9000 Willow Valley Dr, Potomac — tax account 160400130493
Single-family house built in 1971, 3,313 ft² on 0.31 acres in Potomac, Montgomery County, assessed at $1,078,900; last transfer June 30, 2026 for $1,500,000.
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 | 160400130493 |
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| Map, grid, parcel | Map FQ56 · Block D Lot 95 |
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| Location | 9000 Willow Valley Dr, Potomac MD 20854 |
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| Jurisdiction | Montgomery County |
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| Subdivision | Copenhaver |
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| Plat | 9489 |
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Land
| Land use | Residential (R) |
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| Zoning | R200 |
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| Acreage | 0.306 acres (13,329 ft²) |
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Structure
| Year built | 1971 |
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| Above-grade area | 3,313 ft² |
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| Style | 1.5 Story With Basement |
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| Building type | Standard Unit |
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| Construction | Brick |
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| Quality grade | 5 (on a scale of 1 to 9) |
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Assessment — October 2023
| Land | $461,500 |
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| Improvements | $617,400 |
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| Total | $1,078,900 |
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Last transfer
| Date | June 30, 2026 |
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| Consideration | $1,500,000 |
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| Deed reference | liber 15141, folio 0169 |
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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 73% above the median residential account in Montgomery County ($623,400, 248,486 accounts).
- The last transfer price is 39% 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 160400130493
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.
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