11817 Quince Mill Dr, Gaithersburg — tax account 160602798320
Single-family house built in 1989, 3,492 ft² on 0.34 acres in Gaithersburg, Montgomery County, assessed at $809,400; last transfer May 7, 2026 for $1,075,000.
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 | 160602798320 |
|---|
| Map, grid, parcel | Map ES56 · Block P Lot 15 |
|---|
| Location | 11817 Quince Mill Dr, Gaithersburg MD 20878 |
|---|
| Jurisdiction | Montgomery County |
|---|
| Subdivision | Quince Orchard Knolls |
|---|
Land
| Land use | Residential (R) |
|---|
| Zoning | R200 |
|---|
| Acreage | 0.340 acres (14,810 ft²) |
|---|
Structure
| Year built | 1989 |
|---|
| Above-grade area | 3,492 ft² |
|---|
| Style | 2 Story With Basement |
|---|
| Building type | Standard Unit |
|---|
| Construction | Frame |
|---|
| Quality grade | 6 (on a scale of 1 to 9) |
|---|
Assessment — October 2024
| Land | $248,300 |
|---|
| Improvements | $561,100 |
|---|
| Total | $809,400 |
|---|
Last transfer
| Date | May 7, 2026 |
|---|
| Consideration | $1,075,000 |
|---|
| Deed reference | liber 69037, folio 0201 |
|---|
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 30% above the median residential account in Montgomery County ($623,400, 248,486 accounts).
- The last transfer price is 33% 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.

The report for account 160602798320
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