555 Sierra Madre Boulevard, San Marino

$3,999,000

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6

Beds

6

Baths

4,307

Square feet

0.29

Acres

About 555 Sierra Madre Boulevard

Exceptional space, flexibility, and value in one of San Marino’s most desirable north-side neighborhoods. Offering approximately 4,300 sq. ft. of total living space, this extensively remodeled property includes a 3,500 sq. ft. main residence with 4 bedrooms and 4 bathrooms, plus a brand-new 800 sq. ft. detached ADU with 2 bedrooms, 2 bathrooms, a full kitchen, and living room—ideal for extended family, guests, a home office, or independent living. Set on an approximately 12,826 sq. ft. lot, the main home blends classic San Marino character with thoughtful updates. The formal dining room opens to an updated gourmet kitchen with granite countertops, newer Frigidaire appliances, and a bright breakfast room. Three spacious bedroom suites are located on the main level, while the second floor features a private master bedroom suite with retreat/loft. Multiple living areas provide excellent space for entertaining, relaxing, and everyday living. The newly completed ADU is a standout feature, functioning as a truly independent residence and adding exceptional versatility to the property. Outside, redesigned landscaping surrounds the home with mature greenery and flowering plants, while one expansive rear patio are perfect for outdoor dining, barbecues, and entertaining. A fully paid solar system adds energy efficiency and long-term savings. Ideally located in north San Marino near The Huntington Library, Art Museum, and Botanical Gardens, the home is also convenient to local schools, parks, shopping, dining, and other community amenities. With 6 bedrooms, 6 bathrooms, approximately 4,300 sq. ft. of total living space, a new ADU, extensive upgrades, and paid solar, 555 Sierra Madre Blvd offers a rare combination of space, flexibility, and value in San Marino.

Features of 555 Sierra Madre Boulevard

MLS® # WS26202630
Price $3,999,000
Bedrooms 6
Bathrooms 6.00
Full Baths 6
Square Footage 4,307
Acres 0.29
Year Built 1925
Type Residential
Sub-Type Single Family Residence
Status Active

Community Information

Address 555 Sierra Madre Boulevard
Area 655 - San Marino
City San Marino
County Los Angeles
Zip Code 91108

Amenities

Utilities Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
Parking Spaces 2
Parking Driveway, Garage, Gated
# of Garages 2
Garages Driveway, Garage, Gated
View None
Is Waterfront No
Has Pool No
Pool None

Interior

Interior Laminate, Wood
Interior Features Breakfast Area, Separate/Formal Dining Room, Pull Down Attic Stairs, Recessed Lighting, Attic, Bedroom on Main Level, Loft, Primary Suite
Appliances Dishwasher, Gas Range, Gas Water Heater, Refrigerator, Range Hood
Heating Central
Cooling Central Air
Has Basement Yes
Basement Finished
Fireplace Yes
Fireplaces Living Room
# of Stories 2
Stories Two

Exterior

Lot Description ZeroToOneUnitAcre, Front Yard, Sprinkler System
Roof Shingle
Foundation Slab

School Information

District San Marino Unified
High San Marino

Additional Information

Date Listed September 15th, 2026
Days on Market 6
Foreclosure No
Short Sale No
RE / Bank Owned No

Listing Details

AgentChen Dong
OfficePinnacle Real Estate Group

Listing Map

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