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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/12300 OSBORNE PL
/// BUILDING FILE · ROLL 2025

12300 OSBORNE PL.

Los Angeles, CA 91331 · APN 2537-001-029

/// 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

50

BUILDING SF

51,642

SF / UNIT

1,033

YEAR BUILT

1989

BEDROOMS

98

BATHROOMS

98

USE · CODE 0500

5+ UNITS

/// ASSESSED VALUE
LAND$798,377
IMPROVEMENTS$1,596,769
TOTAL$2,395,146
LAND BASE YEAR1998
OWNERSHIP TENUREAPPROX. 28 YEARS

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

/// LAST TRANSFER
RECORDEDAUG 11, 2005

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 91331

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
10968 SUTTER AVE→DEC 2024EST.$950,000$237,500UNITS411779 DRONFIELD AVE→DEC 2024EST.$1,242,000$414,000UNITS310335 RINCON AVE→OCT 2024EST.$930,000$465,000UNITS213127 TERRA BELLA ST→SEP 2024EST.$948,999$316,333UNITS313343 VAN NUYS BLVD→SEP 2024EST.$1,711,000$427,750UNITS410852 SUTTER AVE→AUG 2024EST.$670,000$167,500UNITS412861 KAGEL CANYON ST→AUG 2024EST.$675,000$225,000UNITS312854 FILMORE ST→JUL 2024EST.$800,000$400,000UNITS2

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

/// COMPARE

Buildings like this one.

ON OSBORNE PL · ZIP 91331

12226 OSBORNE PL→28 UNITS · BUILT 1987 · 5+ UNITS12227 OSBORNE PL→108 UNITS · BUILT 1991 · 5+ UNITS12232 OSBORNE PL→64 UNITS · BUILT 2012 · 5+ UNITS12236 OSBORNE PL→43 UNITS · BUILT 1987 · 5+ UNITS12301 OSBORNE PL→34 UNITS · BUILT 1989 · 5+ UNITS12309 OSBORNE PL→21 UNITS · BUILT 2006 · 5+ UNITS

SIMILAR SIZE AND ERA IN 91331

10800 GLENOAKS BLVD→50 UNITS · BUILT 1984 · 31,903 SF10820 GLENOAKS BLVD→50 UNITS · BUILT 1984 · 35,312 SF11411 DRONFIELD AVE→52 UNITS · BUILT 1987 · 42,448 SF12569 VAN NUYS BLVD→62 UNITS · BUILT 1989 · 59,388 SF12793 MERCER ST→75 UNITS · BUILT 1998 · 55,326 SF12829 BRANFORD ST→65 UNITS · BUILT 1987 · 51,019 SF
EVERY BUILDING IN 91331 →
/// COMMON QUESTIONS · 12300 OSBORNE PL

The short answers.

Is 12300 Osborne Pl 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 12300 Osborne Pl have?

County records list 50 units at 12300 Osborne Pl, classified as 5+ units across 51,642 square feet of building area, averaging about 1,033 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 12300 Osborne Pl built?

The assessor roll gives a build year of 1989, which is after the October 1978 RSO cutoff. Age drives more than character here: it sets rent-cap exposure, seismic retrofit obligations, and what a lender will underwrite.

When did 12300 Osborne Pl last change hands?

The most recent transfer on the roll was recorded August 2005. 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 12300 Osborne Pl assessed at, and is that what it is worth?

The current assessed value is $2,395,146 ($798,377 land, $1,596,769 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 28 years.

Would the owner of 12300 Osborne Pl face a big tax bill on a sale?

Possibly. A base year going back roughly 28 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 12300 Osborne Pl 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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