8509 Atwell Rd, Potomac, MD 20854 Property Records

Montgomery County property record for 8509 Atwell Rd, Potomac, MD 20854

Property Summary

Property Type	Single Family Home
Details	2.5 ba · 2,085 sqft · built 1968
Lot Size	0.254 acres (11,083 sqft)
Owner	Individual Name on File
Tax Bill	$7,746 (2025)
Deeds & Mortgages	Feb 2018 Transfer
Flood Zone	Zone X (minimal risk)
APN	`04-00124151`

Property Details

APN / Parcel Number

Primary APN	`04-00124151`
Alternative APN	`00124151`

Interior

Full Baths	2.5 Baths
Half Baths	1 Half Bath
Stories	2 Stories
Building Area	2,085 sqft Living Area
1st Floor Area	1,214 sqft
Attic	Attic
Attic Area	165 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1968
Effective Year Built	Effective 1968
Architectural Style	Bi-Level
Exterior Material	Brick
Construction Type	Frame
Roof Material	Composition Shingle
Lot Area	11,083 sqft (0.254 acres)
Garage Type	Carport
Garage Area	336 sqft
Carport	Carport
Carport Area	336 sqft
Parking Spaces	1 Parking Space
Patio Area	270 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	HVAC
Sewer	Municipal

Location & Zoning

Account Number	00124151
Street Address	8509 ATWELL RD
City	POTOMAC
State	MD
Zip	20854-6232
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R90
Legal Description	MONTGOMERY SQUARE
Legal Subdivision	MONTGOMERY SQUARE
Legal Block	H
Legal Lot Number	9
Jurisdiction	MONTGOMERY MD
Township / Civil Division	4
Census Block Group	1
Census Block	1013
Census Tract	701002

Owner

Source: Montgomery County assessment roll, as of August 17, 2026

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

Owner of Record	Individual Name on File
Mailing Address	8509 ATWELL RD, POTOMAC, MD 20854-6232
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Transfer Date	Feb 2, 2018
Transfer Doc	0556770146
Record Updated	Sep 20, 2026

February 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MONTGOMERY MD
Recording Date	Feb 20, 2018
Property Address	8509 ATWELL RD, ROCKVILLE, MD 20854-6232
Document Number	0556770146
Book / Page	055677 / 000146
Instrument Date	Feb 2, 2018
Transaction Type	Transfer
Record Updated	Mar 6, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	8509 ATWELL RD POTOMAC MD 208546232, POTOMAC, MD 20854-6232

Tax Assessment & Valuation

Source: Montgomery County assessment roll, as of August 17, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$707,300 (+5.15%) Land $400,600 Building $306,700	$707,300 (-) Land $400,600 Building $306,700
2025	$7,746.00 (-2.59%)	$672,667 (+11.48%)	$707,300 (+17.22%) Land $400,600 Building $306,700
2024	$7,952.00 (+23.15%)
2023		$603,400 Land $381,700 Building $221,700	$603,400 Land $381,700 Building $221,700
2022	$6,457.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective April 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	2 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

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

Wildfire Risk	Low lower than 80% of the US · above 41% of Maryland
Wildfire Likelihood	0.01% annual chance
Exposure	None beyond ember reach

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	WASHINGTON SUBURBAN SANITARY COMMISSION serves 1,900,000 people · EPA ID MD0150005
Water Source	Surface water
Last State Inspection	May 2025
Lead	Under 1 ppb (2018–2020) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 441 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Verizon Fiber	2,300 / 2,300
Xfinity Cable	2,000 / 2,000
T-Mobile USA Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20