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15878 Bella SienaRancho Santa Fe, CA 92067

Single Family · 5 Beds · 8 Full Baths · 12,959 Sq. ft. | 2.01 Acres
$12,900,000 Active

15878 Bella Siena Overview

Time on Site:
70 days
Visits:
0

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.

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15878 Bella Siena Facts & Features

  • Type Single Family
  • Sq. ft. 12,959
  • Price/Sq.ft. $995
  • Lot 2.01 Acres

Details

General

Association/HOA

  • Association: No

School Information

  • School District: San Dieguito Union

Building Information

  • New Construction: No
  • Year Built: 2006

Location/Region

  • County Or Parish: San Diego
  • MLS Area Major: 92067 - Rancho Santa Fe
  • Postal City: RANCHO SANTA FE

Community/Development

  • Community Features: Curbs,Gutter(s),Storm Drain(s),Suburban
  • Number Of Units In Community: 9

Rent/Lease Information

  • Land Lease: No
  • Lease Considered: No

General Information

  • Listing Terms: Cash,Conventional,Contract
  • Parcel Number: 2690713400
  • Property Sub Type: Single Family Residence
  • Property Type: Residential
  • Senior Community: No
  • Special Listing Conditions: Standard
  • Zoning: R-1

Interior

Parking Information

  • Garage Spaces: 6.0
  • Garage: Yes

Beds/Baths

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

General Information

  • Common Walls: No Common Walls
  • Entry Level: 1
  • Entry Location: Front
  • Fireplace Features: Guest Accommodations,Living Room,Primary Bedroom,Outside
  • Fireplace: Yes
  • Heating: No
  • Interior Features: All Bedrooms Down,Main Level Primary,Primary Suite,Wine Cellar,Walk-In Closet(s)
  • Laundry Features: Inside,Laundry Room
  • Levels: One
  • Living Area: 12959.0
  • Living Area Source: Assessor
  • Living Area Units: Square Feet
  • Spa: No
  • Stories: 1
  • Stories Total: 1

Exterior

Parking Information

  • Parking Total: 6.0

Lot Information

  • Lot Features: Front Yard,Lawn,Landscaped,Yard
  • Lot Size Acres: 2.01
  • Lot Size Area: 2.01
  • Lot Size Source: Assessor
  • Lot Size Square Feet: 87555.6
  • Lot Size Units: Acres

Waterfront/View

    Building Exterior/Construction

    • Attached Garage: Yes
    • Property Attached: No

    General Information

    • Pool Features: In Ground,Private,Salt Water
    • Pool Private: Yes

    15878 Bella Siena Neighborhood

    Community

    92067 (Rancho Santa Fe) Demographics

    45
    Median Age
    397
    Population Density (per sq. mile)
    75%
    College Educated
    $212,188
    Estimated Median Income
    2,530
    Estimated Total Home Owners
    337
    Estimated Total Renters
    88% / 12%
    Estimated Owner / Renter Divide
    3
    Estimated Average Household Size
    Community data courtesy of LiveBy, Inc.

    Schools

    School data courtesy of LiveBy, Inc. School ratings are based on a scale of 1-5, with 5 being the highest rating and 1 being the lowest rating.

    15878 Bella Siena Monthly Cost

    $
    $ %
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    $
    $
    * All calculations are estimates and provided by Reliance Network, for informational purposes only. Actual amounts may vary. ** Assumes 6.50% APR, 20% down payment, and conventional 30-year fixed rate first mortgage. Rates cited are for instructional purposes only; current rates are subject to change at any time without notice. You should not make any decisions based simply on the information provided. Additional required amounts such as taxes, insurance, homeowner association dues, assessments, mortgage insurance premiums, flood insurance or other such required payments should also be considered. Contact your mortgage company for current rates and additional information. Any mortgage broker or insurance agent that may appear is independent and is not affiliated with, endorsed by, or provided by the MLS.

    15878 Bella Siena Market Data

    Based on the last 30 days in this zip code

    $8,291,785
    Average List Price
    $1,122
    Average Price per Square Foot
    12
    Properties Sold
    95
    Average Days on Market
    121
    Properties for Sale
    Calculations provided by Reliance Network

    15878 Bella Siena History

    Date Event Value Agent
    5/4/2026Source: CRMLS Status Change
    Active
    4/20/2026Source: CRMLS Added to Database
    April 20, 2026
    Listing provided courtesy of Luxury Coast Grp Barry EstatesSean Barry- MLS# NDP2603783MLS ProviderContact Information: [email protected] - 858-755-5000