Skip to content
Skip to content
TopHapOpen in map
CondominiumResidential
$966,382$708 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $420,000 on Jun 2, 2011

2311 WALNUT ST

BOULDER, CO 80302
Building report
4
Beds
3
Baths
1,364 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1951
Year BuiltThe year the home was originally built, according to county records.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$966K
$883K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$420,000 · Jun 2, 2011

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,032 (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.$67,912 (2026)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$67,912
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$62,419
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$998,700

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.9 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.11%
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.Condominium
StyleThe architectural style of the home, such as ranch or colonial.Condo/Apartment
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.2006
Lot (acres)The size of the land the home sits on, from county records.0.16
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
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 · 113 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
Whittier International Elementary SchoolB
Elementary · Grades KG–5 · 0.3 mi
H
Boulder High SchoolC
High · Grades 9–12 · 0.7 mi
M
Casey Middle SchoolC+
Middle · Grades 6–8 · 0.8 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%

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

2311 Walnut 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 69% of homes in Boulder County
  • Costs more per square foot than 92% of homes in Boulder County
  • Smaller than 73% of homes in Boulder County
  • Has a bigger lot than 69% of homes in Whittier
  • Older than 92% of homes in Boulder County

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
$291K$4.2M

This home is worth more than 42% 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$966,382
CheaperTypical $1,126,401Pricier

Pricier than 42% of homes nearby

Price per ft²$708
CheaperTypical $634Pricier

Pricier than 62% of homes nearby

Living area1,364 ft²
SmallerTypical 2,013 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.16 ac
SmallerTypical 0.24 acBigger

Bigger than 37% of homes nearby

Year built1951
OlderTypical 1970Newer

Newer than 32% of homes nearby

How 2311 Walnut St ranks against every home in each area.
MeasureThis homeWhittierBoulder 80302Boulder County
Estimated valuepricier than$966,38254% of homes42% of homes69% of homes
Price per ft²pricier than$70848% of homes62% of homes92% of homes
Living areabigger than1,364 ft²50% of homes31% of homes27% of homes
Lot sizebigger than0.16 ac69% of homes37% of homes40% of homes
Year builtnewer than195135% of homes32% of homes8% of homes

About 2311 Walnut St

How much is 2311 Walnut St, Boulder, CO worth?

The TopHap Estimate for 2311 Walnut St, Boulder, CO is $966,382 as of Sep 24, 2026. The likely range is $882,878 to $1,049,886. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 2311 Walnut St, Boulder, CO last sell?

2311 Walnut St, Boulder, CO last sold on Jun 2, 2011 for $420,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 2311 Walnut St, Boulder, CO?

2311 Walnut St, Boulder, CO has 4 bedrooms, 3 bathrooms, 1,364 square feet of living space and a 0.16-acre lot.

When was 2311 Walnut St, Boulder, CO built?

2311 Walnut St, Boulder, CO was built in 1951, making it 75 years old. It is a condo/apartment home.

What schools serve 2311 Walnut St, Boulder, CO?

2311 Walnut St, Boulder, CO is assigned to Whittier International Elementary School (elementary), rated B; Boulder High School (high), rated C; Casey Middle School (middle), rated C+. All sit in Boulder Valley School District Re-2. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 2311 Walnut St, Boulder, CO compare to other homes in Boulder 80302?

Among the 7,990 homes in Boulder 80302, it is worth more than 42% of them ($966,382 against a typical $1,126,401), its price per square foot is higher than 62% of them ($708 against a typical $634), it is bigger than 31% of them (1,364 ft² against a typical 2,013 ft²), its lot is bigger than 37% of them (0.16 ac against a typical 0.24 ac) and it is newer than 32% of them (1951 against a typical 1970). Measured against all of Boulder County, it is worth more than 69% 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 2311 Walnut St, Boulder, CO?

The 2025 property tax bill for 2311 Walnut St, Boulder, CO was $6,032. The county assessed it at $67,912.

More homes on Walnut St

Closest homes

More homes in Boulder 80302

Assigned schools

Explore the area

See this home in context

Open 2311 Walnut 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