Off Market Oct 2023 for $9.2M

$10,360,023

Est. refi paymentEst. refi $54,504/mo

•

4,050

sq ft

275 Round Hill Rd, Tiburon, CA 94920

About this home

This just completed modern masterpiece nestles on a private landscaped lot on the verdant southern Tiburon hillside, bathed in sun and panoramic views from the Golden Gate Bridge to the Bay Bridge, and the entire city skyline in between. The property has undergone a complete renovation and expansion, featuring spectacular architectural design, the finest finishes, myriad custom features, a seamless indoor/outdoor flow, and a sparkling pool with a pool-side gym and cabana. With Tiburon's charming shops and restaurants, parks and yacht clubs, hiking and biking trails, award-winning schools, and the ultimate commute by ferry to San Francisco nearby, this a 21st century dream home.

Single-familyProperty Type

2023Year Built

0.37 acresLot Size

$2,558Est. Price/Sq.Ft.

2 garage spacesParking

Listed by Bill Smith Ann Aylwin •DRE #01229913 • Compass

•415-902-4456 (agent)

•bill@billsmithrealestate.com (agent)

Bought with Lei Ann Werner •DRE #00994572 • Golden Gate Sotheby's International Realty

Redfin checked: a minute ago

•Source:BAREIS #323018881

Redfin Estimate

$10,360,023

$1.2M since sold in October 2023$166K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 59.7% higher than the average sale price ($6.49M) of 5 comparable homes.

SOLD AUG 27, 2026
$4,600,000
A
4 beds4 baths3,518 sq ft
2 Round Hill Ter, Tiburon, CA 94920
SOLD MAY 28, 2026
$4,000,000
B
4 beds4.5 baths3,590 sq ft
5 Warren Ct, Tiburon, CA 94920
SOLD AUG 26, 2026
$6,207,000
C
4 beds3.5 baths4,820 sq ft
17 Cecilia Ct, Tiburon, CA 94920
SOLD JUN 8, 2026
$10,500,000
D
4 beds4.5 baths4,135 sq ft
335 Golden Gate Ave, Belvedere, CA 94920
SOLD JUN 5, 2026
$7,130,000
E
5 beds3.5 baths3,900 sq ft
86 Sugarloaf Dr, Tiburon, CA 94920

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Earn from this home

Sell

$2,844,122

Est. take-home

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Refinance

Est. cash available

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Rent

$11,606/mo

Redfin rental estimate

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Market trends in 94920, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

101.3%

1.0% MoM

Median sale price

$3.5M

$54K MoM

Avg. days on market

27d

0 days MoM

Recently sold homes

1 MoM

New listings for sale

OPEN TODAY, 11AM TO 2PM
$1,895,000
2 beds1 bath871 sq ft
2336 Mar East St, Tiburon, CA 94920
OPEN SUN, 2PM TO 4PM
$2,550,000
3 beds2 baths1,650 sq ft
22 North Ter, Tiburon, CA 94920
OPEN TODAY, 10:30AM TO 2:30PM
$6,295,000
5 beds5 baths4,401 sq ft
174 Stewart Dr, Tiburon, CA 94920
$4,400,000
4 beds3.5 baths4,390 sq ft
59 Via Los Altos, Tiburon, CA 94920
VIDEO TOUR
$17,500,000
5 beds4.5 baths6,721 sq ft
36 Old Landing Rd, Tiburon, CA 94920
OPEN TODAY, 10:30AM TO 2PM
$2,995,000
4 beds2 baths1,962 sq ft
9 East Ter, Tiburon, CA 94920
(415) 901-1700
OPEN SAT, 1PM TO 3PM
$1,198,000
2 beds2.5 baths1,440 sq ft
106 Marinero Cir, Tiburon, CA 94920
(415) 738-7000
OPEN SUN, 2PM TO 4PM
$6,488,000
4 beds4.5 baths4,815 sq ft
207 Taylor Rd, Tiburon, CA 94920
OPEN SUN, 1PM TO 4PM
$3,577,000
3 beds3 baths2,696 sq ft
2 Lagoon Vista Rd, Tiburon, CA 94920
OPEN SAT, 2PM TO 4PM
$599,000
1 bed1 bath672 sq ft
34 Andrew Dr #131, Tiburon, CA 94920
See all

