Madison County, IL Quadplexes for sale

Updated: Jun 29

Four-Unit Quadplex with Detached Garages

2321 Washington Ave, Granite City, IL 62040

$140,000

1,737 sqft

Four separate rental units currently configured within the property
Main residence includes 2 bedrooms, 2 bathrooms, and a full basement
Upper unit offers 1 bedroom, 1 bathroom, kitchen, breakfast nook, and living area
Detached two‑story garage includes a one‑car garage and 2 efficiency‑style units
Total property size of 1,737 square feet

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2321 Washington Ave, Granite City, IL

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Est. Cap Rate

9.1%
Above avg (5.9%)
Est. NOI

$13K
Annual
Price @ 7% Cap

$183K
Above asking
Property Type

Single Family Residence
Built 1918

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Updated: Jun 15

Mixed-Use Building with Four Apartments

119 W 3rd Street, Alton, IL 62002

$699,000

0.06 AC lot

Main level restaurant and bar plus a fenced outdoor patio
Four apartments upstairs: two two‑bedroom and two one‑bedroom units
Salon space and restaurant/retail area on the main level with an outside patio
Expansive storage area included
0.0559‑acre lot with brick and wood siding construction

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Four-Unit Quadplex Apartment Building

1238 Brown Street, Alton, IL 62002

$165,000

2,442 sqft 0.18 AC lot

Well-maintained quadplex with four 1-bedroom units and one currently vacant apartment for immediate leasing or owner-occupancy.

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Four-Unit Quadplex with Central Air

723 Alby Street, Alton, IL 62002

$59,900

1,709 sqft 0.17 AC lot

Four efficiency apartments feature forced-air heating, central air, and public water service.

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Bungalow Quadplex with Detached Garage

2321 Washington Avenue, Granite City, IL 62040

$140,000

1,737 sqft 0.11 AC lot

Four-unit bungalow configured for rental income, featuring a detached two-story garage building with additional efficiency units.

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Four-Unit Residential Income Property

2013 Grand Avenue, Granite City, IL 62040

$57,000

3,925 sqft 0.14 AC lot

Four 2-bedroom, 1-bath units are offered for sale as-is at 2013 Grand Avenue.

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4-Unit Quadplex with 1-Bed Units

612 Mechanic Street, Alton, IL 62002

$139,000

1,594 sqft 0.17 AC lot

4-unit quadplex on a 0.1653-acre lot, built in 1901, with forced-air heating and window cooling.

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Historic 4-Unit Quadplex

617 State Street, Alton, IL 62002

$495,000

Furnished accommodations feature individual kitchens, included appliances, and a private lower-level suite with courtyard access.

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4-Unit Brick Quadplex with Basement

2230 E 24th Street, Granite City, IL 62040

$66,000

0.24 AC lot

4-unit brick quadplex built in 1910 with forced-air heating, window A/C, and a full basement with storage.

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Four-Unit Efficiency Quadplex

723 Alby Street, Alton, IL 62002

$59,900

The property contains efficiency-style residential units in a multi-unit configuration.

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Four-Unit Residential Income Property

1222 9th St., Highland, IL 62249

Contact for pricing

Residential income property offering four units for sale.

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Madison County, IL Quadplexes Market Trends and Statistics

Explore 11 quadplexes for sale in Madison County, IL, showcased through 11 active listings on our real estate platform. These investment opportunities span a total of 13,144 square feet of properties for sale, with an estimated market value of $2,020,800.

Sale prices for four-unit buildings in Madison County, IL start at $57,000, averaging $202,080, and reaching up to $699,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.