29702 Grennan Rd is a 1,248 square foot house on a 5 acre lot with 3 bedrooms. Based on Redfin's Rock Falls data, we estimate the home's value is $260,445.
Single-familyProperty Type
1973Year Built
5 acresLot Size
$209Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$260,445
$0 since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 37.9% higher than the average sale price ($189K) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$7,954 (+11.6%)
$16,858 + $78,069
$94,927
2024
$7,127 (+7.9%)
$14,866 + $68,844
$83,710
2023
$6,602 (+21.5%)
$13,545 + $62,728
$76,273
2022
$5,435 (+20.1%)
$12,693 + $48,520
$61,213
2021
$4,524 (+34.6%)
$12,604 + $37,817
$50,421
2020
$3,362 (−0.7%)
$12,307 + $36,927
$49,234
2019
$3,384 (+0.2%)
$12,046 + $36,143
$48,189
2018
$3,376 (+0.6%)
$9,130 + $40,066
$49,196
2017
$3,355 (+4.6%)
$8,749 + $38,396
$47,145
2016
$3,206 (+2.2%)
$8,328 + $36,550
$44,878
2015
$3,137 (+1.1%)
$8,022 + $35,205
$43,227
2013
$3,103
$8,414 + $36,923
$45,337
Tax history for 29702 Grennan Rd
Year
Property tax
Land + Additions
Assessment*
2025
$7,954 (+11.6%)
$16,858 + $78,069
$94,927
2024
$7,127 (+7.9%)
$14,866 + $68,844
$83,710
2023
$6,602 (+21.5%)
$13,545 + $62,728
$76,273
2022
$5,435 (+20.1%)
$12,693 + $48,520
$61,213
2021
$4,524 (+34.6%)
$12,604 + $37,817
$50,421
2020
$3,362 (−0.7%)
$12,307 + $36,927
$49,234
2019
$3,384 (+0.2%)
$12,046 + $36,143
$48,189
2018
$3,376 (+0.6%)
$9,130 + $40,066
$49,196
2017
$3,355 (+4.6%)
$8,749 + $38,396
$47,145
2016
$3,206 (+2.2%)
$8,328 + $36,550
$44,878
2015
$3,137 (+1.1%)
$8,022 + $35,205
$43,227
2013
$3,103
$8,414 + $36,923
$45,337
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
A-1
Agricultural District
The purpose of the agricultural district is to preserve, to the greatest extent possible, the agricultural base of the county. This is to be accomplished by limiting the allowable and conditional uses and also through the use of the LESA program when considering proposed changes to other zoning classifications.
Permitted uses
Include but are not limited to:
Agriculture
Greenhouse / nursery
Religious facility
Housing-Group
Housing-Single unit
Infrastructure
Office
Educational/school
Kennel
Park & open space
Property details
Interior
Basement Information
Basement Sq. Ft: 1,248
Basement Type: Full
Exterior
Exterior Information
Building Type: Single Family
Property Information
Building Sq. Ft: 1,248
Legal Description: E 330 OF W 1320 OF S 659.98 NW SE SEC 15 TWP 20 RNG 7 13005X
Parking & Garage Information
Garage/Parking Sq. Ft: 624
Lot Information
# of Buildings: 1
Land Sq. Ft: 217,800
Municipality Name: MONTMORENCY
Acres: 5
County Use Description: IMPROVED LOTS
Financial
Assessor Information
Assessment Year: 2025
Tax Area: WHITESIDE COUNTY
Public facts
Beds: 3
Baths: —
Sq. Ft.: 1,248
Stories: —
Lot Size: 5 acres
Style: Single Family Residential
Year Built: 1973
Year Renovated: —
County: Whiteside County
APN: 1715401006
Home facts updated by county records on Sep 21, 2026
Around this home
Schools
Montmorency Ccsd #145
Public K-8 • Assigned • 0.8mi
5/10
Rock Falls Township High School
Public 9-12 • Assigned • 4.4mi
4/10
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
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
2/10 Heat Factor
7 days above 103° expected this year, 16 days in 30 years
2/10 Wind Factor
0% chance of strong winds in next 30 years
3/10 Air Factor
2 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Rock Falls, IL • 61071
Average low and high temperatures (°F)
30
14
39
20
56
34
64
44
74
51
83
63
87
68
83
63
82
55
70
47
50
35
35
21
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.9 hours in
June and 3.7 hours in December, placing it below the
U.S. average for solar exposure.