4131 Green Valley Rd, Monrovia — tax account 1109318984
Commercial on 11.27 acres in Monrovia, Frederick County, assessed at $2,038,300; last transfer July 17, 2025 for $1,600,000.
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 | 1109318984 |
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| Map, grid, parcel | Map 97 Grid 5 Parcel 248 |
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| Location | 4131 Green Valley Rd, Monrovia MD 21770 |
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| Jurisdiction | Frederick County |
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Land
| Land use | Commercial (C) |
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| Zoning | GC |
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| Acreage | 11.270 acres (490,921 ft²) |
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Assessment — October 2024
| Land | $2,038,300 |
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| Total | $2,038,300 |
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Last transfer
| Date | July 17, 2025 |
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| Consideration | $1,600,000 |
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| Deed reference | liber 16367, folio 0376 |
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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 175% above the median commercial account in Frederick County ($741,800, 2,598 accounts).
- The last transfer price is 22% 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 1109318984
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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