Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$312,838$144 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $145,500 on Dec 3, 1998

8422 ALLISON LN

BALTIMORE, MD 21237
2
Baths
2,166 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$313K
$297K low$329K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$145,500 · Dec 3, 1998

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,239 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$271,800 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$250,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$293,600

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyBaltimore
Lot (acres)The size of the land the home sits on, from county records.0.28
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 216 ft²Porch · 216 ft²

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Red House Run Elementary SchoolC-
Elementary · Grades PK–5 · 0.3 mi
H
Overlea High SchoolD-
High · Grades 9–12 · 1.0 mi
M
Nottingham Middle SchoolD-
Middle · Grades 6–8 · 2.4 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21237These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.92
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.44

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.31,022
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,671 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$88,346
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$107,623
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.46 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

Owner Tools

Do you own this home?
Claim this home

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

8422 Allison Ln measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Costs less per square foot than 97% of homes in Baltimore County
  • Bigger than 88% of homes in Rosedale 21237
  • Has a bigger lot than 81% of homes in Rosedale 21237
  • Older than 76% of homes in Rosedale 21237

What homes are worth in Rosedale 21237

Each bar is how many homes fall in that price range. The marker is this home.

This home
$168K$620K

This home is worth more than 51% of homes in Rosedale 21237.

How it measures up in Rosedale 21237

The dot is this home. The mark in the middle is the typical home in Rosedale 21237.

Estimated value$312,838
CheaperTypical $311,393Pricier

Pricier than 51% of homes nearby

Price per ft²$144
CheaperTypical $214Pricier

Pricier than 4% of homes nearby

Living area2,166 ft²
SmallerTypical 1,364 ft²Bigger

Bigger than 88% of homes nearby

Lot size0.28 ac
SmallerTypical 0.16 acBigger

Bigger than 81% of homes nearby

Year built1955
OlderTypical 1978Newer

Newer than 24% of homes nearby

How 8422 Allison Ln ranks against every home in each area.
MeasureThis homeRosedale 21237Baltimore County
Estimated valuepricier than$312,83851% of homes38% of homes
Price per ft²pricier than$1444% of homes3% of homes
Living areabigger than2,166 ft²88% of homes79% of homes
Lot sizebigger than0.28 ac81% of homes73% of homes
Year builtnewer than195524% of homes33% of homes

About 8422 Allison Ln

How much is 8422 Allison Ln, Baltimore, MD worth?

The TopHap Estimate for 8422 Allison Ln, Baltimore, MD is $312,838 as of Sep 24, 2026. The likely range is $296,745 to $328,931. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 8422 Allison Ln, Baltimore, MD last sell?

8422 Allison Ln, Baltimore, MD last sold on Dec 3, 1998 for $145,500, according to the county's recorded deed.

How big is 8422 Allison Ln, Baltimore, MD?

8422 Allison Ln, Baltimore, MD has 2 bathrooms, 2,166 square feet of living space and a 0.28-acre lot.

When was 8422 Allison Ln, Baltimore, MD built?

8422 Allison Ln, Baltimore, MD was built in 1955, making it 71 years old. It is a conventional home. The building has 2 stories.

What schools serve 8422 Allison Ln, Baltimore, MD?

8422 Allison Ln, Baltimore, MD is assigned to Red House Run Elementary School (elementary), rated C-; Overlea High School (high), rated D-; Nottingham Middle School (middle), rated D-. All sit in Baltimore County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 8422 Allison Ln, Baltimore, MD compare to other homes in Rosedale 21237?

Among the 9,177 homes in Rosedale 21237, it is worth more than 51% of them ($312,838 against a typical $311,393), its price per square foot is higher than 4% of them ($144 against a typical $214), it is bigger than 88% of them (2,166 ft² against a typical 1,364 ft²), its lot is bigger than 81% of them (0.28 ac against a typical 0.16 ac) and it is newer than 24% of them (1955 against a typical 1978). Measured against all of Baltimore County, it is worth more than 38% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 8422 Allison Ln, Baltimore, MD?

The 2025 property tax bill for 8422 Allison Ln, Baltimore, MD was $4,239. The county assessed it at $271,800.

More homes on Allison Ln

Closest homes

More homes in Baltimore 21237

Assigned schools

Explore the area

See this home in context

Open 8422 Allison Ln on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map