Skip to content
Skip to content
TopHapOpen in map
Single Family ResidentialResidential
$172,929$126 / 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 85How 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

640 SYLVAN AVE

GRAND RIDGE, IL 61325
0
Baths
1,374 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.
1970
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$173K
$148K low$198K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,902 (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.$63,404 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,572
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$59,832
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$54,118
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$190,212

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.33
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
7
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
73
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
66
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
19
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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 Residential
CountyLASALLE
Lot (acres)The size of the land the home sits on, from county records.0.18
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
Grand Ridge SchoolB+
Elementary · Grades KG–8 · 0.4 mi
H
Ottawa Township High SchoolD+
High · Grades 9–12 · 7.8 mi

District: Ottawa Township High School District 140

Neighborhood · ZIP 61325These 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.75
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.45

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.94%
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.8.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.1,340
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.24 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,130
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,782
Average tempThe average temperature here across a full year.50°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.55%

Owner Tools

Do you own this home?
Claim this home

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

640 Sylvan 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.

  • Has a smaller lot than 72% of homes in Grand Ridge 61325
  • Newer than 78% of homes in Grand Ridge 61325

What homes are worth in Grand Ridge 61325

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

This home
$61K$383K

This home is worth more than 50% of homes in Grand Ridge 61325.

How it measures up in Grand Ridge 61325

The dot is this home. The mark in the middle is the typical home in Grand Ridge 61325.

Estimated value$172,929
CheaperTypical $171,982Pricier

Pricier than 50% of homes nearby

Price per ft²$126
CheaperTypical $121Pricier

Pricier than 56% of homes nearby

Living area1,374 ft²
SmallerTypical 1,525 ft²Bigger

Bigger than 42% of homes nearby

Lot size0.18 ac
SmallerTypical 0.3 acBigger

Bigger than 28% of homes nearby

Year built1970
OlderTypical 1948Newer

Newer than 78% of homes nearby

How 640 Sylvan Ave ranks against every home in each area.
MeasureThis homeGrand Ridge 61325LaSalle County
Estimated valuepricier than$172,92950% of homes50% of homes
Price per ft²pricier than$12656% of homes49% of homes
Living areabigger than1,374 ft²42% of homes48% of homes
Lot sizebigger than0.18 ac28% of homes38% of homes
Year builtnewer than197078% of homes67% of homes

About 640 Sylvan Ave

How much is 640 Sylvan Ave, Grand Ridge, IL worth?

The TopHap Estimate for 640 Sylvan Ave, Grand Ridge, IL is $172,929 as of Aug 30, 2026. The likely range is $147,595 to $198,263. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 640 Sylvan Ave, Grand Ridge, IL last sell?

640 Sylvan Ave, Grand Ridge, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 640 Sylvan Ave, Grand Ridge, IL?

640 Sylvan Ave, Grand Ridge, IL has 1,374 square feet of living space and a 0.18-acre lot.

When was 640 Sylvan Ave, Grand Ridge, IL built?

640 Sylvan Ave, Grand Ridge, IL was built in 1970, making it 56 years old. The building has 1 story.

What schools serve 640 Sylvan Ave, Grand Ridge, IL?

640 Sylvan Ave, Grand Ridge, IL is assigned to Grand Ridge School (elementary), rated B+; Ottawa Township High School (high), rated D+. All sit in Ottawa Township High School District 140. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 640 Sylvan Ave, Grand Ridge, IL compare to other homes in Grand Ridge 61325?

Among the 307 homes in Grand Ridge 61325, it is worth more than 50% of them ($172,929 against a typical $171,982), its price per square foot is higher than 56% of them ($126 against a typical $121), it is bigger than 42% of them (1,374 ft² against a typical 1,525 ft²), its lot is bigger than 28% of them (0.18 ac against a typical 0.3 ac) and it is newer than 78% of them (1970 against a typical 1948). Measured against all of LaSalle 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 640 Sylvan Ave, Grand Ridge, IL?

The 2025 property tax bill for 640 Sylvan Ave, Grand Ridge, IL was $4,902. The county assessed it at $63,404.

More homes on Sylvan Ave

Closest homes

More homes in Grand Ridge 61325

Assigned schools

Explore the area

See this home in context

Open 640 Sylvan Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map