Montgomery County property record for 18315 Dundonnell Way, Olney, MD 20832
| Property Type | Single Family Home |
|---|---|
| Details | 2.5 ba · 4,484 sqft · built 1999 |
| Lot Size | 0.244 acres (10,625 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $367,763 (Nov 1999) |
| Tax Bill | $10,127 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-03098057 |
| Primary APN | 08-03098057 |
|---|---|
| Alternative APN |
|
| Full Baths | 2.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 4,484 sqft Living Area |
| Gross Area | 4,968 sqft |
| 1st Floor Area | 2,000 sqft |
| Basement Area | 1,000 sqft |
| Finished Basement | 1,000 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 1999 |
| Architectural Style | Bi-Level |
| Exterior Material | Siding |
| Roof Material | Composition Shingle |
| Lot Area | 10,625 sqft (0.244 acres) |
| Garage Type | Attached |
| Garage Area | 484 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Open Porch |
| Porch Area | 78 sqft |
| Deck Area | 180 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | Baseboard |
| Sewer | Municipal |
| Account Number | 03098057 |
|---|---|
| Street Address | 18315 DUNDONNELL WAY |
| City | DERWOOD |
| State | MD |
| Zip | 20855 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RE1 |
| Legal Description | BARNSLEY MANOR ESTATES |
| Legal Subdivision | BARNESLEY MANOR ESTATES |
| Legal Block | E |
| Legal Lot Number | 12 |
| Jurisdiction | MONTGOMERY MD |
| Township / Civil Division | 8 |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 701306 |
18315 Dundonnell Way is owned and occupied by two individuals who bought it in November 1999.
Source: Montgomery County records, as of August 17, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 18315 DUNDONNELL WAY, OLNEY, MD 20832-3134 |
| 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.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 17, 1999 · Amount on File |
| Deed Sale | Nov 17, 1999 · Amount on File |
| Deed Document Number | 1999165408 |
| Deed Book / Page | 17677 / 371 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 18315 Dundonnell Way was $10,127.
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 | $916,733 (+2.61%) | $963,400 (+7.84%) Land $276,700 Building $686,700 | |
| 2025 | $10,127.00 | $893,400 Land $263,400 Building $630,000 | $893,400 Land $263,400 Building $630,000 |
| 2023 | $774,067 | $893,400 Land $263,400 Building $630,000 | |
| 2022 | $8,156.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 18315 Dundonnell Way in Zone X, an area of minimal flood risk.
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 | 4 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 risk around 18315 Dundonnell Way 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 | Indirect within 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 207 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Verizon Fiber | 980 / 880 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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