21172 San Mar Rd, Boonsboro, MD 21713 Property Records

Washington County property record for 21172 San Mar Rd, Boonsboro, MD 21713

Property Summary

Property TypeSingle Family Home
Details2.5 ba · 2,500 sqft · built 2003
Lot Size9.69 acres (422,096 sqft)
Owner2 Individual Names on File
Last Sale$110,000 (Dec 2002)
Tax Bill$5,293 (2026)
Flood ZoneZone A (high risk)
APN16-023078

Property Details

APN / Parcel Number

Primary APN16-023078
Alternative APN
  • 023078

Interior

Full Baths2.5 Baths
Half Baths1 Half Bath
Stories2 Stories
Building Area2,500 sqft Total Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 2003
Effective Year BuiltEffective 2003
Exterior MaterialSiding
Roof MaterialComposition Shingle
Lot Area422,096 sqft (9.69 acres)
Garage TypeMixed
Garage Area506 sqft
Parking Spaces2 Parking Spaces

Exterior Amenities

Pool Area700 sqft
PorchSlab
Porch Area166 sqft
Deck Area374 sqft
Shed1 Shed
Shed Area1,560 sqft

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemHeat Pump
SewerConnected

Location & Zoning

Account Number023078
Street Address21172 SAN MAR RD
CityBOONSBORO
StateMD
Zip21713-1641
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeA(R)
Legal DescriptionLOT 3 9.69 ACRES 21172 SAN MAR ROAD
Legal SubdivisionRYAN BENISEK
Legal Lot Number3
JurisdictionWASHINGTON MD
Township / Civil Division16, BEAVER CREEK
Census Block Group2
Census Block2012
Census Tract11302

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Individually ListedOld National Pike Milestones
listed 1975 · 69 contributing resources · NRIS 75002107

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

21172 San Mar Rd is owned and occupied by two individuals who bought it in December 2002.

Source: Washington County records, as of October 20, 2026

Owner of Record2 Individual Names on File
Mailing Address21172 SAN MAR RD, BOONSBORO, MD 21713-1641
OccupancyOwner Occupied
Owner TypeIndividual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleDec 10, 2002 · Amount on File
Deed SaleDec 10, 2002 · Amount on File
Deed Document Number20024413
Deed Book / Page1883 / 67
Record UpdatedOct 29, 2026

Tax Assessment & Valuation

The 2026 property tax bill for 21172 San Mar Rd was $5,293 with a homeowner's exemption, up 5.6% from the year before.

Source: Washington County assessment roll, as of October 6, 2026

Property Jurisdictions

TypeName
StateMaryland
CountyWashington County
Unified School DistrictWashington County Public Schools (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$5,293.00 (+5.56%) Homeowner's exemption$573,633 (+11.76%)$634,000 (-) Land $142,100 Building $491,900
2025$5,014.00 Homeowner's exemption$513,267$634,000 Land $142,100 Building $491,900
2023$4,511.00 Homeowner's exemption$433,767$452,900 Land $127,100 Building $325,800

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 21172 San Mar Rd in Zone A, a high-risk flood area; flood insurance is required for federally backed loans.

Source: FEMA National Flood Hazard Layer, effective August 14, 2017 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone A
high risk
100-Year FloodplainYes
1% annual chance
FloodwayNo
Base Flood ElevationNot determined for this zone
Flood Insurance RequirementRequired
federally backed loans
Nearby Flood Policies3 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 21172 San Mar Rd is low, with a 0.04% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 80% of the US · above 41% of Maryland
Wildfire Likelihood0.04% annual chance
ExposureDirect
burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Internet Providers

Source: FCC Broadband Data Collection, based on 45 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Fiber
2,000 / 2,000
Antietam Cable
Cable
1,300 / 50

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