17220 Larosa Dr, Derwood — tax account 160901957810

Single-family house built in 1981, 2,992 ft² on 0.29 acres in Derwood, Montgomery County, assessed at $684,600; last transfer August 27, 2025 for $795,000.

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	160901957810
Map, grid, parcel	Map GT34 · Block G Lot 77
Location	17220 Larosa Dr, Derwood MD 20855
Jurisdiction	Montgomery County
Subdivision	Mill Creek South

Land

Land use	Residential (R)
Zoning	R90
Acreage	0.291 acres (12,676 ft²)

Structure

Year built	1981
Above-grade area	2,992 ft²
Style	2 Story With Basement
Building type	Standard Unit
Construction	Siding
Quality grade	4 (on a scale of 1 to 9)

Assessment — October 2023

Land	$250,000
Improvements	$434,600
Total	$684,600

Last transfer

Date	August 27, 2025
Consideration	$795,000
Deed reference	liber 18230, folio 0365

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 10% above the median residential account in Montgomery County ($623,400, 248,486 accounts).
The last transfer price is 16% 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 160901957810

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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