20919 San Mar Rd is a 1,128 square foot house on a 1.66 acre lot with 1 bathroom. Based on Redfin's Boonsboro data, we estimate the home's value is $296,267.
Single-familyProperty Type
1978Year Built
1.66 acresLot Size
$263Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$296,267
$11K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 17.8% lower than the average sale price ($361K) 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*
2026
$2,118 (+5.4%)
2025
$2,009 (+5.4%)
2024
$1,907 (+4.2%)
2023
$1,830 (+4.4%)
$84,900 + $93,500
$178,400
2022
$1,752 (+2.3%)
2021
$1,714 (+3.0%)
2020
$1,664 (+2.1%)
$84,900 + $71,100
$156,000
2019
$1,630 (+2.6%)
2018
$1,587
$84,900 + $59,200
$144,100
2017
$1,587 (−2.8%)
$84,900 + $59,200
$144,100
2016
$1,634
$84,900 + $63,600
$148,500
2015
$1,634
$84,900 + $63,600
$148,500
2014
$1,634 (−5.6%)
2013
$1,731 (+6.1%)
2012
$1,631 (+4.9%)
2011
$1,554 (+5.5%)
2010
$1,473 (+7.8%)
2009
$1,367
Tax history for 20919 San Mar Rd
Year
Property tax
Land + Additions
Assessment*
2026
$2,118 (+5.4%)
2025
$2,009 (+5.4%)
2024
$1,907 (+4.2%)
2023
$1,830 (+4.4%)
$84,900 + $93,500
$178,400
2022
$1,752 (+2.3%)
2021
$1,714 (+3.0%)
2020
$1,664 (+2.1%)
$84,900 + $71,100
$156,000
2019
$1,630 (+2.6%)
2018
$1,587
$84,900 + $59,200
$144,100
2017
$1,587 (−2.8%)
$84,900 + $59,200
$144,100
2016
$1,634
$84,900 + $63,600
$148,500
2015
$1,634
$84,900 + $63,600
$148,500
2014
$1,634 (−5.6%)
2013
$1,731 (+6.1%)
2012
$1,631 (+4.9%)
2011
$1,554 (+5.5%)
2010
$1,473 (+7.8%)
2009
$1,367
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
A(R)
Agricultural Rural District
The purpose of this district is to provide for continued farming activity and the many uses that do not require public water and sewerage facilities and which may be more suitably located outside of the urban-type growth of the larger communities of the County. The Agricultural zoning district has been purposely drawn to enclose large blocks of the best soils for intensive agricultural production as well as gently rolling topography for farming. Most of the operating farms as well as the largest block of farmland preserved through the Agricultural Preservation Program is located in this area.
Permitted uses
Include but are not limited to:
Agriculture
Equestrian facility
Greenhouse / nursery
Religious facility
Day care facility
Housing-Single unit
Housing-Multiple units
Manufacturing
Public service
Educational/school
Property details
Interior
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Type: Electric
Exterior
Exterior Information
Building Construction Quality: Fair
Exterior Wall: Aluminum/Vinyl
Building Type: Single Family
Property Information
Living Sq. Ft: 1,128
Building Sq. Ft: 1,128
# of Stories: 1
Stories Type: 1 Story With Basement
Legal Description: LOT 1 1.66 ACRE 20919 SAN MAR RD
Lot Information
# of Buildings: 1
Land Sq. Ft: 72,310
Legal Lot Number: 1
Acres: 1.66
Zoning Code: A(R)
State Use Description: RESIDENTIAL
Utility Information
Sewer Type: Private
Financial
Assessor Information
Assessment Year: 2026
Tax District County: 16
Public facts
Beds: —
Baths: 1.0
Sq. Ft.: 1,128
Stories: 1.0
Lot Size: 1.66 acres
Style: Single Family Residential
Year Built: 1978
Year Renovated: —
County: Washington County
APN: 16 003530
Home facts updated by county records on Sep 8, 2026
Around this home
Schools
Greenbrier Elementary School
Public PreK-5 • Assigned • 0.7mi
7/10
Boonsboro Middle School
Public 6-8 • Assigned • 2.5mi
8/10
Boonsboro High School
Public 9-12 • Assigned • 2.5mi
9/10
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
5/10 Heat Factor
7 days above 99° expected this year, 16 days in 30 years
3/10 Wind Factor
4% 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
Boonsboro, MD • 21713
Average low and high temperatures (°F)
36
21
44
26
61
39
69
48
74
54
84
64
89
70
82
62
78
59
68
45
56
38
43
28
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9 hours in
June and 3.8 hours in December, placing it below the
U.S. average for solar exposure.
9 hrs
3.8 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$282,000 – $341,000
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