Skip to content
Skip to content
TopHapOpen in map
CondominiumResidential

21901 Dupont St

CHATSWORTH, CA 91311
2.22 ac
Lot SizeThe size of the land the home sits on, from county records.
1980
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
Built 198040 units1,179–1,371 ft²
$22M
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.
$556K
Median unit valueThe middle unit value in this building by our estimate: half the units are worth more, half less.
$446
Median $/ft²The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.

-11.1%vs the Chatsworth ZIP median sale $/ft² ($502)

Sales Performance

$564K
Median sale (12 mo)The middle sale price among this building's units that sold in the last 12 months, from recorded deeds.
-2.8%
1-yr changeHow the building's median sale price over the last 12 months compares with the 12 months before that.
2
Sales (12 mo)Units in this building that sold in the last 12 months, from recorded arms-length deeds.
5.0%
Turnover (12 mo)The share of units that changed hands in the last 12 months. Around 4–6% a year is typical; much higher can signal investor churn or a wave of exits.
This building's own appreciationThe building's own appreciation: for every unit that sold twice (held over a year), we compute its yearly price change between the two sales and take the middle value. This is the cleanest read on how this specific building performs, because it compares each unit to itself.
+5.0%per yeartypical hold 6.5 yrsfrom 64 same-unit resales
Median sale price (yearly, all time)Every recorded arms-length sale in the building since records begin, grouped by year: the bars count sales and the line tracks the median price paid.MedianSales
19881994199820032009201520202026
Sale price per ft² (yearly, all time)The middle price per square foot across the building's units, by our current estimates. Useful for comparing units of different sizes.$/ft²
19881994199820032009201520202026

104 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.

Every unit: size vs estimated valueEvery unit in the building as one dot: across is its size, up is our current value estimate, and color is its bedroom count. Vertical columns of dots are recurring floor plans; the height spread within a column shows how much floor, view and condition move prices for the same layout.
$521K$556K$590K$624K1,179 ft²1,217 ft²1,256 ft²1,294 ft²1,333 ft²1,371 ft²
2 bd3 bd
2 bed
30 units
3 bed
10 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.
2 bd · 3 ba · 1,281 ft²
12 units
2 bd · 3 ba · 1,247 ft²
11 units
3 bd · 3 ba · 1,371 ft²
8 units
2 bd · 3 ba · 1,179 ft²
4 units
2 bd · 3 ba · 1,213 ft²
3 units
3 bd · 3 ba · 1,304 ft²
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.

$521K–$534K
5 units
$535K–$545K
8 units
$551K–$558K
10 units
$563K–$572K
5 units
$573K–$585K
6 units
$592K–$596K
3 units
$612K–$624K
3 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.55%
Company-ownedUnits owned through an LLC, trust, or other company — a rough proxy for investor ownership.40%
Typical owner tenureThe middle number of years since each unit last changed hands — how long the current owners have been in place.16.0 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.22%
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.49%
Median owner equityThe middle dollar amount of equity (value minus loans) unit owners hold in this building.$575,271
Median tax billThe middle annual property tax bill among the building's units.$4,455
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 19Oct 6, 2026$557,000Unit 12Mar 12, 2026$570,000Unit 17Sep 10, 2025$580,000Unit 8Oct 9, 2024$600,000Unit 13Apr 17, 2024$610,000Unit 18Jun 20, 2023$570,000Unit 14May 19, 2023$542,000Unit 15Feb 14, 2023$565,000Unit 30May 18, 2022$585,000Unit 34Jan 23, 2020$420,000

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.Contemporary
CountyLOS ANGELES
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Wood Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.Yes

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

E
Chatsworth Park Elementary SchoolA-
Elementary · Grades KG–5 · 0.3 mi
M
Ernest Lawrence Middle SchoolB-
Middle · Grades 6–8 · 0.7 mi
H
Chatsworth Charter High SchoolB-
High · Grades 9–12 · 1.2 mi

District: Los Angeles Unified School District

Neighborhood · ZIP 91311These 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.71
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.110
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.542

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.8%
PopulationHow many people live in this area.39,425
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,548 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$107,306
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$137,663
Average tempThe average temperature here across a full year.63°F
Annual precipHow much rain and melted snow falls here in a typical year.20 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.73%

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.

