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Duplex (2 Units, Any Combination)Residential
Last sold for $90,000 on Jul 31, 2017

3121 ARSENAL ST

SAINT LOUIS, MO 63118
1
Baths
2,332 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1899
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$90,000 · Jul 31, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,138 (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.$25,770 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,060
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$22,710
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$25,770
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$118,052

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Traditional/Old
CountySAINT LOUIS CITY
Lot (acres)The size of the land the home sits on, from county records.0.11
ConstructionThe main material the home's frame and walls are built from.Brick
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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
Roosevelt High SchoolF
High · Grades 9–12 · 0.2 mi
E
Shenandoah Elementary SchoolF
Elementary · Grades EE–6 · 0.5 mi
M
Long Middle SchoolF
Middle · Grades 6–8 · 2.3 mi

District: St. Louis City School District

Neighborhood · ZIP 63118These 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.120
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.147

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.79%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.23%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.23,817
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.6,483 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$62,199
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$77,378
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

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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

3121 Arsenal 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.

  • Bigger than 72% of homes in Saint Louis City County
  • Has a bigger lot than 80% of homes in Saint Louis 63118
  • Older than 85% of homes in Saint Louis City County

How it measures up in Saint Louis 63118

The dot is this home. The mark in the middle is the typical home in Saint Louis 63118.

Living area2,332 ft²
SmallerTypical 2,064 ft²Bigger

Bigger than 65% of homes nearby

Lot size0.11 ac
SmallerTypical 3,528 ft²Bigger

Bigger than 80% of homes nearby

Year built1899
OlderTypical 1905Newer

Newer than 40% of homes nearby

How 3121 Arsenal St ranks against every home in each area.
MeasureThis homeTower Grove EastSaint Louis 63118Saint Louis City County
Living areabigger than2,332 ft²55% of homes65% of homes72% of homes
Lot sizebigger than0.11 ac78% of homes80% of homes63% of homes
Year builtnewer than189919% of homes40% of homes15% of homes

About 3121 Arsenal St

When did 3121 Arsenal St, Saint Louis, MO last sell?

3121 Arsenal St, Saint Louis, MO last sold on Jul 31, 2017 for $90,000, according to the county's recorded deed.

How big is 3121 Arsenal St, Saint Louis, MO?

3121 Arsenal St, Saint Louis, MO has 1 bathrooms, 2,332 square feet of living space and a 0.11-acre lot.

When was 3121 Arsenal St, Saint Louis, MO built?

3121 Arsenal St, Saint Louis, MO was built in 1899, making it 127 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 3121 Arsenal St, Saint Louis, MO?

3121 Arsenal St, Saint Louis, MO is assigned to Roosevelt High School (high), rated F; Shenandoah Elementary School (elementary), rated F; Long Middle School (middle), rated F. All sit in St. Louis City School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3121 Arsenal St, Saint Louis, MO compare to other homes in Saint Louis 63118?

Among the 8,319 homes in Saint Louis 63118, it is bigger than 65% of them (2,332 ft² against a typical 2,064 ft²), its lot is bigger than 80% of them (0.11 ac against a typical 3,528 ft²) and it is newer than 40% of them (1899 against a typical 1905). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 3121 Arsenal St, Saint Louis, MO?

The 2025 property tax bill for 3121 Arsenal St, Saint Louis, MO was $2,138. The county assessed it at $25,770.

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