SKIP TO CONTENT
S.LOWENSTEIN
DEAL INDEXBUILDINGSMARKETSTOOLSGUIDESWHOCONTACTVALUATION_
VALUATION_
DEAL INDEXBUILDINGSMARKETSTOOLSGUIDESWHOCONTACTWHAT'S IT WORTH? →
THEME
DEAL INDEXBUILDINGSTRACK RECORDMARKETSMARKET REPORTTOOLSGUIDESDEAL ALERTSWATCHLISTWHOVALUATIONCONTACT
(323) 944-2221@SHAYASELLSLA
© 2026 SHAYA LOWENSTEIN · LYON STAHL INVESTMENT REAL ESTATE830 S PACIFIC COAST HWY, SUITE D-200, EL SEGUNDO, CA 90245SHAYA@LYONSTAHL.COM · DRE #01942326
BUILDINGS/1734 COGSWELL RD
/// BUILDING FILE · ROLL 2025

1734 COGSWELL RD.

South El Monte, CA 91733 · APN 8114-026-022

/// 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

6,514

SF / UNIT

3,257

YEAR BUILT

2007

BEDROOMS

9

BATHROOMS

7

USE · CODE 0200

DUPLEX

/// ASSESSED VALUE
LAND$508,768
IMPROVEMENTS$841,957
TOTAL$1,350,725
LAND BASE YEAR2005
OWNERSHIP TENUREAPPROX. 21 YEARS

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

/// LAST TRANSFER
RECORDEDJAN 10, 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 COGSWELL RD · ZIP 91733

1609 COGSWELL RD→2 UNITS · BUILT 1941 · DUPLEX1615 COGSWELL RD→2 UNITS · BUILT 1938 · DUPLEX1700 COGSWELL RD→2 UNITS · BUILT 1942 · DUPLEX1716 COGSWELL RD→2 UNITS · BUILT 2014 · DUPLEX1720 COGSWELL RD→2 UNITS · BUILT 1940 · DUPLEX1723 COGSWELL RD→2 UNITS · BUILT 1949 · DUPLEX

SIMILAR SIZE AND ERA IN 91733

10125 1/2 FERN ST→2 UNITS · BUILT 2005 · 3,291 SF10413 KLINGERMAN ST→2 UNITS · BUILT 2020 · 3,792 SF11112 SCHMIDT RD→2 UNITS · BUILT 1993 · 2,838 SF11241 KLINGERMAN ST→2 UNITS · BUILT 2015 · 4,234 SF12373 RUSH ST→2 UNITS · BUILT 2019 · 4,896 SF12516 RUSH ST→2 UNITS · BUILT 1999 · 3,279 SF
EVERY BUILDING IN 91733 →
/// COMMON QUESTIONS · 1734 COGSWELL RD

The short answers.

Is 1734 Cogswell Rd 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 1734 Cogswell Rd have?

County records list 2 units at 1734 Cogswell Rd, classified as duplex across 6,514 square feet of building area, averaging about 3,257 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 1734 Cogswell Rd built?

The assessor roll gives a build year of 2007, 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 1734 Cogswell Rd last change hands?

The most recent transfer on the roll was recorded January 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 1734 Cogswell Rd assessed at, and is that what it is worth?

The current assessed value is $1,350,725 ($508,768 land, $841,957 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 21 years.

Would the owner of 1734 Cogswell Rd face a big tax bill on a sale?

Possibly. A base year going back roughly 21 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 1734 Cogswell Rd 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 →

NOT SELLING? GET DEALS LIKE THIS FIRST →