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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/10821 HARTSOOK ST
/// BUILDING FILE · ROLL 2025

10821 HARTSOOK ST.

Los Angeles, CA 91601 · APN 2419-008-027

/// 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

3

BUILDING SF

1,698

SF / UNIT

566

YEAR BUILT

1946

BEDROOMS

3

BATHROOMS

3

USE · CODE 0300

TRIPLEX

/// ASSESSED VALUE
LAND$1,018,759
IMPROVEMENTS$679,173
TOTAL$1,697,932
LAND BASE YEAR2022
OWNERSHIP TENUREAPPROX. 4 YEARS

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

/// LAST TRANSFER
RECORDEDMAR 4, 2024

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 1946 in the City of Los Angeles with 3 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 91601

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
11227 HATTERAS ST→DEC 2024EST.$925,000$185,000UNITS55508 CAMELLIA AVE→DEC 2024EST.$2,900,000$725,000UNITS45525 ELMER AVE→DEC 2024EST.$1,550,000$387,500UNITS45316 CAHUENGA BLVD→DEC 2024EST.$1,475,000$184,375UNITS85550 DENNY AVE→DEC 2024EST.$2,400,000$300,000UNITS85932 LEMP AVE→DEC 2024EST.$2,347,919$586,980UNITS411040 HESBY ST→DEC 2024EST.$6,650,000$350,000UNITS1911492 ALBERS ST→DEC 2024EST.$885,000$442,500UNITS2

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

/// COMPARE

Buildings like this one.

ON HARTSOOK ST · ZIP 91601

10801 HARTSOOK ST→3 UNITS · BUILT 1946 · TRIPLEX10822 HARTSOOK ST→1 UNITS · BUILT 1989 · FOURPLEX10827 HARTSOOK ST→3 UNITS · BUILT 1947 · TRIPLEX10828 HARTSOOK ST→1 UNITS · BUILT 1938 · DUPLEX10833 HARTSOOK ST→3 UNITS · BUILT 1948 · TRIPLEX10839 HARTSOOK ST→2 UNITS · BUILT 1938 · DUPLEX

SIMILAR SIZE AND ERA IN 91601

10413 CHANDLER BLVD, APT 000B→4 UNITS · BUILT 1954 · 2,802 SF10521 CALIFA ST→3 UNITS · BUILT 1950 · 2,023 SF10603 ADDISON ST→3 UNITS · BUILT 1953 · 3,301 SF10743 CUMPSTON ST→3 UNITS · BUILT 1955 · 1,708 SF10769 ADDISON ST→3 UNITS · BUILT 1951 · 2,352 SF10802 MORRISON ST→3 UNITS · BUILT 1946 · 2,456 SF
EVERY BUILDING IN 91601 →RSO, 5–12 UNITS →
/// COMMON QUESTIONS · 10821 HARTSOOK ST

The short answers.

Is 10821 Hartsook St rent controlled?

Built 1946 in the City of Los Angeles with 3 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 10821 Hartsook St have?

County records list 3 units at 10821 Hartsook St, classified as triplex across 1,698 square feet of building area, averaging about 566 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 10821 Hartsook St built?

The assessor roll gives a build year of 1946, 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 10821 Hartsook St last change hands?

The most recent transfer on the roll was recorded March 2024. 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 10821 Hartsook St assessed at, and is that what it is worth?

The current assessed value is $1,697,932 ($1,018,759 land, $679,173 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.

How do I find out what 10821 Hartsook 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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