For sale

$19,998,888

Est. $129,601/mo —

•

15,649

sq ft

18911 Decatur Rd, Los Gatos, CA 95030

About this home

Located in the heart of Silicon Valley, this extraordinary Monte Sereno estate represents a rare fusion of grand scale, refined elegance, & unparalleled convenience. Recently transformed through a $10M+ comprehensive renovation, the residence evokes the timeless grandeur of a stately European estate. Set on 1.37 pristine, flat acres, it offers approximately 17,000 square feet of impeccably curated living & storage space beneath a brand-new $1M Tesla solar roof. The main residence features ten bedrooms & eight bathrooms, complemented by a private guest house & separate apartment. Resort-caliber amenities abound, including a ten-car garage, underground shooting range, indoor basketball & racquetball court, USTA-regulation tennis court, resort-style lap pool & spa, expansive great room, home theater, private elevator, two formal libraries, and a gym/nursery. Taken down to the studs, every detail has been reimagined w/ uncompromising quality new Jeld-Wen windows & doors, all-new appliances, plumbing, & electrical systems. Secluded within a private enclave & surrounded by other prestigious estates, the property offers sweeping mountain & city light views. This is a truly iconic Silicon Valley offering! This estate is also available to lease for $45,000 a month on a year to year basis.

Single-familyProperty Type

1994Year Built

1.38 acresLot Size

$1,278Price/Sq.Ft.

10 car garageParking

Listed by Joe Piazza •DRE #01411341 • Coldwell Banker Realty

Contact: 408-410-5020

Listing updated: Aug 25, 2026 at 10:45pm

Redfin checked: 2 minutes ago

•Source:MLSListings #ML82056922

Payment calculator

$129,601 per month

Principal and interest$105,103

Property taxes

$20,832

HOA dues

Home insurance

$3,666

Utilities

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Open houses

No upcoming open houses.

Nearby open houses (10)

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1853 Almaden Rd #202, San Jose, CA 95125
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1853 Almaden Rd #406, San Jose, CA 95125
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$739,800
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1853 Almaden Rd #303, San Jose, CA 95125
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$1,170,000
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$1,200,000
4 beds2.5 baths1,613 sq ft
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Around this home

Schools

K - 12
Preschool & daycare

Saratoga Elementary School

Public K-5 • Assigned • 2.4mi

9/10

Redwood Middle School

Public 6-8 • Assigned • 2.2mi

9/10

Saratoga High School

Public 9-12 • Assigned • 2.7mi

10/10

Provided by GreatSchools

About

Hillside

Hillside, located between Highway 17 and the Los Gatos Creek corridor, is a residential and hillside Monte Sereno neighborhood with winding lanes and a canopy of mature oaks. The character concentrates around the Los Gatos Boulevard and Lark Avenue junction, where small storefronts, coffee counters, and everyday errands set a low-key rhythm. Architecture leans toward custom ranch homes and contemporary rebuilds tucked behind hedges and long driveways. Views open toward the Santa Cruz Mountains, with pockets of quiet cul-de-sacs stepping up the slopes. The nearby Los Gatos Creek Trail frames a walk-and-ride routine through shade and open sky. Community touchstones include the Mountain Winery’s concert lawn, the Los Gatos Theatre marquee, and the Los Gatos Farmers’ Market.

Provided by Walk Score and Local Logic

Market insights

18911 Decatur Rd · $19,998,888

DAYS ON MARKET

The average home goes pending in 19 days.

SALE-TO-LIST

Most homes are selling 2% above list price.

LIST PRICE

Median list price in this area is $1,799,950. (91% lower than this home)

PRICE DROP

16% of homes in this area have had a price drop in the past month.

