21603 Castleton St, Cupertino, CA 95014
Property image
Property image
OFF MARKET

21603 Castleton St
Cupertino, CA 95014

Monta Vista North
  • 4 Beds
  • 3 Baths
  • 2,102 sqft

$3,664,800

Trulia Estimate
as of Aug 5, 2026
Est. Refi. Payment $22,240/mo*

$3,664,800

Trulia Estimate
as of Aug 5, 2026
Est. Refi. Payment $22,240/mo*
4 Beds
3 Baths
2,102 sqft

Local Information

  • Map ViewExplore the area around 21603 Castleton St.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Living Area
2,102 sqft
Price/Sqft
$1,743
Parking
Attached Garage

About this House

To view this property, please visit our public showing schedule on our website for available days and times. No appointment needed.

- Beautiful 4 Bedroom, 3 Bath Multi-Level Single Family Home
- Home Features Include Double-Pane Windows, Recessed Lighting & Remodeled Bathrooms
- Living Room w/ Decorative Fireplace
- Spacious Eat-In Kitchen w/ Tile Flooring, Refrigerator, Gas Cook-Top, Built-In Double Ovens, Dishwasher & Garbage Disposal
- Formal Dining Room w/ Access To Backyard
- Separate Family Room
- Upstairs Main Bedroom Suite w/ Remodeled Bathroom
- Two Additional Bedrooms Located Upstairs & One Downstairs
- Central Heat & Central Air Conditioning (Nest Thermostat)
- Attached Two-Car Garage & Driveway Parking
- Washer/Dryer In Garage
- Backyard w/ Deck/Patio & Swimming Pool
- Gardening & Swimming Pool Service Included
- Award Winning Cupertino Schools
- Tenant Responsible For Utilities
- One Small Dog (30 Pounds) or One Cat Okay w/ Additional $500 Deposit
- No Smoking
- 6 or 12 Month Lease Option
- Renter's Insurance Required

Rental Requirements: Household monthly gross income of at least three times the rent, good standing credit history & rental references. Please note, we can hold a property for a maximum of two weeks from the date of approval.

DRE # 01498174
21603 Castleton St, Cupertino, CA 95014 is a 4 bedroom, 3 bathroom, 2,102 sqft single-family home in Monta Vista North. It last sold for $587,500 on May 28, 1997 (8,973% above the $6,475 asking price). More recently, it was listed as a rental in October 2025 with an asking price of $6,475 per month. That rental listing was removed on October 20, 2025. It is currently off market. The Trulia Estimate is $3,664,800, with a rent estimate of $7,490/month.

Home Details for 21603 Castleton St

Property Information

Property Type / Style
Property Type: Single Family Home

Rental Terms, Policies & Fees

Lease Term: Contact For DetailsAvailable: now

Interior Features

Appliances & Utilities
DishwasherDisposalDryerRefrigeratorWasher
Heating & Cooling
Air ConditioningCooling System: Central Air

Exterior Features

Pool
Pool
Parking & Garage
Parking: Attached, On Site

Price History for 21603 Castleton St

DatePriceEventSource
10/20/2025$6,475ListingRemovedZillow Rentals
10/18/2025$6,475Listed For RentZillow Rentals
10/18/2025$6,475ListingRemovedZillow Rentals
10/14/2025$6,475PriceChange
Zillow Rentals
09/24/2025$6,595PriceChange
Zillow Rentals
09/03/2025$6,695PriceChange
Zillow Rentals
08/01/2025$6,795PriceChange
Zillow Rentals
07/29/2025$6,595Listed For RentZillow Rentals
08/14/2023ListingRemovedZillow Rentals
07/26/2023$5,995PriceChange
Zillow Rentals
07/20/2023$6,495PriceChange
Zillow Rentals
06/22/2023$6,775PriceChange
Zillow Rentals
05/16/2023$6,995Listed For RentZillow Rentals
05/28/1997$587,500Sold
N/A

Market trends in Cupertino

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$3.17M
$47.83K
MoM
Sale-to-List Price
104.2%
2.3%
MoM
Price per sq ft
$1.56K
$27
MoM
Available listings
79
10
MoM
Skip to last item
  • Results are loading
Skip to first item

