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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/21051 LASSEN ST
/// BUILDING FILE · ROLL 2025

21051 LASSEN ST.

Los Angeles, CA 91311 · APN 2747-003-026

/// 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

94

BUILDING SF

50,990

SF / UNIT

542

YEAR BUILT

1976

BEDROOMS

—

BATHROOMS

94

USE · CODE 0501

5+ UNITS

/// ASSESSED VALUE
LAND$584,518
IMPROVEMENTS$3,038,030
TOTAL$3,622,548
LAND BASE YEAR1977
OWNERSHIP TENUREAPPROX. 49 YEARS

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

/// LAST TRANSFER
RECORDEDDEC 30, 1975

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 COVERED BY LA RSO

Built 1976 in the City of Los Angeles with 94 units — pre-October 1978 multifamily inside city limits is generally under the Rent Stabilization Ordinance, capping annual increases and restricting evictions.

HOW LA RSO WORKS →INFERRED FROM PUBLIC RECORDS — VERIFY WITH LAHD / ZIMAS BEFORE RELYING ON IT.
/// ZIP 91311

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
10507 MASON AVE→NOV 2024EST.$1,560,000$780,000UNITS210227 MASON AVE→SEP 2024EST.$12,966,541$259,331UNITS5022332 LASSEN ST→MAY 2024EST.$1,100,000$550,000UNITS220010 HAWKS HILL RD→APR 2024EST.$4,995,000$2,497,500UNITS210547 VARIEL AVE→NOV 2023EST.$1,188,000$594,000UNITS211450 POEMA PL→OCT 2023EST.$22,771,989$392,621UNITS5811451 POEMA PL→OCT 2023EST.$6,204,000$387,750UNITS1611500 POEMA PL→OCT 2023EST.$34,530,000$359,688UNITS96

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

/// COMPARE

Buildings like this one.

ON LASSEN ST · ZIP 91311

20929 LASSEN ST→39 UNITS · BUILT 1976 · 5+ UNITS20949 LASSEN ST→33 UNITS · BUILT 1976 · 5+ UNITS21025 LASSEN ST→61 UNITS · BUILT 1977 · 5+ UNITS21717 LASSEN ST→38 UNITS · BUILT 1978 · 5+ UNITS21727 LASSEN ST→7 UNITS · BUILT 1976 · 5+ UNITS21733 LASSEN ST→7 UNITS · BUILT 1976 · 5+ UNITS

SIMILAR SIZE AND ERA IN 91311

10009 DE SOTO AVE→61 UNITS · BUILT 1963 · 43,616 SF10025 DE SOTO AVE→104 UNITS · BUILT 1979 · 71,112 SF10141 DE SOTO AVE→98 UNITS · BUILT 1977 · 63,032 SF10200 DE SOTO AVE→86 UNITS · BUILT 1963 · 85,705 SF10340 CANOGA AVE→59 UNITS · BUILT 1989 · 56,696 SF10405 CANOGA AVE→61 UNITS · BUILT 1964 · 55,674 SF
EVERY BUILDING IN 91311 →RSO, 5–12 UNITS →
/// COMMON QUESTIONS · 21051 LASSEN ST

The short answers.

Is 21051 Lassen St rent controlled?

Built 1976 in the City of Los Angeles with 94 units — pre-October 1978 multifamily inside city limits is generally under the Rent Stabilization Ordinance, capping annual increases and restricting evictions. 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 21051 Lassen St have?

County records list 94 units at 21051 Lassen St, classified as 5+ units across 50,990 square feet of building area, averaging about 542 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 21051 Lassen St built?

The assessor roll gives a build year of 1976, 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 21051 Lassen St last change hands?

The most recent transfer on the roll was recorded December 1975. 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 21051 Lassen St assessed at, and is that what it is worth?

The current assessed value is $3,622,548 ($584,518 land, $3,038,030 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 49 years.

Would the owner of 21051 Lassen St face a big tax bill on a sale?

Possibly. A base year going back roughly 49 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 21051 Lassen 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.

WHAT'S IT WORTH_TALK TO SHAYA →

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