11809 Triadelphia Rd, Ellicott City — tax account 1403289265
Single-family house built in 1969, 2,728 ft² on 1.00 acres in Ellicott City, Howard County, assessed at $705,600; last transfer August 25, 2025 for $879,000.
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 | 1403289265 |
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| Map, grid, parcel | Map 16 Grid 20 Parcel 238 · Lot 76 |
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| Location | 11809 Triadelphia Rd, Ellicott City MD 21042 |
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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 | RCDEO |
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| Acreage | 1.000 acres (43,560 ft²) |
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Structure
| Year built | 1969 |
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| Above-grade area | 2,728 ft² |
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| Style | 2 Story With Basement |
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| Building type | Standard Unit |
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| Construction | Siding |
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| Quality grade | 4 (on a scale of 1 to 9) |
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Assessment — January 2025
| Land | $301,200 |
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| Improvements | $404,400 |
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| Total | $705,600 |
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| Homestead qualification code | 1 |
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Last transfer
| Date | August 25, 2025 |
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| Consideration | $879,000 |
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| Deed reference | liber 22203, folio 0366 |
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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 close to the median residential account in Howard County ($681,000, 62,119 accounts).
- The last transfer price is 25% 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 1403289265
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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