6640 S Union Avenue
Chicago, Illinois 60621

Active / MLS #12590192 / Multiple Unit (2-4) / Englewood
Listing information updated 3/26/2026 at 7:23pm
Welcome to this beautifully renovated GREYSTONE 2-unit property offering incredible income potential and future upside. This oversized building features a massive duplex-down first unit with 5 bedrooms and 2 bathrooms, along with a spacious 4 bedroom, 1 bathroom second-floor unit-ideal for maximizing rental income. The property has been thoughtfully updated with modern finishes throughout, making it truly turnkey for an investor or house hacker looking to generate strong cash flow from day one. What sets this property apart is the significant value-add opportunity: the expansive lower level provides the potential to be converted into an additional unit, allowing a buyer to create a 3-unit building and substantially increase rental income. With the right vision, this property can easily produce $5,000+ per month in rental income. Perfect for: Investors seeking strong returns House hackers looking to cover their mortgage Buyers looking for a property with forced appreciation potential Conveniently located with access to public transportation, major roadways, and neighborhood amenities. Don't miss this rare opportunity to own a high-upside asset with immediate income and future scalability.

Listing Office: Blue Door Dave Inc

Listing Office Phone: 312.344.1487

Disclaimer: The data relating to real estate for sale on this website comes courtesy of Midwest Real Estate Data, LLC as distributed by MLS GRID. Real estate listings held by brokerage firms other than @properties are marked with the Broker Reciprocity thumbnail logo and detailed information about them includes the name of the listing brokers. Properties displayed may be listed or sold by various participants in the MLS. Based on information submitted to the MLS GRID as of 3/26/2026 at 7:23pm. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some listings have been excluded from this website.


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6640 S Union Avenue, Chicago, IL 60621 is a multiple unit (2-4) currently listed at $399,900. 6640 S Union Avenue features 9 Beds, 3 Baths. This multiple unit (2-4) has been listed on @properties Christie's International Real Estate since March 11th, 2026 and was built in 1900. The nearest transit stops include Halsted CTA Green line.