Property details

Interior
Exterior
Finance

Kitchen

Bathroom

Bedroom

Living

Interior features
High ceilings and vaulted ceilings
Bay window and garden windows
Wet bar
Security gate
Walk-in closets
Finished basement
Wine cellar/storage
Workshop
Storage and utility rooms
Formal entry

Bedrooms
Ten bedrooms total
Ground-floor bedroom(s)
Multiple primary suites, including primary suites on the ground floor
Primary suite(s) with walk-in closet

Bathrooms
Seven full bathrooms and one half bathroom
Primary bath(s) with stall shower(s) and sunken tub
Marble finishes
Double sinks, bidet, tubs with jets, and multiple tubs
Multiple showers over tubs
Full and half baths available on the ground floor

Kitchen
Granite countertops
Built-in gas oven/range
Island
Pantry
Refrigerator(s) and freezer
Microwave
Ice maker
Warming drawer
Wine refrigerator
Breakfast bar and eat-in kitchen with breakfast nook

Laundry & utility
Washer and dryer included
Laundry hookups for gas dryer
Laundry located in utility room and upper floor

Flooring
Hardwood
Marble
Tile
Carpet

Heating & cooling
Central forced air cooling
Central forced air heating (gas)
Forced air with 2+ heating zones
Thermostat controller

Sale and tax history for 18911 Decatur Rd

Sale History
Tax History

Date

Event

Price

APPFOLIO #1

Aug 10, 2026

Rental Removed

$55,000

$4/sq ft

Aug 8, 2026

Listed for Rent

$55,000

$4/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #ML82056922

Aug 7, 2026

Listed

$19,998,888

$1,278/sq ft

Aug 6, 2026

Listed

$19,998,888

$1,278/sq ft

+94

bridgeMLS, Bay East AOR, or Contra Costa AOR #ML82033253

Jun 22, 2026

Listing Removed

—

Apr 30, 2026

Price Changed

Jan 31, 2026

Listed

bridgeMLS, Bay East AOR, or Contra Costa AOR #ML81930306

Jan 30, 2026

Listing Removed

—

bridgeMLS, Bay East AOR, or Contra Costa AOR #ML80418566

Jan 30, 2026

Listing Removed

—

bridgeMLS, Bay East AOR, or Contra Costa AOR #ML80391597

Jan 30, 2026

Listing Removed

—

MLSListings #ML81881657

May 2, 2022

Sold

$9,350,000

$597/sq ft

May 2, 2022

Sold

$9,350,000

$597/sq ft

Apr 25, 2022

Pending

—

Mar 29, 2022

Contingent

—

Mar 24, 2022

Listed

$8,888,888

$568/sq ft

Mar 24, 2022

Listed

$8,888,888

$568/sq ft

MLSListings #ML81120609

Oct 13, 2011

Sold

$4,700,000

$300/sq ft

Oct 13, 2011

Sold

$4,700,000

$300/sq ft

Oct 1, 2011

Pending

—

Jul 6, 2011

Pending

—

May 10, 2011

Listed

$5,800,000

$371/sq ft

May 10, 2011

Listed

$5,800,000

$371/sq ft

Public Records

Dec 17, 1999

Sold

$8,500,000

$543/sq ft

bridgeMLS, Bay East AOR, or Contra Costa AOR #ML89919616

Dec 17, 1999

Sold

$8,700,000

$556/sq ft

Dec 17, 1999

Listing Removed

—

Nov 24, 1999

Sold

$8,700,000

$556/sq ft

May 7, 1999

Listed

$9,000,000

$575/sq ft

May 7, 1999

Listed

$9,000,000

$575/sq ft

Public Records

Aug 3, 1990

Sold

$860,000

$55/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$116,630 (+1.6%)

$6,169,862 + $4,439,537

$10,609,399

2024

$114,745 (+2.7%)

$6,048,885 + $4,128,109

$10,176,994

2023

$111,741 (+70.8%)

$5,930,280 + $3,990,210

$9,920,490

2022

$65,436 (+1.6%)

$5,814,000 + $3,723,000

$9,537,000

2021

$64,407 (+1.9%)

