Completed in 2006, this magnificent vineyard estate is the perfect place to escape from the fast daily pace of Silicon Valley. The approximately 41 acres are as peaceful as they are beautiful, with spectacular top-of-the-world San Francisco Bay views. Arriving on the front terrace is as if stepping into the Italian countryside. The scale of the home is destined for grand entertaining spilling out to exceptional front and rear terraces. The kitchen is a culinary retreat with commercial-quality appliances, and the wine cellar awaits a sizable collection. Multiple rooms for everyday living, a theatre, plus a well-being center with spa, steam, and sauna add luxurious touches. Both 5660 Alpine Road and APN 080-040-120 are being offered for sale together.
For sale
$15,500,000
5660 Alpine Rd, Portola Valley, CA 94028
6beds
14,500sqft
Est.:
Single Family Residence, Residential
Built in 2006
41.72 Acres Lot
$-- Zestimate®
$1,069/sqft
$-- HOA
What's special
Wine cellarCommercial-quality appliancesFront terraceCulinary retreat
- 1071 days |
- 1,930 |
- 67 |
Zillow last checked: 7 hours ago
Listing updated: January 15, 2026 at 07:47am
Listed by:
Kavanaugh Group 70010886 650-400-8076,
Coldwell Banker Realty 650-851-1961
Source: MLSListings Inc,MLS#: ML81803721
Tour with a local agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 6
- Bathrooms: 11
- Full bathrooms: 9
- 1/2 bathrooms: 2
Dining room
- Features: DiningArea, FormalDiningRoom
Family room
- Features: SeparateFamilyRoom
Heating
- Central Forced Air
Cooling
- Central Air
Features
- Has fireplace: Yes
- Fireplace features: Living Room, Other Location
Interior area
- Total structure area: 14,500
- Total interior livable area: 14,500 sqft
Video & virtual tour
Property
Parking
- Total spaces: 4
- Parking features: Attached, Detached
- Attached garage spaces: 4
Lot
- Size: 41.72 Acres
Details
- Parcel number: 080040110
- Zoning: OR0000
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence, Residential
Materials
- Foundation: Concrete Perimeter and Slab
- Roof: Tile
Condition
- New construction: No
- Year built: 2006
Utilities & green energy
- Gas: Generator, PropaneOnSite
- Water: Spring
- Utilities for property: Propane
Community & HOA
Location
- Region: Portola Valley
Financial & listing details
- Price per square foot: $1,069/sqft
- Tax assessed value: $21,826,264
- Annual tax amount: $237,537
- Date on market: 8/17/2020
- Listing agreement: ExclusiveRightToSell
Estimated market value
Not available
Estimated sales range
Not available
$5,646/mo
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 10/11/2024 | Price change | $15,500,000-18.4%$1,069/sqft |
Source:  MLSListings Inc #ML81803731 Report a problem | ||
| 7/19/2022 | Price change | $19,000,000-13.6%$1,310/sqft |
Source: MLSListings Inc #ML81803731 Report a problem | ||
| 8/17/2020 | Listed for sale | $22,000,000$1,517/sqft |
Source: Coldwell Banker Realty #ML81803731 Report a problem | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $237,537 +1.1% | $21,826,264 +2% |
| 2024 | $234,922 +1.5% | $21,398,300 +2% |
| 2023 | $231,458 +2.9% | $20,978,726 +2% |
| 2022 | $225,017 +1.3% | $20,567,380 +2% |
| 2021 | $222,046 +0.6% | $20,164,100 +1% |
| 2020 | $220,782 +1.1% | $19,957,344 +2% |
| 2019 | $218,402 +5.3% | $19,566,024 +2% |
| 2018 | $207,495 +1.2% | $19,182,380 +2% |
| 2017 | $205,036 +1.8% | $18,806,256 +2% |
| 2016 | $201,459 +3.2% | $18,437,508 +1.5% |
| 2015 | $195,153 | $18,160,560 +2% |
| 2014 | $195,153 | $17,804,820 +0.5% |
| 2013 | -- | $17,724,356 +2% |
| 2012 | -- | $17,376,820 |
| 2011 | -- | $17,376,820 +2.8% |
| 2010 | -- | $16,908,778 -0.2% |
| 2009 | -- | $16,948,948 +2% |
| 2008 | -- | $16,616,618 +2% |
| 2007 | -- | $16,290,804 +2% |
| 2006 | -- | $15,971,378 |
| 2005 | -- | $15,971,378 +4% |
| 2004 | -- | $15,351,193 +2853.1% |
| 2003 | -- | $519,840 -34.5% |
| 2002 | -- | $793,471 +53.4% |
| 2001 | -- | $517,129 +17.3% |
| 2000 | -- | $440,813 |
Find assessor info on the county website
BuyAbility℠ payment
Est. payment
$91,115/mo
Principal & interest
$76648
Property taxes
$14467
More affordability tools
Climate risks
Neighborhood: 94028
Nearby schools
GreatSchools rating
- 9/10Corte Madera SchoolGrades: 4-8Distance: 1.3 mi
- 8/10Woodside High SchoolGrades: 9-12Distance: 6.6 mi
- 10/10Ormondale Elementary SchoolGrades: K-3Distance: 2.2 mi
Schools provided by the listing agent
- District: PortolaValleyElementary
Source: MLSListings Inc. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
Local experts in 94028
- California
- San Mateo County
- Portola Valley
- 94028
- 5660 Alpine Rd
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