21815 Slidell Rd is a 1,768 square foot house on a 1.19 acre lot with 2 bathrooms. - it last sold on March 16, 1994 for $160,000. Based on Redfin's Boyds data, we estimate the home's value is $600,728.
Single-familyProperty Type
1989Year Built
1.19 acresLot Size
$340Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$600,728
$441K since sold in March 1994$4,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 1.3% higher than the average sale price ($593K) of 6 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
AR
Agricultural Reserve Zone
The intent of the AR zone is to promote agriculture as the primary land use in areas of the County designated for agricultural preservation in the general plan, the Functional Master Plan for Preservation of Agriculture and Rural Open Space, and other current or future master plans. The AR zone accomplishes this intent by providing large areas of generally contiguous properties suitable for agricultural and related uses and permitting the transfer of development rights from properties in this zone to properties in designated receiving areas; Agriculture is the preferred use in the AR zone. All agricultural operations are permitted at any time, including the operation of farm machinery. An agricultural use cannot be restricted on the grounds that it interferes with other uses permitted in the zone but uses that are not exclusively agricultural in nature must satisfy additional use standards or the conditional use approval process; The intent of the child lot option in the AR zone is to facilitate the continuation of the family farming unit and to otherwise meet the purposes of the AR zone.
Permitted uses
Include but are not limited to:
Agriculture
Housing-Single unit
Infrastructure-Other
Public service
Transportation-Other
Aug 22, 1996 • Final
Sediment control
Grading
Dec 23, 1988 • Final
Building residential
New construction
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: 580
Basement Finish: Finished
Basement Type: Finished
Bathroom Information
# of Full Baths: 2
Heating & Cooling
Air Conditioning Type: Split System
Heating Type: Hot Air
Exterior
Exterior Information
Building Style Type: Split Foyer
Building Construction Quality: Average
Exterior Wall: Frame
Building Type: Single Family
Property Information
Subdivision Name: LAND CALLED CONCLUSION CLARKSB
Living Sq. Ft: 1,768
Building Sq. Ft: 1,768
Stories Type: Split Foyer
Legal Description: CONCLUSION
Parking & Garage Information
Parking Type: Detached Brick Garage
Garage/Parking Sq. Ft: 1,116
Garage / Carport Type: Detached Brick
Lot Information
# of Buildings: 1
Land Sq. Ft: 51,836
Legal Lot Number: 410
Legal Block Number: PAR
Acres: 1.19
Zoning Code: AR
County Use Description: SINGLE FAMILY DETACH
State Use Description: RESIDENTIAL
Utility Information
Sewer Type: Private
Financial
Assessor Information
Assessment Year: 2026
Tax District County: 02
Public facts
Beds: —
Baths: 2.0
Sq. Ft.: 1,768
Stories: —
Lot Size: 1.19 acres
Style: Single Family Residential
Year Built: 1989
Year Renovated: —
County: Montgomery County
APN: 02 00024107
Home facts updated by county records on Jul 17, 2026
Around this home
Schools
Places
Transit
William B. Gibbs Jr. Elementary School
Public PreK-5 • Assigned • 3.7mi
7/10
Neelsville Middle School
Public 6-8 • Assigned • 4.9mi
4/10
Seneca Valley High School
Public 9-12 • Assigned • 4.4mi
4/10
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
4/10 Fire Factor
3% chance of being in a wildfire in next 30 years
5/10 Heat Factor
7 days above 102° expected this year, 16 days in 30 years
4/10 Wind Factor
8% chance of strong winds in next 30 years
2/10 Air Factor
1 unhealthy days expected this year, 2 days in 30 years
Provided by First Street
Historical weather
Boyds, MD • 20841
Average low and high temperatures (°F)
38
22
43
27
62
39
69
48
73
55
84
64
89
71
83
64
78
59
69
46
58
38
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 4.1 hours in December, placing it below the
U.S. average for solar exposure.
9.2 hrs
4.1 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$571,000 – $691,000
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