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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/337 S UNION AVE
/// BUILDING FILE · ROLL 2025

337 S UNION AVE.

Los Angeles, CA 90017 · APN 5153-003-039

/// 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

69

BUILDING SF

38,658

SF / UNIT

560

YEAR BUILT

1984

BEDROOMS

59

BATHROOMS

74

USE · CODE 0500

5+ UNITS

/// ASSESSED VALUE
LAND$574,792
IMPROVEMENTS$2,235,174
TOTAL$2,809,966
LAND BASE YEAR2011
OWNERSHIP TENUREAPPROX. 15 YEARS

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

/// LAST TRANSFER
RECORDEDJUN 5, 2015

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 90017

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
1316 LINWOOD AVE→JUL 2024EST.$6,450,000$716,667UNITS9526 S UNION AVE→MAY 2024EST.$4,200,000$140,000UNITS301344 W 4TH ST→APR 2024EST.$2,300,000$115,000UNITS20410 WITMER ST→FEB 2024EST.$1,475,000$73,750UNITS20811 S UNION AVE→MAY 2023EST.$3,200,000$106,667UNITS301136 W 6TH ST→MAR 2023EST.$17,500,000$416,667UNITS421454 W 3RD ST→JAN 2023EST.$2,900,000$107,407UNITS27450 WITMER ST→JAN 2023EST.$3,126,000$130,250UNITS24

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

/// COMPARE

Buildings like this one.

ON S UNION AVE · ZIP 90017

319 S UNION AVE→4 UNITS · BUILT 1913 · FOURPLEX323 S UNION AVE→4 UNITS · BUILT 1913 · TRIPLEX327 S UNION AVE→10 UNITS · BUILT 1951 · 5+ UNITS333 S UNION AVE→12 UNITS · BUILT 1910 · 5+ UNITS400 S UNION AVE→8 UNITS · BUILT 1921 · 5+ UNITS401 S UNION AVE→13 UNITS · BUILT 1922 · 5+ UNITS

SIMILAR SIZE AND ERA IN 90017

1209 W 8TH ST→72 UNITS · BUILT 1998 · 77,364 SF1322 INGRAHAM ST→44 UNITS · BUILT 1990 · 22,461 SF1562 W 4TH ST→44 UNITS · BUILT 1992 · 30,530 SF825 GREEN AVE→52 UNITS · BUILT 1991 · 40,080 SF
EVERY BUILDING IN 90017 →
/// COMMON QUESTIONS · 337 S UNION AVE

The short answers.

Is 337 S Union 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 337 S Union Ave have?

County records list 69 units at 337 S Union Ave, classified as 5+ units across 38,658 square feet of building area, averaging about 560 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 337 S Union Ave built?

The assessor roll gives a build year of 1984, 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 337 S Union Ave last change hands?

The most recent transfer on the roll was recorded June 2015. 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 337 S Union Ave assessed at, and is that what it is worth?

The current assessed value is $2,809,966 ($574,792 land, $2,235,174 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 15 years.

Would the owner of 337 S Union Ave face a big tax bill on a sale?

Possibly. A base year going back roughly 15 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 337 S Union 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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