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CondominiumResidential

4620 15th St

BOULDER, CO 80304
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
1998
Year BuiltThe year the home was originally built, according to county records.
1
ParkingThe number of parking spaces on the property, including the garage.
Built 19984 units1,371–1,404 ft²
$2.5M
All units combinedThe sum of our current value estimates for every unit in the building — roughly what the whole building's homes are worth together.
$652K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$470
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-26.0%vs the Boulder ZIP median sale $/ft² ($635)

Sales Performance

$585K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
—
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
1
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
25.0%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+3.6%per yeartypical hold 4.1 yrsfrom 11 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
20052006201020132015201620212025
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
20052006201020132015201620212025

15 arms-length sales on record for this building.

Unit Mix & Floor PlansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.

3 bed
4 units
Recurring floor plansThe building's recurring floor plans, found by grouping units with identical beds, baths and square footage in county records. Larger groups are the building's standard layouts; leftover units have one-off sizes.
3 bd · 2.3 ba · 1,371 ft²
2 units
One-off layouts
2 units

Value DistributionHow the building's units spread across value ranges by our current estimates. A wide spread usually means big differences in size, floor or view.

$569K–$569K
1 unit
$635K–$635K
1 unit
$668K–$675K
2 units

Ownership & Financing

Owner-occupiedThe share of units where the owner lives in the unit, per county records. The rest are second homes or rentals.25%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.25%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.6.2 yrs
Cash purchases (5 yrs)The share of purchases in the last 5 years with no mortgage recorded. High cash share is common in second-home and investor buildings.100%
Avg. loan-to-valueAverage current loan balance against unit value across the building. Low numbers mean owners hold lots of equity — a sign of financial stability.36%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$639,193
Median tax billThe middle annual property tax bill among the building's units.$4,393
Pre-foreclosure noticesUnits with an active pre-foreclosure or foreclosure notice on file.0

Recent SalesThe latest recorded arms-length sales in the building, newest first.

Unit BNov 24, 2025$585,240Unit AJun 16, 2021$625,500Unit COct 28, 2019$565,000Unit DJul 31, 2019$585,000Unit DJul 27, 2016$540,000Unit CSep 22, 2015$430,000Unit DJan 13, 2015$408,000Unit BMay 31, 2013$375,000Unit AApr 2, 2013$363,000Unit AApr 1, 2010$347,000

Values are TopHap estimates, not appraisals. Sales, ownership and tax figures come from recorded county documents via ATTOM and can lag by several weeks.

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
Lot (acres)The size of the land the home sits on, from county records.0.34
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.Carport (Unspecified)
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.Porch · 81 ft²

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Crest View Elementary SchoolA-
Elementary · Grades KG–5 · 0.5 mi
M
Centennial Middle SchoolA-
Middle · Grades 6–8 · 1.1 mi
H
Boulder High SchoolC
High · Grades 9–12 · 3.1 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%

All UnitsEvery property record the county has at this street address, such as the units in a condo building. Prices shown are our estimates, not asking prices.

4620 15th St # A
3 bd · 2.3 ba · 1,371 ft²
$675K
4620 15th St # B
3 bd · 2.3 ba · 1,404 ft²
$569K
4620 15th St # C
3 bd · 2.5 ba · 1,404 ft²
$635K
4620 15th St # D
3 bd · 2.3 ba · 1,371 ft²
$668K

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

About 4620 15th St

How many units are in 4620 15th St, Boulder, CO?

4620 15th St, Boulder, CO has 4 residential units across built in 1998, according to county assessor records.

What is a unit at 4620 15th St, Boulder, CO worth?

The median TopHap Estimate across the 4 units at 4620 15th St, Boulder, CO is $651,611. That works out to $470 per square foot. Units run from 1,371 to 1,404 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 4620 15th St, Boulder, CO expensive for Boulder?

Units at 4620 15th St, Boulder, CO carry a median of $470 per square foot, 26% below the Boulder median of $635 per square foot.

How often do units sell at 4620 15th St, Boulder, CO?

1 units at 4620 15th St, Boulder, CO sold in the last 12 months, out of 15 recorded arms-length sales all time. That is a turnover rate of 25.0% of the building per year. The median sale over that period was $585K.

Have units at 4620 15th St, Boulder, CO appreciated?

Across 11 repeat sales of the same unit, 4620 15th St, Boulder, CO returned a median 3.6% per year. Because each pair is the same unit bought and sold, the figure is not distorted by which units traded. The median owner held for 4.1 years.

What floor plans does 4620 15th St, Boulder, CO have?

The most common plan at 4620 15th St, Boulder, CO is a 3-bedroom of 1,371 square feet, repeated 2 times, with a median estimate of $671,611. TopHap identifies 1 recurring plans in the building.

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