Seller's Agent in 2026
Wen Guo RE Group
KW Advisors
(650) 817-5000
354 Total Sales
1455 Bittern Dr Sunnyvale, CA 94087
4
Beds
2
Baths
2,036
Sq Ft
6,490
Sq Ft Lot Lot
Highlights
- Solar Power System
- Granite Countertops
- Neighborhood Views
- Louis E. Stocklmeir Elementary School Rated A-
- Mud Room
- Den
About This Home
As of March 2026First time on the market after 50 years! Top location close to Apple Park, East facing front door, perfect layout, and move in ready, this home checked all the boxes! It offers ideal separation of spaces with an active gathering wing and all 4 bedrooms quiet sleeping quarter. A formal living room and a comfortable family room provide flexibility, while a sun filled dining room anchors the home with warmth. The inviting kitchen features a double oven, large skylight, and ample storage, opening directly to the family room. The bright living room includes another skylight and a functional office desk area. The dining room showcases large windows, tray ceiling, and sliding doors to the lush backyard for seamless indoor outdoor living. The primary suite offers a walk in closet, en suite bath with rain shower, and access to a serene backyard. Separate laundry room is full of potential for functioning as a mud room, or your future bath laundry combo. Highlights include hardwood floors, tasteful wood detailing, solar panels, AC, double pane windows, and EV charger. The low maintenance front yard, courtyard and standout backyard with deck, pergola, seating areas, orange tree, turf, and storage sheds complete the home. Top Cupertino schools. Welcome home!
Last Agent to Sell the Property
KW Advisors License #70010161 Listed on: 02/26/2026
Home Details
Home Type
- Single Family
Year Built
- Built in 1962
Lot Details
- Wood Fence
- Back Yard Fenced
- Zoning described as R0
Parking
- 2 Car Attached Garage
- Electric Vehicle Home Charger
Home Design
- Composition Roof
Interior Spaces
- 2,036 Sq Ft Home
- 1-Story Property
- Ceiling Fan
- Skylights in Kitchen
- Fireplace With Gas Starter
- Mud Room
- Living Room with Fireplace
- Formal Dining Room
- Den
- Neighborhood Views
- Crawl Space
Kitchen
- Open to Family Room
- Double Oven
- Electric Oven
- Gas Cooktop
- Range Hood
- Dishwasher
- Granite Countertops
Bedrooms and Bathrooms
- 4 Bedrooms
- Walk-In Closet
- 2 Full Bathrooms
Laundry
- Laundry Room
- Washer and Dryer
Additional Features
- Solar Power System
- Shed
- Forced Air Heating and Cooling System
Listing and Financial Details
- Assessor Parcel Number 309-24-015
Matterport 3D Tour
Ownership History
Date
Name
Owned For
Owner Type
Purchase Details
Listed on
Feb 26, 2026
Closed on
Mar 13, 2026
Sold by
Carlo Castaldini and Marga Castaldini
Bought by
Yang Tengchou
Seller's Agent
Wen Guo RE Group
KW Advisors
Buyer's Agent
Tengchou Yang
SALA Homes Realty & Development
List Price
$2,890,000
Sold Price
$3,250,000
Premium/Discount to List
$360,000
12.46%
Views
46
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
-55.08%
Original Mortgage
$2,113,800
Outstanding Balance
$2,113,800
Interest Rate
5%
Mortgage Type
New Conventional
Estimated Equity
$934,649
Purchase Details
Closed on
Aug 26, 2021
Sold by
Castaldini Carlo and Castaldini Marga
Bought by
Castaldini Carlo and Castaldini Marga
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Purchase History
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Grant Deed | $3,169,000 | First American Title | |
| Interfamily Deed Transfer | -- | None Available |
Source: Public Records
Mortgage History
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Open | $2,113,800 | New Conventional |
Source: Public Records
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft |
|---|---|---|---|---|
| 03/25/2026 03/25/26 | Sold | $3,250,000 | +12.5% | $1,596 / Sq Ft |
| 03/04/2026 03/04/26 | Pending | -- | -- | -- |
| 02/26/2026 02/26/26 | For Sale | $2,890,000 | -- | $1,419 / Sq Ft |
Source: MLSListings
Tax History
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $3,273 | $280,008 | $67,017 | $212,991 |
| 2024 | $3,273 | $274,518 | $65,703 | $208,815 |
| 2023 | $3,247 | $269,136 | $64,415 | $204,721 |
| 2022 | $3,184 | $263,859 | $63,152 | $200,707 |
| 2021 | $3,070 | $258,686 | $61,914 | $196,772 |
| 2020 | $3,032 | $256,035 | $61,280 | $194,755 |
| 2019 | $2,965 | $251,016 | $60,079 | $190,937 |
| 2018 | $2,894 | $246,095 | $58,901 | $187,194 |
| 2017 | $2,878 | $241,271 | $57,747 | $183,524 |
| 2016 | $2,777 | $236,541 | $56,615 | $179,926 |
| 2015 | $2,759 | $232,989 | $55,765 | $177,224 |
| 2014 | $2,689 | $228,426 | $54,673 | $173,753 |
Source: Public Records
Agents Affiliated with this Home
-
Wen Guo RE Group
-
Tengchou Yang
T
Buyer's Agent in 2026
Tengchou Yang
SALA Homes Realty & Development
(650) 218-2178
1 Total Sale
Map
Source: MLSListings
MLS Number: ML82030433
APN: 309-24-015
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