$325,000
100 Mascoutah Avenue
Koerners Add, Belleville, Illinois, 62220
MLS® 26045642 · Listed by RE/MAX Preferred
About this property
A truly one-of-a-kind opportunity in the heart of Downtown Belleville! This remarkable mixed-use property seamlessly blends commercial functionality with an exceptionally well-preserved 1970s architectural masterpiece. Whether you're looking for a live/work environment, investment property, boutique office, creative studio, or a space with endless redevelopment potential, this building offers possibilities that are nearly impossible to duplicate. The main level features professional commercial office space with outstanding street presence, while the lower level provides abundant storage, a two-car garage, and a unique dumbwaiter designed to transport groceries and other items directly to the second-floor living quarters. Above it all is an extraordinary private residence that feels like stepping back into the golden age of modern design. The second floor offers 3 bedrooms, 2 bathrooms, dramatic open living spaces, an iconic floating staircase, a private spiral staircase, and countless original architectural details that have been beautifully preserved. Every room celebrates the bold design elements that made 1970s contemporary architecture so distinctive. One of the home's most captivating features is the expansive private courtyard and patio overlooking Downtown Belleville. Whether enjoying your morning coffee, entertaining guests, or taking in an evening concert from the city below, the panoramic views create an unforgettable setting unlike anything else in the area. From its timeless architecture and unique design features to its unmatched flexibility and downtown location, this is more than just a property -it's a landmark waiting for its next chapter. Properties of this caliber and character rarely become available. Schedule your private tour and experience this architectural gem for yourself. (58 spaces for public parking are located directly across Mascoutah Ave)
Room details
| Room | Level | Dimensions | Features |
|---|---|---|---|
| Office | Main | — | — |
| Bedroom | Second | — | — |
| Bedroom 2 | Second | — | — |
| Bedroom 3 | Second | — | — |
| Living Room | Upper | — | — |
| Kitchen | Second | — | — |
| Bathroom | Second | — | — |
| Bathroom 2 | Second | — | — |
| Bathroom | Lower | — | — |
Estimated value
$329,774
Estimated range: $319,730 – $339,818 · 3% confidence
Estimated value by month
This is an automated estimate based on MLS® market data — not an appraisal or a substitute for professional advice.
Curious what your own home is worth? Get a free estimate →Comparable recent sales
Sold records the MLS® data provider selected as comparable to this home — nearby recent sales at a similar price, bed count, and property type. Locations are shown at the neighborhood level only.
$330,000
Listed at $328,800
Fairwood East 1st Add, O'Fallon, Illinois
3 bd · 2 ba · 2320.00 sqft · Residential
$327,778
Listed at $318,800
Fairwood East 5th Add, O'Fallon, Illinois
3 bd · 2 ba · 2175.00 sqft · Residential
$325,000
Listed at $325,000
Glendale, Columbia, Illinois
3 bd · 3 ba · 2353.00 sqft · Residential
$335,000
Listed at $359,900
Wilson & Gardners Add, Columbia, Illinois
3 bd · 2 ba · 2264.00 sqft · Residential
$320,000
Listed at $320,000
Lou Del 4th Add, Waterloo, Illinois
3 bd · 2 ba · 2437.00 sqft · Residential
$335,000
Listed at $335,000
Glenwood Estates 1st Add, Glen Carbon, Illinois
3 bd · 3 ba · 2389.00 sqft · Residential
MLS® data for this listing last updated Jul 22, 2026.