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Single Family ResidenceResidential
$501,701$171 / 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 94How 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 $520,296 on Feb 25, 2022

643 PROSPECT ST

INDIANAPOLIS, IN 46203
4
Beds
3.5
Baths
2,937 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.
3,884 ft²
Lot SizeThe size of the land the home sits on, from county records.
2020
Year BuiltThe year the home was originally built, according to county records.

Valuation

$502K
$472K low$531K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$520,296 · Feb 25, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,559 (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.$561,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$31,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$530,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$525,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$561,800

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.50
46
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
0
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
79
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
86
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
42
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.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%
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
CountyMARION
Lot (acres)The size of the land the home sits on, from county records.0.09
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Central
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

Transaction History(1)

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
Henry W. Longfellow Middle SchoolD-
Middle · Grades 6–8 · 0.7 mi
E
Washington Irving Neighborhood School 14F
Elementary · Grades PK–5 · 1.3 mi
H
Christel House Schools at Manual High School
High · Grades 9–12 · 1.3 mi

District: Indianapolis Public Schools

Neighborhood · ZIP 46203These 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.128
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.36

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.18%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.39,395
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,862 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$57,786
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$71,941
Average tempThe average temperature here across a full year.52°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.55%

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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

643 Prospect 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.

  • Among the most valuable homes in Near Southside
  • Costs more per square foot than 79% of homes in Indianapolis 46203
  • Bigger than 98% of homes in Near Southside
  • Has a smaller lot than 92% of homes in Marion County
  • Among the newest homes in Indianapolis 46203

What homes are worth in Indianapolis 46203

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

This home
$73K$480K

This home is worth more than 98% of homes in Indianapolis 46203.

How it measures up in Indianapolis 46203

The dot is this home. The mark in the middle is the typical home in Indianapolis 46203.

Estimated value$501,701
CheaperTypical $154,400Pricier

Pricier than 98% of homes nearby

Price per ft²$171
CheaperTypical $131Pricier

Pricier than 79% of homes nearby

Living area2,937 ft²
SmallerTypical 1,186 ft²Bigger

Bigger than 98% of homes nearby

Lot size3,884 ft²
SmallerTypical 0.13 acBigger

Bigger than 15% of homes nearby

Year built2020
OlderTypical 1947Newer

Newer than almost all homes nearby

How 643 Prospect St ranks against every home in each area.
MeasureThis homeNear SouthsideIndianapolis 46203Marion County
Estimated valuepricier than$501,701almost all homes98% of homes94% of homes
Price per ft²pricier than$17172% of homes79% of homes72% of homes
Living areabigger than2,937 ft²98% of homes98% of homes93% of homes
Lot sizebigger than3,884 ft²38% of homes15% of homes8% of homes
Year builtnewer than202098% of homesalmost all homesalmost all homes

About 643 Prospect St

How much is 643 Prospect St, Indianapolis, IN worth?

The TopHap Estimate for 643 Prospect St, Indianapolis, IN is $501,701 as of Sep 24, 2026. The likely range is $472,382 to $531,020. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 643 Prospect St, Indianapolis, IN last sell?

643 Prospect St, Indianapolis, IN last sold on Feb 25, 2022 for $520,296, according to the county's recorded deed.

How big is 643 Prospect St, Indianapolis, IN?

643 Prospect St, Indianapolis, IN has 4 bedrooms, 3.5 bathrooms, 2,937 square feet of living space and a 0.09-acre lot.

When was 643 Prospect St, Indianapolis, IN built?

643 Prospect St, Indianapolis, IN was built in 2020, making it 6 years old.

What schools serve 643 Prospect St, Indianapolis, IN?

643 Prospect St, Indianapolis, IN is assigned to Henry W. Longfellow Middle School (middle), rated D-; Washington Irving Neighborhood School 14 (elementary), rated F; Christel House Schools at Manual High School (high). All sit in Indianapolis Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 643 Prospect St, Indianapolis, IN compare to other homes in Indianapolis 46203?

Among the 15,946 homes in Indianapolis 46203, it is worth more than 98% of them ($501,701 against a typical $154,400), its price per square foot is higher than 79% of them ($171 against a typical $131), it is bigger than 98% of them (2,937 ft² against a typical 1,186 ft²), its lot is bigger than 15% of them (3,884 ft² against a typical 0.13 ac) and it is newer than almost all of them (2020 against a typical 1947). Measured against all of Marion County, it is worth more than 94% 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 643 Prospect St, Indianapolis, IN?

The 2025 property tax bill for 643 Prospect St, Indianapolis, IN was $6,559. The county assessed it at $561,800.

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