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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/1501 PROSPECT AVE
/// BUILDING FILE · ROLL 2025

1501 PROSPECT AVE.

San Gabriel, CA 91776 · APN 5360-015-050

/// 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

11

BUILDING SF

10,992

SF / UNIT

999

YEAR BUILT

1988

BEDROOMS

22

BATHROOMS

22

USE · CODE 0500

5+ UNITS

/// ASSESSED VALUE
LAND$790,782
IMPROVEMENTS$1,512,058
TOTAL$2,302,840
LAND BASE YEAR2003
OWNERSHIP TENUREAPPROX. 23 YEARS

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

/// LAST TRANSFER
RECORDEDDEC 22, 2022

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 91776

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
712 PEARL ST→DEC 2024EST.$1,530,000$765,000UNITS25635 N CHARLOTTE AVE→NOV 2024EST.$930,000$310,000UNITS3110 E MISSION RD→NOV 2024EST.$600,000$300,000UNITS2114 E MISSION RD→NOV 2024EST.$600,000$300,000UNITS21957 LAFAYETTE ST→NOV 2024EST.$1,100,000$550,000UNITS2242 S WALNUT GROVE AVE→NOV 2024EST.$2,492,000$623,000UNITS4902 S GLADYS AVE→OCT 2024EST.$974,000$487,000UNITS2908 S GLADYS AVE→OCT 2024EST.$1,548,000$387,000UNITS4

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

/// COMPARE

Buildings like this one.

ON PROSPECT AVE · ZIP 91776

1315 PROSPECT AVE→26 UNITS · BUILT 1965 · 5+ UNITS1320 PROSPECT AVE→2 UNITS · BUILT 1953 · DUPLEX1330 PROSPECT AVE, NO A→4 UNITS · BUILT 1965 · FOURPLEX1405 PROSPECT AVE→24 UNITS · BUILT 1987 · 5+ UNITS1415 PROSPECT AVE→8 UNITS · BUILT 1985 · 5+ UNITS1419 PROSPECT AVE→2 UNITS · BUILT 1930 · DUPLEX

SIMILAR SIZE AND ERA IN 91776

115 S WALNUT GROVE AVE→6 UNITS · BUILT 1979 · 6,164 SF119 W LIVE OAK ST→12 UNITS · BUILT 1973 · 14,598 SF120 W LIVE OAK ST→12 UNITS · BUILT 1973 · 11,524 SF1311 STEVENS AVE→8 UNITS · BUILT 1987 · 6,373 SF1317 STEVENS AVE→8 UNITS · BUILT 1987 · 6,373 SF1408 NEW AVE→16 UNITS · BUILT 1988 · 16,040 SF
EVERY BUILDING IN 91776 →
/// COMMON QUESTIONS · 1501 PROSPECT AVE

The short answers.

Is 1501 Prospect 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 1501 Prospect Ave have?

County records list 11 units at 1501 Prospect Ave, classified as 5+ units across 10,992 square feet of building area, averaging about 999 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 1501 Prospect Ave built?

The assessor roll gives a build year of 1988, 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 1501 Prospect Ave last change hands?

The most recent transfer on the roll was recorded December 2022. 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 1501 Prospect Ave assessed at, and is that what it is worth?

The current assessed value is $2,302,840 ($790,782 land, $1,512,058 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 23 years.

Would the owner of 1501 Prospect Ave face a big tax bill on a sale?

Possibly. A base year going back roughly 23 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 1501 Prospect 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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