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Single Family ResidenceResidential
$391,826$144 / 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 $297,500 on Jan 28, 2022

321 COOPER ST

PLANO, IL 60545
0
Baths
2,720 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
2021
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$392K
$379K low$405K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$297,500 · Jan 28, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,352 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$107,505 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$9,377
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$98,128
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$107,505
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$322,515

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.18
41
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
22
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
27
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.9 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Single Family Residence
CountyKendall
Lot (acres)The size of the land the home sits on, from county records.0.18
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.Composition Shingle
HeatingThe type of heating system in the home.Forced Air
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

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.

H
Plano High SchoolD+
High · Grades 9–12 · 0.2 mi
E
P H Miller Elementary School
Elementary · Grades PK–1 · 0.5 mi
M
Plano Middle SchoolC-
Middle · Grades 7–8 · 1.1 mi

District: Plano Community Unit School District 88

Neighborhood · ZIP 60545These 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.108
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.53

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.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.17,114
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.449 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$90,067
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$103,709
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.37 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

Owner Tools

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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

321 Cooper 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.

  • Worth more than 80% of homes in Plano 60545
  • Costs less per square foot than 95% of homes in Kendall County
  • Bigger than 86% of homes in Plano 60545
  • Has a smaller lot than 77% of homes in Kendall County
  • Newer than 95% of homes in Plano 60545

What homes are worth in Plano 60545

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

This home
$171K$597K

This home is worth more than 80% of homes in Plano 60545.

How it measures up in Plano 60545

The dot is this home. The mark in the middle is the typical home in Plano 60545.

Estimated value$391,826
CheaperTypical $297,020Pricier

Pricier than 80% of homes nearby

Price per ft²$144
CheaperTypical $183Pricier

Pricier than 19% of homes nearby

Living area2,720 ft²
SmallerTypical 1,644 ft²Bigger

Bigger than 86% of homes nearby

Lot size0.18 ac
SmallerTypical 0.22 acBigger

Bigger than 28% of homes nearby

Year built2021
OlderTypical 2004Newer

Newer than 95% of homes nearby

How 321 Cooper St ranks against every home in each area.
MeasureThis homePlano 60545Kendall County
Estimated valuepricier than$391,82680% of homes50% of homes
Price per ft²pricier than$14419% of homes5% of homes
Living areabigger than2,720 ft²86% of homes80% of homes
Lot sizebigger than0.18 ac28% of homes23% of homes
Year builtnewer than202195% of homes95% of homes

About 321 Cooper St

How much is 321 Cooper St, Plano, IL worth?

The TopHap Estimate for 321 Cooper St, Plano, IL is $391,826 as of Sep 24, 2026. The likely range is $378,788 to $404,864. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 321 Cooper St, Plano, IL last sell?

321 Cooper St, Plano, IL last sold on Jan 28, 2022 for $297,500, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 321 Cooper St, Plano, IL?

321 Cooper St, Plano, IL has 2,720 square feet of living space and a 0.18-acre lot.

When was 321 Cooper St, Plano, IL built?

321 Cooper St, Plano, IL was built in 2021, making it 5 years old. The building has 2 stories.

What schools serve 321 Cooper St, Plano, IL?

321 Cooper St, Plano, IL is assigned to Plano High School (high), rated D+; P H Miller Elementary School (elementary); Plano Middle School (middle), rated C-. All sit in Plano Community Unit School District 88. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 321 Cooper St, Plano, IL compare to other homes in Plano 60545?

Among the 4,719 homes in Plano 60545, it is worth more than 80% of them ($391,826 against a typical $297,020), its price per square foot is higher than 19% of them ($144 against a typical $183), it is bigger than 86% of them (2,720 ft² against a typical 1,644 ft²), its lot is bigger than 28% of them (0.18 ac against a typical 0.22 ac) and it is newer than 95% of them (2021 against a typical 2004). Measured against all of Kendall 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 321 Cooper St, Plano, IL?

The 2024 property tax bill for 321 Cooper St, Plano, IL was $8,352. The county assessed it at $107,505.

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