4509 Wetherill Rd, Bethesda — tax account 160700546080
Single-family house built in 1937, 3,325 ft² on 0.31 acres in Bethesda, Montgomery County, assessed at $2,242,500; last transfer December 1, 2025 for $2,950,000.
From the State Department of Assessments and Taxation file as published by the Maryland Department of Planning (MD iMAP) — not the official record. Open the official SDAT record.
Account
| Tax account number | 160700546080 |
|---|
| Map, grid, parcel | Map HM12 · Block 1 Lot 6 |
|---|
| Location | 4509 Wetherill Rd, Bethesda MD 20816 |
|---|
| Jurisdiction | Montgomery County |
|---|
| Subdivision | Westmoreland Hills |
|---|
| Plat | 513 |
|---|
Land
| Land use | Residential (R) |
|---|
| Zoning | R60 |
|---|
| Acreage | 0.313 acres (13,634 ft²) |
|---|
Structure
| Year built | 1937 |
|---|
| Above-grade area | 3,325 ft² |
|---|
| Style | 2 Story With Basement |
|---|
| Building type | Standard Unit |
|---|
| Construction | Frame |
|---|
| Quality grade | 6 (on a scale of 1 to 9) |
|---|
Assessment — January 2026
| Land | $1,007,900 |
|---|
| Improvements | $1,234,600 |
|---|
| Total | $2,242,500 |
|---|
| Homestead qualification code | 1 |
|---|
Last transfer
| Date | December 1, 2025 |
|---|
| Consideration | $2,950,000 |
|---|
| Deed reference | liber 65853, folio 0166 |
|---|
What this means
- Maryland reassesses each property every three years; increases are phased in over the following three years, and the Homestead Tax Credit caps the yearly increase on a principal residence.
- Assessed 260% above the median residential account in Montgomery County ($623,400, 248,486 accounts).
- The last transfer price is 32% above the current assessment.
- Built before 1978: Maryland requires rental units built before 1978 to be registered with MDE and to pass a lead-risk reduction inspection.
Parcel point of the Maryland Department of Planning — not a survey.
Data: Maryland Department of Planning / SDAT, MD iMAP Parcel Points, retrieved November 1, 2026. Sources and freshness. No owner names or mailing addresses are published.
The report for account 160700546080
This page shows the assessment record. The report adds what lies around the property: FEMA flood zone, Critical Area designation, wetlands, contaminated land sites nearby and historic properties.
$19card · PDF within 24 h · you pay after receiving itSee the sample (PDF)
Order the report