Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$338,109$276 / 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 85How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $330,000 on Sep 16, 2025

27 N PROSPECT AVE

BALTIMORE, MD 21228
1
Baths
1,223 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1934
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$338K
$286K low$390K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$330,000 · Sep 16, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,509 (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.$253,733 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$243,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$274,200

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.7 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.1 percent flood zone

Scores 0–100; higher = greater projected risk.

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.0.13
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Radiant
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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 · 186 ft²Porch · 184 ft²

Transaction History(1)

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
Westowne Elementary SchoolB+
Elementary · Grades EE–5 · 0.6 mi
H
Catonsville High SchoolA-
High · Grades 9–12 · 1.5 mi
M
Arbutus Middle SchoolC+
Middle · Grades 6–8 · 2.2 mi

District: Baltimore County Public Schools

Neighborhood · ZIP 21228These 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.77
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.40

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.50,431
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,282 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$108,332
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$127,045
Average tempThe average temperature here across a full year.55°F
Annual precipHow much rain and melted snow falls here in a typical year.45 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

27 N Prospect Ave 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.

  • Worth less than 80% of homes in Catonsville 21228
  • Costs more per square foot than 76% of homes in Baltimore County
  • Smaller than 76% of homes in Catonsville 21228
  • Has a smaller lot than 73% of homes in Catonsville 21228
  • Older than 92% of homes in Baltimore County

What homes are worth in Catonsville 21228

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

This home
$242K$881K

This home is worth more than 20% of homes in Catonsville 21228.

How it measures up in Catonsville 21228

The dot is this home. The mark in the middle is the typical home in Catonsville 21228.

Estimated value$338,109
CheaperTypical $429,604Pricier

Pricier than 20% of homes nearby

Price per ft²$276
CheaperTypical $271Pricier

Pricier than 54% of homes nearby

Living area1,223 ft²
SmallerTypical 1,508 ft²Bigger

Bigger than 24% of homes nearby

Lot size0.13 ac
SmallerTypical 0.18 acBigger

Bigger than 27% of homes nearby

Year built1934
OlderTypical 1958Newer

Newer than 13% of homes nearby

How 27 N Prospect Ave ranks against every home in each area.
MeasureThis homeCatonsville 21228Baltimore County
Estimated valuepricier than$338,10920% of homes45% of homes
Price per ft²pricier than$27654% of homes76% of homes
Living areabigger than1,223 ft²24% of homes29% of homes
Lot sizebigger than0.13 ac27% of homes37% of homes
Year builtnewer than193413% of homes8% of homes

About 27 N Prospect Ave

How much is 27 N Prospect Ave, Baltimore, MD worth?

The TopHap Estimate for 27 N Prospect Ave, Baltimore, MD is $338,109 as of Aug 30, 2026. The likely range is $286,350 to $389,868. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 27 N Prospect Ave, Baltimore, MD last sell?

27 N Prospect Ave, Baltimore, MD last sold on Sep 16, 2025 for $330,000, according to the county's recorded deed.

How big is 27 N Prospect Ave, Baltimore, MD?

27 N Prospect Ave, Baltimore, MD has 1 bathrooms, 1,223 square feet of living space and a 0.13-acre lot.

When was 27 N Prospect Ave, Baltimore, MD built?

27 N Prospect Ave, Baltimore, MD was built in 1934, making it 92 years old. It is a conventional home. The building has 2 stories.

What schools serve 27 N Prospect Ave, Baltimore, MD?

27 N Prospect Ave, Baltimore, MD is assigned to Westowne Elementary School (elementary), rated B+; Catonsville High School (high), rated A-; Arbutus Middle School (middle), rated C+. All sit in Baltimore County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 27 N Prospect Ave, Baltimore, MD compare to other homes in Catonsville 21228?

Among the 15,169 homes in Catonsville 21228, it is worth more than 20% of them ($338,109 against a typical $429,604), its price per square foot is higher than 54% of them ($276 against a typical $271), it is bigger than 24% of them (1,223 ft² against a typical 1,508 ft²), its lot is bigger than 27% of them (0.13 ac against a typical 0.18 ac) and it is newer than 13% of them (1934 against a typical 1958). Measured against all of Baltimore County, it is worth more than 45% 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 27 N Prospect Ave, Baltimore, MD?

The 2025 property tax bill for 27 N Prospect Ave, Baltimore, MD was $3,509. The county assessed it at $253,733.

More homes on N Prospect Ave

Closest homes

More homes in Baltimore 21228

Assigned schools

Explore the area

See this home in context

Open 27 N Prospect Ave 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