307 Carr Ave, Rockville — tax account 160400233313
Single-family house built in 1953, 1,509 ft² on 0.24 acres in Rockville, Montgomery County, assessed at $718,400; last transfer September 22, 2025 for $687,000.
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 | 160400233313 |
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| Map, grid, parcel | Map GR12 · Block 16 Lot 4 |
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| Location | 307 Carr Ave, Rockville MD 20850 |
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| Jurisdiction | Montgomery County |
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| Subdivision | West End Park |
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Land
| Land use | Residential (R) |
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| Zoning | R60 |
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| Acreage | 0.239 acres (10,411 ft²) |
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Structure
| Year built | 1953 |
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| Above-grade area | 1,509 ft² |
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| Style | 1.5 Story With Basement |
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| Building type | Standard Unit |
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| Construction | Brick |
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| Quality grade | 4 (on a scale of 1 to 9) |
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Assessment — October 2024
| Land | $390,600 |
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| Improvements | $327,800 |
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| Total | $718,400 |
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| Homestead qualification code | 1 |
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Last transfer
| Date | September 22, 2025 |
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| Consideration | $687,000 |
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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 15% above the median residential account in Montgomery County ($623,400, 248,486 accounts).
- The last transfer price is 4% 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 160400233313
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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