18520 Reliant Dr, Gaithersburg — tax account 160103265166
Single-family house built in 2001, 3,476 ft² on 0.45 acres in Gaithersburg, Montgomery County, assessed at $813,100; last transfer January 30, 2026 for $871,547.
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 | 160103265166 |
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| Map, grid, parcel | Map GT34 · Block B Lot 49 |
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| Location | 18520 Reliant Dr, Gaithersburg MD 20879 |
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| Jurisdiction | Montgomery County |
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| Subdivision | Redland Park |
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| Plat | 21128 |
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Land
| Land use | Residential (R) |
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| Zoning | RE1 |
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| Acreage | 0.452 acres (19,689 ft²) |
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Structure
| Year built | 2001 |
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| Above-grade area | 3,476 ft² |
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| Style | 2 Story With Basement |
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| Building type | Standard Unit |
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| Construction | Siding |
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| Quality grade | 5 (on a scale of 1 to 9) |
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Assessment — October 2023
| Land | $239,900 |
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| Improvements | $573,200 |
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| Total | $813,100 |
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Last transfer
| Date | January 30, 2026 |
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| Consideration | $871,547 |
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| Deed reference | liber 58436, folio 0396 |
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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 30% above the median residential account in Montgomery County ($623,400, 248,486 accounts).
- The last transfer price is 7% 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 160103265166
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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