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Market trends in 21822, MD
Last updated July 2026
Buyer's Market
Seller's Market
Seller's market
Sale-to-List Price
97.1%
+0.4% MoM
Median sale price
$330K
$75 MoM
Avg. days on market
51d
74 days MoM
Recently sold homes
7
0 MoM
Provided by Redfin
Sale history for 3650 Allen Rd
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$2,525 (+2.4%)
2024
$2,465 (+5.0%)
2023
$2,348 (+4.8%)
$56,200 + $189,000
$245,200
2022
$2,241 (+8.0%)
2021
$2,075 (−0.4%)
2020
$2,083 (−0.8%)
$56,200 + $138,500
$194,700
2019
$2,099
2018
$2,099
$56,200 + $135,700
$191,900
2017
$2,099 (−3.5%)
$56,200 + $135,700
$191,900
2016
$2,176
$63,200 + $133,800
$197,000
2015
$2,176 (+10.2%)
$63,200 + $133,800
$197,000
2014
$1,975 (+27.5%)
2012
$1,549 (+9.9%)
2011
$1,409
2010
$1,409 (+15.1%)
2009
$1,224
Tax history for 3650 Allen Rd
Year
Property tax
Land + Additions
Assessment*
2025
$2,525 (+2.4%)
2024
$2,465 (+5.0%)
2023
$2,348 (+4.8%)
$56,200 + $189,000
$245,200
2022
$2,241 (+8.0%)
2021
$2,075 (−0.4%)
2020
$2,083 (−0.8%)
$56,200 + $138,500
$194,700
2019
$2,099
2018
$2,099
$56,200 + $135,700
$191,900
2017
$2,099 (−3.5%)
$56,200 + $135,700
$191,900
2016
$2,176
$63,200 + $133,800
$197,000
2015
$2,176 (+10.2%)
$63,200 + $133,800
$197,000
2014
$1,975 (+27.5%)
2012
$1,549 (+9.9%)
2011
$1,409
2010
$1,409 (+15.1%)
2009
$1,224
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
A - 1
Agriculture-Rural District
The purpose of the A-1 Agriculture-Rural District is to preserve areas of the County that are predominantly agricultural and to maintain the land base necessary for sustainable agricultural activity.; This district is designed to protect agriculture from incompatible residential, commercial and industrial development.; Where low-intensity residential development is allowed in the Agriculture-Rural District, density and design standards shall ensure natural resource protection and preservation of rural character.; This district shall be characterized by a mix of agricultural activities, farms and farmland, forests, open spaces and low intensity residential development or small cluster developments with significant associated open spaces.