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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/661 W 4TH ST
/// BUILDING FILE · ROLL 2025

661 W 4TH ST.

Pomona, CA 91766 · APN 8341-006-018

/// 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

4

BUILDING SF

2,746

SF / UNIT

687

YEAR BUILT

1900

BEDROOMS

6

BATHROOMS

4

USE · CODE 0400

FOURPLEX

/// ASSESSED VALUE
LAND$232,114
IMPROVEMENTS$191,495
TOTAL$423,609
LAND BASE YEAR2017
OWNERSHIP TENUREAPPROX. 9 YEARS

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

/// LAST TRANSFER
RECORDEDAPR 12, 2018

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 91766

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
794 W 8TH ST→DEC 2024EST.$715,000$357,500UNITS21190 S THOMAS ST, UNIT A→DEC 2024EST.$786,800$393,400UNITS2563 E FRANKLIN AVE→DEC 2024EST.$699,000$349,500UNITS2870 W 9TH ST→DEC 2024EST.$600,000$300,000UNITS21326 S PARK AVE→DEC 2024EST.$1,048,800$262,200UNITS4795 W 12TH ST→DEC 2024EST.$715,000$357,500UNITS2305 E GRAND AVE→DEC 2024EST.$1,075,000$268,750UNITS41163 W 3RD ST→DEC 2024EST.$642,000$321,000UNITS2

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

/// COMPARE

Buildings like this one.

ON W 4TH ST · ZIP 91766

1010 W 4TH ST→3 UNITS · BUILT 1924 · TRIPLEX1022 W 4TH ST→2 UNITS · BUILT 1948 · DUPLEX1023 W 4TH ST→2 UNITS · BUILT 1926 · DUPLEX1032 W 4TH ST→3 UNITS · BUILT 1931 · TRIPLEX1043 W 4TH ST→2 UNITS · BUILT 1926 · DUPLEX1072 W 4TH ST→2 UNITS · BUILT 1925 · DUPLEX

SIMILAR SIZE AND ERA IN 91766

1004 HANSEN AVE→4 UNITS · BUILT 1886 · 3,212 SF466 E PHILLIPS BLVD→4 UNITS · BUILT 1908 · 3,263 SF617 W 4TH ST→4 UNITS · BUILT 1914 · 3,145 SF629 W 8TH ST→4 UNITS · BUILT 1910 · 4,398 SF633 W 7TH ST→4 UNITS · BUILT 1912 · 2,014 SF705 E PHILLIPS BLVD→4 UNITS · BUILT 1912 · 2,548 SF
EVERY BUILDING IN 91766 →BUILT BEFORE 1930 →
/// COMMON QUESTIONS · 661 W 4TH ST

The short answers.

Is 661 W 4th 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 661 W 4th St have?

County records list 4 units at 661 W 4th St, classified as fourplex across 2,746 square feet of building area, averaging about 687 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 661 W 4th St built?

The assessor roll gives a build year of 1900, 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 661 W 4th St last change hands?

The most recent transfer on the roll was recorded April 2018. 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 661 W 4th St assessed at, and is that what it is worth?

The current assessed value is $423,609 ($232,114 land, $191,495 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 661 W 4th 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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