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Single Family ResidenceResidential
$311,320$232 / 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 97How 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 $235,000 on Sep 7, 2007

421 VALENTINE ST

GREENSBORO, MD 21639
1.5
Baths
1,344 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.
1.11 ac
Lot SizeThe size of the land the home sits on, from county records.
2007
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$311K
$302K low$321K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$235,000 · Sep 7, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,535 (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.$237,867 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$226,633
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$249,100

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyCAROLINE
Lot (acres)The size of the land the home sits on, from county records.1.11
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Heat Pump
CoolingThe type of cooling or air conditioning in the home.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.Porch · 120 ft²

Transaction History(4)

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
Greensboro Elementary SchoolB+
Elementary · Grades PK–5 · 0.4 mi
H
North Caroline High SchoolC-
High · Grades 9–12 · 5.5 mi
M
Lockerman Middle SchoolC
Middle · Grades 6–8 · 6.6 mi

District: Caroline County Public Schools

Neighborhood · ZIP 21639These 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.123
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.39

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.9.6%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
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.4,691
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.140 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$65,841
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,893
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.44 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

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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

421 Valentine St 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 more per square foot than 74% of homes in Caroline County
  • Smaller than 67% of homes in Caroline County
  • Newer than 91% of homes in Greensboro 21639

What homes are worth in Greensboro 21639

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

This home
$105K$743K

This home is worth more than 55% of homes in Greensboro 21639.

How it measures up in Greensboro 21639

The dot is this home. The mark in the middle is the typical home in Greensboro 21639.

Estimated value$311,320
CheaperTypical $298,934Pricier

Pricier than 55% of homes nearby

Price per ft²$232
CheaperTypical $205Pricier

Pricier than 72% of homes nearby

Living area1,344 ft²
SmallerTypical 1,488 ft²Bigger

Bigger than 39% of homes nearby

Lot size1.11 ac
SmallerTypical 0.7 acBigger

Bigger than 58% of homes nearby

Year built2007
OlderTypical 1986Newer

Newer than 91% of homes nearby

How 421 Valentine St ranks against every home in each area.
MeasureThis homeGreensboro 21639Caroline County
Estimated valuepricier than$311,32055% of homes50% of homes
Price per ft²pricier than$23272% of homes74% of homes
Living areabigger than1,344 ft²39% of homes33% of homes
Lot sizebigger than1.11 ac58% of homes53% of homes
Year builtnewer than200791% of homes91% of homes

About 421 Valentine St

How much is 421 Valentine St, Greensboro, MD worth?

The TopHap Estimate for 421 Valentine St, Greensboro, MD is $311,320 as of Sep 24, 2026. The likely range is $301,565 to $321,075. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Valentine St, Greensboro, MD last sell?

421 Valentine St, Greensboro, MD last sold on Sep 7, 2007 for $235,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 421 Valentine St, Greensboro, MD?

421 Valentine St, Greensboro, MD has 1.5 bathrooms, 1,344 square feet of living space and a 1.11-acre lot.

When was 421 Valentine St, Greensboro, MD built?

421 Valentine St, Greensboro, MD was built in 2007, making it 19 years old. The building has 1 story.

What schools serve 421 Valentine St, Greensboro, MD?

421 Valentine St, Greensboro, MD is assigned to Greensboro Elementary School (elementary), rated B+; North Caroline High School (high), rated C-; Lockerman Middle School (middle), rated C. All sit in Caroline County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Valentine St, Greensboro, MD compare to other homes in Greensboro 21639?

Among the 1,684 homes in Greensboro 21639, it is worth more than 55% of them ($311,320 against a typical $298,934), its price per square foot is higher than 72% of them ($232 against a typical $205), it is bigger than 39% of them (1,344 ft² against a typical 1,488 ft²), its lot is bigger than 58% of them (1.11 ac against a typical 0.7 ac) and it is newer than 91% of them (2007 against a typical 1986). Measured against all of Caroline County, it is worth more than 50% 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 421 Valentine St, Greensboro, MD?

The 2025 property tax bill for 421 Valentine St, Greensboro, MD was $2,535. The county assessed it at $237,867.

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