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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/528 SEFTON AVE
/// BUILDING FILE · ROLL 2025

528 SEFTON AVE.

Monterey Park, CA 91755 · APN 5259-006-046

/// 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

2

BUILDING SF

1,832

SF / UNIT

916

YEAR BUILT

1915

BEDROOMS

4

BATHROOMS

2

USE · CODE 0200

DUPLEX

/// ASSESSED VALUE
LAND$314,008
IMPROVEMENTS$187,145
TOTAL$501,153
LAND BASE YEAR2012
OWNERSHIP TENUREAPPROX. 14 YEARS

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

/// LAST TRANSFER
RECORDEDOCT 17, 2019

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 91755

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
802 E HELLMAN AVE→DEC 2024EST.$993,000$331,000UNITS3335 E NEWMARK AVE→NOV 2024EST.$960,000$480,000UNITS2533 ELIZABETH AVE→OCT 2024EST.$1,580,000$395,000UNITS4401 FLORENCE AVE→OCT 2024EST.$1,280,000$640,000UNITS2914 E MABEL AVE→SEP 2024EST.$1,200,000$600,000UNITS2300 RUSSELL AVE→SEP 2024EST.$1,435,000$717,500UNITS2405 SEFTON AVE→AUG 2024EST.$2,173,694$217,369UNITS10535 N ORANGE AVE→AUG 2024EST.$955,000$477,500UNITS2

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

/// COMPARE

Buildings like this one.

ON SEFTON AVE · ZIP 91755

118 SEFTON AVE→2 UNITS · BUILT 1940 · DUPLEX201 SEFTON AVE→2 UNITS · BUILT 1930 · DUPLEX212 SEFTON AVE→2 UNITS · BUILT 1949 · DUPLEX325 SEFTON AVE→2 UNITS · BUILT 1951 · DUPLEX333 SEFTON AVE→6 UNITS · BUILT 1948 · 5+ UNITS338 SEFTON AVE→LAND

SIMILAR SIZE AND ERA IN 91755

1010 E EMERSON AVE→2 UNITS · BUILT 1923 · 2,150 SF110 E NEWMARK AVE→2 UNITS · BUILT 1925 · 2,016 SF110 N LINCOLN AVE→2 UNITS · BUILT 1912 · 1,632 SF112 GLADYS AVE→2 UNITS · BUILT 1916 · 2,034 SF118 E NEWMARK AVE→2 UNITS · BUILT 1924 · 2,342 SF119 N NEW AVE→2 UNITS · BUILT 1927 · 2,000 SF
EVERY BUILDING IN 91755 →BUILT BEFORE 1930 →
/// COMMON QUESTIONS · 528 SEFTON AVE

The short answers.

Is 528 Sefton 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 528 Sefton Ave have?

County records list 2 units at 528 Sefton Ave, classified as duplex across 1,832 square feet of building area, averaging about 916 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 528 Sefton Ave built?

The assessor roll gives a build year of 1915, 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 528 Sefton Ave last change hands?

The most recent transfer on the roll was recorded October 2019. 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 528 Sefton Ave assessed at, and is that what it is worth?

The current assessed value is $501,153 ($314,008 land, $187,145 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 14 years.

How do I find out what 528 Sefton 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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