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15878 Bella SienaRancho Santa Fe, CA 92067

For Sale

$12,900,000

Smart Buyer Rebate $129,000

Timeless Resort Estate | Premier Rancho Santa Fe Location Originally built in 2006 by renowned Sylvester Homes, this single-level Tuscan-inspired estate spans nearly 13,000 sq ft on 2 flat, ultra-private acres at the end of a quiet cul-de-sac. Recently refreshed with custom interior upgrades and modern designer lighting, the home blends timeless craftsmanship with a clean, updated aesthetic—making it one of the premier entertainer’s properties on the Rancho Santa Fe market. The flexible floor plan offers 4 bedrooms in the main residence plus a detached guest villa with separate living room and bedroom. Grand-scale interiors include a stunning great room with 23-foot ceilings, exposed wood trusses, and wrought iron chandeliers, opening seamlessly to the outdoor loggia for true indoor-outdoor living. Designed for entertaining, the estate features a movie theater, walnut-paneled library, billiard room with bar and wine cellar, formal dining room with dome ceiling and butler’s pantry, exercise room, and 6-car garage. The private backyard offers a resort-style setting with expansive entertaining areas, fireplace, built-in cabinetry, bar with Sub-Zero refrigeration, and pool bath—enjoyed from nearly every room. Exceptional details throughout include hand-carved mahogany entry doors, stone finishes, custom cabinetry, stain-grade windows and doors, cedar-lined closets, and extensive wood beam work. Quiet, private, and fully usable, this is a rare opportunity to own a legacy estate in one of Rancho Santa Fe’s most desirable locations.

Listed by Sean Barry

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License #01186034

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Luxury Coast Grp Barry Estates

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858-945-4314

Listed by Susie Mikolajewski

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License #01130001

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Luxury Coast Grp Barry Estates

Last updated June 15, 2026

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Source: CRMLS #NDP2603783

Listing Facts

  • TypeSingle-family
  • NeighborhoodFairbanks Ranch
  • Bedrooms5
  • Bathrooms8
  • Days on Prevu43
  • Size12,959 sqft
  • Price per sqft$995

Amenities

  • Air Conditioning
  • Parking
  • Swimming Pool

Location

Mortgage Calculator

Listing History

05/12/2026
Status changed to Active
$12,900,000
05/04/2026
Status changed to Active
$12,900,000
05/04/2026
Status changed to Removed from Feed
$12,900,000
05/04/2026
Listed by Luxury Coast Grp Barry Estates
$12,900,000

Property Details for 15878 Bella Siena

Association

Amenities

  • Community Features: Curbs, Gutter(s), Storm Drain(s), Suburban

General

  • Number Of Units In Community: 9

Exterior

Construction

  • Stories: 1
  • Stories Total: 1
  • Year Built: 2006
  • Common Walls: No Common Walls
  • Entry Level: 1
  • Entry Location: Front

Features

  • Pool Features: In Ground, Private, Salt Water
  • Pool Private: Yes
  • View: Trees/Woods

Measurements

  • Lot Features: Front Yard, Lawn, Landscaped, Yard
  • Lot Size Acres: 2.01
  • Lot Size Area: 2
  • Lot Size Source: Assessor
  • Lot Size Square Feet: 87,555
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: 2690713400

Interior

Features

  • Fireplace Features: Guest Accommodations, Living Room, Primary Bedroom, Outside
  • Fireplace: Yes
  • Interior Features: All Bedrooms Down, Main Level Primary, Primary Suite, Wine Cellar, Walk-In Closet(s)

Measurements

  • Living Area: 12,959
  • Living Area Source: Assessor
  • Living Area Units: Square Feet

Rooms

  • Bathrooms Full: 8
  • Bathrooms Total Integer: 8
  • Bedrooms Total: 5

Parking

Parking

  • Attached Garage: Yes
  • Garage Spaces: 6
  • Garage: Yes
  • Parking Total: 6

Schools

High School

  • High School District: San Dieguito Union

Utilities

Equipment

  • Cooling: Central Air
  • Has Cooling: Yes
  • Laundry Features: Inside, Laundry Room

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 5 bedrooms and 8 bathrooms in this single-family home at 15878 Bella Siena.

Does this single-family home have parking?

Yes, there are 6 parking spaces available for 15878 Bella Siena.

How does 15878 Bella Siena compare to other single-family homes in Fairbanks Ranch?

This single-family home is listed 48% above the average price for single-family homes in Fairbanks Ranch and has been on the market for 60 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 12,959 sqft.

15878 Bella Siena is a 5-bedroom, 8-bath single-family home for sale in Rancho Santa Fe CA 92067. Available on Prevu for 43 days at $12,900,000. This home features 12,959 square feet of living space, located in Fairbanks Ranch. The median listing price for single-family homes in this area is $6,972,500. The home offers air conditioning, parking, and swimming pool. View other single-family home listings in San Diego County.

Based on information from California Regional Multiple Listing Service, Inc. and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.