555 Sierra Madre Boulevard
San Marino, CA 91108
Listing broker / agent: Pinnacle Real Estate Group · CHEN DONG · 909-500-8877 · CRMLS
MLS # WS26202630 · Last checked Oct 19, 2026 15:08 UTC
About this property
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 details
- MLS number
- WS26202630
- Status
- Active
- Type
- Residential
- Subtype
- Single Family Residence
- Beds / baths
- 6 Beds • 6 Baths
- Living area
- 4,307 Sq Ft
- Lot size
- 0.2944 acres
- County
- Los Angeles
- Year built
- 1925
- Stories
- 2
More property detailsCollapse
Listing
- Days on market
- 31
Building
- Year built
- 1925
- Year built source
- Assessor
- Stories
- 2
- Building stories
- 2
- Levels
- Two
- Entry level
- 1
- Roof
- Shingle
- Foundation
- Slab
- Living area source
- Measured
Bathrooms
- Full bathrooms
- 6
Rooms & interior
- Main-level bedrooms
- 5
- Main-level bathrooms
- 5
- Rooms
- Attic, Bedroom, Basement, Family Room, Kitchen, Laundry, Loft, Living Room, Primary Bedroom, Office, Retreat, Dining Room
- Appliances
- Dishwasher, Gas Range, Gas Water Heater, Refrigerator, Range Hood
- Interior features
- Breakfast Area, Separate Formal Dining Room, Pull Down Attic Stairs, Recessed Lighting, Attic, Bedroom On Main Level, Loft, Primary Suite
- Flooring
- Laminate, Wood
- Heating
- Central
- Cooling
- Central Air
- Fireplace
- Living Room
- Laundry
- Washer Hookup, Gas Dryer Hookup, Laundry Room
- Accessibility features
- None
Exterior & parking
- Total parking spaces
- 2
- Garage spaces
- 2
- Parking
- Driveway, Garage, Gated
- Attached garage
- No
- Pool
- None
- Spa
- None
- Patio / porch
- Covered, Patio
- Lot features
- Zero To One Unit Acre, Front Yard, Sprinkler System
- Lot size source
- Assessor
- Property outlook
- None
Utilities & community
- Water
- Public
- Sewer
- Public Sewer
- Utilities
- Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
- Community features
- Street Lights, Sidewalks
Fees & lease terms
- Association
- No
- Association fee
- $0.00
Schools reported in the listing
- High school
- San Marino
- High school district
- San Marino Unified
School information is supplied with the listing. Confirm current attendance boundaries and enrollment eligibility directly with the school district.
Nearby public schools
Nearby does not mean assigned. These are approximate straight-line distances from the property, not walking or driving routes. Confirm attendance boundaries, enrollment eligibility, grades and current school status directly with the district.
| School / district | Grades | Distance |
|---|---|---|
| Hamilton Elementary (school website, opens in a new tab) Pasadena Unified · Pasadena | Not reported | 0.4 mi |
| San Marino High (school website, opens in a new tab) San Marino Unified · San Marino | 9–12 | 0.8 mi |
| Learning Works (school website, opens in a new tab) Pasadena Unified · Pasadena | 6–12 | 0.9 mi |
| Carver Elementary (school website, opens in a new tab) San Marino Unified · San Marino | K–5 | 1.0 mi |
| Options For Youth - Duarte, Inc (school website, opens in a new tab) Duarte Unified · Pasadena | 7–12 | 1.2 mi |
| Willard Elementary (school website, opens in a new tab) Pasadena Unified · Pasadena | Not reported | 1.2 mi |
| Aveson Global Leadership Academy (school website, opens in a new tab) Pasadena Unified · Pasadena | 6–12 | 1.3 mi |
| Rose City High (Continuation) (school website, opens in a new tab) Pasadena Unified · Pasadena | 9–12 | 1.3 mi |
Source: California Department of Education · 2025-26 school locations. Downloaded Oct 2, 2026 UTC. This annual snapshot may not reflect later changes. Public schools only; not a complete list of education options. No ratings or attendance assignments are provided.
Check the California School Directory ↗Price and tax history
Asking price
- Current asking price
- $3,999,000
- MLS-reported original asking price
- $3,999,000
| Observed (UTC) | Asking price |
|---|---|
| Oct 2, 2026 05:56 | $3,999,000 |
MLS values are reported for this listing, not prior sales. Observation dates show when our importer saw an asking price, not when the MLS changed it. Up to 24 observations are retained; changes between refreshes may be missed. This is not a complete price or sales history.
Property taxes
Tax history is not available from the imported listing data.
Source: MLS feed. Only supplied tax years are shown, up to 10 years; this is not a county tax archive. Amounts may be corrected and taxes may change after purchase. Verify assessments and current taxes with the county. These values do not automatically fill the payment calculator.
Market trends in San Marino
Active residential homes for sale in San Marino, CA, available through this website's authorized feed. Includes residential subtypes; excludes rentals. Not the entire market or a valuation of this property.
Observed price activity · past 30 days
3 currently active listings have an observed price-change pair ending in this period. A listing can appear in both counts.
Calculated 2026-10-19 16:39 UTC. Source: this website's authorized MLS inventory. Import progress, freshness rules and coverage affect the figures. Medians exclude missing/invalid values; price per sq ft is the median of individual listing ratios. Price observations are limited to the last 24 per listing and may miss changes between refreshes. This is not a complete 30-day market report, historical inventory trend, appreciation measure, or sold-price analysis.
Payment calculator
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Illustration only—not a rate quote, preapproval, lending offer or affordability determination. Assumes equal monthly payments on a fully amortizing fixed-rate loan; no adjustable rates, interest-only periods or balloon payments. Excludes closing costs, utilities, maintenance, special assessments and other unentered costs. Actual payments and escrow can differ. Review a Loan Estimate with your lender.
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