11686 Old Frederick Rd, Marriottsville — tax account 1403296865
Single-family house built in 1971, 2,529 ft² on 7.13 acres in Marriottsville, Howard County, assessed at $788,700; last transfer February 3, 2026 for $880,000.
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 | 1403296865 |
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| Map, grid, parcel | Map 10 Grid 14 Parcel 281 · Lot 1 |
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| Location | 11686 Old Frederick Rd, Marriottsville MD 21104 |
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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 | 7.130 acres (310,583 ft²) |
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Structure
| Year built | 1971 |
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| Above-grade area | 2,529 ft² |
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| Style | 1 Story With Basement |
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| Building type | Standard Unit |
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| Construction | Frame |
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| Quality grade | 5 (on a scale of 1 to 9) |
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Assessment — January 2025
| Land | $322,100 |
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| Improvements | $466,600 |
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| Total | $788,700 |
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Last transfer
| Date | February 3, 2026 |
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| Consideration | $880,000 |
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| Deed reference | liber 04894, folio 0131 |
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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 16% above the median residential account in Howard County ($681,000, 62,119 accounts).
- The last transfer price is 12% 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 1403296865
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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