20507 Addenbrook Way, Gaithersburg — tax account 160102967687
Single-family house built in 1993, 3,426 ft² on 0.24 acres in Gaithersburg, Montgomery County, assessed at $721,400; last transfer September 26, 2025 for $835,525.
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 | 160102967687 |
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| Map, grid, parcel | Map GU34 · Block X Lot 4 |
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| Location | 20507 Addenbrook Way, Gaithersburg MD 20879 |
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| Jurisdiction | Montgomery County |
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| Subdivision | Goshen Estates |
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| Plat | 18528 |
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Land
| Land use | Residential (R) |
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| Zoning | R200 |
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| Acreage | 0.242 acres (10,542 ft²) |
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Structure
| Year built | 1993 |
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| Above-grade area | 3,426 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 — October 2023
| Land | $165,500 |
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| Improvements | $555,900 |
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| Total | $721,400 |
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| Homestead qualification code | 1 |
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Last transfer
| Date | September 26, 2025 |
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| Consideration | $835,525 |
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| Deed reference | liber 16808, folio 0207 |
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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 16% above the median residential account in Montgomery County ($623,400, 248,486 accounts).
- The last transfer price is 16% 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 160102967687
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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