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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/12052 UNION ST
/// BUILDING FILE · ROLL 2025

12052 UNION ST.

Norwalk, CA 90650 · APN 8048-030-027

/// 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

2,698

SF / UNIT

899

YEAR BUILT

2018

BEDROOMS

6

BATHROOMS

5

USE · CODE 0300

TRIPLEX

/// ASSESSED VALUE
LAND$249,980
IMPROVEMENTS$466,284
TOTAL$716,264
LAND BASE YEAR2015
OWNERSHIP TENUREAPPROX. 11 YEARS

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

/// LAST TRANSFER
RECORDEDMAR 27, 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 EXEMPT (NEW CONSTRUCTION)

Built 2018 — buildings under 15 years old are exempt from AB 1482; the state cap applies once the building turns 15.

AB 1482 VS RSO →INFERRED FROM PUBLIC RECORDS — VERIFY WITH LAHD / ZIMAS BEFORE RELYING ON IT.
/// ZIP 90650

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
11124 EXCELSIOR DR→DEC 2024EST.$5,600,000$233,333UNITS2413108 CURTIS AND KING RD→NOV 2024EST.$1,840,000$460,000UNITS413412 NORWALK BLVD→OCT 2024EST.$1,180,000$295,000UNITS411645 MAPLEDALE ST→OCT 2024EST.$4,800,000$300,000UNITS1610908 LEFFINGWELL RD→SEP 2024EST.$2,000,000$153,846UNITS1312110 FOSTER RD→AUG 2024EST.$550,000$275,000UNITS213404 NORWALK BLVD→AUG 2024EST.$1,658,000$414,500UNITS412044 SYCAMORE ST→JUN 2024EST.$1,028,000$342,667UNITS3

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

/// COMPARE

Buildings like this one.

ON UNION ST · ZIP 90650

11870 UNION ST→2 UNITS · BUILT 1950 · DUPLEX11938 UNION ST→4 UNITS · BUILT 1969 · FOURPLEX12004 UNION ST→2 UNITS · BUILT 1948 · DUPLEX12030 UNION ST→4 UNITS · BUILT 1963 · FOURPLEX12034 UNION ST, APT 0003→4 UNITS · BUILT 1962 · FOURPLEX12040 UNION ST→3 UNITS · BUILT 1991 · TRIPLEX

SIMILAR SIZE AND ERA IN 90650

11855 SPROUL ST→3 UNITS · BUILT 2006 · 2,876 SF11884 SPROUL ST→3 UNITS · BUILT 2004 · 4,094 SF
EVERY BUILDING IN 90650 →
/// COMMON QUESTIONS · 12052 UNION ST

The short answers.

Is 12052 Union St rent controlled?

Built 2018 — buildings under 15 years old are exempt from AB 1482; the state cap applies once the building turns 15. 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 12052 Union St have?

County records list 3 units at 12052 Union St, classified as triplex across 2,698 square feet of building area, averaging about 899 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 12052 Union St built?

The assessor roll gives a build year of 2018, 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 12052 Union St last change hands?

The most recent transfer on the roll was recorded March 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 12052 Union St assessed at, and is that what it is worth?

The current assessed value is $716,264 ($249,980 land, $466,284 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 11 years.

How do I find out what 12052 Union 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 →

NOT SELLING? GET DEALS LIKE THIS FIRST →