Montgomery County property record for 9429 Holbrook Ln, Potomac, MD 20854
| Property Type | Single Family Home |
|---|---|
| Details | 3.5 ba · 2,580 sqft · built 1974 |
| Lot Size | 0.365 acres (15,877 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $10,003 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 10-01506741 |
| Primary APN | 10-01506741 |
|---|---|
| Alternative APN |
|
| Full Baths | 3.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 2,580 sqft Living Area |
| Gross Area | 2,708 sqft |
| 1st Floor Area | 1,376 sqft |
| Basement Area | 602 sqft |
| Finished Basement | 602 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1974 |
|---|---|
| Effective Year Built | Effective 1974 |
| Architectural Style | Multi-Level |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 15,877 sqft (0.365 acres) |
| Garage Type | Detached |
| Garage Area | 520 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Area | 576 sqft |
|---|---|
| Porch | Enclosed Porch |
| Porch Area | 128 sqft |
| Deck Area | 112 sqft |
| Patio Area | 462 sqft |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Sewer | Municipal |
| Account Number | 01506741 |
|---|---|
| Street Address | 9429 HOLBROOK LN |
| City | POTOMAC |
| State | MD |
| Zip | 20854-3931 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R200 |
| Legal Description | TIMBERWOOD OF POTOMA C |
| Legal Subdivision | TIMBERWOOD OF POTOMAC |
| Legal Block | 2 |
| Legal Lot Number | 23 |
| Jurisdiction | MONTGOMERY MD |
| Township / Civil Division | 10 |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 706009 |
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 9429 HOLBROOK LN, POTOMAC, MD 20854-3931 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
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 | $908,367 (+3.67%) | $972,700 (+11.01%) Land $483,200 Building $489,500 | |
| 2025 | $10,003.00 (+21.54%) | $876,200 (+9.13%) Land $483,200 Building $393,000 | $876,200 (-) Land $483,200 Building $393,000 |
| 2023 | $802,867 | $876,200 Land $483,200 Building $393,000 | |
| 2022 | $8,230.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 Record median of 20 policies |
| Nearby Flood Policies | 20 in force |
| Nearby Flood Claims | 7 (1982–2025) |
| Claims Outside the SFHA | 7 of 7 |
| Most Recent Claim | Jul 2025 · rainfall accumulation |
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.
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 | Direct burnable vegetation at the parcel |
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 166 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber | 2,300 / 2,300 |
| Xfinity Cable | 1,200 / 35 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
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