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Residential (General/Single)Residential
$322,152
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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $330,000 on Nov 4, 2025

901 KNOLL DR

NORWALK, IA 50211
0
Baths
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$322K
$298K low$346K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$330,000 · Nov 4, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4 (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.$200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$200

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.30
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
19
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
72
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
52
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
10
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.Residential (General/Single)
CountyWARREN
Lot (acres)The size of the land the home sits on, from county records.0.16
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.

E
Oviatt Elementary School
Elementary · Grades PK–1 · 1.0 mi
H
Norwalk High SchoolB
High · Grades 9–12 · 1.4 mi
M
Norwalk Middle SchoolB
Middle · Grades 6–8 · 1.5 mi

District: Norwalk Community School District

Neighborhood · ZIP 50211These 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.108
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.16

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.6%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.16,417
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.281 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$97,016
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$122,471
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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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

901 Knoll Dr 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 88% of homes in Warren County

What homes are worth in Norwalk 50211

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

This home
$173K$858K

This home is worth more than 48% of homes in Norwalk 50211.

How it measures up in Norwalk 50211

The dot is this home. The mark in the middle is the typical home in Norwalk 50211.

Estimated value$322,152
CheaperTypical $328,712Pricier

Pricier than 48% of homes nearby

Lot size0.16 ac
SmallerTypical 0.24 acBigger

Bigger than 19% of homes nearby

How 901 Knoll Dr ranks against every home in each area.
MeasureThis homeNorwalk 50211Warren County
Estimated valuepricier than$322,15248% of homes55% of homes
Lot sizebigger than0.16 ac19% of homes12% of homes

About 901 Knoll Dr

How much is 901 Knoll Dr, Norwalk, IA worth?

The TopHap Estimate for 901 Knoll Dr, Norwalk, IA is $322,152 as of Oct 21, 2026. The likely range is $298,059 to $346,245. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 901 Knoll Dr, Norwalk, IA last sell?

901 Knoll Dr, Norwalk, IA last sold on Nov 4, 2025 for $330,000, according to the county's recorded deed.

What schools serve 901 Knoll Dr, Norwalk, IA?

901 Knoll Dr, Norwalk, IA is assigned to Oviatt Elementary School (elementary); Norwalk High School (high), rated B; Norwalk Middle School (middle), rated B. All sit in Norwalk Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 901 Knoll Dr, Norwalk, IA compare to other homes in Norwalk 50211?

Among the 6,569 homes in Norwalk 50211, it is worth more than 48% of them ($322,152 against a typical $328,712) and its lot is bigger than 19% of them (0.16 ac against a typical 0.24 ac). Measured against all of Warren County, it is worth more than 55% 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 901 Knoll Dr, Norwalk, IA?

The 2024 property tax bill for 901 Knoll Dr, Norwalk, IA was $4. The county assessed it at $200.

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More homes in Norwalk 50211

Assigned schools

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