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Updated Duplex with ADU
New
For Sale
$250,000

509 E Heron, Denison, TX 75021

ResidentialIncome, Denison, TX

Property SizeContact for details
Lot Size0.24 Acres
Days on Market5

Property Features for 509 E Heron

General Information

Property type Residential Multi Family
Property subtype Other
Bedrooms 3
Bathrooms 2
Full bathrooms 2
Rooms Bathroom 2, Bathroom 1, Bedroom 3, Bedroom 2, Bedroom 1
Parking features Driveway
Interior features BuiltInFeatures, DecorativeDesignerLightingFixtures, HighSpeedInternet, CableTv
Exterior features PrivateYard
Fireplace 1
Appliances Dishwasher, ElectricCooktop, ElectricOven, ElectricRange, ElectricWaterHeater, Disposal, Microwave
Subdivision BELMONT
Lot features Back Yard, Lawn, Landscaped
Elementary school Lamar
Middle school Henry Scott
High school Denison
Elementary school district Denison ISD
Middle school district Denison ISD
High school district Denison ISD
Directions from hwy 75 go east on 503 follow 503 until you turn right on hwy 69 from hwy 69 turn left on S. Bells Dr. from S Bells Dr turn Right on E Monterey St From E Monterey St Turn left on E Heron St House will be on the left.
Standard status Active
APN 146756
Lot size 0.24 Acres

Taxes and HOA fees

Tax Description BELMONT, LOT 126 & 127
Legal Description BELMONT, LOT 126 & 127

Utilities

Sewer type Public Sewer
Heating system Electric (Heating), Central
Cooling system Ceiling Fan(s), Central Air, Electric
Water source Public

Building Details

Year built 1930
Floors in Building 2
Number of units 2
Flooring type Vinyl
Roof type Composition, Shingle
Listing Agency: OmniKey Realty, LLC.
Listed By: Bernard Bell · License #0718117
Added: Aug 25 Changed: Aug 26 Last Checked: Aug 29 at 7:06PM
MLS# 21369263

Copyright © 2026 North Texas Real Estate Information Systems, 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 duplex property at 509 E Heron in Denison includes two tenant-occupied residences and a 792-square-foot accessory dwelling unit. The primary home was built in 1930 and features vinyl flooring throughout, updated interior finishes, natural light, spacious living areas, updated bathrooms, and a kitchen with modern countertops, cabinetry, and appliances. The ADU provides a separate living area, one-bedroom loft, full bathroom, and full kitchen.

The property occupies 0.239 acres and includes a private backyard, driveway parking, public water, and public sewer. Additional features include central electric heating and cooling, ceiling fans, a composition shingle roof, a fireplace, high-speed internet, and cable TV access. The two occupied units have lease terms extending through June 2027 and 4-30-2027, respectively.

Key Highlights

  • Duplex with two tenant‑occupied residences
  • 792 sqft ADU with living area, 1 bedroom loft, full bath, and full kitchen
  • Primary home built in 1930 with updated interiors and vinyl flooring throughout

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Dental Office Electrical Service Real Estate Agency Nail Salon Skin Care Clinic Plumbing Service

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

Multi-tenant
Tenancy

Location Intelligence

Trade Area within ½ mile

191
Businesses Nearby

Demographics for 75021, TX

8,288
Population
3,871
Households
2.1
Avg Household Size
44
Median Age
17%
College-Educated
90%
High-School Grad
58.4 sq mi
ZIP Area
142
Density / Sq Mi
$67,159
Median Household Income
$36,955
Median Earnings
$900
Median Rent
$188,600
Median Home Value

Market

Vacancy Rate% for Multifamily in South region

8.5% 2022
10.2% 2023
11.4% 2024
11.3% 2025
Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Two tenant-occupied residences include an additional living space with a loft, kitchen, and full bathroom.
Where is this duplex located?
The property is located at 509 E Heron Denison, TX.
What is the asking price?
The asking price for this property is $250,000.
What are key features of this property?
This property features: Duplex with two tenant‑occupied residences; 792 sqft ADU with living area, 1 bedroom loft, full bath, and full kitchen; Primary home built in 1930 with updated interiors and vinyl flooring throughout
More about this property
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