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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/15661 COBALT ST
/// BUILDING FILE · ROLL 2025

15661 COBALT ST.

Los Angeles, CA 91342 · APN 2604-010-011

/// 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

2,861

SF / UNIT

1,431

YEAR BUILT

1951

BEDROOMS

5

BATHROOMS

3

USE · CODE 0200

DUPLEX

/// ASSESSED VALUE
LAND$209,352
IMPROVEMENTS$235,593
TOTAL$444,945
LAND BASE YEAR2004
OWNERSHIP TENUREAPPROX. 22 YEARS

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

/// LAST TRANSFER
RECORDEDAUG 23, 2021

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 COVERED BY LA RSO

Built 1951 in the City of Los Angeles with 2 units — pre-October 1978 multifamily inside city limits is generally under the Rent Stabilization Ordinance, capping annual increases and restricting evictions.

HOW LA RSO WORKS →INFERRED FROM PUBLIC RECORDS — VERIFY WITH LAHD / ZIMAS BEFORE RELYING ON IT.
/// ZIP 91342

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
9859 FOOTHILL BLVD→DEC 2024EST.$1,446,999$723,500UNITS212965 LITTLE TUJUNGA CANYON RD→DEC 2024EST.$1,701,000$850,500UNITS214631 ASTORIA ST→NOV 2024EST.$1,016,000$508,000UNITS215076 ROXFORD ST→NOV 2024EST.$550,000$275,000UNITS213720 GLADSTONE AVE→OCT 2024EST.$1,472,000$490,667UNITS313906 REX ST→SEP 2024EST.$1,050,000$525,000UNITS215100 NURMI ST→AUG 2024EST.$800,000$400,000UNITS213755 GLENOAKS BLVD→JUL 2024EST.$981,600$490,800UNITS2

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

/// COMPARE

Buildings like this one.

ON COBALT ST · ZIP 91342

14660 COBALT ST→2 UNITS · BUILT 1962 · DUPLEX14666 COBALT ST→3 UNITS · BUILT 2018 · TRIPLEX14702 COBALT ST→2 UNITS · BUILT 1949 · DUPLEX14720 COBALT ST→3 UNITS · BUILT 1948 · TRIPLEX14862 COBALT ST→2 UNITS · BUILT 1951 · DUPLEX14934 COBALT ST→3 UNITS · BUILT 1946 · TRIPLEX

SIMILAR SIZE AND ERA IN 91342

10201 FOOTHILL BLVD→2 UNITS · BUILT 1946 · 3,945 SF10468 FOOTHILL BLVD→2 UNITS · BUILT 1947 · 2,442 SF10601 FOOTHILL BLVD→2 UNITS · BUILT 1949 · 1,983 SF11238 OSBORNE ST→2 UNITS · BUILT 1947 · 3,182 SF11467 KAMLOOPS ST→2 UNITS · BUILT 1947 · 1,816 SF11508 KELOWNA ST→2 UNITS · BUILT 1954 · 1,924 SF
EVERY BUILDING IN 91342 →RSO, 5–12 UNITS →
/// COMMON QUESTIONS · 15661 COBALT ST

The short answers.

Is 15661 Cobalt St rent controlled?

Built 1951 in the City of Los Angeles with 2 units — pre-October 1978 multifamily inside city limits is generally under the Rent Stabilization Ordinance, capping annual increases and restricting evictions. 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 15661 Cobalt St have?

County records list 2 units at 15661 Cobalt St, classified as duplex across 2,861 square feet of building area, averaging about 1,431 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 15661 Cobalt St built?

The assessor roll gives a build year of 1951, 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 15661 Cobalt St last change hands?

The most recent transfer on the roll was recorded August 2021. 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 15661 Cobalt St assessed at, and is that what it is worth?

The current assessed value is $444,945 ($209,352 land, $235,593 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 22 years.

Would the owner of 15661 Cobalt St face a big tax bill on a sale?

Possibly. A base year going back roughly 22 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 15661 Cobalt 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.

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