O'Neil Property Group

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$350,000
26 Days On Site

1240 N Mason Avenue
Chicago, IL 60651

For Sale|Single Family Residence|Active
5
Beds
3
Total Baths
3
Full Baths
2,422
SqFt
$145
/SqFt
1916
Built
County:
Cook
Listing Courtesy of MRED as distributed by MLS Grid of Redfin Corporation
1240 N Mason Avenue1240 N Mason Avenue1240 N Mason Avenue1240 N Mason Avenue
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Welcome to 1240 N Mason Ave. This home offers 5 bedrooms, 2 additional den/office rooms, and 3 full bathrooms across 2,422 square feet on a 3,968-square-foot lot. Hardwood floors run throughout the first and second floors, and the primary bedroom has a large closet. The basement has ceramic tile flooring and additional living space. Laundry areas are located on the first floor and in the basement, with one basement dryer included in the sale. The backyard includes a custom-built greenhouse and firepit. The south gutters were replaced in 2024. Heating is provided by a gas forced-air furnace; there is no central air conditioning. The basement refrigerator and stove, the first-floor washer and dryer, and one of the two basement washer and dryer sets are excluded from the sale. Sold as-is.

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Listing Snapshot
PriceΒ 
$350,000
Days On SiteΒ 
26 Days
BedroomsΒ 
5
Inside Area (SqFt)Β 
2,422 sqft
Total BathsΒ 
3
Full BathsΒ 
3
Partial BathsΒ 
N/A
Lot SizeΒ 
0.0911 Acres
Year BuiltΒ 
1916
MLS NumberΒ 
12784004
StatusΒ 
Active
Property TaxΒ 
$5,544
HOA/Condo/Coop FeesΒ 
N/A
Sq Ft SourceΒ 
Estimated
Friends & Family
Recent Activity
yesterdayListing updated with changes from the MLS
5 days agoStatus changed to Active
4 weeks agoListing first seen on site
General Features
AcresΒ 
0.0911
GarageΒ 
Yes
Garage SpacesΒ 
1
ParkingΒ 
OtherDetachedGarage
Parking SpacesΒ 
1
Property Sub TypeΒ 
Single Family Residence
SewerΒ 
Public Sewer
StyleΒ 
Bungalow
Interior Features
AppliancesΒ 
RangeMicrowaveDishwasherRefrigerator
BasementΒ 
FinishedExterior EntryPartial
ElectricΒ 
100 Amp Service
FlooringΒ 
Hardwood
HeatingΒ 
Forced Air
InteriorΒ 
In-Law Floorplan
Bedroom 2Β 
Dimensions - 12X11Level - Main
Bedroom 3Β 
Dimensions - 12X11Level - Main
Bedroom 4Β 
Dimensions - 20X9Level - Second
Bedroom 5Β 
Dimensions - 9X7Level - Second
DenΒ 
Dimensions - 14X17Level - Basement
Dining RoomΒ 
Dimensions - 14X12Level - Main
Family RoomΒ 
Dimensions - 17X11Level - Basement
Family Room - DownΒ 
Dimensions - 12X18Level - Second
KitchenΒ 
Dimensions - 17X14Level - MainDescription - Eating Area-Breakfast Bar,Eating Area-Table Space,Island,Pantry-Walk-in
Kitchen- 2ndΒ 
Dimensions - 15X12Level - Second
LaundryΒ 
Dimensions - 9X7Level - Basement
Living RoomΒ 
Dimensions - 23X12Level - Main
Master BedroomΒ 
Dimensions - 17X12Level - Second
OfficeΒ 
Dimensions - 10X17Level - Basement
Sun RoomΒ 
Dimensions - 25X8Level - Main
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Exterior Features
Construction DetailsΒ 
Vinyl Siding
Patio And PorchΒ 
DeckPorchScreened
RoofΒ 
Asphalt
Community Features
Accessibility FeaturesΒ 
Therapeutic Whirlpool
MLS AreaΒ 
CHI - Austin
School DistrictΒ 
299
TownshipΒ 
North Chicago
Schools
School District
299
Elementary School
Unknown
Middle School
Unknown
High School
Unknown
Listing Courtesy of MRED as distributed by MLS Grid of Redfin Corporation



Based on information submitted to the MLS GRID as of 2026-11-08 06:03 PM UTC. 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.
Last checked: 2026-11-08 06:03 PM UTC
MRED DMCA Copyright Information Copyright Β© 2026 Midwest Real Estate Data LLC. All rights reserved.

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Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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