433 E Diamond Ave, Gaithersburg — tax account 160901817064
Industrial built in 1979, 26,656 ft² on 1.51 acres in Gaithersburg, Montgomery County, assessed at $3,089,700; last transfer January 7, 2026 for $5,230,227.
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 | 160901817064 |
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| Map, grid, parcel | Map FT56 Parcel N061 |
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| Location | 433 E Diamond Ave, Gaithersburg MD 20877 |
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| Jurisdiction | Montgomery County |
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| Subdivision | Gaithersburg Town |
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Land
| Land use | Industrial (I) |
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| Zoning | CBD |
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| Acreage | 1.509 acres (65,732 ft²) |
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Structure
| Year built | 1979 |
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| Above-grade area | 26,656 ft² |
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| Style | INDUSTRY Light Manufacturing |
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| Building type | INDUSTRY Light Manufacturing |
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| Quality grade | 4 (on a scale of 1 to 9) |
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| Stories | 1 |
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Assessment — September 2023
| Land | $1,187,200 |
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| Improvements | $1,902,500 |
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| Total | $3,089,700 |
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Last transfer
| Date | January 7, 2026 |
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| Consideration | $5,230,227 |
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| Deed reference | liber 54436, folio 0230 |
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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 50% above the median industrial account in Montgomery County ($2,063,200, 1,342 accounts).
- The last transfer price is 69% 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 160901817064
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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