25206 Bonny Brook Ln, Gaithersburg — tax account 161203278625

Single-family house built in 2002, 4,288 ft² on 0.97 acres in Gaithersburg, Montgomery County, assessed at $955,800; last transfer October 24, 2025 for $1,199,000.

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	161203278625
Map, grid, parcel	Map FX56 · Lot 81
Location	25206 Bonny Brook Ln, Gaithersburg MD 20882
Jurisdiction	Montgomery County
Subdivision	Seneca Springs
Plat	21271

Land

Land use	Residential (R)
Zoning	RE2C
Acreage	0.975 acres (42,471 ft²)

Structure

Year built	2002
Above-grade area	4,288 ft²
Style	2 Story With Basement
Building type	Standard Unit
Construction	Siding
Quality grade	6 (on a scale of 1 to 9)

Assessment — October 2024

Land	$230,300
Improvements	$725,500
Total	$955,800

Last transfer

Date	October 24, 2025
Consideration	$1,199,000
Deed reference	liber 41379, folio 0436

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 53% above the median residential account in Montgomery County ($623,400, 248,486 accounts).
The last transfer price is 25% 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 161203278625

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