Property Tax and Assessment

Year2025
Tax$12,240
Assessment$956,845
Home facts updated by county records

Comparable Sales for 21603 Castleton St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.07
Single-Family Home
$3,700,000
09/19/25
4
2.5
2,055
0.17
Single-Family Home
$3,800,000
01/12/26
4
3
2,102
0.13
Single-Family Home
$4,060,000
05/18/26
4
2.5
2,412
0.09
Single-Family Home
$4,000,000
01/21/26
5
3
2,412
0.29
Single-Family Home
$3,350,000
05/13/26
4
3
2,055
0.34
Single-Family Home
$2,675,000
07/09/26
4
3
1,659
0.39
Single-Family Home
$4,015,000
04/10/26
4
2.5
2,206
0.40
Single-Family Home
$3,700,000
08/26/25
4
2.5
2,319
0.42
Single-Family Home
$3,500,000
06/15/26
4
3
2,331
0.19
Single-Family Home
$3,650,000
10/10/25
3
2
1,766

Nearby homes

Get a sense of prices in the area by checking nearby homes.
Skip to last item
Skip to first item

Assigned Schools

These are the assigned schools for 21603 Castleton St.
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

Neighborhood stats provided by third party data sources.

What Locals Say about Monta Vista North

At least 24 Trulia users voted on each feature.
  • 93 % Say car is needed

  • 88 % Say it's dog friendly

  • 86 % Say parking is easy

  • 84 % Say yards are well-kept

  • 81 % Say there are sidewalks

  • 79 % Say it's quiet

  • 71 % Say people would walk alone at night

  • 65 % Say there's wildlife

  • 62 % Say neighbors are friendly

  • 62 % Say streets are well-lit

  • 61 % Say there's holiday spirit

  • 53 % Say they plan to stay for at least 5 years

  • 45 % Say there are community events

  • 38 % Say kids play outside

  • 34 % Say it's walkable to restaurants

  • 23 % Say it's walkable to grocery stores

Sourced by Trulia users. Learn more about our methodology.
  • Trulia User
    "Quiet communication. Friendly Neighbors. Lots of matured trees and great foothill view. Walk way to blackberry farm and Stevens creek. Great place to raise the family. "
  • Trulia User
    "Lived here 25 years. Close to biking and running. People in general are safe and care about their surroundings. "
  • Hwong21428
    "Safe for kids, four schools near by; from elementary to community college. Commute is convenient as well, next to 280 and 85. "
  • Vince P.
    "Wonderful area for kids, schools and local commutes. If you can afford the high rents and home prices "
  • Rgmenon
    "Very family friendly neighborhood. easy, walk to elementary, middle and high school. Excellent access to everything: jobs, parks, open space preserves (McClellan Ranch, Fremont Older), golf courses (Blackberry Farm and Deep CliffO"
  • Rgmenon
    "Have lived here for 14 years and it's a wonderful, family friendly neighborhood. Walking distance to nice hikes and with McClellan Ranch park, Blackberry Farm and Fremont Older Open Space Preserve close by."
  • Will O.
    "Family-friendly neighborhood to the point of excess. If you want to do anything PG-13 or higher, you'll have to drive to Sunnyvale."
  • Chefrociogomez
    "Traffic on the way back home from work all the time. The schools traffic is always challenging (Monta Vista, Kennedy and Lincoln)."
  • V_preising
    "Good schools and a nice community. I’ve live here over 15 years and have seen it grow up. Only issue is cost for housing"
  • Titosayshi
    "It is a very good school district, in the middle of everything, and close to my workplace. It also has several parks, restaurants, and places to hang out."
  • heytae
    "A very quiet street in one of the most sought-after neighborhoods of Cupertino. Right next to a nature's preserve with deers who sometimes walk right by the home."
  • Jenny
    "Everything about this area is perfect. Very large newer houses, beautifle parks, nice mountain view and golf course within 3 - 5 minute walking distance, quiet, well landscaped. It is also near some of the best schools in California and within 10 minute drive to top companies like HP, Apple, Symantec. "

LGBTQ Local Legal Protections

Apartments for Rent

Skip to last item
Skip to first item

Explore by feature - Pet Friendly

Explore by feature - Garage

Explore by feature - Air Conditioning

Explore by feature - Pool

Explore by feature - Washer/dryer

Explore by feature - Outdoor Space

Homes for sale near 21603 Castleton St

Skip to last item
Skip to first item

Off Market Homes Near 21603 Castleton St

Skip to last item
Skip to first item