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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/409 21ST ST
/// BUILDING FILE · ROLL 2025

409 21ST ST.

Manhattan Beach, CA 90266 · APN 4178-016-012

/// 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

2,220

SF / UNIT

1,110

YEAR BUILT

1964

BEDROOMS

6

BATHROOMS

2

USE · CODE 0200

DUPLEX

/// ASSESSED VALUE
LAND$129,044
IMPROVEMENTS$111,255
TOTAL$240,299
LAND BASE YEAR1976
OWNERSHIP TENUREAPPROX. 50 YEARS

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

/// LAST TRANSFER
RECORDEDAUG 23, 2018

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 90266

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
524 MANHATTAN BEACH BLVD→DEC 2024EST.$2,025,000$1,012,500UNITS22120 THE STRAND→DEC 2024EST.$12,000,000$1,714,286UNITS7212 MARINE AVE→DEC 2024EST.$3,100,000$1,033,333UNITS31400 15TH ST→DEC 2024EST.$2,550,000$1,275,000UNITS21406 17TH ST→DEC 2024EST.$1,600,000$800,000UNITS24206 HIGHLAND AVE→NOV 2024EST.$2,315,000$1,157,500UNITS2225 EL PORTO ST→NOV 2024EST.$2,115,000$1,057,500UNITS22609 CREST DR→NOV 2024EST.$2,975,000$1,487,500UNITS2

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

/// COMPARE

Buildings like this one.

ON 21ST ST · ZIP 90266

120 21ST ST→2 UNITS · BUILT 1921 · DUPLEX121 21ST ST→2 UNITS · BUILT 1952 · DUPLEX127 21ST ST→2 UNITS · BUILT 1936 · DUPLEX209 21ST ST→2 UNITS · BUILT 2005 · DUPLEX213 21ST ST→2 UNITS · BUILT 1948 · DUPLEX228 21ST ST→3 UNITS · BUILT 1924 · TRIPLEX

SIMILAR SIZE AND ERA IN 90266

100 40TH ST→2 UNITS · BUILT 1955 · 1,819 SF1007 HIGHLAND AVE→2 UNITS · BUILT 1953 · 1,531 SF1010 JOHNSON ST→2 UNITS · BUILT 1955 · 1,416 SF105 HIGHLAND AVE, UNIT→2 UNITS · BUILT 1974 · 2,480 SF107 S AVIATION BLVD→2 UNITS · BUILT 1956 · 1,971 SF112 38TH ST→2 UNITS · BUILT 1969 · 1,820 SF
EVERY BUILDING IN 90266 →
/// COMMON QUESTIONS · 409 21ST ST

The short answers.

Is 409 21st St 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 409 21st St have?

County records list 2 units at 409 21st St, classified as duplex across 2,220 square feet of building area, averaging about 1,110 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 409 21st St built?

The assessor roll gives a build year of 1964, 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 409 21st St last change hands?

The most recent transfer on the roll was recorded August 2018. 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 409 21st St assessed at, and is that what it is worth?

The current assessed value is $240,299 ($129,044 land, $111,255 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 50 years.

Would the owner of 409 21st St face a big tax bill on a sale?

Possibly. A base year going back roughly 50 years usually means a low tax basis, and a low basis means a large taxable gain on a straight sale — capital gains plus depreciation recapture, with California taxing gains at ordinary income rates. It is also why long-held buildings so often sell through a 1031 exchange instead, or pass through an estate for the step-up in basis.

How do I find out what 409 21st St 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.

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