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Single Family ResidenceResidential
$732,608$151 / 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 88How 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 $450,000 on Jul 21, 2015

521 KNOLLWOOD DR SE

CEDAR RAPIDS, IA 52403
4
Beds
4.3
Baths
4,864 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.
0.54 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
11
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$733K
$646K low$819K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$450,000 · Jul 21, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$9,478 (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.$536,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$88,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$447,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$533,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$536,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyLINN
Lot (acres)The size of the land the home sits on, from county records.0.54
ConstructionThe main material the home's frame and walls are built from.Brick
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Radiant
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
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.DeckPatio · 12 ft²Porch · 413 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
Grant Wood Elementary SchoolD
Elementary · Grades PK–5 · 0.3 mi
M
McKinley STEAM AcademyD-
Middle · Grades 6–8 · 0.8 mi
H
Washington High SchoolD
High · Grades 9–12 · 1.2 mi

District: Cedar Rapids Community School District

Neighborhood · ZIP 52403These 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.110
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 100.18

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.9%
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.23,841
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.892 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$79,627
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$114,272
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.36 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

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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

521 Knollwood Dr Se 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 98% of homes in Linn County
  • Among the largest homes in Linn County
  • Has a bigger lot than 77% of homes in Linn County
  • Older than 83% of homes in Linn County

What homes are worth in Cedar Rapids 52403

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

This home
$80K$1M

This home is worth more than 95% of homes in Cedar Rapids 52403.

How it measures up in Cedar Rapids 52403

The dot is this home. The mark in the middle is the typical home in Cedar Rapids 52403.

Estimated value$732,608
CheaperTypical $219,426Pricier

Pricier than 95% of homes nearby

Price per ft²$151
CheaperTypical $135Pricier

Pricier than 63% of homes nearby

Living area4,864 ft²
SmallerTypical 1,666 ft²Bigger

Bigger than 98% of homes nearby

Lot size0.54 ac
SmallerTypical 0.23 acBigger

Bigger than 74% of homes nearby

Year built1930
OlderTypical 1954Newer

Newer than 33% of homes nearby

How 521 Knollwood Dr Se ranks against every home in each area.
MeasureThis homeCedar Rapids 52403Linn County
Estimated valuepricier than$732,60895% of homes98% of homes
Price per ft²pricier than$15163% of homes46% of homes
Living areabigger than4,864 ft²98% of homesalmost all homes
Lot sizebigger than0.54 ac74% of homes77% of homes
Year builtnewer than193033% of homes17% of homes

About 521 Knollwood Dr Se

How much is 521 Knollwood Dr Se, Cedar Rapids, IA worth?

The TopHap Estimate for 521 Knollwood Dr Se, Cedar Rapids, IA is $732,608 as of Sep 24, 2026. The likely range is $646,477 to $818,739. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 Knollwood Dr Se, Cedar Rapids, IA last sell?

521 Knollwood Dr Se, Cedar Rapids, IA last sold on Jul 21, 2015 for $450,000, according to the county's recorded deed.

How big is 521 Knollwood Dr Se, Cedar Rapids, IA?

521 Knollwood Dr Se, Cedar Rapids, IA has 4 bedrooms, 4.3 bathrooms, 4,864 square feet of living space and a 0.54-acre lot.

When was 521 Knollwood Dr Se, Cedar Rapids, IA built?

521 Knollwood Dr Se, Cedar Rapids, IA was built in 1930, making it 96 years old. The building has 2 stories.

What schools serve 521 Knollwood Dr Se, Cedar Rapids, IA?

521 Knollwood Dr Se, Cedar Rapids, IA is assigned to Grant Wood Elementary School (elementary), rated D; McKinley STEAM Academy (middle), rated D-; Washington High School (high), rated D. All sit in Cedar Rapids Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 Knollwood Dr Se, Cedar Rapids, IA compare to other homes in Cedar Rapids 52403?

Among the 10,078 homes in Cedar Rapids 52403, it is worth more than 95% of them ($732,608 against a typical $219,426), its price per square foot is higher than 63% of them ($151 against a typical $135), it is bigger than 98% of them (4,864 ft² against a typical 1,666 ft²), its lot is bigger than 74% of them (0.54 ac against a typical 0.23 ac) and it is newer than 33% of them (1930 against a typical 1954). Measured against all of Linn County, it is worth more than 98% 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 521 Knollwood Dr Se, Cedar Rapids, IA?

The 2025 property tax bill for 521 Knollwood Dr Se, Cedar Rapids, IA was $9,478. The county assessed it at $536,000.

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