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Single Family ResidenceResidential
$306,938$193 / 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 90How 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 $141,900 on Jan 25, 1999

509 SAINT OLAF AVE

NORTHFIELD, MN 55057
4
Beds
2.5
Baths
1,591 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1922
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$307K
$275K low$339K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$141,900 · Jan 25, 1999

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,830 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$344,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$72,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$272,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$339,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$344,700

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.A-Frame
CountyRICE
Lot (acres)The size of the land the home sits on, from county records.0.24
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, Detached
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.Patio · 200 ft²Porch · 358 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Greenvale Park ElementaryA
Elementary · Grades KG–5 · 0.6 mi
H
Northfield High SchoolA-
High · Grades 9–12 · 1.1 mi
M
Northfield Middle SchoolA
Middle · Grades 6–8 · 1.8 mi

District: Northfield Public School District

Neighborhood · ZIP 55057These 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.85
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.11

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
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.26,848
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.210 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,623
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,547
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.32 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.58%

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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

509 Saint Olaf Ave 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 72% of homes in Northfield 55057
  • Costs less per square foot than 73% of homes in Northfield 55057
  • Has a smaller lot than 71% of homes in Rice County
  • Older than 86% of homes in Northfield 55057

What homes are worth in Northfield 55057

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

This home
$169K$860K

This home is worth more than 28% of homes in Northfield 55057.

How it measures up in Northfield 55057

The dot is this home. The mark in the middle is the typical home in Northfield 55057.

Estimated value$306,938
CheaperTypical $380,729Pricier

Pricier than 28% of homes nearby

Price per ft²$193
CheaperTypical $231Pricier

Pricier than 27% of homes nearby

Living area1,591 ft²
SmallerTypical 1,566 ft²Bigger

Bigger than 52% of homes nearby

Lot size0.24 ac
SmallerTypical 0.29 acBigger

Bigger than 33% of homes nearby

Year built1922
OlderTypical 1984Newer

Newer than 14% of homes nearby

How 509 Saint Olaf Ave ranks against every home in each area.
MeasureThis homeNorthfield 55057Rice County
Estimated valuepricier than$306,93828% of homes40% of homes
Price per ft²pricier than$19327% of homes29% of homes
Living areabigger than1,591 ft²52% of homes63% of homes
Lot sizebigger than0.24 ac33% of homes29% of homes
Year builtnewer than192214% of homes17% of homes

About 509 Saint Olaf Ave

How much is 509 Saint Olaf Ave, Northfield, MN worth?

The TopHap Estimate for 509 Saint Olaf Ave, Northfield, MN is $306,938 as of Sep 24, 2026. The likely range is $275,174 to $338,702. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Saint Olaf Ave, Northfield, MN last sell?

509 Saint Olaf Ave, Northfield, MN last sold on Jan 25, 1999 for $141,900, according to the county's recorded deed.

How big is 509 Saint Olaf Ave, Northfield, MN?

509 Saint Olaf Ave, Northfield, MN has 4 bedrooms, 2.5 bathrooms, 1,591 square feet of living space and a 0.24-acre lot.

When was 509 Saint Olaf Ave, Northfield, MN built?

509 Saint Olaf Ave, Northfield, MN was built in 1922, making it 104 years old. It is a a-frame home. The building has 1 story.

What schools serve 509 Saint Olaf Ave, Northfield, MN?

509 Saint Olaf Ave, Northfield, MN is assigned to Greenvale Park Elementary (elementary), rated A; Northfield High School (high), rated A-; Northfield Middle School (middle), rated A. All sit in Northfield Public School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Saint Olaf Ave, Northfield, MN compare to other homes in Northfield 55057?

Among the 7,744 homes in Northfield 55057, it is worth more than 28% of them ($306,938 against a typical $380,729), its price per square foot is higher than 27% of them ($193 against a typical $231), it is bigger than 52% of them (1,591 ft² against a typical 1,566 ft²), its lot is bigger than 33% of them (0.24 ac against a typical 0.29 ac) and it is newer than 14% of them (1922 against a typical 1984). Measured against all of Rice County, it is worth more than 40% 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 509 Saint Olaf Ave, Northfield, MN?

The 2026 property tax bill for 509 Saint Olaf Ave, Northfield, MN was $5,830. The county assessed it at $344,700.

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