815 Tanley Rd is a 3,218 square foot house on a 0.93 acre lot with 4 bathrooms. Based on Redfin's Silver Spring data, we estimate the home's value is $723,105.
Single-familyProperty Type
2000Year Built
0.93 acresLot Size
$225Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$723,105
$3,000 since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 17.7% lower than the average sale price ($879K) of 5 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$436 (+72.7%)
$255,500 + $337,500
$593,000
2024
$253 (+0.6%)
2023
$251 (−5.6%)
2022
$266 (+3.1%)
$255,500 + $226,100
$481,600
2021
$258 (+15.7%)
2020
$223 (+4.5%)
2019
$213 (+4.0%)
$255,500 + $213,000
$468,500
2018
$205
$255,500 + $213,000
$468,500
2017
$205 (−3.7%)
$255,500 + $270,000
$525,500
2015
$213 (−0.4%)
$222,300 + $206,400
$428,700
2014
$214
2013
$214
2012
$214 (+1.9%)
2011
$210
2010
$210
Tax history for 815 Tanley Rd
Year
Property tax
Land + Additions
Assessment*
2025
$436 (+72.7%)
$255,500 + $337,500
$593,000
2024
$253 (+0.6%)
2023
$251 (−5.6%)
2022
$266 (+3.1%)
$255,500 + $226,100
$481,600
2021
$258 (+15.7%)
2020
$223 (+4.5%)
2019
$213 (+4.0%)
$255,500 + $213,000
$468,500
2018
$205
$255,500 + $213,000
$468,500
2017
$205 (−3.7%)
$255,500 + $270,000
$525,500
2015
$213 (−0.4%)
$222,300 + $206,400
$428,700
2014
$214
2013
$214
2012
$214 (+1.9%)
2011
$210
2010
$210
*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, 2000 • Active
Fire alarm
Fire sprinkler
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
Bathroom Information
# of Full Baths: 4
Heating & Cooling
Air Conditioning Type: Split System
Heating Type: Hot Air
Exterior
Exterior Information
Building Construction Quality: Fair
Exterior Wall: Aluminum/Vinyl
Building Type: Single Family
Property Information
Subdivision Name: PK GORDO NS ADD
Living Sq. Ft: 3,218
Building Sq. Ft: 3,218
# of Stories: 1
Stories Type: 1
Legal Description: ROCKY BROOK PK GORDO NS ADD
Lot Information
# of Buildings: 1
Land Sq. Ft: 40,507
Legal Lot Number: P19
Legal Block Number: 1
Acres: 0.9299
Zoning Code: RE1
County Use Description: PARK-GENL RECREATION
State Use Description: EXEMPT
Financial
Assessor Information
Assessment Year: 2026
Tax District County: 05
Public facts
Beds: —
Baths: 4.0
Sq. Ft.: 3,218
Stories: 1.0
Lot Size: 0.93 acres
Style: Single Family Residential
Year Built: 2000
Year Renovated: —
County: Montgomery County
APN: 05 02628810
Home facts updated by county records on Jul 17, 2026
Around this home
Schools
Burnt Mills Elementary School
Public PreK-5 • Assigned • 0.9mi
5/10
Francis Scott Key Middle School
Public 6-8 • Assigned • 1.6mi
5/10
Springbrook High School
Public 9-12 • Assigned • 0.8mi
5/10
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
7/10 Heat Factor
7 days above 103° expected this year, 15 days in 30 years
4/10 Wind Factor
19% chance of strong winds in next 30 years
4/10 Air Factor
4 unhealthy days expected this year, 5 days in 30 years
Provided by First Street
Historical weather
Silver Spring, MD • 20904
Average low and high temperatures (°F)
37
23
43
28
62
39
70
48
74
55
85
65
89
70
81
62
78
60
68
46
57
39
44
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 4.3 hours in December, placing it below the
U.S. average for solar exposure.
9.2 hrs
4.3 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$687,000 – $832,000
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