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Single Family ResidenceResidential
$391,564$244 / 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 92How 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
Last sold for $380,000 on Jun 16, 2023

904 KNOLL DR

NORWALK, IA 50211
3
Beds
3 / 1
Baths
1,604 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
2022
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
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

$392K
$360K low$424K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$380,000 · Jun 16, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,616 (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.$377,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$56,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$320,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$298,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$377,200

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.31
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
23
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.Single Family Residence
CountyWarren
Lot (acres)The size of the land the home sits on, from county records.0.14
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 120 ft²Porch · 35 ft²

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

904 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.

  • Worth more than 73% of homes in Warren County
  • Costs more per square foot than 72% of homes in Warren County
  • Has a smaller lot than 90% of homes in Warren County
  • Newer than 96% 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
$177K$860K

This home is worth more than 66% 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$391,564
CheaperTypical $328,745Pricier

Pricier than 66% of homes nearby

Price per ft²$244
CheaperTypical $219Pricier

Pricier than 64% of homes nearby

Living area1,604 ft²
SmallerTypical 1,578 ft²Bigger

Bigger than 52% of homes nearby

Lot size0.14 ac
SmallerTypical 0.24 acBigger

Bigger than 18% of homes nearby

Year built2022
OlderTypical 2006Newer

Newer than 92% of homes nearby

How 904 Knoll Dr ranks against every home in each area.
MeasureThis homeNorwalk 50211Warren County
Estimated valuepricier than$391,56466% of homes73% of homes
Price per ft²pricier than$24464% of homes72% of homes
Living areabigger than1,604 ft²52% of homes57% of homes
Lot sizebigger than0.14 ac18% of homes10% of homes
Year builtnewer than202292% of homes96% of homes

About 904 Knoll Dr

How much is 904 Knoll Dr, Norwalk, IA worth?

The TopHap Estimate for 904 Knoll Dr, Norwalk, IA is $391,564 as of Aug 30, 2026. The likely range is $359,550 to $423,578. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 904 Knoll Dr, Norwalk, IA last sell?

904 Knoll Dr, Norwalk, IA last sold on Jun 16, 2023 for $380,000, according to the county's recorded deed.

How big is 904 Knoll Dr, Norwalk, IA?

904 Knoll Dr, Norwalk, IA has 3 bedrooms, 3 bathrooms, 1,604 square feet of living space and a 0.14-acre lot.

When was 904 Knoll Dr, Norwalk, IA built?

904 Knoll Dr, Norwalk, IA was built in 2022, making it 4 years old. The building has 1 story.

What schools serve 904 Knoll Dr, Norwalk, IA?

904 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 904 Knoll Dr, Norwalk, IA compare to other homes in Norwalk 50211?

Among the 6,546 homes in Norwalk 50211, it is worth more than 66% of them ($391,564 against a typical $328,745), its price per square foot is higher than 64% of them ($244 against a typical $219), it is bigger than 52% of them (1,604 ft² against a typical 1,578 ft²), its lot is bigger than 18% of them (0.14 ac against a typical 0.24 ac) and it is newer than 92% of them (2022 against a typical 2006). Measured against all of Warren County, it is worth more than 73% 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 904 Knoll Dr, Norwalk, IA?

The 2024 property tax bill for 904 Knoll Dr, Norwalk, IA was $5,616. The county assessed it at $377,200.

More homes on Knoll Dr

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