2134 S Oak Knoll Avenue, San Marino, CA 91108

$4,380,000
4
BD
6
BA
5,935
SqFt

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Sold Price
$4,380,000
List Price
$5,800,000
Closing Date
Feb 19, 2026
Status
CLOSED
MLS#
WS25250287
Year Built
2025
Bedrooms
4
Bathrooms
6
Living Sq. Ft
5,935
Lot Size
30,962
Acres
0.71
Days on Market
96
Property Type
Single Family Residential
Property Sub Type
Single Family Residence
Stories
Two Levels

Property Description

Ready to build!Nestled in the heart of San Marino’s most prestigious and established estate enclave, Oak Knoll Avenue presents a rare and extraordinary opportunity to secure one of the finest legacy residential parcels in the area. Located just moments from the iconic Langham Hotel and a short stroll to the beloved Lacy Park, this nearly 31,000-square-foot flat lot offers unmatched privacy, scale, and development potential in one of Southern California’s most highly regarded neighborhoods. The property is offered primarily for land value, providing an exceptional canvas for the creation of a world-class custom residence. The existing home is planned to be removed, and the sale includes fully developed and submitted architectural plans for an elegant 5,935-square-foot two-story Spanish-inspired luxury estate with a three-car garage. This design concept embraces timeless architectural character, refined indoor-outdoor living, and modern lifestyle functionality—perfectly aligned with the area’s historic charm and luxury standards. With a wide frontage, generous setbacks, mature trees, and expansive grounds, the site affords both privacy and presence, offering the flexibility to create a resort-like environment with pool, gardens, and multiple outdoor entertainment zones. The parcel’s impressive lot size also presents potential for additional improvements, including an ADU or guest casita, subject to city approval—further enhancing the long-term value and versatility of the site. Located within the boundaries of the award-winning San Marino School District and surrounded by many of the city’s most iconic estates, this address is synonymous with enduring prestige, architectural excellence, and generational value. Opportunities to acquire large, build-ready estate parcels in this prime heritage zone are exceedingly limited, particularly those accompanied by pre-planned luxury home designs that honor the neighborhood’s character while meeting modern standards of scale, livability, and privacy. A rare blend of location, scale, architectural vision, and development readiness, this estate-caliber parcel invites its next steward to bring a dream home to life in one of the most distinguished pockets of San Marino.

Additional Information

Other Buildings
Guest House Detached, Guest House
Appliances
Built-In Range, Dishwasher, Disposal, Refrigerator
Pool
Yes
Pool Description
In Ground, Private
Fireplace Description
Dining Room, Family Room, Living Room
Heat
Central
Cooling
Yes
Cooling Description
Central Air
View
Pool
Patio
Brick
Garage Spaces Total
3
Sewer
Public Sewer
Water
Public
School District
San Marino Unified
Interior Features
Separate/Formal Dining Room, All Bedrooms Down, Dressing Area, Main Level Primary, Primary Suite, Walk-In Pantry, Walk-In Closet(s)
Attached Structure
Detached
Number Of Units Total
1

Listing courtesy of Listing Agent: LILI QIAN (qianpeter5@gmail.com) from Listing Office: PACIFIC STERLING REALTY/Irvine.

Listing sold by LILI QIAN from PACIFIC STERLING REALTY/Irvine

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Based on information from California Regional Multiple Listing Service, Inc. as of . This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.