Provided by Redfin

Sale history for 275 Round Hill Rd

Date

Event

Price

BAREIS #323018881

Oct 31, 2023

Sold

$9,200,000

$2,272/sq ft

Oct 10, 2023

Pending

—

Sep 27, 2023

Contingent

—

Aug 28, 2023

Price Changed

$10,800,000

$2,667/sq ft

Apr 24, 2023

Listed

$12,000,000

$2,963/sq ft

Public Records

Mar 31, 2020

Sold

$3,547,000

$876/sq ft

BAREIS #21904838

Apr 4, 2019

Delisted

—

Mar 15, 2019

Listed

Public Records

Apr 27, 2017

Sold

$3,211,500

$793/sq ft

Public Records

May 1, 1991

Sold

$1,600,000

$395/sq ft

Public Records

Apr 27, 1990

Sold

$1,500,000

$370/sq ft

Public Records

Apr 14, 1989

Sold

$960,000

$237/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$105,515 (+3.8%)

$5,202,000 + $4,348,872

$9,550,872

2024

$101,643 (+89.8%)

$5,100,000 + $4,263,600

$9,363,600

2023

$53,543 (+24.7%)

$5,000,000 + $4,180,000

$9,180,000

2022

$42,954 (+4.3%)

$2,312,574 + $2,415,925

$4,728,499

2021

$41,197 (+4.8%)

$2,267,232 + $1,487,164

$3,754,396

2020

$39,306 (+1.8%)

$2,222,792 + $1,360,954

$3,583,746

2019

$38,607 (+1.7%)

$2,440,760 + $964,748

$3,405,508

2018

$37,969 (+30.0%)

$2,392,920 + $945,839

$3,338,759

2017

$29,198 (+5.3%)

$1,620,874 + $850,909

$2,471,783

2016

$27,717 (−0.4%)

$1,620,874 + $850,909

$2,471,783

2015

$27,826 (+3.3%)

$1,589,093 + $834,226

$2,423,319

2014

$26,935 (+0.1%)

$1,534,576 + $805,606

$2,340,182

2013

$26,906 (+2.2%)

$1,534,576 + $805,606

$2,340,182

2012

$26,326 (−0.8%)

$1,527,650 + $801,971

$2,329,621

2011

$26,536 (+0.8%)

$1,497,706 + $786,250

$2,283,956

2010

$26,335 (+0.6%)

$1,468,345 + $770,837

$2,239,182

2009

$26,179 (+2.8%)

$1,457,373 + $765,076

$2,222,449

2008

$25,471

$1,460,836 + $766,895

$2,227,731

Tax history for 275 Round Hill Rd

Year

Property tax

Land + Additions

Assessment*

2025

$105,515 (+3.8%)

$5,202,000 + $4,348,872

$9,550,872

2024

$101,643 (+89.8%)

$5,100,000 + $4,263,600

$9,363,600

2023

$53,543 (+24.7%)

$5,000,000 + $4,180,000

$9,180,000

2022

$42,954 (+4.3%)

$2,312,574 + $2,415,925

$4,728,499

2021

$41,197 (+4.8%)

$2,267,232 + $1,487,164

$3,754,396

2020

$39,306 (+1.8%)

$2,222,792 + $1,360,954

$3,583,746

2019

$38,607 (+1.7%)

$2,440,760 + $964,748

$3,405,508

2018

$37,969 (+30.0%)

$2,392,920 + $945,839

$3,338,759

2017

$29,198 (+5.3%)

$1,620,874 + $850,909

$2,471,783

2016

$27,717 (−0.4%)

$1,620,874 + $850,909

$2,471,783

2015

$27,826 (+3.3%)

$1,589,093 + $834,226

$2,423,319

2014

$26,935 (+0.1%)

$1,534,576 + $805,606

$2,340,182

2013

$26,906 (+2.2%)

$1,534,576 + $805,606

$2,340,182

2012

$26,326 (−0.8%)

$1,527,650 + $801,971

$2,329,621

2011

$26,536 (+0.8%)

$1,497,706 + $786,250

$2,283,956

2010

$26,335 (+0.6%)

$1,468,345 + $770,837

$2,239,182

2009

$26,179 (+2.8%)

$1,457,373 + $765,076

$2,222,449

2008

$25,471

$1,460,836 + $766,895

$2,227,731

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Zoning
Permits

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

0.37 Acres

Year renovated

1974

Sq. Ft.

2,789

Year built

1968

Style

Single Family Residential

County

Marin County

APN

039-202-02

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 13, 2026.

Jun 24, 2024 • Final

Roof mounted solar

Install a solar energy storage system with multiple powerwall units.

Battery

Electrical

Solar

Aug 2, 2023 • Final

Building residential

Construct an addition and perform remodeling work on the building.

