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Single Family ResidenceResidential
$598,836$421 / 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 Aug 30, 2026

21 SHAMROCK LN

NORWALK, CT 06850
4
Beds
2
Baths
1,422 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.
0.23 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.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$599K
$580K low$617K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,073 (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.$337,130 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$153,230
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$183,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$337,130
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$235,991

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.Cape Cod
CountyWESTERN CONNECTICUT
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1985
Lot (acres)The size of the land the home sits on, from county records.0.23
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Hot Water
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.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(6)

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
Kendall Elementary SchoolC
Elementary · Grades KG–5 · 0.3 mi
M
Ponus Ridge Middle SchoolC
Middle · Grades 6–8 · 0.8 mi
H
McMahon High SchoolD
High · Grades 9–12 · 2.0 mi

District: Norwalk School District

Neighborhood · ZIP 06850These 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.81
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.113
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.93

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.26%
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.0.9%
PopulationHow many people live in this area.23,602
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,501 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$115,282
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$144,660
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.50 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

21 Shamrock 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.

  • Worth less than 67% of homes in Western Connecticut County
  • Smaller than 71% of homes in Western Connecticut County
  • Has a smaller lot than 78% of homes in Western Connecticut County
  • Older than 68% of homes in Western Connecticut County

What homes are worth in Norwalk 06850

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

This home
$220K$1.6M

This home is worth more than 43% of homes in Norwalk 06850.

How it measures up in Norwalk 06850

The dot is this home. The mark in the middle is the typical home in Norwalk 06850.

Estimated value$598,836
CheaperTypical $635,180Pricier

Pricier than 43% of homes nearby

Price per ft²$421
CheaperTypical $425Pricier

Pricier than 48% of homes nearby

Living area1,422 ft²
SmallerTypical 1,475 ft²Bigger

Bigger than 45% of homes nearby

Lot size0.23 ac
SmallerTypical 0.32 acBigger

Bigger than 39% of homes nearby

Year built1955
OlderTypical 1960Newer

Newer than 41% of homes nearby

How 21 Shamrock Ln ranks against every home in each area.
MeasureThis homeNorwalk 06850Western Connecticut County
Estimated valuepricier than$598,83643% of homes33% of homes
Price per ft²pricier than$42148% of homes50% of homes
Living areabigger than1,422 ft²45% of homes29% of homes
Lot sizebigger than0.23 ac39% of homes22% of homes
Year builtnewer than195541% of homes32% of homes

About 21 Shamrock Ln

How much is 21 Shamrock Ln, Norwalk, CT worth?

The TopHap Estimate for 21 Shamrock Ln, Norwalk, CT is $598,836 as of Aug 30, 2026. The likely range is $580,240 to $617,432. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Shamrock Ln, Norwalk, CT last sell?

21 Shamrock Ln, Norwalk, CT last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 21 Shamrock Ln, Norwalk, CT?

21 Shamrock Ln, Norwalk, CT has 4 bedrooms, 2 bathrooms, 1,422 square feet of living space and a 0.23-acre lot.

When was 21 Shamrock Ln, Norwalk, CT built?

21 Shamrock Ln, Norwalk, CT was built in 1955, making it 71 years old. It is a cape cod home. The building has 2 stories.

What schools serve 21 Shamrock Ln, Norwalk, CT?

21 Shamrock Ln, Norwalk, CT is assigned to Kendall Elementary School (elementary), rated C; Ponus Ridge Middle School (middle), rated C; McMahon High School (high), rated D. All sit in Norwalk School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Shamrock Ln, Norwalk, CT compare to other homes in Norwalk 06850?

Among the 6,010 homes in Norwalk 06850, it is worth more than 43% of them ($598,836 against a typical $635,180), its price per square foot is higher than 48% of them ($421 against a typical $425), it is bigger than 45% of them (1,422 ft² against a typical 1,475 ft²), its lot is bigger than 39% of them (0.23 ac against a typical 0.32 ac) and it is newer than 41% of them (1955 against a typical 1960). Measured against all of Western Connecticut County, it is worth more than 33% 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 21 Shamrock Ln, Norwalk, CT?

The 2025 property tax bill for 21 Shamrock Ln, Norwalk, CT was $8,073. The county assessed it at $337,130.

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