Skip to content
Skip to content
TopHapOpen in map
Multi-Family Dwellings (Generic, Any Combination)Residential
Last sold for $580,000 on Apr 15, 2004

3125 ARNETT ST

BOULDER, CO 80304
4
Beds
4
Baths
4,122 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1969
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
12
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$580,000 · Apr 15, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,520 (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.$93,541 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$59,344
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$34,197
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$85,975
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,375,600

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.3 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.0.2 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.Multi-Family Dwellings (Generic, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyBOULDER
Lot (acres)The size of the land the home sits on, from county records.0.18
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
HeatingThe type of heating system in the home.Hot Water
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 · 142 ft²

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.

E
Columbine Elementary SchoolC
Elementary · Grades PK–5 · 0.3 mi
M
Casey Middle SchoolC
Middle · Grades 6–8 · 1.1 mi
H
Boulder High SchoolA+
High · Grades 9–12 · 1.4 mi

District: Boulder Valley School District Re-2

Neighborhood · ZIP 80304These 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.126
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.46

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.33%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.26,373
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,813 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$119,821
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$151,092
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.19 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.69%

Owner Tools

Do you own this home?
Claim this home

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

3125 Arnett 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 94% of homes in Boulder County
  • Older than 76% of homes in Boulder County

How it measures up in Boulder 80304

The dot is this home. The mark in the middle is the typical home in Boulder 80304.

Living area4,122 ft²
SmallerTypical 1,965 ft²Bigger

Bigger than 91% of homes nearby

Lot size0.18 ac
SmallerTypical 0.18 acBigger

Bigger than 51% of homes nearby

Year built1969
OlderTypical 1979Newer

Newer than 35% of homes nearby

How 3125 Arnett St ranks against every home in each area.
MeasureThis homeBoulder 80304Boulder County
Living areabigger than4,122 ft²91% of homes94% of homes
Lot sizebigger than0.18 ac51% of homes53% of homes
Year builtnewer than196935% of homes24% of homes

About 3125 Arnett St

When did 3125 Arnett St, Boulder, CO last sell?

3125 Arnett St, Boulder, CO last sold on Apr 15, 2004 for $580,000, according to the county's recorded deed.

How big is 3125 Arnett St, Boulder, CO?

3125 Arnett St, Boulder, CO has 4 bedrooms, 4 bathrooms, 4,122 square feet of living space and a 0.18-acre lot.

When was 3125 Arnett St, Boulder, CO built?

3125 Arnett St, Boulder, CO was built in 1969, making it 57 years old. It is a ranch home. The building has 1 story.

What schools serve 3125 Arnett St, Boulder, CO?

3125 Arnett St, Boulder, CO is assigned to Columbine Elementary School (elementary), rated C; Casey Middle School (middle), rated C; Boulder High School (high), rated A+. All sit in Boulder Valley School District Re-2. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3125 Arnett St, Boulder, CO compare to other homes in Boulder 80304?

Among the 10,450 homes in Boulder 80304, it is bigger than 91% of them (4,122 ft² against a typical 1,965 ft²), its lot is bigger than 51% of them (0.18 ac against a typical 0.18 ac) and it is newer than 35% of them (1969 against a typical 1979). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 3125 Arnett St, Boulder, CO?

The 2025 property tax bill for 3125 Arnett St, Boulder, CO was $8,520. The county assessed it at $93,541.

More homes on Arnett St

Closest homes

More homes in Boulder 80304

Assigned schools

Explore the area

See this home in context

Open 3125 Arnett St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map