Unique Multi-Unit Property in the Heart of Mascoutah!
Welcome to 509 N Jefferson St—an exceptional opportunity to own not just one, but two living spaces on a single property! The main home features 3 bedrooms, 1 full bathroom, and approximately 1,100 sq. ft. of charming living space. Inside, you’ll find a spacious living room, a dedicated dining area, and a functional kitchen ready for your personal touch.
In the backyard, discover the bonus suite—a detached studio-style unit complete with its own kitchen and full bathroom. With approximately 400 sq. ft., this space is perfect for guests, extended family, a home office, or even rental income potential.
Featuring a great location, this versatile property offers flexibility, convenience, and the charm of small-town living—all in one package. Whether you're looking to invest, live with extended family, or simply want extra space, this unique setup is a rare find.
Active
$272,900
509 N Jefferson St, Mascoutah, IL 62258
2beds
1,500sqft
Est.:
Single Family Residence
Built in 1949
7,405.2 Square Feet Lot
$270,700 Zestimate®
$182/sqft
$-- HOA
What's special
Detached studio-style unitFunctional kitchenDedicated dining areaBonus suite
- 11 days
- on Zillow |
- 741 |
- 41 |
Zillow last checked: 7 hours ago
Listing updated: April 15, 2025 at 12:08pm
Listing Provided by:
Linda R Frierdich 618-281-7621,
Century 21 Advantage
Source: MARIS,MLS#: 25023442
Originating MLS: Southwestern Illinois Board of REALTORS

Travel times
Tour with a buyer’s agent
Tour with a buyer’s agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 2
- Bathrooms: 2
- Full bathrooms: 2
- Main level bathrooms: 2
- Main level bedrooms: 2
Bedroom
- Features: Floor Covering: Wood
- Level: Main
- Area: 144
- Dimensions: 12x12
Bedroom
- Features: Floor Covering: Wood
- Level: Main
- Area: 120
- Dimensions: 12x10
Bathroom
- Level: Main
Bathroom
- Level: Main
- Area: 77
- Dimensions: 7x11
Dining room
- Features: Floor Covering: Wood
- Level: Main
- Area: 130
- Dimensions: 13x10
Family room
- Features: Floor Covering: Wood
- Level: Main
- Area: 225
- Dimensions: 15x15
Kitchen
- Features: Floor Covering: Vinyl
- Level: Main
- Area: 70
- Dimensions: 10x7
Kitchen
- Level: Main
- Area: 49
- Dimensions: 7x7
Living room
- Level: Main
- Area: 209
- Dimensions: 11x19
Heating
- Forced Air, Gas
Cooling
- Electric
Features
- Flooring: Wood
- Basement: Concrete,Unfinished
- Has fireplace: No
- Fireplace features: None
Interior area
- Total structure area: 1,500
- Total interior livable area: 1,500 sqft
- Finished area above ground: 1,500
- Finished area below ground: 0
Property
Parking
- Total spaces: 1
- Parking features: Off Street
- Carport spaces: 1
Features
- Levels: One
- Fencing: Wood
Lot
- Size: 7,405.2 Square Feet
- Dimensions: 49 x 145 x 50 x 145
- Features: Sidewalks, Streetlights
Details
- Additional structures: Other
- Parcel number: 1032.0101019
- Special conditions: No Exemptions,Standard
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Traditional,Ranch
- Property subtype: Single Family Residence
Condition
- Year built: 1949
Utilities & green energy
- Sewer: Public Sewer
Community & HOA
Community
- Subdivision: Jefferson Place
Location
- Region: Mascoutah
Financial & listing details
- Price per square foot: $182/sqft
- Tax assessed value: $42,887
- Annual tax amount: $3,330
- Date on market: 4/15/2025
- Ownership: Private
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