Est. $2,570 per month, based on comparable rentals
Sale and tax history for 20909 Brooke Knolls Rd
Sale History
Tax History
Date
Event
Price
Public Records
Apr 15, 2026
Sold
$500,000
$316/sq ft
BRIGHT MLS #MDMC2220414
Apr 9, 2026
Price Changed
$500,000
$316/sq ft
Apr 8, 2026
Sold
$500,000
$316/sq ft
Mar 25, 2026
Pending
—
Mar 25, 2026
Listed
$525,000
$332/sq ft
Public Records
Jun 5, 1972
Sold
$43,000
$27/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$5,093 (+7.6%)
$245,000 + $215,800
$460,800
2024
$4,733 (+6.7%)
2023
$4,437 (+655.6%)
2022
$587 (+10.4%)
$245,000 + $147,600
$392,600
2021
$532 (−8.9%)
2020
$584 (−85.5%)
2019
$4,012 (+96.9%)
$245,000 + $139,800
$384,800
2018
$2,038 (+2.2%)
2017
$1,994 (+6.5%)
$245,000 + $134,100
$379,100
2015
$1,873 (−13.1%)
$245,000 + $102,700
$347,700
2014
$2,156 (+28.5%)
2013
$1,677 (−33.8%)
2012
$2,533 (+26.9%)
2011
$1,996
2010
$1,996 (−22.8%)
2009
$2,585
Public record
Public record
Zoning
Beds
—
Baths
2
Stories
1
Lot width
—
Lot depth
—
Lot size
0.65 Acres
Year renovated
—
Sq. Ft.
1,582
Year built
1964
Style
Single Family Residential
County
Montgomery County
APN
01 00005786
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Jul 18, 2026.
R-200
URC
Residential - 200 Zone
The intent of the R-200 zone is to provide designated areas of the County for residential uses with a minimum lot size of 20,000 square feet. The predominant use is residential in a detached house.
Zone overlays
Upper Rock Creek Overlay Zone
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
Property details
Parking
Parking Information
# of Attached Garage Spaces: 2
Garage Features: Garage - Side Entry, Oversized, Inside Access
# of Total Garage and Parking Spaces: 2
Has Garage
# of Garage Spaces: 2
Attached Garage, Driveway, Off Street
Interior
Bedroom Information
# of Bedrooms On 1st Upper Level: 3
Bathroom Information
# of Bathrooms (Full) On 1st Upper Level: 2
# of Bathrooms (Full) On All Upper Levels: 2
# of Bathrooms (Full): 2
Interior Information
Living Area Sq.Ft. Source: Assessor
Fireplace Information
Has Fireplace
# of Fireplaces: 1
Basement Information
Basement: Yes
Partially Finished
Exterior
Property Information
Total Below Grade Sq. Ft.: 728
Front Foot Fee Payment Frequency: Annually
Improvement Assessed Value: $215,800
Ownership Interest: Fee Simple
Year Built Source: Assessor
Building Information
Construction Materials: Brick
Foundation Details: Slab
Other Structures: Above Grade, Below Grade
Structure Type: Detached
Lot Information
Tidal Water: No
Land Information
Land Assessed Value: $245,000
Above Grade Information
Finished Sq.Ft.: 1,342
Finished Sq.Ft. Source: Assessor
Below Grade Information
Unfinished Sq.Ft.: 488
Unfinished Sq.Ft. Source: Assessor
Finished Sq.Ft.: 240
Finished Sq.Ft. Source: Assessor
Financial
Tax Information
County Tax: $5,043
Tax Assessed Value: $460,800
Tax Year: 2025
Tax Annual Amount: $5,785
Assessments Information
Year Assessed: 2026
Utilities
Utilities Information
Cooling Type: Window Unit(s)
Cooling Fuel: Electric
Baseboard - Hot Water
Heating Fuel: Oil
Hot Water: Oil
Sewer Septic: Private Septic Tank
Water Source: Well
Location
School Information
Elementary School: LAYTONSVILLE
Middle Or Junior School: GAITHERSBURG
High School: GAITHERSBURG
School District Name: MONTGOMERY COUNTY PUBLIC SCHOOLS
Elementary School Source: Listing Agent
Middle School Source: Listing Agent
High School Source: Listing Agent
School District Source: Listing Agent
Location Information
Outside City Limits
Directions: Woodfield Rd to Warfield Turn Rt. Warfield to Dorsey Turn Rt. Dorsey to Brooke Knolls Turn Lt. Follow to 20909 Brooke Knolls on the Rt side of Rd.
Public facts
Beds: —
Baths: 2.0
Sq. Ft.: 1,582
Stories: 1.0
Lot Size: 0.65 acres
Style: Single Family Residential
Year Built: 1964
Year Renovated: —
County: Montgomery County
APN: 01 00005786
Home facts updated by county records on Jul 17, 2026
Other
Listing Information
Automatically Close on Close Date
Around this home
Schools
Laytonsville Elementary School
Public K-5 • Assigned • 0.5mi
7/10
Gaithersburg Middle School
Public 6-8 • Assigned • 4.6mi
4/10
Gaithersburg High School
Public 9-12 • Assigned • 5.4mi
3/10
Provided by GreatSchools
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
14% chance of strong winds in next 30 years
2/10 Air Factor
1 unhealthy days expected this year, 3 days in 30 years
Provided by First Street
Historical weather
Gaithersburg, MD • 20882
Average low and high temperatures (°F)
36
22
41
26
60
38
68
47
72
53
82
62
87
70
79
61
76
59
67
46
56
39
42
28
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 9.2 hours in
June and 4.2 hours in December, placing it below the
U.S. average for solar exposure.
9.2 hrs
4.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$600,000 – $726,000
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