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Discover the ideal blend of modern luxury and historic grandeur at 620 South Allen Ave. Set in San Marino's exclusive Huntington Library District, this distinguished Spanish Colonial Revival estate--originally designed by renowned architect Everett Phillips Babcock--has been masterfully reimagined through a meticulous, multi-year, ground-up renovation completed in 2025. The home has been extensively improved at the infrastructure level, including a new roof, all-new electrical and plumbing systems, new HVAC, insulation, and re-finished windows. Thoughtfully integrated smart-home enhancements include Nest climate control, two high-speed EV charging stations, and a pre-wired security system with CCTV, offering both comfort and peace of mind. Inside, a curated palette of sumptuous finishes defines the living experience, including engineered white oak flooring, imported Italian porcelain tile, bespoke lighting, and custom Italian cabinetry throughout. Designed for both everyday living and elegant entertaining, the chef's kitchen serves as a true centerpiece--appointed with Italian marble countertops, fully integrated Sub-Zero refrigeration, a Wolf 48-inch cooktop with double ovens, and a generous walk-in pantry. The home offers five en suite bedrooms, including a main-level guest suite and four additional bedrooms upstairs. The primary suite is a private retreat of exceptional scale, featuring a custom-built walk-in wardrobe and a spa-inspired bath finished to the highest standard. Set on approximately three-quarters of an acre, the grounds have been reimagined to evoke a private resort setting. Enhancements include new hardscaping, professionally designed landscaping, and a new front yard, backyard, driveway, courtyard, and garage. Outdoor amenities include a refinished championship tennis court with lights, a rebuilt pool and spa with new app-controlled equipment, and Trex composite decking for seamless indoor-outdoor living. A detached guest house includes a 3/4 bath, providing flexible space for guests, a home office, or recreation. The extra-wide circular driveway, off Allen Ave, is spacious enough to comfortably fit 2 cars side by side while a second driveway, off California Blvd, provides added convenience. A rare offering, this 1925 estate captures the romance of its architectural lineage while delivering the sophistication, comfort, and turnkey ease of a newly constructed home.
Property Type(s):
Single Family
| Last Updated | 3/26/2026 | Year Built | 1925 |
|---|---|---|---|
| Community | 655 - San Marino | Garage Spaces | 2.0 |
| County | Los Angeles |
Additional Details
| AIR | Central Air |
|---|---|
| AIR CONDITIONING | Yes |
| APPLIANCES | Dishwasher, Double Oven, Freezer, Gas Cooktop, Indoor Grill, Microwave, Refrigerator, Water Heater |
| AREA | 655 - San Marino |
| BASEMENT | Unfinished, Yes |
| EXTERIOR | Balcony, Barbecue |
| FIREPLACE | Yes |
| GARAGE | Yes |
| HEAT | Central, Fireplace(s) |
| INTERIOR | Beamed Ceilings, Breakfast Bar, Built-in Features, Eat-in Kitchen, Entrance Foyer, High Ceilings, Pantry, Recessed Lighting, Stone Counters, Storage, Walk-In Closet(s) |
| LOT | 0.7643 acre(s) |
| LOT DIMENSIONS | 33293 |
| PARKING | Circular Driveway, Driveway, Garage, Guest, Gated, On Street |
| POOL | Yes |
| POOL DESCRIPTION | Private, In Ground |
| SEWER | Public Sewer |
| STORIES | 2 |
| STYLE | SeeRemarks, Spanish |
| VIEW | Yes |
| VIEW DESCRIPTION | Mountain(s), Neighborhood, Pool |
| WATER | Public |
Location
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Listed with eXp Realty of California, Inc.
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.
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