9147 Longs Mill Rd is a 1,837 square foot house on a 0.92 acre lot with 1 bathroom. Based on Redfin's Rocky Ridge data, we estimate the home's value is $377,749.
Single-familyProperty Type
1972Year Built
0.92 acresLot Size
$206Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$377,749
$18K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 10.1% lower than the average sale price ($420K) of 6 comparable homes.
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Earn from this home
Sell
$353,981
Est. take-home
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Market trends in 21778, MD
Last updated September 2026
Sale-to-List Price
98.5%
1.5% MoM
Median sale price
$398K
$43K MoM
Avg. days on market
98d
65 days MoM
Recently sold homes
2
1 MoM
Provided by Redfin
Sale history for 9147 Longs Mill Rd
Date
Event
Price
Public Records
Aug 11, 2003
Sold
$270,000
$147/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$4,296 (+5.3%)
$73,300 + $326,600
$399,900
2025
$4,080 (+5.3%)
$73,300 + $326,600
$399,900
2024
$3,876 (+9.5%)
2023
$3,538 (+4.3%)
2022
$3,394 (+3.5%)
$73,300 + $218,600
$291,900
2021
$3,278 (+5.6%)
2020
$3,105 (+2.2%)
2019
$3,038 (+1.4%)
$73,300 + $181,300
$254,600
2018
$2,997 (+3.2%)
2017
$2,904 (−1.5%)
$73,300 + $164,000
$237,300
2015
$2,947 (−0.4%)
$77,300 + $161,600
$238,900
2014
$2,957
2013
$2,957 (−15.9%)
2012
$3,516 (+3.7%)
2011
$3,392
2010
$3,392 (+32.1%)
2009
$2,567
Tax history for 9147 Longs Mill Rd
Year
Property tax
Land + Additions
Assessment*
2026
$4,296 (+5.3%)
$73,300 + $326,600
$399,900
2025
$4,080 (+5.3%)
$73,300 + $326,600
$399,900
2024
$3,876 (+9.5%)
2023
$3,538 (+4.3%)
2022
$3,394 (+3.5%)
$73,300 + $218,600
$291,900
2021
$3,278 (+5.6%)
2020
$3,105 (+2.2%)
2019
$3,038 (+1.4%)
$73,300 + $181,300
$254,600
2018
$2,997 (+3.2%)
2017
$2,904 (−1.5%)
$73,300 + $164,000
$237,300
2015
$2,947 (−0.4%)
$77,300 + $161,600
$238,900
2014
$2,957
2013
$2,957 (−15.9%)
2012
$3,516 (+3.7%)
2011
$3,392
2010
$3,392 (+32.1%)
2009
$2,567
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
A
Agricultural District
The purpose of the Agricultural District (A) is to preserve productive agricultural land and the character and quality of the rural environment and to prevent urbanization where roads and other public facilities are scaled to meet only rural needs.
Permitted uses
Include but are not limited to:
Agriculture
Greenhouse / nursery
Winery & vineyard
Housing-Group
Housing-Single unit
Housing-Multiple units
Housing-Mobile home park
Property details
Interior
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Type: Hot Air
Fireplace Information
# of Fireplaces: 2
Fireplace Type: 1 Story Brick
Has Fireplace
Exterior
Exterior Information
Building Construction Quality: Fair
Exterior Wall: Brick
Building Type: Single Family
Property Information
Subdivision Name: KOLB ROBERT E PROP
Living Sq. Ft: 1,837
Building Sq. Ft: 1,837
# of Stories: 1
Stories Type: 1 Story With Basement
Legal Description: LT .92 AC SE/S LONGS MILL RD NR. CREAGERSTOWN
Parking & Garage Information
Parking Type: Detached Frame Garage
Garage/Parking Sq. Ft: 1,280
Garage / Carport Type: Detached Frame
Lot Information
# of Buildings: 1
Land Sq. Ft: 40,075
Legal Lot Number: 92
Legal Block Number: I
Acres: 0.92
Zoning Code: A
State Use Description: RESIDENTIAL
Utility Information
Sewer Type: Private
Financial
Assessor Information
Assessment Year: 2026
Tax District County: 04
Public facts
Beds: —
Baths: 1.0
Sq. Ft.: 1,837
Stories: 1.0
Lot Size: 0.92 acres
Style: Single Family Residential
Year Built: 1972
Year Renovated: —
County: Frederick County
APN: 04 156285
Home facts updated by county records on Sep 24, 2026
Around this home
Schools
Thurmont Primary School
Public PreK-2 • Assigned • 3.1mi
Thurmont Middle School
Public 6-8 • Assigned • 4.0mi
5/10
Catoctin High School
Public 9-12 • Assigned • 5.0mi
6/10
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
6/10 Heat Factor
7 days above 102° expected this year, 16 days in 30 years
4/10 Wind Factor
10% chance of strong winds in next 30 years
2/10 Air Factor
1 unhealthy days expected this year, 2 days in 30 years
Provided by First Street
Historical weather
Rocky Ridge, MD • 21778
Average low and high temperatures (°F)
36
23
41
28
60
39
67
48
72
55
84
65
88
70
81
62
79
59
68
47
56
40
42
29
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.1 hours in
June and 3.9 hours in December, placing it below the
U.S. average for solar exposure.
9.1 hrs
3.9 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$359,000 – $435,000
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