121 Congressional Ln, Rockville — tax account 160403158813
Commercial built in 1970, 53,128 ft² on 0.23 acres in Rockville, Montgomery County, assessed at $7,000,000; last transfer March 13, 2026 for $7,000,000.
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 | 160403158813 |
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| Map, grid, parcel | Map GQ56 · Block O Lot 12A |
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| Location | 121 Congressional Ln, Rockville MD 20852 |
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| Jurisdiction | Montgomery County |
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| Subdivision | Montrose |
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| Plat | 20222 |
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Land
| Land use | Commercial (C) |
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| Zoning | MXCD |
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| Acreage | 0.234 acres (10,193 ft²) |
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Structure
| Year built | 1970 |
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| Above-grade area | 53,128 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 | 6 |
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Assessment — August 2023
| Land | $5,968,100 |
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| Improvements | $1,031,900 |
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| Total | $7,000,000 |
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Last transfer
| Date | March 13, 2026 |
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| Consideration | $7,000,000 |
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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 369% above the median commercial account in Montgomery County ($1,492,550, 3,736 accounts).
- The last transfer price is 0% 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 160403158813
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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