123 Round Hill Road
Tiburon, CA 94920
Map
- 5 beds
- 6 baths
- 4,608 sqft
- ~1 acre lot
- $1,235 per sqft
- 1957 build
- – on site
This recently rebuilt contemporary home (completed in 2016) sits on a secluded acre with sweeping views of Belvedere Lagoon and the San Francisco skyline. Surrounded by majestic oaks, it offers privacy, serenity, and refined design in a tranquil, park-like setting. Inside, wide-plank hardwood floors anchor the dramatic entry and main level. The spacious living room features custom built-ins, a gas fireplace, and surround sound. The chef's kitchen includes a butcher block island, farmhouse sink, dual ovens, walk-in pantry, and flows into the dining area and glass-enclosed, 550-bottle wine cellar. The primary suite is a retreat with abundance of natural light, heated bathroom floors, soaking tub, dual vanities, custom cabinetry, and dual closets. Downstairs are three en-suite bedrooms, a media room, large laundry, and 1,225 sq ft of finished storage. The bottom level can be an office, guest suite, creative space or all 3! It includes a lounge with designer bath, and opens to a 1,000 sq ft patio with above ground hot tub. Expansive wraparound decks offer panoramic Bay and city views. A vegetable garden, rainwater system, wine barrel bar, smart-home tech, and full-home generator complete this Tiburon sanctuary where luxury meets nature.
Last checked:
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Last updated Jun 13, 2025
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MLS# 325053375 —
The Building
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Year Built:1957
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Year Built Source:Assessor Auto-Fill
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Levels:3
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Patio And Porch Features:Front Porch, Uncovered Deck, Uncovered Patio, Wrap Around Porch
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SqFt:4,608 Sqft
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SqFt Source:Architect
Interior
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Interior Features:Cathedral Ceiling, Open Beam Ceiling, Storage Area(s)
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Main Level:Dining Room, Kitchen, Living Room, Primary Bedroom, Partial Bath(s)
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Lower Level:Bedroom(s), Family Room, Full Bath(s)
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Room Type:Bonus Room, Family Room, Kitchen, Laundry, Living Room, Primary Bedroom, Office, Possible Guest, Storage, Wine Cellar
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Living Room:Cathedral/Vaulted, Deck Attached, View
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Kitchen Features:Island, Island w/Sink, Pantry Closet, Stone Counter, Wood Counter
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Dining Room Features:Formal Area
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Family Room:Deck Attached
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Miscellaneous:Balcony
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Laundry Features:Cabinets, Dryer Included, Inside Area, Inside Room, Sink, Washer Included
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Fireplace Features:Living Room
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# of Fireplaces:1
Financial & Terms
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Sale Conditions:Other
Location
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Directions:Tiburon blvd, left on lyford, left on round hill rd. On the left side. Driveway looks scary but its not!
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Cross Street:Lyford
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Area:Tiburon
The Property
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Property Type:Residential
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Property Type:Single Family Residence
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Lot Description:Landscape Front, Low Maintenance
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45359Lot SqFt:
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Lot Size Measurement:Acres
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Lot Size Source:Assessor Auto-Fill
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View:Bay View, City View, City Lights, Hills View, Mountains View, San Francisco, Water View
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1.0413Acres:
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Attach/Detach Home:Custom, Detached, Luxury
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Driveway:Paved Driveway
Listing Agent
- Contact info:
- No listing contact info available
Taxes
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Assessors Parcel Number:058-141-15
Beds
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Total Bedrooms:5
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Master Bedroom Features:Balcony, Outside Access, Walk-In Closet, Walk-In Closet 2+
Baths
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6Total Baths:
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5Full Baths:
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1Half Baths:
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Master Bath Features:Double Sinks, Radiant Heat, Tub, Window
Heating & Cooling
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Heating:Central, MultiZone
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Cooling:Central, MultiZone
Utilities
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Description:Public
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Water Source:Public
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Sewer:Public Sewer
Appliances
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Appliances:Built-In Refrigerator, Dishwasher, Disposal, Double Oven, Hood Over Range, Ice Maker
The Community
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Senior Age Requirement::No
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Spa:Yes
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Pool Description:No
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Spa Features:Spa/Hot Tub Personal
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HOA Fee Amount:$No
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Association:Marin County
Parking
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Garage Spaces:2.00
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Total Parking Spaces:7.00
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Parking Features:Garage Door Opener, Guest Parking Available, Private, Side-by-Side, Uncovered Parking Spaces 2+
Monthly cost estimate
Asking price
$5,695,000
| Expense | Monthly cost |
|---|---|
|
Mortgage
This calculator is intended for planning and education purposes only. It relies on assumptions and information provided by you regarding your goals, expectations and financial situation, and should not be used as your sole source of information. The output of the tool is not a loan offer or solicitation, nor is it financial or legal advice. |
$30,494
|
| Taxes | N/A |
| Insurance | $1,566 |
| Utilities | $273 See report |
| Total | $32,333/mo.* |
| *This is an estimate |
Walk Score®
Provided by WalkScore® Inc.
Walk Score is the most well-known measure of walkability for any address. It is based on the distance to a variety of nearby services and pedestrian friendliness. Walk Scores range from 0 (Car-Dependent) to 100 (Walker’s Paradise).
Bike Score®
Provided by WalkScore® Inc.
Bike Score evaluates a location's bikeability. It is calculated by measuring bike infrastructure, hills, destinations and road connectivity, and the number of bike commuters. Bike Scores range from 0 (Somewhat Bikeable) to 100 (Biker’s Paradise).
Soundscore™
Provided by HowLoud
Soundscore is an overall score that accounts for traffic, airport activity, and local sources. A Soundscore rating is a number between 50 (very loud) and 100 (very quiet).
Air Pollution Index
Provided by ClearlyEnergy
The air pollution index is calculated by county or urban area using the past three years data. The index ranks the county or urban area on a scale of 0 (best) - 100 (worst) across the United Sates.
Sale history
| Date | Event | Source | Price | % Change |
|---|---|---|---|---|
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6/10/25
Jun 10, 2025
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Listed / Active | BAREIS | $5,695,000 |