21901 Dupont St
2 bd · 3 ba · 1,281 ft²
$579K
21901 Dupont St
2 bd · 3 ba · 1,247 ft²
$557K
21901 Dupont St # 3
3 bd · 3 ba · 1,371 ft²
$539K
21901 Dupont St # 4
3 bd · 3 ba · 1,371 ft²
$530K
21901 Dupont St # 5
2 bd · 3 ba · 1,247 ft²
$521K
21901 Dupont St # 6
2 bd · 3 ba · 1,281 ft²
$551K
21901 Dupont St # 7
2 bd · 3 ba · 1,247 ft²
$554K
21901 Dupont St # 8
2 bd · 3 ba · 1,281 ft²
$612K
21901 Dupont St
2 bd · 3 ba · 1,247 ft²
$556K
21901 Dupont St # 10
2 bd · 3 ba · 1,281 ft²
$596K
21901 Dupont St # 11
2 bd · 3 ba · 1,247 ft²
$553K
21901 Dupont St # 12
2 bd · 3 ba · 1,281 ft²
$572K
21901 Dupont St # 13
3 bd · 3 ba · 1,371 ft²
$624K
21901 Dupont St # 14
2 bd · 3 ba · 1,247 ft²
$558K
21901 Dupont St # 15
2 bd · 3 ba · 1,281 ft²
$595K
21901 Dupont St # 16
2 bd · 3 ba · 1,247 ft²
$535K
21901 Dupont St # 17
2 bd · 3 ba · 1,281 ft²
$585K
21901 Dupont St # 18
2 bd · 3 ba · 1,247 ft²
$592K
21901 Dupont St
2 bd · 3 ba · 1,281 ft²
$570K
21901 Dupont St # 20
2 bd · 3 ba · 1,247 ft²
$563K
21901 Dupont St
3 bd · 3 ba · 1,371 ft²
$534K
21901 Dupont St # 22
3 bd · 3 ba · 1,371 ft²
$537K
21901 Dupont St # 23
2 bd · 3 ba · 1,247 ft²
$541K
21901 Dupont St # 24
2 bd · 3 ba · 1,281 ft²
$554K
21901 Dupont St # 25
2 bd · 3 ba · 1,247 ft²
$541K
21901 Dupont St # 26
2 bd · 3 ba · 1,281 ft²
$566K
21901 Dupont St # 27
3 bd · 3 ba · 1,371 ft²
$533K
21901 Dupont St # 28
3 bd · 3 ba · 1,304 ft²
$570K
21901 Dupont St # 29
2 bd · 3 ba · 1,179 ft²
$556K
21901 Dupont St # 30
2 bd · 3 ba · 1,213 ft²
$621K
21901 Dupont St # 31
2 bd · 3 ba · 1,179 ft²
$555K
21901 Dupont St # 32
2 bd · 3 ba · 1,213 ft²
$543K
21901 Dupont St # 33
2 bd · 3 ba · 1,179 ft²
$555K
21901 Dupont St # 34
2 bd · 3 ba · 1,213 ft²
$573K
21901 Dupont St # 35
2 bd · 3 ba · 1,179 ft²
$545K
21901 Dupont St # 36
3 bd · 3 ba · 1,304 ft²
$576K
21901 Dupont St # 37
3 bd · 3 ba · 1,371 ft²
$541K
21901 Dupont St # 38
2 bd · 3 ba · 1,281 ft²
$579K
21901 Dupont St # 39
2 bd · 3 ba · 1,281 ft²
$575K
21901 Dupont St # 40
3 bd · 3 ba · 1,371 ft²
$533K

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

About 21901 Dupont St

How many units are in 21901 Dupont St, Chatsworth, CA?

21901 Dupont St, Chatsworth, CA has 40 residential units across built in 1980, according to county assessor records.

What is a unit at 21901 Dupont St, Chatsworth, CA worth?

The median TopHap Estimate across the 40 units at 21901 Dupont St, Chatsworth, CA is $555,646. That works out to $446 per square foot. Units run from 1,179 to 1,371 square feet. Estimates are modelled from recorded sales and assessments, not appraisals.

Is 21901 Dupont St, Chatsworth, CA expensive for Chatsworth?

Units at 21901 Dupont St, Chatsworth, CA carry a median of $446 per square foot, 11% below the Chatsworth median of $502 per square foot.

How often do units sell at 21901 Dupont St, Chatsworth, CA?

2 units at 21901 Dupont St, Chatsworth, CA sold in the last 12 months, out of 104 recorded arms-length sales all time. That is a turnover rate of 5.0% of the building per year. The median sale over that period was $564K.

Have units at 21901 Dupont St, Chatsworth, CA appreciated?

Across 64 repeat sales of the same unit, 21901 Dupont St, Chatsworth, CA returned a median 5.0% 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 6.5 years.

What floor plans does 21901 Dupont St, Chatsworth, CA have?

The most common plan at 21901 Dupont St, Chatsworth, CA is a 2-bedroom of 1,281 square feet, repeated 12 times, with a median estimate of $576,607. TopHap identifies 6 recurring plans in the building.

More homes on Dupont St

Closest homes

More homes in Chatsworth 91311

Assigned schools

Explore the area

See this home in context

Open 21901 Dupont 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