Off market dec 2002 for $940K

$3,631,866

Est. refi paymentEst. refi $5,562/mo

•

2,895

sq ft

21643 CASTLETON St, Cupertino, CA 95014

About this home

Single-familyProperty Type

1966Year Built

7,500 sq ftLot Size

$1,255Est. Price/Sq.Ft.

2 car garageParking

Listed by Pia A. Berryman •DRE #00663884 • Coldwell Banker Realty

Bought with Minhua Jin • Evergreen Investment Co.

Redfin checked: a minute ago

•Source:MLSListings #ML80260368

Redfin Estimate

$3,631,866

$2.7M since sold in December 2002$56K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 1.9% higher than the average sale price ($3.56M) of 5 comparable homes.

SOLD OCT 8, 2026
$3,530,000
A
4 beds3 baths2,119 sq ft
10936 Linda Vista Dr, Cupertino, CA 95014
SOLD OCT 13, 2026
$3,270,000
B
4 beds2.5 baths1,787 sq ft
21446 Holly Oak Dr, Cupertino, CA 95014
SOLD AUG 18, 2026
$4,080,000
C
4 beds3 baths2,119 sq ft
11113 Wilkinson Ave, Cupertino, CA 95014
SOLD OCT 6, 2026
$3,610,000
D
4 beds2 baths1,998 sq ft
21629 Terrace Dr, Cupertino, CA 95014
SOLD SEP 4, 2026
$3,330,000
E
3 beds2 baths1,656 sq ft
11055 La Paloma Dr, Cupertino, CA 95014

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Earn from this home

Sell

$3,208,193

Est. take-home

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Est. cash available

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Rent

$8,573/mo

Redfin rental estimate

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Market trends in 95014, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

105.4%

+0.5% MoM

Median sale price

$2.8M

$11K MoM

Avg. days on market

13d

3 days MoM

Recently sold homes

1 MoM

New listings for sale

OPEN TODAY, 1:30PM TO 4:30PM
$3,888,000
6 beds5.5 baths3,569 sq ft
10221 Stern Ave, Cupertino, CA 95014
OPEN TODAY, 1PM TO 4PM
$1,148,000
3 beds1.5 baths1,265 sq ft
21084 Red Fir Ct, Cupertino, CA 95014
OPEN TODAY, 12PM TO 2PM
$2,998,000
3 beds2.5 baths1,956 sq ft
11657 Palm Spring Ct, Cupertino, CA 95014
OPEN TODAY, 1PM TO 4PM
$2,988,000
4 beds2 baths1,876 sq ft
7522 Kingsbury Pl, Cupertino, CA 95014
$3,295,000
2 beds1 bath654 sq ft
10590 San Leandro Ave, Cupertino, CA 95014
OPEN TODAY, 2PM TO 4PM
$698,000
1 bed1 bath871 sq ft
20736 Celeste Cir, Cupertino, CA 95014
COMING SOON
$1,299,888
3 beds2 baths1,193 sq ft
20500 Town Center Ln #193, Cupertino, CA 95014
OPEN TODAY, 1PM TO 4PM
$1,448,800
3 beds2.5 baths1,551 sq ft
20276 Pinntage Pkwy, Cupertino, CA 95014
See all

Provided by Redfin

Sale history for 21643 CASTLETON St

Date

Event

Price

Public Records

Dec 23, 2002

Sold

$940,000

$325/sq ft

MLSListings #ML80260368

Dec 30, 2002

Listing Removed

—

Nov 24, 2002

Sold

$940,000

$325/sq ft

Nov 9, 2002

Listed

$940,000

$325/sq ft

Public Records

Jul 5, 2001

Sold

$950,000

$328/sq ft

MLSListings #ML80121933

Jul 5, 2001

Listing Removed

—

Jun 4, 2001

Sold

$950,000

$328/sq ft

Apr 20, 2001

Listed

$999,998

$345/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$18,877 (+2.8%)

$1,034,106 + $523,713

$1,557,819

2024

$18,361 (+0.9%)

$1,013,830 + $513,445

$1,527,275

2023

$18,193 (+0.8%)

$993,951 + $503,378

$1,497,329

2022

$18,044 (+1.1%)

$974,462 + $493,508

$1,467,970

2021

$17,851 (+1.3%)

$955,355 + $483,832

$1,439,187

2020

$17,630 (+2.5%)

$936,623 + $474,346

$1,410,969

2019

$17,199 (+2.9%)

