4221 31ST St, Mount Rainier — tax account 17171977842
Single-family house built in 1919, 3,168 ft² on 0.20 acres in Mount Rainier, Prince George's County, assessed at $722,300; last transfer November 14, 2025 for $550,000.
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 | 17171977842 |
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| Map, grid, parcel | Map 49 Grid E2 · Block 10 |
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| Location | 4221 31ST St, Mount Rainier MD 20712 |
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| Jurisdiction | Prince George's County |
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| Subdivision | Mount Rainier |
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| Plat | E-1079 |
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Land
| Land use | Commercial/Residential (CR) |
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| Zoning | RSF65 |
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| Acreage | 0.196 acres (8,538 ft²) |
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Structure
| Year built | 1919 |
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| Above-grade area | 3,168 ft² |
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| Style | 2.5 Story With Basement |
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| Building type | Standard Unit |
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| Construction | Frame |
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| Quality grade | 3 (on a scale of 1 to 9) |
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| Units | 3 |
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Assessment — December 2023
| Land | $137,600 |
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| Improvements | $584,700 |
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| Total | $722,300 |
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Last transfer
| Date | November 14, 2025 |
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| Consideration | $550,000 |
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| Deed reference | liber 30839, folio 0156 |
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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 107% above the median commercial/residential account in Prince George's County ($348,900, 406 accounts).
- The last transfer price is 24% below the current assessment.
- Built before 1978: Maryland requires rental units built before 1978 to be registered with MDE and to pass a lead-risk reduction inspection.
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 17171977842
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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