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Single Family ResidenceResidential
$1,145,636$481 / 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 92How 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
Last sold for $392,000 on Jul 1, 2008

4231 PIEDRA PL

BOULDER, CO 80301
4
Beds
2.3
Baths
2,382 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.1M
$1.1M low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$392,000 · Jul 1, 2008

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,345 (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.$79,832 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$35,142
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$44,690
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$73,375
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,174,000

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.6 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.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.Split Level
CountyBOULDER
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2000
Lot (acres)The size of the land the home sits on, from county records.0.19
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.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, Attached
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 · 64 ft²

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.

M
Centennial Middle SchoolB
Middle · Grades 6–8 · 0.7 mi
E
Crest View Elementary SchoolB+
Elementary · Grades KG–5 · 1.0 mi
H
Boulder High SchoolA+
High · Grades 9–12 · 2.5 mi

District: Boulder Valley School District Re-2

Neighborhood · ZIP 80301These 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.106
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 100.50

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.37%
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.26,811
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.855 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$101,150
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$128,644
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.16 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

4231 Piedra Pl 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 85% of homes in Palo Park
  • Costs more per square foot than 76% of homes in Boulder 80301
  • Bigger than 82% of homes in Palo Park
  • Has a bigger lot than 75% of homes in Palo Park

What homes are worth in Boulder 80301

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

This home
$239K$2.5M

This home is worth more than 77% of homes in Boulder 80301.

How it measures up in Boulder 80301

The dot is this home. The mark in the middle is the typical home in Boulder 80301.

Estimated value$1,145,636
CheaperTypical $750,239Pricier

Pricier than 77% of homes nearby

Price per ft²$481
CheaperTypical $417Pricier

Pricier than 76% of homes nearby

Living area2,382 ft²
SmallerTypical 1,598 ft²Bigger

Bigger than 70% of homes nearby

Lot size0.19 ac
SmallerTypical 0.17 acBigger

Bigger than 54% of homes nearby

Year built1979
OlderTypical 1983Newer

Newer than 41% of homes nearby

How 4231 Piedra Pl ranks against every home in each area.
MeasureThis homePalo ParkBoulder 80301Boulder County
Estimated valuepricier than$1,145,63685% of homes77% of homes78% of homes
Price per ft²pricier than$48153% of homes76% of homes71% of homes
Living areabigger than2,382 ft²82% of homes70% of homes65% of homes
Lot sizebigger than0.19 ac75% of homes54% of homes55% of homes
Year builtnewer than197954% of homes41% of homes42% of homes

About 4231 Piedra Pl

How much is 4231 Piedra Pl, Boulder, CO worth?

The TopHap Estimate for 4231 Piedra Pl, Boulder, CO is $1,145,636 as of Aug 30, 2026. The likely range is $1,058,190 to $1,233,082. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4231 Piedra Pl, Boulder, CO last sell?

4231 Piedra Pl, Boulder, CO last sold on Jul 1, 2008 for $392,000, according to the county's recorded deed.

How big is 4231 Piedra Pl, Boulder, CO?

4231 Piedra Pl, Boulder, CO has 4 bedrooms, 2.3 bathrooms, 2,382 square feet of living space and a 0.19-acre lot.

When was 4231 Piedra Pl, Boulder, CO built?

4231 Piedra Pl, Boulder, CO was built in 1979, making it 47 years old. It is a split level home.

What schools serve 4231 Piedra Pl, Boulder, CO?

4231 Piedra Pl, Boulder, CO is assigned to Centennial Middle School (middle), rated B; Crest View Elementary School (elementary), 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 4231 Piedra Pl, Boulder, CO compare to other homes in Boulder 80301?

Among the 9,298 homes in Boulder 80301, it is worth more than 77% of them ($1,145,636 against a typical $750,239), its price per square foot is higher than 76% of them ($481 against a typical $417), it is bigger than 70% of them (2,382 ft² against a typical 1,598 ft²), its lot is bigger than 54% of them (0.19 ac against a typical 0.17 ac) and it is newer than 41% of them (1979 against a typical 1983). Measured against all of Boulder County, it is worth more than 78% 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 4231 Piedra Pl, Boulder, CO?

The 2025 property tax bill for 4231 Piedra Pl, Boulder, CO was $7,345. The county assessed it at $79,832.

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