509 Monroe Ave

Port O'Connor, TX 77982

$659,900
Price
4
Beds
2,488 Sq. Ft.
$265 / Sq. Ft.
2,488
Sq. Ft.
$265
per Sq. Ft.
a balcony with table and chairs
a front view of a house with swimming pool and outdoor seating
a view of a house with swimming pool and sitting area
Cement edged garden beds
an aerial view of a house with a yard and plants
a view of a house with a yard
a patio with table and chairs
a bathroom with a granite countertop sink and a shower
a view of a building with a yard
The lovely oasis you've always needed
a building exterior with furniture and garden
a view of backyard with cabin
a bedroom with a bed and a dresser
Primary bedroom upstairs
Primary bedroom upstairs
Primary bedroom upstairs
a bathroom with a toilet sink and mirror
Primary shower
a view of bathroom with dual sinks
Bedroom 2 upstairs
a bedroom with a bed and wooden floor
Bedroom 2 upstairs
a bed sitting in a bedroom next to a window
Bedroom 3 upstairs
Bedroom 3 upstairs
a kitchen with granite countertop cabinets stainless steel appliances and a sink
Kitchen 2 Stainless Gas cooktop & Stainless deep single compartment sink
a kitchen with a sink a stove and cabinets
a kitchen with stainless steel appliances granite countertop a refrigerator a stove and a sink
a living room with furniture ceiling fan and a flat screen tv
a living room with furniture and a flat screen tv
a bathroom with a granite countertop sink a mirror and shower
a bathroom with a granite countertop sink and a mirror
a dining hall with stainless steel appliances a dining table and chairs with wooden floor
Kitchen downstairs
Kitchen downstairs
a bedroom with furniture and a large window
Bedroom 1st floor
a living room with furniture a bookshelf and a large window
a view of walk in closet with wooden floor
a en suite bathroom with sink and mirror
Bath downstairs w/ shower
a bathroom with a sink and a mirror
a bathroom with a sink a mirror and a bathtub
a picture of floor plan

Description

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...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!
  1. Listed by Gilbert Soltermack • TREC #0718273 • The Ron Brown Company • 713-480-4019

Property Details for 509 Monroe Avenue

Subdivision Name
Port Oconnor
Architectural Style
SplitLevel
Waterfront
No
View
None
State Or Province
TX
LISTING UPDATED: 02/19/2026 12:23 AM

Property Details for 509 Monroe Avenue

StatusActive
MLS #595890
Days on Market105
Taxes-
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential / Single Family Residence
Year Built1986
Lot Size0.32 AC / 14,000 SF
CountyCalhoun County

Location

Listing Courtesy of The Ron Brown Company, Gilbert Soltermack, TREC #0718273
Add your commute

Building Information for 509 Monroe Avenue

Stories2Year Built1986Building Size-Lot Size0.32 AC / 14,000 SF

Payment Calculator

$3,216 per month

30 year fixed, 6.15% Interest

Principal and Interest

$3,216

Property Taxes

$0

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

Property Information for 509 Monroe Avenue

Summary
Location and General Information
  • Building Features: Elevators
  • Community Features: None
  • 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.
  • Elementary School District: Calhoun County ISD
  • Lake Name: None
  • Middle Or Junior School District: Calhoun County ISD
  • High School District: Calhoun County ISD
  • Road Surface Type: Asphalt
  • Major Change Type: PriceChange
Parking
  • Carport: Yes
  • Carport Spaces: 3
  • Garage: No
  • Garage Spaces: 0
  • Parking Features: AttachedCarport, Carport, Oversized, RvAccessParking
Taxes and HOA Information
  • Association: No
Property
Green Features
  • Green Energy Efficient: SolarScreens
Lot Information
  • Lot Features: CornerLot, CityLot, SprinklersAutomatic, Item14Acre
  • Parcel Number: 30904
  • Living Area Source: Appraiser
Property and Assessments
  • Construction Materials: HardiplankType
  • Human Modified: No
  • Property Condition: Resale
  • Security Features: SmokeDetectors
  • Spa: No
  • Stories: 2
  • Year Built Source: Assessor
Utilities
  • Cooling: CentralAir, Electric, Item2Units
  • Cooling: Yes
  • Heating: Central, Electric, Propane, MultipleHeatingUnits
  • Heating: Yes
  • Mineral Rights: None
  • Sewer: PublicSewer
  • Utilities: ElectricityAvailable, Propane, TrashCollectionPublic, WaterAvailable
  • Water Access: No
  • Water Source: Private, Public, Well
Interior and Exterior Features
Exterior Features
  • Exterior Features: Balcony, Deck, Elevator, FirePit, OutdoorGrill, OutdoorShower, PropaneTankOwned
  • Fencing: BackYard, ChainLink, Full, Gate, Picket, Privacy
  • Foundation Details: Slab
  • Patio And Porch Features: Balcony, Deck
  • Pool Private: Yes
  • Pool Features: Gunite, ElectricHeat, Heated, InGround, Private
  • Roof: Metal
  • View: No
  • Water Body Name: None
  • Window Features: DoublePaneWindows, StormWindows
Interior Features
  • Appliances: Dishwasher, GasCooktop, Disposal, GasRange, Oven, PropaneWaterHeater, RangeHood, TanklessWaterHeater, VentedExhaustFan, Washer, SomeGasAppliances, BuiltInOven, Microwave, Range, WaterSoftenerOwned
  • Fireplace Features: None
  • Fireplace: No
  • Flooring: Laminate
  • Interior Features: BreakfastBar, Bookcases, BuiltInFeatures, CeilingFans, Elevator, HighCeilings, RecessedLighting, ShowerOnly, SeparateShower, TubShower, UpperLevelPrimary, Vanity, VaultedCeilings, WiredForSound, BreakfastArea, CustomCabinets, EatInKitchen, GraniteCounters, InstantHotWater, KitchenIsland, KitchenDiningCombo
  • Laundry Features: GasDryerHookup, Inside, LowerLevel, LaundryRoom
  • Levels: Two, MultiSplit
  • GuestHouseYN: No
  • Rooms Total: 0

