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Single Family ResidenceResidential
$95,593$84 / 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 70How 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 $20,000 on Apr 20, 2012

450 KNOLLS ST

LANSING, IA 52151
3
Beds
1
Baths
1,144 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.
0.55 ac
Lot SizeThe size of the land the home sits on, from county records.
2012
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$96K
$67K low$124K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$20,000 · Apr 20, 2012

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,488 (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.$274,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$56,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$218,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$239,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$274,900

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.106 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 percent flood zone

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
CountyALLAMAKEE
Lot (acres)The size of the land the home sits on, from county records.0.55
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 260 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.

H
Kee High SchoolA
High · Grades 9–12 · 0.6 mi
M
Lansing Middle SchoolA-
Middle · Grades 5–8 · 0.6 mi
E
New Albin Elementary SchoolB
Elementary · Grades PK–4 · 9.7 mi

District: Eastern Allamakee Community School District

Neighborhood · ZIP 52151These 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.143
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.77
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.15

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.71%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.2,026
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.14 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$60,716
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$78,843
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.34 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

Owner Tools

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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

450 Knolls 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.

  • Worth less than 96% of homes in Lansing 52151
  • Costs less per square foot than 97% of homes in Lansing 52151
  • Smaller than 72% of homes in Allamakee County
  • Newer than 91% of homes in Allamakee County

What homes are worth in Lansing 52151

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

This home
$87K$662K

This home is worth more than 4% of homes in Lansing 52151.

How it measures up in Lansing 52151

The dot is this home. The mark in the middle is the typical home in Lansing 52151.

Estimated value$95,593
CheaperTypical $278,548Pricier

Pricier than 4% of homes nearby

Price per ft²$84
CheaperTypical $202Pricier

Pricier than 3% of homes nearby

Living area1,144 ft²
SmallerTypical 1,387 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.55 ac
SmallerTypical 0.62 acBigger

Bigger than 48% of homes nearby

Year built2012
OlderTypical 1979Newer

Newer than 87% of homes nearby

How 450 Knolls St ranks against every home in each area.
MeasureThis homeLansing 52151Allamakee County
Estimated valuepricier than$95,5934% of homes14% of homes
Price per ft²pricier than$843% of homes19% of homes
Living areabigger than1,144 ft²31% of homes28% of homes
Lot sizebigger than0.55 ac48% of homes52% of homes
Year builtnewer than201287% of homes91% of homes

About 450 Knolls St

How much is 450 Knolls St, Lansing, IA worth?

The TopHap Estimate for 450 Knolls St, Lansing, IA is $95,593 as of Aug 30, 2026. The likely range is $67,316 to $123,870. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 450 Knolls St, Lansing, IA last sell?

450 Knolls St, Lansing, IA last sold on Apr 20, 2012 for $20,000, according to the county's recorded deed.

How big is 450 Knolls St, Lansing, IA?

450 Knolls St, Lansing, IA has 3 bedrooms, 1 bathrooms, 1,144 square feet of living space and a 0.55-acre lot.

When was 450 Knolls St, Lansing, IA built?

450 Knolls St, Lansing, IA was built in 2012, making it 14 years old. The building has 1 story.

What schools serve 450 Knolls St, Lansing, IA?

450 Knolls St, Lansing, IA is assigned to Kee High School (high), rated A; Lansing Middle School (middle), rated A-; New Albin Elementary School (elementary), rated B. All sit in Eastern Allamakee Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 450 Knolls St, Lansing, IA compare to other homes in Lansing 52151?

Among the 1,397 homes in Lansing 52151, it is worth more than 4% of them ($95,593 against a typical $278,548), its price per square foot is higher than 3% of them ($84 against a typical $202), it is bigger than 31% of them (1,144 ft² against a typical 1,387 ft²), its lot is bigger than 48% of them (0.55 ac against a typical 0.62 ac) and it is newer than 87% of them (2012 against a typical 1979). Measured against all of Allamakee County, it is worth more than 14% 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 450 Knolls St, Lansing, IA?

The 2025 property tax bill for 450 Knolls St, Lansing, IA was $4,488. The county assessed it at $274,900.

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