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Single Family ResidenceResidential
$243,499$123 / 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 96How 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 $225,000 on Aug 6, 2021

665 FOREST AVE

ELGIN, IL 60120
1
Baths
1,975 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1885
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$243K
$235K low$252K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$225,000 · Aug 6, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,061 (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.$87,443 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,405
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$68,038
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$80,540
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$262,434

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyKANE
Lot (acres)The size of the land the home sits on, from county records.0.20
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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.

M
Ellis Middle SchoolD
Middle · Grades 7–8 · 0.4 mi
E
Lords Park Elementary SchoolD
Elementary · Grades KG–6 · 0.7 mi
H
Elgin High SchoolD
High · Grades 9–12 · 1.3 mi

District: School District U-46

Neighborhood · ZIP 60120These 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.87
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.47

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.15%
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.1.9%
PopulationHow many people live in this area.51,977
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.4,108 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$75,556
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,612
Average tempThe average temperature here across a full year.48°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%

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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

665 Forest Ave 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 88% of homes in Kane County
  • Among the lowest price per square foot in Kane County
  • Bigger than 81% of homes in Elgin 60120
  • Among the oldest homes in Kane County

What homes are worth in Elgin 60120

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

This home
$171K$609K

This home is worth more than 23% of homes in Elgin 60120.

How it measures up in Elgin 60120

The dot is this home. The mark in the middle is the typical home in Elgin 60120.

Estimated value$243,499
CheaperTypical $285,139Pricier

Pricier than 23% of homes nearby

Price per ft²$123
CheaperTypical $205Pricier

Pricier than 2% of homes nearby

Living area1,975 ft²
SmallerTypical 1,428 ft²Bigger

Bigger than 81% of homes nearby

Lot size0.2 ac
SmallerTypical 0.2 acBigger

Bigger than 57% of homes nearby

Year built1885
OlderTypical 1969Newer

Newer than 3% of homes nearby

How 665 Forest Ave ranks against every home in each area.
MeasureThis homeElgin 60120Kane County
Estimated valuepricier than$243,49923% of homes12% of homes
Price per ft²pricier than$1232% of homesalmost no homes
Living areabigger than1,975 ft²81% of homes60% of homes
Lot sizebigger than0.2 ac57% of homes36% of homes
Year builtnewer than18853% of homesalmost no homes

About 665 Forest Ave

How much is 665 Forest Ave, Elgin, IL worth?

The TopHap Estimate for 665 Forest Ave, Elgin, IL is $243,499 as of Sep 24, 2026. The likely range is $234,841 to $252,157. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 665 Forest Ave, Elgin, IL last sell?

665 Forest Ave, Elgin, IL last sold on Aug 6, 2021 for $225,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 665 Forest Ave, Elgin, IL?

665 Forest Ave, Elgin, IL has 1 bathrooms, 1,975 square feet of living space and a 0.20-acre lot.

When was 665 Forest Ave, Elgin, IL built?

665 Forest Ave, Elgin, IL was built in 1885, making it 141 years old. The building has 2 stories.

What schools serve 665 Forest Ave, Elgin, IL?

665 Forest Ave, Elgin, IL is assigned to Ellis Middle School (middle), rated D; Lords Park Elementary School (elementary), rated D; Elgin High School (high), rated D. All sit in School District U-46. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 665 Forest Ave, Elgin, IL compare to other homes in Elgin 60120?

Among the 13,139 homes in Elgin 60120, it is worth more than 23% of them ($243,499 against a typical $285,139), its price per square foot is higher than 2% of them ($123 against a typical $205), it is bigger than 81% of them (1,975 ft² against a typical 1,428 ft²), its lot is bigger than 57% of them (0.2 ac against a typical 0.2 ac) and it is newer than 3% of them (1885 against a typical 1969). Measured against all of Kane County, it is worth more than 12% 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 665 Forest Ave, Elgin, IL?

The 2025 property tax bill for 665 Forest Ave, Elgin, IL was $6,061. The county assessed it at $87,443.

More homes on Forest Ave

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Assigned schools

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