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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/1823 PENN MAR AVE
/// BUILDING FILE · ROLL 2025

1823 PENN MAR AVE.

S El Monte, CA 91733 · APN 8114-015-018

/// 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

2,954

SF / UNIT

1,477

YEAR BUILT

1989

BEDROOMS

6

BATHROOMS

4

USE · CODE 0200

DUPLEX

/// ASSESSED VALUE
LAND$237,874
IMPROVEMENTS$315,422
TOTAL$553,296
LAND BASE YEAR1995
OWNERSHIP TENUREAPPROX. 31 YEARS

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

/// LAST TRANSFER
RECORDEDMAR 14, 2017

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 91733

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
3043 POTRERO AVE→DEC 2024EST.$3,751,123$267,937UNITS142439 MOUNTAIN VIEW RD→DEC 2024EST.$680,000—UNITS—10813 ELLIOTT AVE→DEC 2024EST.$1,300,000$325,000UNITS410405 BODGER ST→DEC 2024EST.$2,677,000$223,083UNITS122527 MERCED AVE→DEC 2024EST.$1,047,000$349,000UNITS31933 PARKWAY DR→DEC 2024EST.$955,000$477,500UNITS22463 TAMORA AVE→NOV 2024EST.$855,000$427,500UNITS22467 TAMORA AVE→NOV 2024EST.$855,000$427,500UNITS2

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

/// COMPARE

Buildings like this one.

ON PENN MAR AVE · ZIP 91733

1706 PENN MAR AVE→2 UNITS · BUILT 1944 · DUPLEX1709 PENN MAR AVE→2 UNITS · BUILT 1941 · DUPLEX1715 PENN MAR AVE→3 UNITS · BUILT 1948 · TRIPLEX1716 PENN MAR AVE→2 UNITS · BUILT 1971 · DUPLEX1722 PENN MAR AVE→2 UNITS · BUILT 1938 · DUPLEX1728 PENN MAR AVE→2 UNITS · BUILT 1941 · DUPLEX

SIMILAR SIZE AND ERA IN 91733

10356 ENLOE ST→2 UNITS · BUILT 1978 · 4,413 SF11112 SCHMIDT RD→2 UNITS · BUILT 1993 · 2,838 SF12516 RUSH ST→2 UNITS · BUILT 1999 · 3,279 SF1707 LEAFDALE AVE→2 UNITS · BUILT 2001 · 3,925 SF1716 LEAFDALE AVE→2 UNITS · BUILT 1987 · 2,628 SF1827 FRUITVALE AVE→2 UNITS · BUILT 1981 · 2,624 SF
EVERY BUILDING IN 91733 →
/// COMMON QUESTIONS · 1823 PENN MAR AVE

The short answers.

Is 1823 Penn Mar 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 1823 Penn Mar Ave have?

County records list 2 units at 1823 Penn Mar Ave, classified as duplex across 2,954 square feet of building area, averaging about 1,477 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 1823 Penn Mar Ave 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 1823 Penn Mar Ave last change hands?

The most recent transfer on the roll was recorded March 2017. 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 1823 Penn Mar Ave assessed at, and is that what it is worth?

The current assessed value is $553,296 ($237,874 land, $315,422 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 31 years.

Would the owner of 1823 Penn Mar Ave face a big tax bill on a sale?

Possibly. A base year going back roughly 31 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 1823 Penn Mar 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.

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