21 Mills Rd is a 1,182 square foot house on a 0.25 acre lot with 1 bathroom. - it last sold on November 18, 2003 for $256,000. Based on Redfin's Gaithersburg data, we estimate the home's value is $440,522.
Single-familyProperty Type
1956Year Built
0.25 acresLot Size
$373Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$440,522
$185K since sold in November 2003$3,000 since October
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 13.9% lower than the average sale price ($512K) of 6 comparable homes.
Home facts updated by county records on Oct 14, 2026
Around this home
Schools
Harriet R. Tubman Elementary
Public PreK-5 • Assigned • 1.2mi
5/10
Forest Oak Middle School
Public 6-8 • Assigned • 1.4mi
5/10
Gaithersburg High School
Public 9-12 • Assigned • 0.3mi
3/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
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