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818 Irwin
SLD
$15,280,000
List Price
5
Bedrooms
—
Bathrooms
7,950
Sq Ft
Rare, once-in-a-lifetime luxury estate in the prestigious Ryan Tract of Lower Hillsborough. Set on a flat 42,304 sq ft gated lot, this property offers 5 beds, 6.5 baths, solar, regulation tennis court, large pool + separate spa, lush gardens, expansive lawns, multiple patios, putting green, outdoor BBQ, long private driveway, motor court, and 3-car garage. The main residence features an elevator; all bedrooms en-suite; chefs kitchen with butlers pantry; family room; living room; formal dining room; multiple office/workshop spaces; and more. Additional structures include a pool house and a full guest house attached to the garage. Total advertised living space of 7,950 sq ft includes the main house, 945 sq ft 2-bed/2-bath guest house with full kitchen and living/dining area, and a 685 sq ft pool house with living space, kitchenette, laundry, full bath, and sauna. Walking distance to Downtown Burlingame and access to top-rated California schools. A true blend of elegance, scale, and resort-style living.
| LIST_PRICE | 15280000 |
|---|---|
| DCID | 37409731C7A3BAF1E0631501030A10C1 |
| BEDROOMS_TOTAL | 5 |
| MLS_STATUS | SLD |
| LONGITUDE | -122.364723 |
| STREET_NUMBER | 818 |
| COUNTY_OR_PARISH | San Mateo |
| LISTING_ID | ML82010473 |
| SQFT | 7950 |
| DISPLAY_PRICE | 12000000 |
| REPORT_DISPLAY_PRICE | 12000000 |
| SOURCE_MLS | MLSLISTINGS |
| STATE_OR_PROVINCE | CA |
| PARCEL_NUMBER | 028-083-010 |
| CITY_STATE_ZIP | Hillsborough, CA 94010 |
| DAYS_ON_MARKET | 0 |
| POSTAL_CODE | 94010 |
| STREET_DIR_PREFIX | — |
| YEAR_BUILT | 1927 |
| STREET_NAME | Irwin |
| SRCHPRICE | 12000000 |
| PROPERTY_TYPE | RE |
| HOA_DISPLAY | — |
| PHOTO_VIRTUAL_TOUR | — |
| LOT_SQFT | 42304 |
| GAR_DISPLAY | / |
| BATHS_DISPLAY | — |
| ACRES | 0.9712 |
| ALLLIST.DCID | 37409731C7A4BAF1E0631501030A10C1 |
| CLOSE_DATE | 1765785600000 |
| RAW_STATUS | SLD |
| CITY | HILLSBOROU |
| STREET_ADDRESS | 818 Irwin |
| LATITUDE | 37.576238 |
| BUILDING_TYPE | Detached |
| ALLLIST | {'DCID': '37409731C7A4BAF1E0631501030A10C1'} |
Details fetched: September 27 2026 01:40AM
First seen: 2026-09-27 01:10 UTC
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Last updated: 2026-10-25 22:48 UTC
Change History (0)
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