This home's estimate is 4.9% lower than the average sale price ($495K) of 6 comparable homes.
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- Property details
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- Climate
21 Mills Rd, Gaithersburg, MD 20877
About this home
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Market trends in 20877, MD
Last updated August 2026
Buyer's Market
Seller's Market
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Provided by Redfin
Sale history for 21 Mills Rd
$217/sq ft
$36/sq ft
Tax history for 21 Mills Rd
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
R-90
Medium Density Residential District
The R-90 Zone is intended to provide for medium-density residential areas primarily with single-family detached homes.Include but are not limited to:
- Religious facility
- Day care facility
- Housing-Single unit
- Housing-Other
- Public service
Property details
Interior
- Bathroom Information
- # of Full Baths: 1
- Heating & Cooling
- Air Conditioning Type: Split System
- Heating Type: Hot Air
- Fireplace Information
- # of Fireplaces: 2
- Fireplace Type: 1 Story
- Has Fireplace
Exterior
- Exterior Information
- Building Construction Quality: Average
- Exterior Wall: Aluminum/Vinyl
- Building Type: Single Family
- Property Information
- Subdivision Name: BROWNS ADD
- Living Sq. Ft: 1,182
- Building Sq. Ft: 1,182
- # of Stories: 1
- Stories Type: 1 Story With Basement
- Legal Description: PT LT 10 BROWNS ADD GAITHERSBURG
- Lot Information
- # of Buildings: 1
- Land Sq. Ft: 10,950
- Legal Lot Number: 9
- Legal Block Number: 1
- Municipality Name: GAITHERSBURG
- Acres: 0.2514
- Zoning Code: R90
- County Use Description: SINGLE FAMILY DETACH
- State Use Description: RESIDENTIAL
- Utility Information
- Sewer Type: Public
Financial
- Assessor Information
- Assessment Year: 2026
- Tax District County: 09
Public facts
- Beds: —
- Baths: 1.0
- Sq. Ft.: 1,182
- Stories: 1.0
- Lot Size: 0.25 acres
- Style: Single Family Residential
- Year Built: 1956
- Year Renovated: —
- County: Montgomery County
- APN: 09 00826234
Around this home
Schools
Public PreK-5 • Assigned • 1.2mi
Public 6-8 • Assigned • 1.4mi
Public 9-12 • Assigned • 0.3mi
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
- Gaithersburg, MD, is known for its diverse community, historic landmarks like the Gaithersburg Community Museum, and modern developments like the Kentlands. It combines a rich heritage with thriving shopping, dining, and recreational options, making...it a vibrant suburban hub in Montgomery County.4 weeks ago • GaithersburgWas this helpful?
Climate risks
Minimal risk of a flood reaching the building in the next 30 years
Unlikely to be in a wildfire in next 30 years
7 days above 102° expected this year, 16 days in 30 years
12% chance of strong winds in next 30 years
2 unhealthy days expected this year, 3 days in 30 years
Sun exposure
In this area, properties receive around 9.3 hours in June and 4.1 hours in December, placing it below the U.S. average for solar exposure.
Nearby similar homes
New listings for sale in 20877
Home values near 21 Mills Rd
| Address | Redfin Estimate |
|---|---|
4 Beds | 2 Baths | 1686 Sq. Ft. | $595,182 |
3 Beds | 2 Baths | 1110 Sq. Ft. | $513,558 |
| Address | Redfin Estimate |
|---|---|
3 Beds | 1.5 Baths | 1140 Sq. Ft. | $482,636 |
- Beds | 1 Baths | 1784 Sq. Ft. | $534,302 |
| Address | Redfin Estimate |
|---|---|
- Beds | 1.5 Baths | 1462 Sq. Ft. | $459,940 |
3 Beds | 2 Baths | 1820 Sq. Ft. | $553,999 |
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