gate, Picket, Privacy

Green Features

  • Energy Efficient: Solar Screens

Financial Considerations

  • Terms: Cash, Conventional, FHA, VA Loan

Disclosures and Reports

  • Legal Description: PORT OCONNOR, BLOCK 124, LOT 7, 8
  • Property ID: 30904
  • Block: 124
  • Lot Number: 7

Listed by The Ron Brown Company

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Listing agent

— 509 Monroe Ave —

  • The Ron Brown Company

713-480-4019

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 509 Monroe Ave

School District:Calhoun County Independent School District
NameGradesDistance
Port O Connor Elementary School
508 Monroe Street, Port O'Connor, TX 77982
PK-50.1 mi
Travis Middle School, Port Lavaca, TX
705 North Nueces Street, Port Lavaca, TX 77979
6-817.9 mi
Calhoun High School
201 Sandcrab Boulevard, Port Lavaca, TX 77979
9-1218.4 mi
Disclaimer: School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 509 Monroe Ave Get Price Alerts and Save Property

Date
Details
Price
Change
Source
1/17/2026
Price Reduced
$659,900
-13.16%
MLS
10/21/2025
Listed
$759,900
—
MLS
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 509 Monroe Ave

Year
Property Taxes
Change
Tax Assessment
Change
2025
$2,894
-23%
$487,140
2%
2022
$3,740
—
$477,300
17%
2022
$3,740
—
$409,020
26%
2022
$3,740
-11%
$324,690
2%
2021
$4,191
—
$318,200
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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Listed by The Ron Brown Company

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509 Monroe Avenue, Port O'Connor, TX 77982 (MLS# 595890) is a Single Family property with 4 bedrooms and 3 full bathrooms. 509 Monroe Avenue is currently listed for $659,900 and was received on October 21, 2025. Want to learn more about 509 Monroe Avenue? Do you have questions about finding other Single Family real estate for sale in Port O'Connor? You can browse all Port O'Connor real estate or contact a Coldwell Banker agent to request more information.

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