$3,195,746 + $2,367,218

$5,562,964

2020

$63,175 (+1.6%)

$3,133,085 + $2,320,802

$5,453,887

2019

$62,204 (+1.7%)

$3,100,960 + $2,297,006

$5,397,966

2018

$61,146 (+0.4%)

$3,040,157 + $2,251,967

$5,292,124

2017

$60,888 (+2.9%)

$2,922,105 + $2,164,521

$5,086,626

2016

$59,175 (+2.1%)

$2,922,105 + $2,164,521

$5,086,626

2015

$57,967 (+2.1%)

$2,864,809 + $2,122,080

$4,986,889

2014

$56,770 (+2.6%)

$2,766,503 + $2,049,261

$4,815,764

2012

$55,333 (+10.2%)

$2,754,000 + $2,040,000

$4,794,000

2011

$50,217 (−8.2%)

$2,700,000 + $2,000,000

$4,700,000

2010

$54,699 (−10.7%)

$2,760,000 + $1,573,000

$4,333,000

2009

$61,255 (−12.2%)

$3,000,000 + $1,710,000

$4,710,000

2008

$69,796

$4,782,400 + $4,782,400

$9,564,800

Public record

Public record
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

1.37 Acres

Year renovated

1994

Finished Sq. Ft.

12,571

Unfinished Sq. Ft.

—

Total Sq. Ft.

12,571

Year built

1994

Style

Single Family Residential

County

Santa Clara County

APN

51009026

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 21, 2026.

Jul 21, 2025 • Final

Construction

Perform an interior remodel of the kitchen and bathrooms, including raising the floor and removing walls. Replace all existing windows and install an elevator in the single-family home. Alter the existing fireplace.

Bathroom

Electrical

Kitchen

Remodel

Jun 24, 2025 • Final

Construction

Remove the existing roof and replace it with a solar roof. Install solar panels and energy storage power walls.

Battery

Electrical

Roofing

Solar

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.

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

3/10 Heat Factor

9 days above 95° expected this year, 19 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

8/10 Air Factor

16 unhealthy days expected this year, 16 days in 30 years

Provided by First Street

Historical weather

Los Gatos, CA • 95030

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

84/ 100

Very good sunlight

Sunscore

There appears to be minimal shading by surrounding buildings, terrain, and vegetation.

9.7 hrs

5.8 hrs

JuneDecember

Provided by Shadowmap

Redfin Estimate for 18911 Decatur Rd

$19,742,595

$256K under list price of $20.0M

Nearby comparable homes

The Redfin Estimate uses 4 recent nearby sales, priced between $5.2M to $9.6M.

SOLD MAY 22, 2026
$9,000,000 Last sold price
5 beds8 baths8,328 sq ft
15288 Via Pinto, Monte Sereno, CA 95030
$197/sq ft
smaller lot
27 years newer
SOLD APR 26, 2026
$9,624,500 Last sold price
4 beds6.5 baths8,710 sq ft
18331 Lexington Dr, Monte Sereno, CA 95030
$173/sq ft
2 years older
no basement
SOLD SEP 23, 2025
$6,800,000 Last sold price
7 beds9 baths6,186 sq ft
16108 Mays Ave, Monte Sereno, CA 95030
$179/sq ft
smaller lot
31 years newer
SOLD JUL 24, 2026
$5,150,000 Last sold price
4 beds3.5 baths3,442 sq ft
17660 Vista Ave, Monte Sereno, CA 95030
$218/sq ft
smaller lot
13 years older

Rental earnings

Est. $10,357 per month, based on comparable rentals

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Details provided by MLSListings and may not match the public record. Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Payment calculator

See this home in person

Nearby open houses (10)

Around this home

Schools

Market insights

Property details

Sale and tax history for 18911 Decatur Rd

Public record

Climate risks

Historical weather

Sun exposure

Redfin Estimate for 18911 Decatur Rd

Early Access listings

Nearby similar homes

New listings for sale in 95030

More real estate resources