13680 Triadelphia Mill Rd, Clarksville — tax account 1405371600
Single-family house built in 1979, 8,242 ft² on 12.01 acres in Clarksville, Howard County, assessed at $1,125,000; last transfer September 3, 2025 for $1,100,000.
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 | 1405371600 |
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| Map, grid, parcel | Map 28 Grid 20 Parcel 101 |
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| Location | 13680 Triadelphia Mill Rd, Clarksville MD 21029 |
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| Jurisdiction | Howard County |
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| Subdivision | Regulars |
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Land
| Land use | Residential (R) |
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| Zoning | RRDEO |
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| Acreage | 12.010 acres (523,156 ft²) |
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Structure
| Year built | 1979 |
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| Above-grade area | 8,242 ft² |
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| Style | 2 Story No Basement |
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| Building type | Split Level |
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| Construction | Brick |
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| Quality grade | 4 (on a scale of 1 to 9) |
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| Units | 2 |
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Assessment — January 2026
| Land | $596,500 |
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| Improvements | $528,500 |
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| Total | $1,125,000 |
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Last transfer
| Date | September 3, 2025 |
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| Consideration | $1,100,000 |
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| Deed reference | liber 12585, folio 0412 |
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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 65% above the median residential account in Howard County ($681,000, 62,119 accounts).
- The last transfer price is 2% below 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 1405371600
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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