12508 Over Ridge Rd, Potomac — tax account 160400129517
Single-family house built in 1962, 2,575 ft² on 0.86 acres in Potomac, Montgomery County, assessed at $1,131,200; last transfer March 3, 2026 for $1,275,000.
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 | 160400129517 |
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| Map, grid, parcel | Map FQ56 · Block 2 Lot 1 |
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| Location | 12508 Over Ridge Rd, Potomac MD 20854 |
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| Jurisdiction | Montgomery County |
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| Subdivision | Copenhaver |
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Land
| Land use | Residential (R) |
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| Zoning | R200 |
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| Acreage | 0.861 acres (37,505 ft²) |
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Structure
| Year built | 1962 |
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| Above-grade area | 2,575 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 — November 2023
| Land | $542,700 |
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| Improvements | $588,500 |
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| Total | $1,131,200 |
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Last transfer
| Date | March 3, 2026 |
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| Consideration | $1,275,000 |
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| Deed reference | liber 66455, folio 0491 |
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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 81% above the median residential account in Montgomery County ($623,400, 248,486 accounts).
- The last transfer price is 13% 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 160400129517
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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