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Single Family ResidenceResidential
$2,467,661$667 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $2,472,500 on May 18, 2026

1021 9TH ST

BOULDER, CO 80302
5
Beds
3.3
Baths
3,700 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
2025
Year BuiltThe year the home was originally built, according to county records.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$2.5M
$2.3M low$2.6M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$2,472,500 · May 18, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,413 (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.$163,629 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$82,090
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$81,539
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$67,263
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$2,406,300

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.55
45
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
46
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
74
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
21
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
89
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%
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.minimal

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
CountyBOULDER
Lot (acres)The size of the land the home sits on, from county records.0.14
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Central
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

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
Flatirons Elementary SchoolA
Elementary · Grades KG–5 · 0.2 mi
H
Boulder High SchoolC
High · Grades 9–12 · 0.7 mi
M
Manhattan School of Arts and AcademicsA-
Middle · Grades 6–8 · 3.0 mi

District: Boulder Valley School District Re-2

Neighborhood · ZIP 80302These 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.134
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.37%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.27%
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.31,245
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.324 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$82,366
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$127,191
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.22 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.69%

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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

1021 9th 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 more than 97% of homes in Boulder County
  • Costs more per square foot than 90% of homes in Boulder County
  • Bigger than 90% of homes in Boulder County
  • Has a smaller lot than 95% of homes in Grant
  • Among the newest homes in Grant

What homes are worth in Boulder 80302

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

This home
$294K$4.6M

This home is worth more than 88% of homes in Boulder 80302.

How it measures up in Boulder 80302

The dot is this home. The mark in the middle is the typical home in Boulder 80302.

Estimated value$2,467,661
CheaperTypical $1,116,272Pricier

Pricier than 88% of homes nearby

Price per ft²$667
CheaperTypical $637Pricier

Pricier than 55% of homes nearby

Living area3,700 ft²
SmallerTypical 2,016 ft²Bigger

Bigger than 87% of homes nearby

Lot size0.14 ac
SmallerTypical 0.24 acBigger

Bigger than 25% of homes nearby

Year built2025
OlderTypical 1970Newer

Newer than almost all homes nearby

How 1021 9th St ranks against every home in each area.
MeasureThis homeGrantBoulder 80302Boulder County
Estimated valuepricier than$2,467,66157% of homes88% of homes97% of homes
Price per ft²pricier than$66720% of homes55% of homes90% of homes
Living areabigger than3,700 ft²73% of homes87% of homes90% of homes
Lot sizebigger than0.14 ac5% of homes25% of homes27% of homes
Year builtnewer than2025almost all homesalmost all homesalmost all homes

About 1021 9th St

How much is 1021 9th St, Boulder, CO worth?

The TopHap Estimate for 1021 9th St, Boulder, CO is $2,467,661 as of Oct 21, 2026. The likely range is $2,342,212 to $2,593,110. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 1021 9th St, Boulder, CO last sell?

1021 9th St, Boulder, CO last sold on May 18, 2026 for $2,472,500, according to the county's recorded deed.

How big is 1021 9th St, Boulder, CO?

1021 9th St, Boulder, CO has 5 bedrooms, 3.3 bathrooms, 3,700 square feet of living space and a 0.14-acre lot.

When was 1021 9th St, Boulder, CO built?

1021 9th St, Boulder, CO was built in 2025, making it 1 years old.

What schools serve 1021 9th St, Boulder, CO?

1021 9th St, Boulder, CO is assigned to Flatirons Elementary School (elementary), rated A; Boulder High School (high), rated C; Manhattan School of Arts and Academics (middle), 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 1021 9th St, Boulder, CO compare to other homes in Boulder 80302?

Among the 7,990 homes in Boulder 80302, it is worth more than 88% of them ($2,467,661 against a typical $1,116,272), its price per square foot is higher than 55% of them ($667 against a typical $637), it is bigger than 87% of them (3,700 ft² against a typical 2,016 ft²), its lot is bigger than 25% of them (0.14 ac against a typical 0.24 ac) and it is newer than almost all of them (2025 against a typical 1970). Measured against all of Boulder County, it is worth more than 97% 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 1021 9th St, Boulder, CO?

The 2025 property tax bill for 1021 9th St, Boulder, CO was $6,413. The county assessed it at $163,629.

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