$927,020 + $469,483

$1,396,503

2018

$16,711 (+0.7%)

$908,844 + $460,278

$1,369,122

2017

$16,598 (+3.3%)

$873,553 + $442,405

$1,315,958

2016

$16,067 (+0.7%)

$873,553 + $442,405

$1,315,958

2015

$15,948 (+8.1%)

$856,425 + $433,731

$1,290,156

2014

$14,751 (+8.4%)

$827,037 + $352,171

$1,179,208

2012

$13,606 (+4.2%)

$823,300 + $282,270

$1,105,570

2011

$13,053 (+1.6%)

$807,157 + $276,736

$1,083,893

2010

$12,848

$791,331 + $271,310

$1,062,641

2009

$12,843 (+5.9%)

$785,417 + $269,283

$1,054,700

2008

$12,124

$771,847 + $264,631

$1,036,478

Tax history for 21643 CASTLETON St

Year

Property tax

Land + Additions

Assessment*

2025

$18,877 (+2.8%)

$1,034,106 + $523,713

$1,557,819

2024

$18,361 (+0.9%)

$1,013,830 + $513,445

$1,527,275

2023

$18,193 (+0.8%)

$993,951 + $503,378

$1,497,329

2022

$18,044 (+1.1%)

$974,462 + $493,508

$1,467,970

2021

$17,851 (+1.3%)

$955,355 + $483,832

$1,439,187

2020

$17,630 (+2.5%)

$936,623 + $474,346

$1,410,969

2019

$17,199 (+2.9%)

$927,020 + $469,483

$1,396,503

2018

$16,711 (+0.7%)

$908,844 + $460,278

$1,369,122

2017

$16,598 (+3.3%)

$873,553 + $442,405

$1,315,958

2016

$16,067 (+0.7%)

$873,553 + $442,405

$1,315,958

2015

$15,948 (+8.1%)

$856,425 + $433,731

$1,290,156

2014

$14,751 (+8.4%)

$827,037 + $352,171

$1,179,208

2012

$13,606 (+4.2%)

$823,300 + $282,270

$1,105,570

2011

$13,053 (+1.6%)

$807,157 + $276,736

$1,083,893

2010

$12,848

$791,331 + $271,310

$1,062,641

2009

$12,843 (+5.9%)

$785,417 + $269,283

$1,054,700

2008

$12,124

$771,847 + $264,631

$1,036,478

*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

4.5

Stories

Lot width

—

Lot depth

—

Lot size

7,500

Year renovated

1966

Sq. Ft.

2,895

Year built

1966

Style

Single Family Residential

County

Santa Clara County

APN

35618063

Parking Spaces

Basement

Accessible

HOA Dues

—

Garage

Yes

Features

Views, Green

Last updated by owner on Apr 19, 2025.

R1-7.5

Single-Family Residential Zone

Single-family residence districts are intended to create, preserve and enhance areas suitable for detached dwellings in order to: Enhance the identity of residential neighborhoods; Ensure provision of light, air and a reasonable level of privacy to individual residential parcels; Ensure a reasonable level of compatibility in scale of structures within residential neighborhoods; and Reinforce the predominantly low-intensity setting in the community.

Permitted uses

Include but are not limited to:

Housing-Single unit
Housing-Senior
Housing-Other
Infrastructure

Dec 7, 2022 • Final

Residential solar

Install a roof-mounted photovoltaic system on a residential building.

Electrical

Solar

Jul 19, 2019 • Final

Residential addition

Construct a one-story addition and upgrade the electrical panel. Relocate the main electrical panel, revise the beam size in the family room, and swap the locations of the laundry room and bathroom.

Addition

Electrical

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 Information
Garage (Minimum): 2
Garage (Maximum): 2
Parking Description: Attached Garage
Garage Spaces: 2

Interior

Bedroom Information
# of Bedrooms (Minimum): 3
# of Bedrooms (Maximum): 3

Bathroom Information
# of Baths (Full): 2
# of Baths (1/2): 1
# of Baths (Minimum): 3
# of Baths (Maximum): 3
Bathroom Description: Shower Over Tub, Tubs, Stall Shower

Room Information
Bonus/Hobby Room, Den/Study/Office, Formal Entry
Family Room Description: Separate Family Room
Dining Room Description: Formal Dining Room
Kitchen Description: Dishwasher, Cooktop, Garbage Disposal, Microwave, 2+ Ovens, Oven (Self Cleaning), Oven (Built-In), 220 Volt Outlet, Hookups (Gas)

