OFF MARKET

Off market jul 2017 for $2.3M

$4,150,533

Est. refi paymentEst. refi $15,649/mo

•

2,102

sq ft

21583 Castleton St, Cupertino, CA 95014

About this home

Gorgeous remodel nestled in sought-after West of Bubb neighborhood offers serenity in the heart of Silicon Valley! This sunny, bright home is within close proximity to top Cupertino schools, Linda Vista Park, hiking, golf & easy commute to local employers. Impressive curb appeal offers expansive front lawn opens to bright, spacious trip-level floor plan. Updated kitchen complete with granite counter tops, new gas stoves & oven, microwave, bay window, recess lights, skylight, dining area offers custom cabinetry with glass insert and wine rack. Elegant living room features recess lights, gleaming hardwood floor, wood burning fireplace, picture windows showcase generous backyard views. Separate dining room located adjacent to the kitchen ideal for social gatherings & entertaining guests. Relaxing, functional family room located close to main floor bedroom & bathroom ideal for in-laws & guests. Private backyard features deck, mature landscaping, fruit trees. New carpet, new interior paint.

Single-familyProperty Type

1966Year Built

7,500 sq ftLot Size

$1,975Est. Price/Sq.Ft.

2 car garageParking

Listed by Mary Tan •DRE #00861682 • Coldwell Banker Realty

Listed by George Tan •DRE #01891525 • Coldwell Banker Realty

Contact: 408-318-0976

Bought with Coco Tan •DRE #01376998 • Keller Williams Realty-Silicon Valley

Redfin checked: 2 minutes ago

•Source:MLSListings #ML81655867

Redfin Estimate

$4,150,533

$1.9M since sold in July 2017$171K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 15.8% higher than the average sale price ($3.58M) of 5 comparable homes.

SOLD AUG 18, 2026
$4,080,000
A
4 beds3 baths2,119 sq ft
11113 Wilkinson Ave, Cupertino, CA 95014
SOLD JAN 12, 2026
$3,800,000
B
4 beds3 baths2,102 sq ft
11112 Wilkinson, Cupertino, CA 95014
Realty ONE Group Complete
SOLD JUN 15, 2026
$3,500,000
C
4 beds3 baths2,331 sq ft
1144 Elmsford Dr, Cupertino, CA 95014
SOLD SEP 28, 2026
$3,869,000
D
5 beds3 baths2,412 sq ft
21570 Edward Way, Cupertino, CA 95014
SOLD JUL 9, 2026
$2,675,000
E
4 beds3 baths1,659 sq ft
1041 November Dr, Cupertino, CA 95014

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Earn from this home

Sell

$2,448,630

Est. take-home

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Refinance

Est. cash available

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Rent

$7,811/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

104.8%

0.4% MoM

Median sale price

$2.9M

$151K MoM

Avg. days on market

16d

1 days MoM

Recently sold homes

3 MoM

New listings for sale

EARLY ACCESS
$1,498,000
3 beds2 baths1,224 sq ft
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OPEN FRI, 4PM TO 7PM
$3,999,888
4 beds4 baths3,042 sq ft
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OPEN THU, 9:30AM TO 12:30PM
$4,799,000
5 beds3.5 baths3,618 sq ft
22551 Ricardo Rd, Cupertino, CA 95014
OPEN THU, 9:30AM TO 12:30PM
$2,495,000
3 beds2 baths1,622 sq ft
10534 Sterling Blvd, Cupertino, CA 95014
OPEN SAT, 1:30PM TO 4:30PM
$2,698,000
3 beds2 baths1,201 sq ft
854 Alderbrook Ln, Cupertino, CA 95014
$2,300,000
3 beds2 baths2,114 sq ft
10700 Stevens Canyon Rd, Cupertino, CA 95014
3D WALKTHROUGH
$2,599,999
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LISTED BY REDFIN
$1,092,888
2 beds2 baths1,154 sq ft
10241 Nile Dr, Cupertino, CA 95014
VIDEO TOUR
$1,980,000
4 beds4 baths1,948 sq ft
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3D WALKTHROUGH
$1,728,000
3 beds2 baths1,610 sq ft
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See all

