309 Grindstone Dr, Arnold — tax account 020379690223009

Single-family house built in 2007, 2,589 ft² on 0.25 acres in Arnold, Anne Arundel County, assessed at $753,100; last transfer February 6, 2026 for $850,000.

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	020379690223009
Map, grid, parcel	Map 40 Grid 14 Parcel 77 · Lot 7
Location	309 Grindstone Dr, Arnold MD 21012
Jurisdiction	Anne Arundel County
Subdivision	Stonecrest

Land

Land use	Residential (R)
Zoning	R2
Acreage	0.246 acres (10,716 ft²)

Structure

Year built	2007
Above-grade area	2,589 ft²
Style	1 Story With Basement
Building type	Standard Unit
Construction	Siding
Quality grade	4 (on a scale of 1 to 9)

Assessment — December 2024

Land	$211,100
Improvements	$542,000
Total	$753,100

Last transfer

Date	February 6, 2026
Consideration	$850,000
Deed reference	liber 38230, folio 0105

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 66% above the median residential account in Anne Arundel County ($454,400, 175,949 accounts).
The last transfer price is 13% 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.

First page of a sample Maryland Property Report

The report for account 020379690223009

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.

$19card · PDF within 24 h · you pay after receiving itSee the sample (PDF)

Order the report