4018 Holly Knoll Dr, Glen Arm — tax account 04101600009289
Single-family house built in 1979, 2,752 ft² on 1.92 acres in Glen Arm, Baltimore County, assessed at $787,000; last transfer November 14, 2025 for $866,000.
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 | 04101600009289 |
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| Map, grid, parcel | Map 44 Grid 20 Parcel 69 · Lot 24 |
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| Location | 4018 Holly Knoll Dr, Glen Arm MD 21057 |
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| Jurisdiction | Baltimore County |
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| Plat | 2 |
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Land
| Land use | Residential (R) |
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| Acreage | 1.920 acres (83,635 ft²) |
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Structure
| Year built | 1979 |
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| Above-grade area | 2,752 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 | 5 (on a scale of 1 to 9) |
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Assessment — December 2025
| Land | $229,300 |
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| Improvements | $557,700 |
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| Total | $787,000 |
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Last transfer
| Date | November 14, 2025 |
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| Consideration | $866,000 |
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| Deed reference | liber 08907, folio 0790 |
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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 163% above the median residential account in Baltimore County ($299,400, 240,976 accounts).
- The last transfer price is 10% 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 04101600009289
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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