Montgomery County property record for 3900 Mount Olney Ln, Olney, MD 20832
| Property Type | Single Family Home |
|---|---|
| Details | 2.5 ba · 2,777 sqft · built 1970 |
| Lot Size | 0.344 acres (15,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $439,000 (Jul 2011) |
| Tax Bill | $7,087 (2025) |
| Deeds & Mortgages | May 2019 Mortgage Jun 2019 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-00739956 |
| Primary APN | 08-00739956 |
|---|---|
| Alternative APN |
|
| Full Baths | 2.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 2 Stories |
| Building Area | 2,777 sqft Living Area |
| Gross Area | 3,527 sqft |
| 1st Floor Area | 1,502 sqft |
| Basement Area | 500 sqft |
| Finished Basement | 500 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1970 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Bi-Level |
| Exterior Material | Brick |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 15,000 sqft (0.344 acres) |
| Garage Type | Attached |
| Garage Area | 546 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Enclosed Porch |
| Porch Area | 204 sqft |
| Deck Area | 168 sqft |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Sewer | Municipal |
| Account Number | 00739956 |
|---|---|
| Street Address | 3900 MOUNT OLNEY LN |
| City | OLNEY |
| State | MD |
| Zip | 20832-1124 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R200 |
| Legal Description | OLNEY MILL |
| Legal Subdivision | OLNEY MILL |
| Legal Block | 26 |
| Legal Lot Number | 17 |
| Jurisdiction | MONTGOMERY MD |
| Township / Civil Division | 8 |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 701304 |
3900 Mount Olney Ln is owned and occupied by two individuals who bought it in July 2011.
Source: Montgomery County records, as of August 17, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3900 MOUNT OLNEY LN, OLNEY, MD 20832-1124 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants by the Entirety |
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 |
|---|---|
| May 1, 2019 | Deed of Trust, Mortgage · Conventional Mortgage HOMESPIRE MORTGAGE CORP |
| Jun 19, 2019 | Deed of Trust, Mortgage · Line of Credit TOWER FCU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 12, 2011 · Amount on File |
| Deed Sale | Jul 12, 2011 · Amount on File |
| Deed Book / Page | 41861 / 357 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Property Address | 3900 MOUNT OLNEY LN, OLNEY, MD 20832-1124 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | OLD REPUBLIC TITLE INSURANCE |
| Name | Verified Name |
|---|
| Document Number | 0574970435 |
|---|---|
| Date | May 1, 2019 |
| Book Page | 57497/435 |
| Name | HOMESPIRE MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Address | GAITHERSBURG, MD 20878 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 240 Months |
| Due | May 1, 2039 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Property Address | 3900 MOUNT OLNEY LN, OLNEY, MD 20832-1124 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0577410212 |
|---|---|
| Date | Jun 19, 2019 |
| Book Page | 57741/212 |
| Name | TOWER FCU |
|---|---|
| Type | Credit Union |
| Address | LAUREL, MD 20707 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jul 25, 2049 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
The 2025 property tax bill for 3900 Mount Olney Ln was $7,087.
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 | $650,333 (+3.34%) | $692,400 (+10.03%) Land $259,100 Building $433,300 | |
| 2025 | $7,087.00 | $629,300 Land $246,700 Building $382,600 | $629,300 Land $246,700 Building $382,600 |
| 2023 | $540,633 | $629,300 Land $246,700 Building $382,600 | |
| 2022 | $5,192.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 3900 Mount Olney Ln in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective April 12, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 3900 Mount Olney Ln 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 | Direct burnable vegetation |
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 239 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 |
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