Montgomery County property record for 6600 Seven Locks Rd, Cabin John, MD 20818
| Property Type | Single Family Home |
|---|---|
| Details | 5 ba · 4,262 sqft · built 2016 |
| Lot Size | 0.207 acres (9,017 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,300,000 (Sep 2017) |
| Tax Bill | $16,551 (2025) |
| Deeds & Mortgages | Feb 2026 Mortgage Mar 2024 Line of Credit + 2 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 07-02923775 |
| Primary APN | 07-02923775 |
|---|---|
| Alternative APN |
|
| Full Baths | 5 Baths |
|---|---|
| Stories | 2 Stories |
| Building Area | 4,262 sqft Living Area |
| Gross Area | 4,994 sqft |
| 1st Floor Area | 1,749 sqft |
| Basement Area | 955 sqft |
| Finished Basement | 955 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2016 |
|---|---|
| Effective Year Built | Effective 2016 |
| Architectural Style | Bi-Level |
| Exterior Material | Siding |
| Roof Material | Composition Shingle |
| Lot Area | 9,017 sqft (0.207 acres) |
| Garage Type | Attached |
| Garage Area | 630 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Area | 100 sqft |
|---|---|
| Porch | Open Porch |
| Porch Area | 279 sqft |
| Deck Area | 102 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Account Number | 02923775 |
|---|---|
| Street Address | 6600 SEVEN LOCKS RD |
| City | CABIN JOHN |
| State | MD |
| Zip | 20818-1314 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R90 |
| Legal Description | CABIN JOHN PARK HOFFMANS SUB |
| Legal Subdivision | CABIN JOHN PARK |
| Legal Block | 2 |
| Legal Lot Number | 8 |
| Jurisdiction | MONTGOMERY MD |
| Township / Civil Division | 7 |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 705800 |
Source: NPS National Register of Historic Places, as of August 1, 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.
6600 Seven Locks Rd is owned and occupied by two individuals who bought it in September 2017.
Source: Montgomery County records, as of August 17, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 6600 SEVEN LOCKS RD, CABIN JOHN, MD 20818-1314 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Feb 17, 2026 | Deed of Trust, Mortgage · Conventional Mortgage UNITED NATIONS FCU |
| Mar 14, 2024 | Deed of Trust, Mortgage · Line of Credit UNITED NATIONS FCU |
| Sep 27, 2017 | Deed, Transfer · ARM UNITED NATIONS FCU |
| Sep 27, 2017 | Grant Deed, Transfer RGS TITLE |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 27, 2017 · Amount on File |
| Deed Sale | Sep 27, 2017 · Amount on File |
| Prior Sale | Feb 11, 2015 · Amount on File |
| Deed Book / Page | 54973 / 204 |
| Prior Transfer Date | Aug 24, 2017 |
| Prior Transfer Doc | 0549730192 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Property Address | 6600 SEVEN LOCKS RD, CABIN JOHN, MD 20818-1314 |
| Transaction Type | Mortgage |
| Record Updated | Mar 4, 2026 |
| Title Company | FIRST AMERICAN TITLE INSURANCE COMPANY NC, FIRST AMERICAN TITLE INS CO |
| Name | Verified Name |
|---|---|
| Address | 6600 SEVEN LOCKS RD, CABIN JOHN, MD 20818-1314 |
| Document Number | 0701460191 |
|---|---|
| Date | Feb 17, 2026 |
| Book Page | 70146/191 |
| Name | UNITED NATIONS FCU |
|---|---|
| Type | Credit Union |
| Address | WASHINGTON, DC 20006 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Mar 1, 2056 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.62% |
| Type Change Date | Mar 1, 2033 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 10.6% |
| Index | SOFR Average 30-Day |
| Max Rate | 10.6% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Property Address | 6600 SEVEN LOCKS RD, CABIN JOHN, MD 20818-1314 |
| Transaction Type | Mortgage |
| Record Updated | May 14, 2024 |
| Name | Verified Name |
|---|
| Document Number | 0678200167 |
|---|---|
| Date | Mar 14, 2024 |
| Book Page | 67820/167 |
| Name | UNITED NATIONS FCU |
|---|---|
| Type | Credit Union |
| Address | LONG ISLAND CITY, NY 11101 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2054 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Recording Date | Sep 27, 2017 |
| Property Address | 6600 SEVEN LOCKS RD, CABIN JOHN, MD 20818-1314 |
| Document Number | 0549730204 |
| Book / Page | 54973 / 204 |
| Map Reference | MB161 PL18267 |
| Instrument Date | Sep 6, 2017 |
| Transaction Type | Transfer |
| Record Updated | Aug 11, 2022 |
| Title Company | PGS TITLE LLC |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $16,250.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 00000 |
| Name | Verified Name |
|---|---|
| Address | 6600 SEVEN LOCKS RD, CABIN JOHN, MD 20818-1314 |
| Document Number | 0054973212 |
|---|---|
| Date | Sep 27, 2017 |
| Instrument | 54973/212 |
| Name | UNITED NATIONS FCU |
|---|---|
| Type | Credit Union |
| Type | ARM |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Oct 1, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 3.25% |
| Type Change Date | Oct 1, 2024 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 6.25% |
| Index | 1-Year CMT |
| Max Rate | 8.25% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Recording Date | Sep 27, 2017 |
| Property Address | 6600 SEVEN LOCKS RD, CABIN JOHN, MD 20818-1314 |
| Document Number | 0549730192 |
| Book / Page | 054973 / 000192 |
| Instrument Date | Aug 24, 2017 |
| Transaction Type | Transfer |
| Record Updated | Oct 11, 2017 |
| Title Company | RGS TITLE |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 5825 ROLLING DR DERWOOD MD 208552407, DERWOOD, MD 20855-2407 |
The 2025 property tax bill for 6600 Seven Locks Rd was $16,551, up 3.2% from the year before.
Source: Montgomery County assessment roll, as of August 17, 2026
| Type | Name |
|---|---|
| State | Maryland |
| County | Montgomery County |
| Unified School District | Montgomery County Public Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,528,967 (+11.87%) | $1,853,500 (+35.62%) Land $710,800 Building $1,142,700 | |
| 2025 | $16,551.00 (+3.21%) | $1,366,700 Land $646,100 Building $720,600 | $1,366,700 Land $646,100 Building $720,600 |
| 2024 | $16,036.00 | ||
| 2023 | $1,292,300 | $1,366,700 Land $646,100 Building $720,600 | |
| 2022 | $13,811.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 6600 Seven Locks Rd in Zone X, an area of minimal flood risk, though there have been 15 flood claims nearby since 1979.
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 |
| Flood Insurance Cost | Premium on File 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 |
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 risk around 6600 Seven Locks Rd is low, with a 0.01% annual chance of 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 |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
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 |
| 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.
Source: FCC Broadband Data Collection, based on 297 locations within half a mile, as of December 31, 2025
| 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 Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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