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Single Family ResidenceResidential
$655,684$528 / 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 85How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

100 12TH ST

JAMESTOWN, CO 80455
2
Beds
2
Baths
1,243 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.
5.95 ac
Lot SizeThe size of the land the home sits on, from county records.
1990
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$656K
$559K low$753K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,511 (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.$47,586 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$9,894
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$37,692
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$43,738
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$699,800

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.17 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyBOULDER
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.Electric
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.Deck · 591 ft²

Transaction History(7)

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
Jamestown Elementary School
Elementary · Grades KG–5 · 0.2 mi
M
Centennial Middle SchoolB
Middle · Grades 6–8 · 7.8 mi
H
Boulder High SchoolA+
High · Grades 9–12 · 9.0 mi

District: Boulder Valley School District Re-2

Neighborhood · ZIP 80455These 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.170
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 100.51

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.73%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.43%
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.1.1%
PopulationHow many people live in this area.463
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.28 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$131,312
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$152,313
Average tempThe average temperature here across a full year.39°F
Annual precipHow much rain and melted snow falls here in a typical year.24 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.69%

Owner Tools

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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

100 12th 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 75% of homes in Jamestown 80455
  • Costs more per square foot than 88% of homes in Jamestown 80455
  • Smaller than 78% of homes in Boulder County
  • Has a bigger lot than 97% of homes in Boulder County
  • Newer than 75% of homes in Jamestown 80455

What homes are worth in Jamestown 80455

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

This home
$197K$1M

This home is worth more than 75% of homes in Jamestown 80455.

How it measures up in Jamestown 80455

The dot is this home. The mark in the middle is the typical home in Jamestown 80455.

Estimated value$655,684
CheaperTypical $523,837Pricier

Pricier than 75% of homes nearby

Price per ft²$528
CheaperTypical $364Pricier

Pricier than 88% of homes nearby

Living area1,243 ft²
SmallerTypical 1,426 ft²Bigger

Bigger than 40% of homes nearby

Lot size5.95 ac
SmallerTypical 0.89 acBigger

Bigger than 87% of homes nearby

Year built1990
OlderTypical 1970Newer

Newer than 75% of homes nearby

How 100 12th St ranks against every home in each area.
MeasureThis homeJamestown 80455Boulder County
Estimated valuepricier than$655,68475% of homes42% of homes
Price per ft²pricier than$52888% of homes78% of homes
Living areabigger than1,243 ft²40% of homes22% of homes
Lot sizebigger than5.95 ac87% of homes97% of homes
Year builtnewer than199075% of homes58% of homes

About 100 12th St

How much is 100 12th St, Jamestown, CO worth?

The TopHap Estimate for 100 12th St, Jamestown, CO is $655,684 as of Aug 30, 2026. The likely range is $558,809 to $752,559. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 100 12th St, Jamestown, CO last sell?

100 12th St, Jamestown, CO last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 100 12th St, Jamestown, CO?

100 12th St, Jamestown, CO has 2 bedrooms, 2 bathrooms and 1,243 square feet of living space.

When was 100 12th St, Jamestown, CO built?

100 12th St, Jamestown, CO was built in 1990, making it 36 years old. It is a ranch home. The building has 1 story.

What schools serve 100 12th St, Jamestown, CO?

100 12th St, Jamestown, CO is assigned to Jamestown Elementary School (elementary); Centennial Middle School (middle), rated B; 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 100 12th St, Jamestown, CO compare to other homes in Jamestown 80455?

Among the 273 homes in Jamestown 80455, it is worth more than 75% of them ($655,684 against a typical $523,837), its price per square foot is higher than 88% of them ($528 against a typical $364), it is bigger than 40% of them (1,243 ft² against a typical 1,426 ft²), its lot is bigger than 87% of them (5.95 ac against a typical 0.89 ac) and it is newer than 75% of them (1990 against a typical 1970). Measured against all of Boulder County, it is worth more than 42% 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 100 12th St, Jamestown, CO?

The 2025 property tax bill for 100 12th St, Jamestown, CO was $4,511. The county assessed it at $47,586.

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