6511 Seven Locks Rd, Cabin John, MD 20818 Property Records

Montgomery County property record for 6511 Seven Locks Rd, Cabin John, MD 20818

Property Summary

Property Type	Single Family Home
Details	1 ba · 942 sqft · built 1937
Lot Size	0.304 acres (13,239 sqft)
Owner	2 Individual Names on File
Tax Bill	$8,259 (2025)
Flood Zone	Zone X (minimal risk)
APN	`07-00480252`

Property Details

APN / Parcel Number

Primary APN	`07-00480252`
Alternative APN	`00480252`

Interior

Full Baths	1 Bath
Stories	1 Story
Building Area	942 sqft Living Area
Gross Area	1,518 sqft
1st Floor Area	942 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1937
Effective Year Built	Effective 1937
Architectural Style	Townhouse
Construction Type	Frame
Roof Material	Composition Shingle
Lot Area	13,239 sqft (0.304 acres)
Garage Type	Attached
Garage Area	576 sqft
Porch	Open Porch
Porch Area	192 sqft
Deck Area	352 sqft

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Radiant
Sewer	Municipal

Location & Zoning

Account Number	00480252
Street Address	6511 SEVEN LOCKS RD
City	CABIN JOHN
State	MD
Zip	20818-1313
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R90
Legal Description	CABIN JOHN PARK SEC 1 6173/441 8665/405
Legal Subdivision	CABIN JOHN PARK
Legal Block	2
Legal Lot Number	64C
Jurisdiction	MONTGOMERY MD
Township / Civil Division	7
Census Block Group	2
Census Block	2020
Census Tract	705800

Owner

Source: Montgomery County assessment roll, APN 07-00480252, as of 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	2 Individual Names on File
Mailing Address	6511 SEVEN LOCKS RD, CABIN JOHN, MD 20818-1313
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Oct 30, 2000
Deed Sale	Oct 30, 2000
Deed Document Number	2000199329
Deed Book / Page	18507 / 796
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: Montgomery County assessment roll as of 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		$742,333 (+7.01%)	$839,600 (+21.03%) Land $708,500 Building $131,100
2025	$8,259.00 (+10.95%)	$693,700 (+2.6%) Land $644,100 Building $49,600	$693,700 (-) Land $644,100 Building $49,600
2023		$676,100	$693,700 Land $644,100 Building $49,600
2022	$7,444.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Montgomery County (24031C), as of April 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 240317058002, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 18 policies
Nearby Flood Policies	18 in force
Nearby Flood Claims	15 (1979–2022)
Claims Outside the SFHA	15 of 15
Most Recent Claim	Aug 2022 · other causes

Wildfire

Wildfire Risk	Low lower than 94% of the US · lower than 87% of Maryland
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

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.

Historic Designation

Source: NPS National Register of Historic Places as of August 1, 2026 · Last verified October 2026

Listed Area	Within Washington Aqueduct listed 1973 · 8 contributing resources · National Historic Landmark (designated 1973) · NRIS 73002123

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

Internet Providers

Source: FCC Broadband Data Collection, 297 locations within half a mile, as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Verizon Fiber · Fixed Wireless in parts of the area	2,300 / 2,300
Xfinity Cable	2,000 / 250
T-Mobile USA Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

Drinking Water

Source: EPA Safe Drinking Water Information System, water system MD0150005, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	WASHINGTON SUBURBAN SANITARY COMMISSION serves 1,900,000 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.