280 Round Hill Road
Tiburon, CA 94920
$15,250,000
Listing Broker: Centermac Realty, Inc.
Listing Agent: Lily Garipova
License #: 02010731
415-910-3958
A trophy resort-style estate of three separate fully remodeled three structures, sitting on two parcels of approximately 1.69 level, usable acres on Round Hill in the Bel Aire neighborhood of Belvedere Tiburon: a 7,489 sqft main residence, a detached two-story guest house, and a pool house. The main residence places the entire main living level on one continuous floor, with San Francisco skyline, Golden Gate Bridge, and Bay Bridge views from the main living spaces and additional bedrooms below. Across the compound, ten rooms of flexible accommodation as suites, staff quarters, gym, office, or media room, nine bedrooms and six full baths and a half bath in the main house, plus more than 8,000 sqft of total living space, suited to multi-generational living within a single-family estate. Guest house, approximately 1,200 sqft, remodeled in 2023 with new HVAC and its own unobstructed San Francisco skyline and Golden Gate Bridge views. Tennis court, pool, spa, and pool house on level lawns: a built-in staycation. Six-car garage plus four-car carport for ten covered spaces, with generous guest parking. The second parcel provides lasting privacy and view protection. Minutes to downtown Tiburon and the Tiburon ferry, within the Reed Union School District.
| Listing Id: | ML82065094 |
|---|---|
| Property Type: | Residential |
| Status: | Active |
| Bathrooms Full: | 6 |
| Bathrooms Half: | 1 |
| Living Area: | 7,489 |
| Lot Size Acres: | 1.0193 |
| Waterfront?: | No |
| Year Built: | 1968 |
| Basement Yn: | No |
| Bathrooms Total Integer: | 7 |
| Common Walls: | NoCommonWalls |
| Cooling: | CentralAir |
| Fireplace Features: | FamilyRoom |
| Fireplace?: | Yes |
| Garage?: | Yes |
| Heating: | Central |
| Listing Contract Date: | 2026-10-17 |
| Lot Size Area: | 44400.0 |
| Lot Size Source: | Other |
| Parking Features: | Carport |
| State Or Province: | CA |
| Water Source: | Public |
| Zoning: | R-1-B-A |
| Property Sub Type Additional: | SingleFamilyResidence |
| Country Subdivision: | 06041 |
| Universal Parcel Id: | urn:reso:upi:2.0:US:06041:03917120 |
| List Price: | $15,250,000 |
|---|---|
| Property Sub Type: | SingleFamilyResidence |
| Bedrooms Total: | 9 |
| Lot Size Square Feet: | 44,400.0 |
| City: | Tiburon |
| County Or Parish: | Marin |
| Postal Code: | 94920 |
| Carport?: | Yes |
| Cooling?: | Yes |
| Directions: | Cross Street: MtTiburon |
| Foundation Details: | ConcretePerimeter |
| Garage Spaces: | 6.0 |
| Heating?: | Yes |
| High School District: | Other |
| Listing Agreement: | ExclusiveRightToSell |
| Living Area Source: | Other |
| Lot Size Acres: | 1.0193 |
| Lot Size Units: | SquareFeet |
| MLS Area Major: | 699 - Not Defined |
| Original List Price: | $15,250,000 |
| Parcel Number: | 03917120 |
| Parking Total: | 6 |
| Postal City: | BELVEDERE TIBURON |
| Roof: | Composition |
| Sewer: | PublicSewer |
| Spa?: | Yes |
| Special Listing Conditions: | Standard |
| Stories Total: | 2 |
| Year Built Source: | Other |
| Current Price: | $15,250,000.00 |
| Record Signature: | -1,695,485,494 |
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Based on information from California Regional Multiple Listing Service, Inc. as of October 20, 2026. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.
California Regional Multiple Listing Service, Inc. data last updated on October 20, 2026 01:35 AM - PT
Property Last Updated: October 20, 2026 01:35 AM - PT








