11521 Twining Ln, Potomac — tax account 161001849958
Single-family house built in 1984, 4,378 ft² on 0.67 acres in Potomac, Montgomery County, assessed at $1,716,800; last transfer January 5, 2026 for $1,750,000.
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 | 161001849958 |
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| Map, grid, parcel | Map FQ34 · Block C Lot 15 |
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| Location | 11521 Twining Ln, Potomac MD 20854 |
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| Jurisdiction | Montgomery County |
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| Subdivision | Glen Mill Village |
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Land
| Land use | Residential (R) |
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| Zoning | RE1 |
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| Acreage | 0.670 acres (29,185 ft²) |
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Structure
| Year built | 1984 |
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| Above-grade area | 4,378 ft² |
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| Style | 2 Story With Basement |
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| Building type | Standard Unit |
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| Construction | Brick |
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| Quality grade | 6 (on a scale of 1 to 9) |
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Assessment — January 2026
| Land | $489,800 |
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| Improvements | $1,227,000 |
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| Total | $1,716,800 |
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Last transfer
| Date | January 5, 2026 |
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| Consideration | $1,750,000 |
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| Deed reference | liber 57671, folio 0429 |
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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 175% above the median residential account in Montgomery County ($623,400, 248,486 accounts).
- The last transfer price is 2% above the current assessment.
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 161001849958
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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