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CondominiumResidential

40 Harbor Ct

NAPERVILLE, IL 60565
0.33 ac
Lot SizeThe size of the land the home sits on, from county records.
1992
Year BuiltThe year the home was originally built, according to county records.
Built 19923 floors9 units1,120–1,374 ft²
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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.
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Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
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Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

Sales Performance

$250K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
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1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
1
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
11.1%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+3.9%per yeartypical hold 2.8 yrsfrom 11 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
19971999200220042016201820232026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
19971999200220042016201820232026

21 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.

Studio
7 units
2 bed
2 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.
Studio · 2 ba · 1,374 ft²
3 units
Studio · 2 ba · 1,120 ft²
2 units
Studio · 2 ba · 1,144 ft²
2 units
One-off layouts
2 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.67%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.22%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.26.3 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.35%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$274,831
Median tax billThe middle annual property tax bill among the building's units.$3,372
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 304Mar 6, 2026$250,000Unit 304Jun 7, 2023$225,000Unit 304Dec 5, 2019$155,000Unit 108Apr 5, 2018$210,000Unit 312Jan 19, 2016$133,000Unit 304Nov 3, 2008$170,000Unit 312Jul 11, 2008$174,000Unit 312Oct 28, 2004$155,000Unit 312Sep 21, 2004$155,000Unit 312Oct 4, 2002$176,500

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

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.34 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.Condominium
CountyDUPAGE
Lot (acres)The size of the land the home sits on, from county records.0.33
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Central
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.

E
Maplebrook Elementary SchoolA+
Elementary · Grades KG–5 · 0.4 mi
M
Lincoln Junior High SchoolA+
Middle · Grades 6–8 · 0.9 mi
H
Naperville Central High SchoolA+
High · Grades 9–12 · 2.6 mi

District: Naperville Community Unit District 203

Neighborhood · ZIP 60565These 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.25
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.56

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.40%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.38,555
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,445 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$151,582
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$178,271
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.38 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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.

40 Harbor Ct # 104
2 ba · 1,144 ft²
40 Harbor Ct # 108
2 ba · 1,374 ft²
40 Harbor Ct # 112
2 ba · 1,120 ft²
40 Harbor Ct # 204
2 ba · 1,144 ft²
40 Harbor Ct # 208
2 ba · 1,374 ft²
40 Harbor Ct # 212
2 ba · 1,120 ft²
40 Harbor Ct # 304
2 bd · 2 ba · 1,144 ft²
40 Harbor Ct # 308
2 ba · 1,374 ft²
40 Harbor Ct # 312
2 bd · 2 ba · 1,120 ft²

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

About 40 Harbor Ct

How many units are in 40 Harbor Ct, Naperville, IL?

40 Harbor Ct, Naperville, IL has 9 residential units across 3 floors, built in 1992, according to county assessor records.

How often do units sell at 40 Harbor Ct, Naperville, IL?

1 units at 40 Harbor Ct, Naperville, IL sold in the last 12 months, out of 21 recorded arms-length sales all time. That is a turnover rate of 11.1% of the building per year. The median sale over that period was $250K.

Have units at 40 Harbor Ct, Naperville, IL appreciated?

Across 11 repeat sales of the same unit, 40 Harbor Ct, Naperville, IL returned a median 3.9% 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 2.8 years.

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