See Home Value
Castro Valley 94546
18100 De Souza Pl
$1,790,000
● House - Off Market

18100 De Souza Pl

Castro Valley, CA 94546
bedrooms
4 Beds
bathrooms
3 Baths, 1 Half Bath
square feet
3,400 Ft²
$9,325
Est. Monthly

About This Property

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.
Unit Size
3,400 Ft²
Days on Market
83 days
Land Size
0.17 acres
Price per sqft
$559
Property Type
House
Property Taxes
-
HOA Dues
-
Year Built
1999

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Last updated: 4 months ago (bridgeMLS/CCAR/Bay East AOR #41132606)

Price History

Date / Event Date Event Price
Jul 20, 2026 Sold
Sold
Jun 6, 2026 In contract -
In contract
May 22, 2026 Price Decreased $1,899,000
↓ $100K (5%)
Price Decreased
Apr 28, 2026 Listed by KW Advisors East Bay $1,999,000
Listed by KW Advisors East Bay

Property Highlights

Garage
Air Conditioning
Fireplace

Building Info

Overview

    General

  • Year Built: 1999
  • Effective Year Built: 1999
  • Building Count: 1
  • Total Rooms: 9
  • Bedroom Count: 3
  • Bathroom Count: 4
  • Full Bathrooms: 3
  • Partial Bathrooms: 4
  • Building Condition: 0
  • Building Quality: 4
  • Construction Type: 17
  • Building Style: 58
  • Exterior Walls Type: 0
  • Interior Walls Type: 0
  • Roof Shape Type: 0
  • Roof Cover Type: 0
  • Floor Count: 150
  • Living Units: 1
  • Floor Cover: 0
  • Basement Type: 0
  • Basement Area: 0
  • Garage Type: 7
  • Parking Space Count: 2
  • Patio Type: 0
  • Porch Type: 0
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 7,455
  • Total Building Area: 3,400
  • Building Area: 3,400
  • Building Area Measurement: L

    Heating and Cooling

  • Air Conditioning: 0
  • Heating: 0
  • Heated Square Feet: 3,400
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: R
  • Subdivision: PARCEL MAP 5534
  • Land Acres: 0000000171
  • Standard Land Use Code: 1001
  • County Land Use Code: 1100
  • Legal Description 1: LOT: 00004 BLK: PM: 0187 PAGE: 0070

Neighborhood

  • School District Name: Castro Valley Unified School District
  • Census Tract: 430200

Geography

  • Assessors Map Reference: 29-A7
  • Parcel: 84C-860-25
  • Lot: 2
  • Municipality: CASTRO VALLEY UNIFIED
  • Latitude: 37.713
  • Longitude: -122.067

    Address

  • Full Address: 18100 De Souza Pl
  • Address - House Number: 18100
  • Address - Street Name: De Souza
  • Address - Suffix Type: Pl
  • State: CA
  • City Name: Castro Valley
  • Carrier Code: C030
  • 4-Digit Zip Code: 2458
  • Zip Code: 94546

Valuation

    Tax

  • Tax Year: 2022
  • Tax Amount: $1,003,676
  • Tax Rate Code Area: 54-003

    Appraisal Valuation

  • Standard Deviation: 0.2046
  • Valuation Date: Feb 14, 2024
  • Confidence Score: 72
  • Final Value: 1,666,247
  • High Value: 2,007,258
  • Low Value: 1,325,237

    Assessments Valuation

  • Assessed Year: 2022
  • Assessed Total Value: $779,163
  • Assessed Land Value: $233,749
  • Assessed Improvements Value: $545,414

    Sales

  • Current Sale Contract Date: Jul 07, 1999
  • Current Sale Recording Date: Jul 09, 1999
  • Current Sale Price:
  • Current Sale Document Type: 36
  • Current Sale Input Document Number: 99252994

    Financing

  • First Mortgage Financing Type: FIX
Data used for valuation calculations is provided by RealtyHop, and other third party sources

Comparables

Unit
Status
Type
Beds
Baths
ft²
Price/ft²
Asking Price
Listed On
Closing Price
Sold On
HOA + Taxes

About Castro Valley


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Frequently Asked Questions

When was property at 18100 De Souza Place built and last sold?
The property at 18100 De Souza Place was built in 1999 and last sold on Jul 7, 1999 for $535,000.
How much is this home worth?
The estimated value of the home located at 18100 De Souza Place is $1,926,932.
What are some comparable homes to 18100 De Souza Place?
There are currently no comparable homes to 18100 De Souza Place.