51 Monroe St, Rockville — tax account 160401621196
Commercial built in 1974, 206,056 ft² on 1.21 acres in Rockville, Montgomery County, assessed at $33,110,400; last transfer May 11, 2026 for $10,260,000.
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 | 160401621196 |
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| Map, grid, parcel | Map GR34 Parcel N302 |
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| Location | 51 Monroe St, Rockville MD 20850 |
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| Jurisdiction | Montgomery County |
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| Subdivision | Rockville Town A-Z |
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Land
| Land use | Commercial (C) |
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| Zoning | MXTD |
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| Acreage | 1.210 acres (52,708 ft²) |
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Structure
| Year built | 1974 |
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| Above-grade area | 206,056 ft² |
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| Style | OFFICE Office Building |
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| Building type | OFFICE Office Building |
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| Quality grade | 3 (on a scale of 1 to 9) |
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| Stories | 18 |
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Assessment — August 2023
| Land | $6,957,300 |
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| Improvements | $26,153,100 |
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| Total | $33,110,400 |
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Last transfer
| Date | May 11, 2026 |
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| Consideration | $10,260,000 |
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| Deed reference | liber 52961, folio 0062 |
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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 2118% above the median commercial account in Montgomery County ($1,492,550, 3,736 accounts).
- The last transfer price is 69% 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 160401621196
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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