9811 Longs Mill Rd is a 980 square foot home on a 3 acre lot with 1 bathroom. - it last sold on December 04, 2024 for $240,500. Based on Redfin's Rocky Ridge data, we estimate the home's value is $683,436.
ManufacturedProperty Type
1987Year Built
3 acresLot Size
$697Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$683,436
$443K since sold in December 2024$47K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 22.6% higher than the average sale price ($557K) of 6 comparable homes.
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Earn from this home
Refinance
$0
Est. cash available
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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 9811 Longs Mill Rd
Date
Event
Price
Public Records
Dec 4, 2024
Sold
$240,500
$245/sq ft
Public Records
Mar 25, 1994
Sold
$60,000
$61/sq ft
Year
Property tax
Land + Additions
Assessment*
2026
$2,035 (+3.9%)
$86,000 + $69,800
$155,800
2025
$1,958 (+4.1%)
$86,000 + $69,800
$155,800
2024
$1,882 (+8.3%)
2023
$1,738 (+2.0%)
2022
$1,704 (+1.2%)
$86,000 + $50,900
$136,900
2021
$1,683 (+3.0%)
2020
$1,635 (+1.0%)
2019
$1,618 (+0.2%)
$86,000 + $42,000
$128,000
2018
$1,615 (+91.8%)
2017
$842 (−7.4%)
$86,000 + $37,700
$123,700
2015
$909
$90,000 + $37,000
$127,000
2014
$909 (−2.6%)
2013
$934 (−16.7%)
2012
$1,121 (+0.6%)
2011
$1,114
2010
$1,114 (+19.2%)
2009
$934
Tax history for 9811 Longs Mill Rd
Year
Property tax
Land + Additions
Assessment*
2026
$2,035 (+3.9%)
$86,000 + $69,800
$155,800
2025
$1,958 (+4.1%)
$86,000 + $69,800
$155,800
2024
$1,882 (+8.3%)
2023
$1,738 (+2.0%)
2022
$1,704 (+1.2%)
$86,000 + $50,900
$136,900
2021
$1,683 (+3.0%)
2020
$1,635 (+1.0%)
2019
$1,618 (+0.2%)
$86,000 + $42,000
$128,000
2018
$1,615 (+91.8%)
2017
$842 (−7.4%)
$86,000 + $37,700
$123,700
2015
$909
$90,000 + $37,000
$127,000
2014
$909 (−2.6%)
2013
$934 (−16.7%)
2012
$1,121 (+0.6%)
2011
$1,114
2010
$1,114 (+19.2%)
2009
$934
*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: Electric
Exterior
Exterior Information
Building Style Type: Mobile Home
Building Construction Quality: Fair
Exterior Wall: Aluminum/Vinyl
Roof Shape Type: Metal
Building Type: Mobile Home
Mobile Home Information
Is Mobile Home
Property Information
Living Sq. Ft: 980
Building Sq. Ft: 980
# of Stories: 1
Stories Type: 1
Legal Description: 3 AC E/S LONGS MILL RD. NR ROCKY RIDGE
Parking & Garage Information
Parking Type: Detached Frame Garage
Garage/Parking Sq. Ft: 576
Garage / Carport Type: Detached Frame
Lot Information
# of Buildings: 1
Land Sq. Ft: 130,680
Legal Lot Number: 41
Acres: 3
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.: 980
Stories: 1.0
Lot Size: 3 acres
Style: Mobile/Manufactured Home
Year Built: 1987
Year Renovated: —
County: Frederick County
APN: 04 155521
Home facts updated by county records on Sep 24, 2026
Around this home
Schools
Thurmont Primary School
Public PreK-2 • Assigned • 4.0mi
Thurmont Middle School
Public 6-8 • Assigned • 4.9mi
5/10
Catoctin High School
Public 9-12 • Assigned • 5.6mi
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
8% 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)
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68
47
56
40
42
29
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Sun exposure
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