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© 2026 SHAYA LOWENSTEIN · LYON STAHL INVESTMENT REAL ESTATE830 S PACIFIC COAST HWY, SUITE D-200, EL SEGUNDO, CA 90245SHAYA@LYONSTAHL.COM · DRE #01942326
BUILDINGS/21801 NEPTUNE AVE
/// BUILDING FILE · ROLL 2025

21801 NEPTUNE AVE.

Carson, CA 90745 · APN 7335-005-054

/// WHERE DO WE REACH YOU?

ONE EMAIL, USED TO KEEP THIS LIST AND TO TELL YOU IF A WATCHED BUILDING LISTS OR SELLS. UNSUBSCRIBE ANY TIME.

UNITS

2

BUILDING SF

1,269

SF / UNIT

635

YEAR BUILT

1950

BEDROOMS

3

BATHROOMS

2

USE · CODE 0200

DUPLEX

/// ASSESSED VALUE
LAND$236,756
IMPROVEMENTS$295,947
TOTAL$532,703
LAND BASE YEAR2016
OWNERSHIP TENUREAPPROX. 10 YEARS

PROP 13 ASSESSED VALUES — USUALLY WELL BELOW MARKET ON LONG-HELD BUILDINGS.

/// LAST TRANSFER
RECORDEDAPR 8, 2016

No market sale detected on this parcel since 2021. The last recorded transfer may have been a refinance, trust move, or family transfer that didn't reset the Prop 13 base.

/// RENT CONTROL

LIKELY UNDER AB 1482 STATE CAP (5% + CPI, MAX 10%)

Outside LA RSO coverage on these records — most California multifamily over 15 years old falls under the AB 1482 statewide cap of 5% plus CPI, never more than 10% per year.

AB 1482 VS RSO →INFERRED FROM PUBLIC RECORDS — VERIFY WITH LAHD / ZIMAS BEFORE RELYING ON IT.
/// ZIP 90745

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
332 W 214TH ST→DEC 2024EST.$1,415,000$471,667UNITS320848 JAMISON AVE→DEC 2024EST.$1,302,576$651,288UNITS2105 W CLARION DR→DEC 2024EST.$850,000$283,333UNITS321036 SHEARER AVE→DEC 2024EST.$710,000$355,000UNITS2334 1/2 E 220TH ST→NOV 2024EST.$2,100,000$420,000UNITS5229 E 219TH ST→OCT 2024EST.$2,000,000$285,714UNITS721028 MARTIN ST→JUL 2024EST.$750,000$375,000UNITS222121 AVALON BLVD→JUN 2024EST.$5,650,000$61,413UNITS92

PRICES ESTIMATED FROM ASSESSOR REASSESSMENT AT SALE (ASSESSED VALUE DEFLATED 2%/YR) — NOT VERIFIED CLOSING PRICES.

/// COMPARE

Buildings like this one.

SIMILAR SIZE AND ERA IN 90745

113 E 216TH ST→2 UNITS · BUILT 1947 · 1,914 SF1132 E LAUDER ST→2 UNITS · BUILT 1953 · 1,624 SF1218 E 213TH ST→2 UNITS · BUILT 1955 · 1,942 SF1224 E 213TH ST→2 UNITS · BUILT 1939 · 1,739 SF1244 E 213TH ST→2 UNITS · BUILT 1948 · 2,436 SF1260 E 213TH ST→2 UNITS · BUILT 1936 · 2,056 SF
EVERY BUILDING IN 90745 →
/// COMMON QUESTIONS · 21801 NEPTUNE AVE

The short answers.

Is 21801 Neptune Ave rent controlled?

Outside LA RSO coverage on these records — most California multifamily over 15 years old falls under the AB 1482 statewide cap of 5% plus CPI, never more than 10% per year. This is an inference from public assessor records, not a determination — confirm the certificate of occupancy date with the LA Housing Department or ZIMAS before you rely on it for pricing or notices.

How many units does 21801 Neptune Ave have?

County records list 2 units at 21801 Neptune Ave, classified as duplex across 1,269 square feet of building area, averaging about 635 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 21801 Neptune Ave built?

The assessor roll gives a build year of 1950, which puts it in the pre-1979 stock that the LA Rent Stabilization Ordinance generally covers inside city limits. Age drives more than character here: it sets rent-cap exposure, seismic retrofit obligations, and what a lender will underwrite.

When did 21801 Neptune Ave last change hands?

The most recent transfer on the roll was recorded April 2016. Not every recorded transfer is a market sale — refinances, trust transfers, and family conveyances all appear in the same field, and those do not reset the assessed value.

What is 21801 Neptune Ave assessed at, and is that what it is worth?

The current assessed value is $532,703 ($236,756 land, $295,947 improvements). Assessed value is not market value. Under Proposition 13 it resets only on a change of ownership and then climbs about 2% a year, so a long-held building is often assessed far below what it would trade for — and this one has held its base year for roughly 10 years.

How do I find out what 21801 Neptune Ave would sell for today?

Public records give you the frame — units, size, age, assessed value, when it last traded — but pricing needs in-place rents, expenses, and the condition of the units, none of which appear in county data. A broker valuation puts closed comps and a rent survey against the actual rent roll. Shaya Lowenstein does that free for LA multifamily owners, typically within 48 hours, with no obligation to list.

/// OWNER READING
WHAT IS MY BUILDING WORTH? →SELLING WITH TENANTS IN PLACE →HOW LA RSO WORKS →

Own this building?

FREE, CONFIDENTIAL VALUATION FROM CLOSED COMPS — 48H TURNAROUND.

WHAT'S IT WORTH_TALK TO SHAYA →

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