12909 Glen Mill Rd is a 10,970 square foot house on a 0.95 acre lot with 9.5 bathrooms. Based on Redfin's Potomac data, we estimate the home's value is $2,811,004.
Single-familyProperty Type
2019Year Built
0.95 acresLot Size
$256Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,811,004
$20K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 43.8% higher than the average sale price ($1.96M) of 5 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
RE-1
Residential Estate - 1 Zone
The intent of the RE-1 zone is to provide designated areas of the County for large-lot residential uses. The predominant use is residential in a detached house. Optional method MPDU Development is applicable only for development that is served by public sewer service and where designated for sewer service in the applicable master plan.
Permitted uses
Include but are not limited to:
Agriculture-Other
Assembly/ meeting place
Housing-Single unit
Housing-Senior
Infrastructure-Other
Public service
Kennel
Transportation-Other
Park & open space
Mar 31, 2016 • Final
Electrical
Electrical
Sep 9, 2015 • Final
Electrical
Electrical
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Basement Information
Basement Sq. Ft: 2,980
Basement Finish: Finished
Basement Type: Finished
Bathroom Information
# of Full Baths: 8
# of 1/2 Baths: 3
Heating & Cooling
Air Conditioning Type: Split System
Heating Type: Hot Air
Fireplace Information
# of Fireplaces: 1
Fireplace Type: Gas/Log
Has Fireplace
Exterior
Exterior Information
Building Construction Quality: Luxury
Exterior Wall: Stucco
Building Type: Single Family
Pool Information
Pool Type: Concrete
Has Pool
Property Information
Subdivision Name: DENNIS SI MMONS ADD
Living Sq. Ft: 10,970
Building Sq. Ft: 11,910
# of Stories: 2
Stories Type: 2 Story With Basement
Legal Description: GLEN HILLS DENNIS SI MMONS ADD
Parking & Garage Information
Parking Type: Attached Stone Garage
Garage/Parking Sq. Ft: 940
Garage / Carport Type: Attached Stone
Lot Information
# of Buildings: 1
Land Sq. Ft: 41,306
Legal Lot Number: 4
Legal Block Number: A
Acres: 0.9483
Zoning Code: RE1
County Use Description: SINGLE FAMILY DETACH
State Use Description: RESIDENTIAL
Financial
Assessor Information
Assessment Year: 2026
Tax District County: 04
Public facts
Beds: —
Baths: 9.5
Sq. Ft.: 10,970
Stories: 2.0
Lot Size: 0.95 acres
Style: Single Family Residential
Year Built: 2019
Year Renovated: —
County: Montgomery County
APN: 04 00078601
Home facts updated by county records on Oct 14, 2026
Around this home
Schools
Wayside Elementary School
Public PreK-5 • Assigned • 1.4mi
10/10
Herbert Hoover Middle School
Public 6-8 • Assigned • 2.5mi
10/10
Winston Churchill High School
Public 9-12 • Assigned • 2.7mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
6/10 Heat Factor
7 days above 102° expected this year, 16 days in 30 years
4/10 Wind Factor
13% chance of strong winds in next 30 years
3/10 Air Factor
2 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Potomac, MD • 20854
Average low and high temperatures (°F)
38
23
44
28
62
39
70
48
74
55
84
65
89
70
81
63
79
60
69
47
58
40
44
29
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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.
9.3 hrs
4.1 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$2.67M – $3.23M
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