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620 S Allen Avenue, San Marino, CA 91108

$6,800,000
  • 620 S Allen Avenue, San Marino, CA 91108 Main Photo

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BEDS5 BATHS1 full 1 partial SQUARE FEET4,790 MLS#P1-26446
STATUSActive PROPERTY TYPEResidential - Single Family

Listing Courtesy of: eXp Realty of California, Inc.
Agency Phone: (888) 584-9427
Associate Name: Evangelyn Lin
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Listing Shown by: Watson Realty - Central California Escrow
Agency Phone: (661) 716-5000


Property Description

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.

620 S Allen Avenue | MLS# P1-26446

This single family home located at 620 S Allen Avenue, San Marino, CA 91108 is currently listed for sale with an asking price of $6,800,000. This property was built in 1925 and has 5 bedrooms and 1 full and 1 partial baths with 4790 sq. ft. Search San Marino real estate on www.cce-escrow.com today.

Property Features

Property Type: Residential - Single Family
Basement: Unfinished
Cooling: Central Air
Garage: 2
Heating: Central, Fireplace(s)
Home Style: Spanish, See Remarks
Lot Size: 0.76 Acres
Roof Type: Spanish Tile
Stories: 2.0
Year Built: 1925

Amenities

Beamed Ceilings
Breakfast Bar
Built-in Features
Balcony
Breakfast Area
Separate/Formal Dining Room
Eat-in Kitchen
High Ceilings
Pantry
Stone Counters
Recessed Lighting
Storage
Sunken Living Room
Dressing Area
Entrance Foyer
Primary Suite
Utility Room
Walk-In Pantry
Walk-In Closet(s)
Balcony
Barbecue

Feature Descriptions

Accessibility: Parking
Appliances: 6 Burner Stove, Double Oven, Dishwasher, Freezer, Gas Cooktop, Indoor Grill, Microwave, Refrigerator, Water Heater
Community Features: Curbs, Sidewalks
Days on Site: 7
Fencing: Masonry
Fireplace: Family Room, Living Room
Flooring: See Remarks, Wood
Laundry: Inside, Laundry Room
Parcel#: 5329006004
Parking: Circular Driveway, Door-Single, Driveway, Garage, Guest, Gated, On Street
Parking Notes: Circular Driveway, Door-Single, Driveway, Garage, Gues
Patio/Porch: Deck, Patio, Porch, Balcony
Pool: In Ground, Private
Security: Prewired
Sewer: Public Sewer
Spa: In Ground, Private
Spa: Yes
Special View Info: Mountain(s), Neighborhood, Pool
Swimming Pool: Yes
Water: Public

Listed By / Shown By

Listed By

Agency Name: eXp Realty of California, Inc.
Agency Phone: (888) 584-9427
Agent Name: Evangelyn Lin

Shown By

Agency Title: Watson Realty - Central California Escrow
Agency Phone: (661) 716-5000

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Estimate Your Payment

Estimated Payment

$ 17,117.19 per month $15,133.85 Principal & Interest $0.00 Property Tax (data not provided by mls) $1,983.33 Homeowner's Insurance

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Disclaimer: All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information on this site was last updated 04/03/2026. The listing information on this page last changed on 04/03/2026. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of Delta Media Group MLS (last updated Fri 04/03/2026 1:20:46 PM EST) or CRMLS (last updated Fri 04/03/2026 1:12:52 PM EST) or GEMLS (last updated Fri 04/03/2026 1:13:14 PM EST) or Tehachapi MLS (last updated Fri 04/03/2026 1:00:37 PM EST). Real estate listings held by brokerage firms other than Watson Realty may be marked with the Internet Data Exchange logo and detailed information about those properties will include the name of the listing broker(s) when required by the MLS. All rights reserved.
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