Property History for 509 Monroe Avenue

DateEvent & SourcePriceAppreciation
Feb 15, 2026

Price Change

HARMLS #6844747

$659,900—
Dec 15, 2025

Listed (Active)

HARMLS #6844747

$759,900—
Dec 4, 2025

Listed (Active)

CTXMLS #595890

$659,900—
Nov 13, 2025

Temporarily Off Market

CTXMLS #595890

$759,900—
Oct 21, 2025

Listed (Active)

CTXMLS #595890

$759,900—
DateEvent & SourcePrice
02/15/2026

Price Change

HARMLS #6844747

$659,900
12/15/2025

Listed (Active)

HARMLS #6844747

$759,900
12/04/2025

Listed (Active)

CTXMLS #595890

$659,900
11/13/2025

Temporarily Off Market

CTXMLS #595890

$759,900
10/21/2025

Listed (Active)

CTXMLS #595890

$759,900

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Schools near 509 Monroe Avenue

This home is within Calhoun County Independent School District.
Rating
School
Type
Grades
Distance
Port O Connor Elementary School
Public - PK to 6
Travis Middle School
Public - 6 to 8
Calhoun High School
Public - 9 to 12
Hope High School
Public - 9 to 12
Rating
School
Distance
Port O Connor Elementary School
PublicPK to 6

Travis Middle School
Public6 to 8

Calhoun High School
Public9 to 12

Hope High School
Public9 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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More information about 509 Monroe Avenue, Port O'Connor, TX 77982

509 Monroe Avenue is a single family home for sale in Port O'Connor, TX 77982. This property was listed for sale on October 21, 2025 by The Ron Brown Company, it's currently listed at $659,900. This listing's school district is Calhoun County Independent School District. Nearby schools include Port O Connor Elementary School, Travis Middle School and Calhoun High School. 509 Monroe Avenue is a 4-bed, 3-bath, 2,488 sqft single family home built in 1986.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of The Ron Brown Company, Gilbert Soltermack, TREC #0718273

Based on information from the Austin Board of REALTORS® (alternatively, from ACTRIS), Central Hill Country Board of Realtors, Central Texas MLS, Highland Lakes Association of Realtors, Bryan-College Station Association of REALTORS, and Waco Association of REALTORS. All information provided is deemed reliable but is not guaranteed and should be independently verified. The Austin Board of REALTORS®, ACTRIS, Central Hill Country Board of Realtors, Central Texas MLS, Highland Lakes Association of Realtors, Bryan-College Station Association of REALTORS, Waco Association of REALTORS, and their affiliates provide the MLS and all content therein “AS IS” and without any warranty, express or implied. IDX information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and that the data is deemed reliable but is not guaranteed accurate by the MLS. Copyright© 2026 Austin Board of REALTORS® (alternatively, from ACTRIS), Central Hill Country Board of Realtors, Central Texas MLS, Highland Lakes Association of Realtors, Bryan-College Station Association of REALTORS, and Waco Association of REALTORS. All rights reserved. We do not attempt to independently verify the currency, completeness, accuracy or authenticity of the data contained herein. All area measurements and calculations are approximate and should be independently verified. Data may be subject to transcription and transmission errors. Accordingly, the data is provided on an “as is” “as available” basis only and may not reflect all real estate activity in the market”. © [2026] REsides, Inc. All rights reserved. Certain information contained herein is derived from information, which is the licensed property of, and copyrighted by, REsides, Inc.