Addition

Remodel

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Parking

Parking & Garage Information
Parking Total: 4
Parking Features: 24'+ Deep Garage, Attached, Garage Door Opener, Interior Access, Side-by-Side
Garage Spaces: 2
Driveway Sidewalks: Paved Driveway

Interior

Bathroom Information
# of Bathrooms (Total): 4
# of Bathrooms (Full): 4
Master Bathroom Features: Double Sinks, Jetted Tub, Low-Flow Toilet(s), Multiple Shower Heads, Soaking Tub

Bedroom Information
# of Bedrooms (Total): 4
Master Bedroom Features: Balcony, Sitting Area, Surround Sound, Walk-In Closet 2+

Heating & Cooling
Cooling: Central
Heating: Central

Interior Features
Appliances: Built-In Gas Oven, Built-In Refrigerator, Dishwasher, Disposal, Double Oven, Microwave
Fireplaces Total: 3
Fireplace Features: Family Room, Living Room
Flooring: Wood
Interior Features: Skylight(s)
Laundry Features: Dryer Included, Inside Room, Upper Floor, Washer Included
Security Features: Fire Alarm, Fire Suppression System, Smoke Detector
# of Stories: 2

Room Information
Room Types: Office
Dining Room Features: Dining/Living Combo
Kitchen Features: Breakfast Area, Butlers Pantry, Island, Island w/Sink, Quartz Counter
Living Room Features: Deck Attached, Great Room
Main Level: Dining Room, Family Room, Full Bath(s), Garage, Kitchen, Living Room, Street Entrance
Upper Level: Bedroom(s), Full Bath(s), Loft

Exterior

Exterior Features
Allows Horses: No
Exterior Features: BBQ Built-In, Fire Pit

Pool Information
Pool Features: Solar Heat
Has Private Pool: Yes
Has Spa: No

Property Information
ADU 2nd Unit: No
Property Condition: Updated/Remodeled
Property Type: Residential
Property Sub Type: Single Family Residence

Lot Information
Lot Size Square Feet: 16,200
Lot Size Acres: 0.3719
Lot Size Source: Assessor Auto-Fill
Lot Features: Auto Sprinkler F&R, Cul-De-Sac, Garden, Landscape Front

Utilities

Utilities Information
Utilities: Cable Available, Cable Connected, Solar
Sewer: Public Sewer
Electric: Photovoltaics Seller Owned

Location

HOA Information
Association YN: No

School Information
School District County: Marin
Elementary School District: Reed Union
Middle Or Junior School District: Reed Union
High School District: Tamalpais Union

Community Information
Senior Community: No

Public facts

Beds: 3
Baths: 5.0
Sq. Ft.: 2,789
Stories: —
Lot Size: 0.37 acres
Style: Single Family Residential
Year Built: 1968
Year Renovated: 1974
County: Marin County
APN: 039-202-02

Home facts updated by county records on Jul 13, 2026

Around this home

Schools

Reed Elementary School

Public K-2 • Assigned • 0.6mi

Del Mar Middle School

Public 6-8 • Assigned • 0.7mi

10/10

Redwood High School

Public 9-12 • Assigned • 4.5mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

2/10 Heat Factor

7 days above 79° expected this year, 16 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

8/10 Air Factor

13 unhealthy days expected this year, 13 days in 30 years

Provided by First Street

Historical weather

Tiburon, CA • 94920

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 10.8 hours in June and 5 hours in December, placing it above the U.S. average for solar exposure.

10.8 hrs

5 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$9.84M – $11.92M

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Home values near 275 Round Hill Rd

Data from public records.

Address	Redfin Estimate
300 Round Hill Road, Tiburon, CA 6 Beds \| 4 Baths \| 4994 Sq. Ft.	$7,627,831
240 Round Hill Road, Tiburon, CA 5 Beds \| 4.5 Baths \| 3189 Sq. Ft.	$4,731,882

Address	Redfin Estimate
233 Round Hill Road, Tiburon, CA 5 Beds \| 5 Baths \| 5097 Sq. Ft.	$11,505,088
239 Round Hill Road, Tiburon, CA 4 Beds \| 4 Baths \| 3174 Sq. Ft.	$4,235,105

Address	Redfin Estimate
285 Round Hill Road, Tiburon, CA 3 Beds \| 4 Baths \| 3240 Sq. Ft.	$4,120,395
260 Round Hill Road, Tiburon, CA 4 Beds \| 3 Baths \| 3510 Sq. Ft.	$4,602,016

Property information provided by BAREIS when last listed in 2023. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94920, CA

Sale history for 275 Round Hill Rd

Tax history for 275 Round Hill Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94920

Home values near 275 Round Hill Rd

More real estate resources