9418 Knolltop Rd is a house on a 1.12 acre lot. - it last sold on June 03, 2024 for $251,250. Based on Redfin's Union data, we estimate the home's value is $360,393.
Single-familyProperty Type
1.12 acresLot Size
Source:Public Records
Redfin Estimate
$360,393
$109K since sold in June 2024$7,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 34.5% lower than the average sale price ($550K) 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
E1
Estate District
The intent of the E-1 Estate District is to accommodate single-family residences on a minimum of 1 acre that, due to topography and location, are well suited for single-family use. The E-1 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
Property details
Exterior
Property Information
Subdivision Name: KNOLL TOP SUB
Legal Description: DOC 2024R0013423 LT 3 KNOLL TOP SUB UNIT 1
Lot Information
Land Sq. Ft: 48,691
Legal Lot Number: 3
Legal Block Number: 178
Municipality Name: CORAL TOWNSHIP
Acres: 1.1178
County Use Description: RESIDENTIAL
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: —
Baths: —
Sq. Ft.: —
Stories: —
Lot Size: 1.12 acres
Style: Single Family Residential
Year Built: —
Year Renovated: —
County: McHenry County
APN: 17-23-178-003
Home facts updated by county records on Jun 15, 2026
Around this home
Schools
Leggee Elementary School
Public K-5 • Assigned • 2.6mi
9/10
Marlowe Middle School
Public 6-8 • Assigned • 4.9mi
7/10
Huntley High School
Public 9-12 • Assigned • 2.8mi
8/10
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
0.31% 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
2/10 Air Factor
0 unhealthy days expected this year, 1 days in 30 years
Provided by First Street
Historical weather
Union, IL • 60180
Average low and high temperatures (°F)
27
12
36
18
54
32
61
41
70
47
81
61
84
66
81
61
79
55
67
46
48
35
34
19
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
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Dec
Sun exposure
In this area, properties receive around 10.1 hours in
June and 3.5 hours in December, placing it below the
U.S. average for solar exposure.
10.1 hrs
3.5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$343,000 – $415,000
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