280 Round Hill Road, Tiburon, CA 94920 (MLS # ML82065094)

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PRICE $15,250,000 dsIDX morgage calculator
BEDS 9
BATHS 6.5
HOME SIZE 7,489 sqft
LOT SIZE 1.02 ac
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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.

DAYS ON MARKET 8 LAST UPDATED 10/19/2026
YEAR BUILT 1968 COMMUNITY 699 - Not Defined
GARAGE SPACES 6.0 COUNTY Marin
STATUS Active PROPERTY TYPE(S) Single Family


ADDITIONAL DETAILS
AIR Central Air
AIR CONDITIONING Yes
AREA 699 - Not Defined
FIREPLACE Yes
GARAGE Yes
HEAT Central
LOT 1.0193 acre(s)
LOT DIMENSIONS 44400
PARKING Carport
SEWER Public Sewer
STORIES 2
WATER Public
MORTGAGE CALCULATOR
   

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Listed with Centermac Realty, Inc.

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Based on information from California Regional Multiple Listing Service, Inc. as of 10/25/26 3:52 AM PDT 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 broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information

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