4853 Castlebridge Rd, Ellicott City — tax account 1403345327
Single-family house built in 2007, 6,465 ft² on 1.04 acres in Ellicott City, Howard County, assessed at $1,902,000; last transfer January 22, 2026 for $2,300,000.
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 | 1403345327 |
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| Map, grid, parcel | Map 29 Grid 4 Parcel 20 · Block 9999 Lot 27 |
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| Location | 4853 Castlebridge Rd, Ellicott City MD 21042 |
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| Jurisdiction | Howard County |
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| Subdivision | Riverwood |
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| Plat | 18034 |
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Land
| Land use | Residential (R) |
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| Zoning | RCDEO |
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| Acreage | 1.040 acres (45,302 ft²) |
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Structure
| Year built | 2007 |
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| Above-grade area | 6,465 ft² |
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| Style | 2 Story With Basement |
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| Building type | Standard Unit |
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| Construction | Frame |
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| Quality grade | 6 (on a scale of 1 to 9) |
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Assessment — January 2025
| Land | $361,600 |
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| Improvements | $1,540,400 |
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| Total | $1,902,000 |
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Last transfer
| Date | January 22, 2026 |
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| Consideration | $2,300,000 |
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| Deed reference | liber 18383, folio 0321 |
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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 179% above the median residential account in Howard County ($681,000, 62,119 accounts).
- The last transfer price is 21% 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 1403345327
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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