4900 Downland Ter, Olney — tax account 160803098478
Single-family house built in 1998, 3,572 ft² on 0.32 acres in Olney, Montgomery County, assessed at $1,061,800; last transfer October 27, 2025 for $1,100,000.
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 | 160803098478 |
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| Map, grid, parcel | Map HT12 · Block A Lot 14 |
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| Location | 4900 Downland Ter, Olney MD 20832 |
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| Jurisdiction | Montgomery County |
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| Subdivision | Barnsley Manor Estates |
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| Plat | 19684 |
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Land
| Land use | Residential (R) |
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| Zoning | RE1 |
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| Acreage | 0.315 acres (13,721 ft²) |
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Structure
| Year built | 1998 |
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| Above-grade area | 3,572 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 — January 2026
| Land | $285,300 |
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| Improvements | $776,500 |
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| Total | $1,061,800 |
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| Homestead qualification code | 1 |
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Last transfer
| Date | October 27, 2025 |
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| Consideration | $1,100,000 |
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| Deed reference | liber 16390, folio 0787 |
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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 70% above the median residential account in Montgomery County ($623,400, 248,486 accounts).
- The last transfer price is 4% 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 160803098478
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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