10221 River Rd, Potomac, MD 20859 Property Records

Montgomery County property record for 10221 River Rd, Potomac, MD 20859 · Last verified August 2026

Property Summary

Property Type	Government / Public Use
Details	14,172 sqft
Lot Size	2.76 acres (120,226 sqft)
Owner	Company Name on File
Tax Bill	$4,990 (2025)
Flood Zone	Zone X (minimal risk)
APN	`10-00858890`

Property Details

APN / Parcel Number

Primary APN	`10-00858890`
Alternative APN	`00858890`

Interior

Units	2 Units
Stories	1 Story
Building Area	14,172 sqft Gross Area
1st Floor Area	14,172 sqft
Fire Sprinklers	Fire Sprinklers

Exterior

Construction Type	Brick
Fire Resistance	Fireproof Reinforced Concrete
Lot Area	120,226 sqft
View / Lot	Commercial/Industrial
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Cooling System	Package A/C
Heating System	HVAC
Sewer	Connected

Location & Zoning

Account Number	00858890
Street Address	10221 RIVER RD
City	POTOMAC
State	MD
Zip	20859-7585
Property Category	Public Works
Property Type	Public Works > Government / Public Use
Legal Description	ELEANORS GREEN
Legal Subdivision	KNOLLWOOD
Legal Block	3
Jurisdiction	MONTGOMERY MD
Township / Civil Division	10
Census Block Group	3
Census Block	3005
Census Tract	706005

Owner

Source: Montgomery County records · APN 10-00858890

Assessment roll updated August 17, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on File
Mailing Address	500 N WASHINGTON ST, ROCKVILLE, MD 20850-9998
Owner Type	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: Montgomery County records · Assessment roll updated August 17, 2026 · Last verified August 2026

Property Jurisdictions

Type	Name
State	Maryland
County	Montgomery County
Unified School District	Montgomery County Public Schools (PK - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$4,172,000 (+3.07%)	$4,420,600 (+9.21%) Land $966,600 Building $3,454,000
2025	$4,990.00 (+32.82%)	$4,047,700 (+6.16%) Land $966,600 Building $3,081,100	$4,047,700 (-) Land $966,600 Building $3,081,100
2023		$3,812,900	$4,047,700 Land $966,600 Building $3,081,100
2022	$3,757.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Montgomery County (24031C), updated April 12, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Flood Hazard	Minimal
500-Year Floodplain	No
Special Flood Hazard Area	No

Wildfire

Wildfire Risk	Low above 20% of the US · above 41% of Maryland
Wildfire Likelihood	About 1 in 10,000 per year
Exposure	Indirect within ember reach

Values are read at the parcel center point; lenders make the official flood determination.