Interior Features
Laundry: In Laundry Room, 220 Volt Outlet
Flooring: Tile, Carpet (Wall-to-Wall), Vinyl/Linoleum

Fireplace Information
Fireplace Description: In Living Room, Wood-Burning, Fireplace Available

Heating & Cooling Information
Heating: Forced Air

Exterior

Exterior Features
View: Mountains, Local/Neighborhood, City Lights
Roof: Tile
Yard/Grounds: Patio(s), Sprinkler(s) (Front), Sprinkler(s) (Rear), Sprinkler(s) (Auto), Barbecue Area, Deck, Fenced

Building Information
Builder Architect: DITZ CRANE
Style: Traditional
Subclass: Single Family Home
Building Type: Detached
Exterior: Wood, Stucco
Concrete Perimeter and Slab
Building Height (Minimum): 2
Building Height (Maximum): 2

Pool Information
Pool Description: In-Ground (Concrete), Sweep, Heated (Solar)

Property Features
Amenities: Window Covering(s)
Communication: Cable TV Available
Living Sq. Ft.: 2,119

Property Information
Property Primary ID: 113812

Lot Information
Lot Description: Grade (Level)
Lot Size Area Minimum Units: Sq. Ft.
Lot Size Area Maximum Units: Sq. Ft.
Zoning: R1

Financial

Tax/Assessment Information
City Transfer Tax: No

Utilities

Utility Information
Energy Features: Insulation (Unknown)
Sewer Septic: Sewer in Street, Sewer Connected

Water Information
Water: Public

Location

Multi-Unit Information
# of Stories: 2

School Information
Elementary School: Abraham Lincoln Elementary
Elementary School District: Cupertino Union
Middle School: John F. Kennedy Middle
High School: Monta Vista High
High School District: Fremont Union High

Public facts

Beds: 5
Baths: 4.5
Sq. Ft.: 2,895
Stories: 2.0
Parking Spaces: 2
Basement: No
Accessible: No
Lot Size: 7,500 square feet
Style: Single Family Residential
Year Built: 1966
Year Renovated: 1966
County: Santa Clara County
APN: 35618063
HOA Dues: —
Garage: Yes
Features: Views, Green

Home facts updated by owner on Apr 19, 2025

Around this home

Schools

Abraham Lincoln Elementary School

Public K-5 • Assigned • 0.5mi

9/10

John F. Kennedy Middle School

Public 6-8 • Assigned • 0.3mi

9/10

Monta Vista High School

Public 9-12 • Assigned • 0.5mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

The Cupertino housing market remains competitive. Over the past three months, homes have received an average of four offers and sold in about 10 days. The median home sale price reached $3.2 million, representing a 15.3% increase year over year.
2 weeks ago • Cupertino
Fifi Li
Redfin Premier agent
124 deals
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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

4/10 Heat Factor

8 days above 95° expected this year, 17 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, 17 days in 30 years

Provided by First Street

Historical weather

Cupertino, CA • 95014

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 4.9 hours in December, placing it above the U.S. average for solar exposure.

10.8 hrs

4.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$3.45M – $4.18M

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Home values near 21643 CASTLETON St

Data from public records.

Address	Redfin Estimate
21623 Castleton St, Cupertino, CA 3 Beds \| 2 Baths \| 1571 Sq. Ft.	$3,058,746
21603 Castleton St, Cupertino, CA 3 Beds \| 3 Baths \| 2102 Sq. Ft.	$3,482,761

Address	Redfin Estimate
21673 Castleton St, Cupertino, CA 4 Beds \| 3 Baths \| 2119 Sq. Ft.	$3,608,490
21604 Castleton St, Cupertino, CA 4 Beds \| 3 Baths \| 2248 Sq. Ft.	$3,764,214

Address	Redfin Estimate
21683 Castleton St, Cupertino, CA 5 Beds \| 3 Baths \| 2300 Sq. Ft.	$3,733,258
21593 Castleton St, Cupertino, CA 5 Beds \| 3 Baths \| 2604 Sq. Ft.	$3,605,467

Property information provided by MLSListings when last listed in 2002. This data may not show owner updates. 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 95014, CA

Sale history for 21643 CASTLETON St

Tax history for 21643 CASTLETON St

Public record

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 95014

Home values near 21643 CASTLETON St

More real estate resources