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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/509 N 1ST ST
/// BUILDING FILE · ROLL 2025

509 N 1ST ST.

Alhambra, CA 91801 · APN 5337-011-002

/// 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

4

BUILDING SF

5,390

SF / UNIT

1,348

YEAR BUILT

1966

BEDROOMS

8

BATHROOMS

6

USE · CODE 0400

FOURPLEX

/// ASSESSED VALUE
LAND$630,799
IMPROVEMENTS$489,297
TOTAL$1,120,096
LAND BASE YEAR2021
OWNERSHIP TENUREAPPROX. 5 YEARS

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

/// LAST TRANSFER
RECORDEDJAN 26, 2021
EST. PRICE (2021)$1,034,796
EST. $/UNIT$258,699

PRICE ESTIMATED FROM ASSESSOR REASSESSMENT AT SALE — NOT A VERIFIED CLOSING PRICE.

/// 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 91801

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
120 W GRAND AVE→DEC 2024EST.$7,470,000$415,000UNITS181400 W PINE ST→DEC 2024EST.$1,925,000$385,000UNITS5218 N BUSHNELL AVE→DEC 2024EST.$1,820,000$606,667UNITS32003 VINE ST→DEC 2024EST.$1,180,000$590,000UNITS23216 SHERWOOD AVE→DEC 2024EST.$875,000$437,500UNITS2525 HOWARD ST→NOV 2024EST.$1,635,000$272,500UNITS6421 S 5TH ST→NOV 2024EST.$1,280,000$640,000UNITS2124 S ALMANSOR ST→NOV 2024EST.$348,960$174,480UNITS2

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

/// COMPARE

Buildings like this one.

ON N 1ST ST · ZIP 91801

1000 N 1ST ST→7 UNITS · BUILT 1959 · 5+ UNITS101 N 1ST ST→4 UNITS · BUILT 1949 · FOURPLEX1010 N 1ST ST→12 UNITS · BUILT 1929 · 5+ UNITS104 N 1ST ST→12 UNITS · BUILT 1940 · 5+ UNITS105 N 1ST ST→17 UNITS · BUILT 1947 · 5+ UNITS108 N 1ST ST→24 UNITS · BUILT 1951 · 5+ UNITS

SIMILAR SIZE AND ERA IN 91801

100 N EL MOLINO ST→4 UNITS · BUILT 1965 · 5,604 SF1033 S GARFIELD AVE→4 UNITS · BUILT 1952 · 3,394 SF104 N ATLANTIC BLVD→4 UNITS · BUILT 1979 · 4,286 SF1120 SAINT CHARLES TER→4 UNITS · BUILT 1964 · 6,109 SF121 LOS HIGOS ST→4 UNITS · BUILT 1964 · 2,926 SF1211 N MONTEREY ST→4 UNITS · BUILT 1951 · 2,836 SF
EVERY BUILDING IN 91801 →
/// COMMON QUESTIONS · 509 N 1ST ST

The short answers.

Is 509 N 1st St 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 509 N 1st St have?

County records list 4 units at 509 N 1st St, classified as fourplex across 5,390 square feet of building area, averaging about 1,348 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 509 N 1st St built?

The assessor roll gives a build year of 1966, 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 509 N 1st St last sell, and for how much?

The last recorded transfer was January 2021, at an estimated $1,034,796 — about $258,699 per unit. That price is estimated from the Proposition 13 reassessment recorded at sale, not a verified closing price, so treat it as a close approximation rather than a confirmed figure.

What is 509 N 1st St assessed at, and is that what it is worth?

The current assessed value is $1,120,096 ($630,799 land, $489,297 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 509 N 1st 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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