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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.
Property Type(s):
Single Family
| Last Updated | 9/16/2026 | Year Built | 1925 |
|---|---|---|---|
| Community | 655 - San Marino | Garage Spaces | 2.0 |
| County | Los Angeles |
SCHOOLS
| High School | San Marino |
|---|
Additional Details
| AIR | Central Air |
|---|---|
| AIR CONDITIONING | Yes |
| APPLIANCES | Dishwasher, Gas Range, Gas Water Heater, Range Hood, Refrigerator |
| AREA | 655 - San Marino |
| BASEMENT | Finished, Yes |
| FIREPLACE | Yes |
| GARAGE | Yes |
| HEAT | Central |
| INTERIOR | Recessed Lighting |
| LOT | 0.2944 acre(s) |
| LOT DESCRIPTION | Front Yard |
| LOT DIMENSIONS | 12826 |
| PARKING | Driveway, Garage, Gated |
| POOL DESCRIPTION | None |
| SEWER | Public Sewer |
| STORIES | 2 |
| UTILITIES | Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected |
| VIEW DESCRIPTION | None |
| WATER | Public |
Location
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Listed with Pinnacle Real Estate Group
The information being provided by Conejo Simi Moorpark Association of REALTORS® (“CSMAR”) is for the visitor's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. Any information relating to a property referenced on this web site comes from the Internet Data Exchange (“IDX”) program of CSMAR. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. Any information relating to a property, regardless of source, including but not limited to square footages and lot sizes, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals. The data contained herein is copyrighted by CSMAR and is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited.
This IDX solution is (c) Diverse Solutions 2026.
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