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CondominiumResidential

18 Prospect Ave

NORWALK, CT 06850
1967
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
Built 196754 units429–960 ft²
$10M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$235K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$383
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-9.6%vs the Norwalk ZIP median sale $/ft² ($423)

Sales Performance

$250K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
+34.8%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
8
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
14.8%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+3.0%per yeartypical hold 9.5 yrsfrom 74 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
19871993199820032008201620212026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
19871993199820032008201620212026

127 arms-length sales on record for this building.

Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.

Every unit: size vs estimated valueEvery unit in the building as one dot: across is its size, up is our current value estimate, and color is its bedroom count. Vertical columns of dots are recurring floor plans; the height spread within a column shows how much floor, view and condition move prices for the same layout.
$174K$253K$333K$413K572 ft²650 ft²727 ft²805 ft²882 ft²960 ft²
1 bd2 bd
1 bed
31 units
2 bed
23 units
Recurring floor plansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
1 bd · 1 ba · 572 ft²
30 units
2 bd · 1 ba · 704 ft²
18 units
2 bd · 1.5 ba · 960 ft²
4 units
One-off layouts
2 units

Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.

$174K–$201K
4 units
$204K–$226K
15 units
$234K–$262K
12 units
$269K–$285K
6 units
$295K–$295K
1 unit
$338K–$338K
1 unit
$399K–$413K
3 units

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.39%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.33%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.9.1 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.50%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.53%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$222,789
Median tax billThe middle annual property tax bill among the building's units.$3,034
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0

Recent SalesThe latest recorded arms-length sales in the building, newest first.

Unit A3Jun 2, 2026$260,000Unit A14Apr 17, 2026$275,000Unit C10Apr 6, 2026$220,000Unit B1Mar 13, 2026$280,000Unit C15Jan 6, 2026$195,000Unit A13Dec 8, 2025$195,727Unit C1Dec 2, 2025$300,000Unit C1Sep 22, 2025$240,000Unit D4May 27, 2025$376,000Unit A15May 8, 2025$185,452

Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
60
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
95
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
43
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Condominium
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.1984
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
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

M
Ponus Ridge Middle SchoolC
Middle · Grades 6–8 · 1.0 mi
E
Jefferson Science Magnet SchoolC
Elementary · Grades KG–5 · 1.0 mi
H
McMahon High SchoolD
High · Grades 9–12 · 2.1 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%

All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.