Provided by Redfin

Sale history for 21583 Castleton St

Date

Event

Price

MLSListings #ML81655867

Jul 20, 2017

Sold

$2,300,000

$1,094/sq ft

Jun 22, 2017

Pending

—

Jun 14, 2017

Listed

$2,048,888

$975/sq ft

Public Records

Sep 19, 1997

Sold

$619,000

$294/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$35,832 (+12.8%)

$2,228,321 + $915,068

$3,143,389

2024

$31,756 (+4.6%)

$2,184,629 + $806,771

$2,991,400

2023

$30,357 (+1.4%)

$2,141,794 + $522,564

$2,664,358

2022

$29,947 (+1.0%)

$2,099,799 + $415,583

$2,515,382

2021

$29,641 (+1.2%)

$2,058,627 + $407,435

$2,466,062

2020

$29,284 (+2.4%)

$2,018,262 + $399,447

$2,417,709

2019

$28,585 (+2.7%)

$1,997,568 + $395,352

$2,392,920

2018

$27,829 (+152.9%)

$1,958,400 + $387,600

$2,346,000

2017

$11,003 (+3.4%)

$619,118 + $232,505

$851,623

2016

$10,643 (+0.9%)

$619,118 + $232,505

$851,623

2015

$10,553 (+2.7%)

$606,979 + $227,947

$834,926

2014

$10,276 (+2.6%)

$586,151 + $220,126

$806,277

2012

$10,017 (+4.2%)

$583,502 + $219,132

$802,634

2011

$9,617 (+2.1%)

$572,061 + $214,836

$786,897

2010

$9,422

$560,845 + $210,624

$771,469

2009

$9,418 (+6.4%)

$556,654 + $209,050

$765,704

2008

$8,854

$547,037 + $205,439

$752,476

Tax history for 21583 Castleton St

Year

Property tax

Land + Additions

Assessment*

2025

$35,832 (+12.8%)

$2,228,321 + $915,068

$3,143,389

2024

$31,756 (+4.6%)

$2,184,629 + $806,771

$2,991,400

2023

$30,357 (+1.4%)

$2,141,794 + $522,564

$2,664,358

2022

$29,947 (+1.0%)

$2,099,799 + $415,583

$2,515,382

2021

$29,641 (+1.2%)

$2,058,627 + $407,435

$2,466,062

2020

$29,284 (+2.4%)

$2,018,262 + $399,447

$2,417,709

2019

$28,585 (+2.7%)

$1,997,568 + $395,352

$2,392,920

2018

$27,829 (+152.9%)

$1,958,400 + $387,600

$2,346,000

2017

$11,003 (+3.4%)

$619,118 + $232,505

$851,623

2016

$10,643 (+0.9%)

$619,118 + $232,505

$851,623

2015

$10,553 (+2.7%)

$606,979 + $227,947

$834,926

2014

$10,276 (+2.6%)

$586,151 + $220,126

$806,277

2012

$10,017 (+4.2%)

$583,502 + $219,132

$802,634

2011

$9,617 (+2.1%)

$572,061 + $214,836

$786,897

2010

$9,422

$560,845 + $210,624

$771,469

2009

$9,418 (+6.4%)

$556,654 + $209,050

$765,704

2008

$8,854

$547,037 + $205,439

$752,476

*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

7,500 Sq. Ft.

Year renovated

2024

Sq. Ft.

2,472

Year built

2024

Style

Single Family Residential

County

Santa Clara County

APN

35618058

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 22, 2026.

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

Sep 25, 2023 • Active

Residential addition

Construct first and second floor additions, an attached accessory dwelling unit, a covered porch, a deck, and a second-floor balcony. Remodel the residential building, upgrade the main electrical service panel, and install a new tankless water heater, heating and air conditioning system, and skylights. Remove an existing fireplace and revise the shear wall design.

