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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/10201 MOUNTAIR AVE
/// BUILDING FILE · ROLL 2025

10201 MOUNTAIR AVE.

Los Angeles Ca 91042, CA 91042 · APN 2558-023-071

/// 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

10

BUILDING SF

16,017

SF / UNIT

1,602

YEAR BUILT

2015

BEDROOMS

26

BATHROOMS

28

USE · CODE 0500

5+ UNITS

/// ASSESSED VALUE
LAND$392,974
IMPROVEMENTS$2,730,180
TOTAL$3,123,154
LAND BASE YEAR2010
OWNERSHIP TENUREAPPROX. 16 YEARS

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

/// LAST TRANSFER
RECORDEDAUG 25, 2009

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 EXEMPT (NEW CONSTRUCTION)

Built 2015 — buildings under 15 years old are exempt from AB 1482; the state cap applies once the building turns 15.

AB 1482 VS RSO →INFERRED FROM PUBLIC RECORDS — VERIFY WITH LAHD / ZIMAS BEFORE RELYING ON IT.
/// ZIP 91042

Recent sales nearby.

ADDRESSSOLDEST. PRICEEST. $/UNITUNITS
10253 COMMERCE AVE→DEC 2024EST.$418,861$209,430UNITS27064 GREELEY ST→DEC 2024EST.$4,050,000$450,000UNITS910030 PINEWOOD AVE→DEC 2024EST.$1,050,000$350,000UNITS310155 SILVERTON AVE→DEC 2024EST.$2,700,000$192,857UNITS1410207 HELENDALE AVE→NOV 2024EST.$745,000$372,500UNITS27727 APPERSON ST→OCT 2024EST.$740,000$370,000UNITS27137 GREELEY ST→OCT 2024EST.$2,600,000$325,000UNITS87636 DAY ST→OCT 2024EST.$720,000$360,000UNITS2

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

/// COMPARE

Buildings like this one.

ON MOUNTAIR AVE · ZIP 91042

10050 MOUNTAIR AVE→39 UNITS · BUILT 1964 · 5+ UNITS10062 MOUNTAIR AVE→3 UNITS · BUILT 1947 · TRIPLEX10063 MOUNTAIR AVE→8 UNITS · BUILT 1987 · 5+ UNITS10069 MOUNTAIR AVE→2 UNITS · BUILT 1948 · DUPLEX10109 MOUNTAIR AVE→4 UNITS · BUILT 1962 · FOURPLEX10118 MOUNTAIR AVE→9 UNITS · BUILT 1947 · 5+ UNITS

SIMILAR SIZE AND ERA IN 91042

10206 HILLHAVEN AVE→8 UNITS · BUILT 2004 · 11,002 SF10207 N MOUNTAIR AVE→7 UNITS · BUILT 2008 · 11,794 SF10209 HILLHAVEN AVE→10 UNITS · BUILT 2009 · 16,012 SF10214 FERNGLEN AVE→6 UNITS · BUILT 2008 · 9,356 SF10324 MOUNT GLEASON AVE→7 UNITS · BUILT 2020 · 8,568 SF10330 MOUNT GLEASON AVE→7 UNITS · BUILT 2015 · 8,470 SF
EVERY BUILDING IN 91042 →
/// COMMON QUESTIONS · 10201 MOUNTAIR AVE

The short answers.

Is 10201 Mountair Ave rent controlled?

Built 2015 — buildings under 15 years old are exempt from AB 1482; the state cap applies once the building turns 15. 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 10201 Mountair Ave have?

County records list 10 units at 10201 Mountair Ave, classified as 5+ units across 16,017 square feet of building area, averaging about 1,602 square feet per unit. Unit counts on the roll can lag permitted conversions and unpermitted additions in both directions.

When was 10201 Mountair Ave built?

The assessor roll gives a build year of 2015, 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 10201 Mountair Ave last change hands?

The most recent transfer on the roll was recorded August 2009. 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 10201 Mountair Ave assessed at, and is that what it is worth?

The current assessed value is $3,123,154 ($392,974 land, $2,730,180 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 16 years.

Would the owner of 10201 Mountair Ave face a big tax bill on a sale?

Possibly. A base year going back roughly 16 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 10201 Mountair 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.

WHAT'S IT WORTH_TALK TO SHAYA →

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