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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/3681 KEYSTONE AVE
/// BUILDING FILE · ROLL 2025

3681 KEYSTONE AVE.

Los Angeles, CA 90034 · APN 4314-010-017

/// 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

1,200

SF / UNIT

600

YEAR BUILT

1940

BEDROOMS

—

BATHROOMS

—

USE · CODE 0200

DUPLEX

/// ASSESSED VALUE
LAND$434,490
IMPROVEMENTS$195,514
TOTAL$630,004
LAND BASE YEAR2003
OWNERSHIP TENUREAPPROX. 23 YEARS

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

/// LAST TRANSFER
RECORDEDJUL 30, 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 1940 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 90034

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
3602 KEYSTONE AVE→DEC 2024EST.$1,796,339$179,634UNITS103747 MENTONE AVE→DEC 2024EST.$1,735,468$192,830UNITS95869 DAUPHIN ST→DEC 2024EST.$1,515,750$378,938UNITS43647 VINTON AVE→DEC 2024EST.$2,400,000$266,667UNITS92612 CHARITON ST→DEC 2024EST.$1,305,000$326,250UNITS43765 DELMAS TER→DEC 2024EST.$1,504,467—UNITS—3755 JASMINE AVE→DEC 2024EST.$3,504,512$350,451UNITS101916 S ROBERTSON BLVD→DEC 2024EST.$3,450,000$345,000UNITS10

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

/// COMPARE

Buildings like this one.

ON KEYSTONE AVE · ZIP 90034

3310 KEYSTONE AVE→10 UNITS · BUILT 1957 · 5+ UNITS3311 KEYSTONE AVE→8 UNITS · BUILT 1962 · 5+ UNITS3314 KEYSTONE AVE→9 UNITS · BUILT 1967 · 5+ UNITS3317 KEYSTONE AVE→8 UNITS · BUILT 1961 · 5+ UNITS3320 KEYSTONE AVE→9 UNITS · BUILT 1966 · 5+ UNITS3321 KEYSTONE AVE→9 UNITS · BUILT 1988 · 5+ UNITS

SIMILAR SIZE AND ERA IN 90034

10520 VALPARAISO ST→2 UNITS · BUILT 1952 · 1,418 SF10617 ROSE AVE→2 UNITS · BUILT 1946 · 1,908 SF10618 WOODBINE ST→2 UNITS · BUILT 1954 · 1,464 SF10621 ROSE AVE→2 UNITS · BUILT 1946 · 1,872 SF10639 WOODBINE ST→2 UNITS · BUILT 1940 · 1,081 SF10713 TABOR ST→2 UNITS · BUILT 1941 · 2,177 SF
EVERY BUILDING IN 90034 →RSO, 5–12 UNITS →
/// COMMON QUESTIONS · 3681 KEYSTONE AVE

The short answers.

Is 3681 Keystone Ave rent controlled?

Built 1940 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 3681 Keystone Ave have?

County records list 2 units at 3681 Keystone Ave, classified as duplex across 1,200 square feet of building area, averaging about 600 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 3681 Keystone Ave built?

The assessor roll gives a build year of 1940, 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 3681 Keystone Ave last change hands?

The most recent transfer on the roll was recorded July 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 3681 Keystone Ave assessed at, and is that what it is worth?

The current assessed value is $630,004 ($434,490 land, $195,514 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 3681 Keystone 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 3681 Keystone 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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