New Price! 100k Price Improvement! Nestled in a serene, forest-like setting among towering Redwoods and mature landscaping, this exceptional Upper Castro Valley home has been meticulously maintained and offers rare privacy with close proximity to everyday conveniences and top rated schools. A striking exterior opens to an inviting floor plan with vaulted ceilings and oversized windows that flood the home with natural light and hillside views. Seamless flow between the living, dining, and kitchen areas creates an ideal space for both daily living and entertaining. The chef’s kitchen features a large island, stone countertops, designer tile backsplash, and premium stainless-steel appliances including a Wolf 6-burner gas range and Miele double ovens. Cook and dine while enjoying spectacular scenic views. The living room with vaulted ceilings and family room with stone fireplace offer comfort and style. Upstairs, the oversized primary suite boasts tranquil views and a spa-like bath with soaking tub and glass shower, plus two additional bedrooms. The lower level includes a family room and office, fourth bedroom, full bath, workout room and storage. Expansive decks, outdoor kitchen, pergola dining, spa, fire pit, level lawn and water features create a true indoor-outdoor retreat. This is a destination, not a backyard! This home includes a 2-car garage and EV charger and is commuter friendly with access to nearby BART and freeways. Don't miss this exceptional opportunity to start your next chapter in this elegant custom home.
Pending
Price cut: $100K (5/21)
$1,899,000
18100 De Souza Pl, Castro Valley, CA 94546
4beds
3,400sqft
Single Family Residence
Built in 1999
7,405 Square Feet Lot
$1,859,000 Zestimate®
$559/sqft
$-- HOA
What's special
Water featuresLevel lawnLarge islandOversized primary suiteSpectacular scenic viewsTranquil viewsInviting floor plan
- 60 days |
- 497 |
- 13 |
Zillow last checked:
Listing updated:
Listed by:
Leah Tounger DRE #01400141 510-701-6497,
KW Advisors East Bay
Source: bridgeMLS/CCAR/Bay East AOR,MLS#: 41132606
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
Rooms
- Room types: Family Room, Formal Dining Room
Kitchen
- Features: Breakfast Nook, Stone Counters, Dishwasher, Double Oven, Disposal, Gas Range/Cooktop, Kitchen Island, Microwave, Oven Built-in, Refrigerator, Updated Kitchen
Heating
- Zoned
Cooling
- Central Air
Appliances
- Included: Dishwasher, Double Oven, Gas Range, Microwave, Oven, Refrigerator, Dryer, Washer
- Laundry: Dryer, Laundry Room, Washer
Features
- Breakfast Nook, Updated Kitchen
- Flooring: Hardwood, Laminate, Tile, Carpet
- Windows: Window Coverings
- Number of fireplaces: 1
- Fireplace features: Gas
Interior area
- Total structure area: 3,400
- Total interior livable area: 3,400 sqft
Property
Parking
- Total spaces: 4
- Parking features: Attached, Parking Spaces, Garage Door Opener
- Garage spaces: 2
Features
- Levels: Three or More Stories
- Exterior features: Back Yard, Front Yard, Garden/Play, Side Yard, Sprinklers Automatic, Sprinklers Front, Storage, Terraced Down, Landscape Back, Landscape Front, Yard Space
- Pool features: None
- Fencing: Partial
Lot
- Size: 7,405 Square Feet
- Features: Sloped Down, Sprinklers In Rear
Details
- Additional structures: Shed(s)
- Parcel number: 84C86025
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Traditional
- Property subtype: Single Family Residence
Materials
- Stucco
Condition
- Existing
- New construction: No
- Year built: 1999
Utilities & green energy
- Electric: No Solar
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Individual Electric Meter, Individual Gas Meter
Community & HOA
Community
- Security: Carbon Monoxide Detector(s), Double Strapped Water Heater, Fire Suppression System, Smoke Detector(s)
HOA
- Has HOA: No
Location
- Region: Castro Valley
Financial & listing details
- Price per square foot: $559/sqft
- Tax assessed value: $826,846
- Date on market: 4/28/2026
- Listing terms: Cash,Conventional,FHA,VA Loan
Estimated market value
$1,859,000
$1.77M - $1.95M
$5,624/mo
Price history
| Date | Event | Price |
|---|---|---|
| 6/5/2026 | Pending sale | $1,899,000$559/sqft |
Source:  bridgeMLS/CCAR/Bay East AOR #41132606 Report a problem | ||
| 5/21/2026 | Price change | $1,899,000-5%$559/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41132606 Report a problem | ||
| 4/28/2026 | Listed for sale | $1,999,000+273.6%$588/sqft |
Source: bridgeMLS/CCAR/Bay East AOR #41132606 Report a problem | ||
| 7/9/1999 | Sold | $535,000$157/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | -- | $826,846 +2% |
| 2024 | $10,392 +1.6% | $810,636 +2% |
| 2023 | $10,230 +1.9% | $794,744 +2% |
| 2022 | $10,037 +2.6% | $779,163 +2% |
| 2021 | $9,782 +2.3% | $763,890 +1% |
| 2020 | $9,560 -1.8% | $756,061 +2% |
| 2019 | $9,739 +5.6% | $741,240 +2% |
| 2018 | $9,218 | $726,708 +2% |
| 2017 | $9,218 +5.1% | $712,461 +2% |
| 2016 | $8,773 +7% | $698,495 +1.5% |
| 2015 | $8,200 +1.1% | $688,004 +2% |
| 2014 | $8,111 | $674,527 +0.5% |
| 2013 | -- | $671,482 +2% |
| 2012 | -- | $658,317 +2% |
| 2011 | -- | $645,411 +0.8% |
| 2010 | -- | $640,590 -0.2% |
| 2009 | -- | $642,113 +2% |
| 2008 | -- | $629,524 +2% |
| 2007 | -- | $617,181 +2% |
| 2006 | -- | $605,082 +2% |
| 2005 | -- | $593,220 +2% |
| 2004 | -- | $581,589 +1.9% |
| 2003 | -- | $570,931 +2% |
| 2002 | -- | $559,736 +2% |
| 2001 | $5,982 | $548,760 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
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Climate risks
Neighborhood: 94546
Nearby schools
GreatSchools rating
- 9/10Proctor Elementary SchoolGrades: K-5Distance: 0.4 mi
- 7/10Canyon Middle SchoolGrades: 6-8Distance: 1 mi
- 9/10Castro Valley High SchoolGrades: 9-12Distance: 0.8 mi
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- California
- Alameda County
- Castro Valley
- 94546
- 18100 De Souza Pl
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