Addition

ADU

Electrical

HVAC

Plumbing

Remodel

Jul 19, 2019 • Final

Magnet converted

Remove and replace the roof above a garage. Install a new single-ply TPO membrane system.

Roofing

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

Virtual Tour

Bedroom Information
# of Bedrooms (Minimum): 4
# of Bedrooms (Maximum): 4
Bedrooms: Walk-In Closet

Bathroom Information
# of Baths (Full): 3
Bathroom Description: Primary (Stall Shower(s)), Shower and Tub, Tile, Updated Bath(s)

Room Information
Attic, Formal Entry
Family Room Description: Separate Family Room
Dining Room Description: Breakfast Room, Formal Dining Room
Kitchen Description: 220 Volt Outlet, Cooktop (Gas), Countertop (Granite), Dishwasher, Microwave, Oven (Built-In), Skylight(s), Other (See Remarks)

Interior Features
Laundry: In Garage
Flooring: Carpet, Hardwood, Tile

Fireplace Information
Has Fireplace
Fireplace Description: In Family Room, In Living Room, Wood-Burning
Fireplaces (Minimum): 2

Heating & Cooling Information
Heating: Central Forced Air

Exterior

Exterior Features
View: Mountains
Fencing: Fenced, Wood
Roof: Bitumen, Shingle
Yard/Grounds: Backyard, Deck, Fenced

Building Information
Style: Other (See Remarks)
Subclass: Single Family Home
Building Type: Detached
Construction Type: Wood, Wood Frame
Concrete Perimeter, Crawl Space

Property Features
Amenities: Skylight(s), Walk-In Closet
Living Sq. Ft.: 2,102
Special Features: Bathroom Features, Kitchen Features

Lot Information
Lot Description: Grade (Gently Sloped)
Lot Size Area Minimum Units: Sq. Ft.
Lot Size Area Maximum Units: Sq. Ft.
Lot Size Source: Other (See Remarks)
Zoning: R1

Financial

Tax/Assessment Information
City Transfer Tax: No

Utilities

Utility Information
Energy Features: Double Pane Windows, Skylight(s)
Sewer Septic: Sewer Connected
Utilities: Public Utilities

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: 4
Baths: 5.0
Sq. Ft.: 2,472
Stories: 2.0
Lot Size: 7,500 square feet
Style: Single Family Residential
Year Built: 2024
Year Renovated: 2024
County: Santa Clara County
APN: 35618058

Home facts updated by county records on Aug 22, 2026

Other

Miscellaneous Information
Incorporated: Yes

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

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

$3.94M – $4.77M

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Home values near 21583 Castleton St

Data from public records.

Address	Redfin Estimate
21584 Castleton Street, Cupertino, CA 4 Beds \| 3 Baths \| 2327 Sq. Ft.	$3,746,778
21604 Castleton Street, Cupertino, CA 4 Beds \| 3 Baths \| 2248 Sq. Ft.	$3,821,982

Address	Redfin Estimate
21623 Castleton Street, Cupertino, CA 3 Beds \| 2 Baths \| 1571 Sq. Ft.	$3,081,156
21594 Castleton Street, Cupertino, CA 5 Beds \| 3 Baths \| 2412 Sq. Ft.	$4,176,774

Address	Redfin Estimate
21603 Castleton Street, Cupertino, CA 3 Beds \| 3 Baths \| 2102 Sq. Ft.	$3,564,427
21574 Castleton Street, Cupertino, CA 4 Beds \| 2.5 Baths \| 2135 Sq. Ft.	$3,645,626

Property information provided by MLSListings when last listed in 2017. 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 95014, CA

Sale history for 21583 Castleton St

Tax history for 21583 Castleton St

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 95014

Home values near 21583 Castleton St

More real estate resources