504 MARSH Avenue, Alton, IL 62002

Building Details

Year built

2001

Number of units

2

Building materials

Vinyl Siding

Architectural style

Other

Listing agent Matt Horn License #2023007773 Show Phone

Listing office Landmark Realty l***@yahoo.com 3049 Godfrey Road, Godfrey, IL Show Phone

Listing date Jun 16, 2026

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MLS# 26038290 Listing URL

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Overview

This for-sale duplex consists of two 2-bedroom units. The property was built in 2001 and is described as being in very good condition. The updates called out include new roof shingles, a new water heater, and newer HVAC. The listing is presented as turn-key and includes long-time tenants.

The duplex is located at 504 Marsh Avenue in Alton, Illinois 62002 (Madison County). The listing specifically references the property addresses 504 and 506 Marsh.

For investors or buyers looking for a residential income property, this duplex offers a straightforward two-unit configuration with both units identified as 2-bedroom layouts. With long-time tenants already in place and the improvements noted by the seller, the asset may appeal to buyers seeking an easy-to-operate income property rather than one requiring immediate major mechanical or roof work. Buyers should still perform their own due diligence on current systems and financials, but the provided details support a practical, maintainable baseline condition.

Suggested Use

Real Estate Agency Law Firm Restaurant Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Gym & Fitness Center Daycare Center

Zoning and permitted uses should be independently verified with local authorities.

Location Insight

• Map
• Local Demand

City

Alton

County

Madison

State

Illinois

Longitude

-90.145399

Latitude

38.890762

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FAQs

What type of property is this?

Duplex - Turnkey 2-unit duplex built in 2001, featuring recent roof, water heater, and HVAC updates plus long-time tenants.

Where is this duplex located?

The property is located at 504 MARSH Avenue Alton, IL.

What is the asking price?

The asking price for this property is $129,000.

What are key features of this property?

This property features: 2001‑built 2‑unit, 2‑bedroom duplex investment property; Newer HVAC plus new water heater and roof with new shingles; Forced air natural gas heating with central air cooling (plus electric cooling)