18 Prospect Ave # A1
2 bd · 1 ba · 704 ft²
$259K
18 Prospect Ave # B1
2 bd · 1 ba · 704 ft²
$285K
18 Prospect Ave # C1
2 bd · 1 ba · 704 ft²
$250K
18 Prospect Ave # D1
2 bd · 1.5 ba · 960 ft²
18 Prospect Ave # E1
2 bd · 1 ba · 922 ft²
$338K
18 Prospect Ave # A2
1 bd · 1 ba · 572 ft²
$236K
18 Prospect Ave # B2
1 bd · 1 ba · 572 ft²
$224K
18 Prospect Ave # C2
1 bd · 1 ba · 572 ft²
$251K
18 Prospect Ave # D2
2 bd · 1.5 ba · 960 ft²
$413K
18 Prospect Ave # E2
1 bd · 1 ba · 429 ft²
18 Prospect Ave # A3
2 bd · 1 ba · 704 ft²
$262K
18 Prospect Ave # B3
2 bd · 1 ba · 704 ft²
18 Prospect Ave # C3
2 bd · 1 ba · 704 ft²
18 Prospect Ave # D3
2 bd · 1.5 ba · 960 ft²
$402K
18 Prospect Ave # A4
1 bd · 1 ba · 572 ft²
$213K
18 Prospect Ave # B4
1 bd · 1 ba · 572 ft²
$212K
18 Prospect Ave # C4
1 bd · 1 ba · 572 ft²
$192K
18 Prospect Ave # D4
2 bd · 1.5 ba · 960 ft²
$399K
18 Prospect Ave # A5
2 bd · 1 ba · 704 ft²
$269K
18 Prospect Ave # B5
2 bd · 1 ba · 704 ft²
$260K
18 Prospect Ave # C5
2 bd · 1 ba · 704 ft²
18 Prospect Ave # A6
1 bd · 1 ba · 572 ft²
$211K
18 Prospect Ave # B6
1 bd · 1 ba · 572 ft²
$204K
18 Prospect Ave # C6
1 bd · 1 ba · 572 ft²
$237K
18 Prospect Ave # A7
1 bd · 1 ba · 572 ft²
$212K
18 Prospect Ave # B7
1 bd · 1 ba · 572 ft²
$225K
18 Prospect Ave # C7
1 bd · 1 ba · 572 ft²
$224K
18 Prospect Ave # A8
1 bd · 1 ba · 572 ft²
$235K
18 Prospect Ave # B8
2 bd · 1 ba · 704 ft²
$277K
18 Prospect Ave # C8
1 bd · 1 ba · 572 ft²
18 Prospect Ave # A9
1 bd · 1 ba · 572 ft²
18 Prospect Ave # B9
1 bd · 1 ba · 572 ft²
$226K
18 Prospect Ave # C9
1 bd · 1 ba · 572 ft²
$226K
18 Prospect Ave # A10
1 bd · 1 ba · 572 ft²
$212K
18 Prospect Ave # B10
2 bd · 1 ba · 704 ft²
$274K
18 Prospect Ave # C10
1 bd · 1 ba · 572 ft²
18 Prospect Ave # A11
1 bd · 1 ba · 572 ft²
$226K
18 Prospect Ave # B11
1 bd · 1 ba · 572 ft²
$212K
18 Prospect Ave # C11
1 bd · 1 ba · 572 ft²
$174K
18 Prospect Ave # A12
1 bd · 1 ba · 572 ft²
$234K
18 Prospect Ave # B12
2 bd · 1 ba · 704 ft²
$275K
18 Prospect Ave # C12
1 bd · 1 ba · 572 ft²
18 Prospect Ave # A13
1 bd · 1 ba · 572 ft²
18 Prospect Ave # C13
1 bd · 1 ba · 572 ft²
$212K
18 Prospect Ave # A14
2 bd · 1 ba · 704 ft²
$260K
18 Prospect Ave # C14
2 bd · 1 ba · 704 ft²
$261K
18 Prospect Ave # A15
1 bd · 1 ba · 572 ft²
$197K
18 Prospect Ave # C15
1 bd · 1 ba · 572 ft²
$201K
18 Prospect Ave # A16
2 bd · 1 ba · 704 ft²
18 Prospect Ave # C16
2 bd · 1 ba · 704 ft²
$295K
18 Prospect Ave # A17
1 bd · 1 ba · 572 ft²
$238K
18 Prospect Ave # C17
1 bd · 1 ba · 572 ft²
$213K
18 Prospect Ave # A18
2 bd · 1 ba · 704 ft²
18 Prospect Ave # C18
2 bd · 1 ba · 704 ft²
$269K

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

About 18 Prospect Ave

How many units are in 18 Prospect Ave, Norwalk, CT?

18 Prospect Ave, Norwalk, CT has 54 residential units across built in 1967, according to county assessor records.

What is a unit at 18 Prospect Ave, Norwalk, CT worth?

The median TopHap Estimate across the 54 units at 18 Prospect Ave, Norwalk, CT is $235,431. That works out to $383 per square foot. Units run from 429 to 960 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 18 Prospect Ave, Norwalk, CT expensive for Norwalk?

Units at 18 Prospect Ave, Norwalk, CT carry a median of $383 per square foot, 10% below the Norwalk median of $423 per square foot.

How often do units sell at 18 Prospect Ave, Norwalk, CT?

8 units at 18 Prospect Ave, Norwalk, CT sold in the last 12 months, out of 127 recorded arms-length sales all time. That is a turnover rate of 14.8% of the building per year. The median sale over that period was $250K.

Have units at 18 Prospect Ave, Norwalk, CT appreciated?

Across 74 repeat sales of the same unit, 18 Prospect Ave, Norwalk, CT returned a median 3.0% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 9.5 years.

What floor plans does 18 Prospect Ave, Norwalk, CT have?

The most common plan at 18 Prospect Ave, Norwalk, CT is a 1-bedroom of 572 square feet, repeated 30 times, with a median estimate of $213,188. TopHap identifies 3 recurring plans in the building.

More homes on Prospect Ave

Closest homes

More homes in Norwalk 06850

Assigned schools

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