820 3 Oaks Rd is a 1,419 square foot house on a 4.66 acre lot with 1.5 bathrooms. - it last sold on September 03, 2002 for $429,000. Based on Redfin's Cary data, we estimate the home's value is $469,650.
Single-familyProperty Type
1963Year Built
4.66 acresLot Size
$331Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$469,650
$41K since sold in September 2002$2,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 9.3% higher than the average sale price ($430K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
E2
Estate District
The intent of the E-2 Estate District is to accommodate single-family residences on a minimum of 2 acres that, due to topography and location, are well suited for single-family use. The E-2 District is intended to be located in close proximity to municipalities or historic town centers where infrastructure and services are readily accessible, to encourage the compact and contiguous development policy of the 2030 Plan, and shall take into consideration the densities of the adjacent municipality.
Permitted uses
Include but are not limited to:
Housing-Single unit
Public service
Educational/school
Fire house
Police station
Park & open space
Jul 24, 1967 • Final
Residential accessory structure
ADU
Dec 31, 1962 • Final
Residential single family residence
New construction
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Basement Information
Basement Sq. Ft: 1,419
Bathroom Information
# of Full Baths: 1
# of 1/2 Baths: 1
Heating & Cooling
Heating Type: Forced Air Gas
Exterior
Exterior Information
Building Style Type: Ranch
Exterior Wall: Frame Siding
Property Information
Living Sq. Ft: 1,419
Ground Floor Sq. Ft: 1,419
Building Sq. Ft: 2,838
# of Stories: 1
Legal Description: DOC 2002R0076646 S 669FT E1/2 E1/2 SW1/4 NW1/4 /EX E 18FT/
Lot Information
# of Buildings: 1
Land Sq. Ft: 202,990
Legal Block Number: 151
Municipality Name: ALGONQUIN TOWNSHIP
Acres: 4.66
Depth Footage: 639
Front Footage: 312
County Use Description: RESIDENTIAL
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: —
Baths: 1.5
Sq. Ft.: 1,419
Stories: 1.0
Lot Size: 4.66 acres
Style: Single Family Residential
Year Built: 1963
Year Renovated: —
County: McHenry County
APN: 20-08-151-015
Home facts updated by county records on Jun 15, 2026
Around this home
Schools
Oak Knoll Early Childhood Center
Public PreK-K • Assigned • 1.2mi
Cary Junior High School
Public 6-8 • Assigned • 1.4mi
7/10
Cary-Grove Community High School
Public 9-12 • Assigned • 1.4mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
3/10 Fire Factor
0.15% chance of being in a wildfire in next 30 years
2/10 Heat Factor
7 days above 101° expected this year, 14 days in 30 years
2/10 Wind Factor
0% chance of strong winds in next 30 years
3/10 Air Factor
3 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Cary, IL • 60013
Average low and high temperatures (°F)
28
13
36
20
53
32
61
41
68
47
80
61
83
66
80
62
78
56
66
46
48
35
34
20
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.1 hours in
June and 3.4 hours in December, placing it below the
U.S. average for solar exposure.
10.1 hrs
3.4 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$447,000 – $541,000
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