NOT LISTED FOR SALE

18521 Agate Ct Castro Valley, CA 94546

Castro Valley Hills Neighborhood

Estimated Value: $1,519,000 - $1,586,000

4 Beds
2.5 Baths
2,696 Sq Ft
$579/Sq Ft Est. Value

Last Sold June 18, 2021

Last sale price $1,348,000 $500 Per Sq Ft

Est. 16% increase in value since last sale

Current estimated payment $9,950/month

14 Days on Market

Highlights

  • Contemporary Architecture
  • Living Room with Fireplace
  • Formal Dining Room
  • Proctor Elementary School Rated A
  • No HOA
  • 3 Car Direct Access Garage

About This Home

As of June 2021

Beautiful custom home on a gated street of three custom homes. Located in the Proctor school neighborhood this 4 bedroom, 2.5 baths is move in ready. Very quiet and peaceful setting. The home is full of sunlight, the master bedroom features vaulted ceilings and a beautiful stain glass window, large bath with soaking tub and two huge closets. The kitchen boasts vaulted ceilings with eating area and a sliding glass door to a sun porch. The formal dining room with coffered ceilings leads to the living room with a gas fireplace and vaulted ceilings. Nice trex decks in the backyard out the sliding glass doors from the living room and master suite. A large family room with fireplace and 1/2 bath lead to a oversized three car garage. Also featuring fresh paint, new flooring, inside laundry, dual pane windows, tile roof, tons of storage, and low maintenance yards with new fencing and landscaping.

Last Agent to Sell the Property

Trish Radovich

Coldwell Banker Realty License #00523595 Listed on: 05/13/2021

Coldwell Banker Realty

Last Buyer's Agent

Sam Chiu

License #01056729

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $17,619

Year Built

  • Built in 1990

Lot Details

  • 9,534 Sq Ft Lot
  • Street terminates at a dead end
  • Perimeter Fence
  • Back Yard Fenced

Parking

  • 3 Car Direct Access Garage
  • Front Facing Garage
  • Garage Door Opener

Home Design

  • Contemporary Architecture

Interior Spaces

  • 2-Story Property
  • Fireplace With Gas Starter
  • Double Pane Windows
  • Living Room with Fireplace
  • 2 Fireplaces
  • Formal Dining Room
  • Recreation Room with Fireplace

Kitchen

  • Eat-In Kitchen
  • Built-In Oven
  • Electric Cooktop
  • Microwave
  • Dishwasher
  • Tile Countertops
  • Disposal

Flooring

  • Carpet
  • Linoleum

Bedrooms and Bathrooms

  • 4 Bedrooms

Laundry

  • Laundry closet
  • Dryer
  • Washer

Home Security

  • Security Gate
  • Carbon Monoxide Detectors
  • Fire and Smoke Detector

Utilities

  • No Cooling
  • Forced Air Heating System
  • Heating System Uses Natural Gas
  • Gas Water Heater

Community Details

  • No Home Owners Association
  • Bay East Association
  • Upper Valley Subdivision, Custom Floorplan

Listing and Financial Details

  • Assessor Parcel Number 84D121132

Home Details

Home Type

Single Family

Est. Annual Taxes

$17,619

Year Built

Built in 1990

Lot Details

0

Parking

3

Listing Details

  • Stories: 2
  • Year Built: 1990
  • Property Sub Type: Single Family Residence
  • Prop. Type: Residential
  • Lot Size Acres: 0.21
  • Subdivision Name: UPPER VALLEY
  • Directions: Redwood Rd, Left on 7Hills, Rt on Agate
  • Architectural Style: Contemporary
  • Carport Y N: No
  • Garage Yn: Yes
  • Unit Levels: Two Story
  • New Construction: No
  • ResoPropertyType: Residential
  • Special Features: VirtualTour

Interior Features

  • Flooring: Carpet, Linoleum
  • Appliances: Dishwasher, Electric Range, Disposal, Microwave, Oven, Refrigerator, Dryer, Washer, Gas Water Heater
  • Full Bathrooms: 2
  • Total Bedrooms: 4
  • Door Features: Mirrored Closet Door(s)
  • Fireplace Features: Gas Starter, Living Room, Recreation Room
  • Fireplaces: 2
  • Fireplace: Yes
  • Interior Amenities: Formal Dining Room, Rec/Rumpus Room, Tile Counters, Eat-in Kitchen
  • Window Features: Double Pane Windows
  • Room Kitchen Features: Counter - Tile, Dishwasher, Eat In Kitchen, Electric Range/Cooktop, Garbage Disposal, Microwave, Oven Built-in, Refrigerator

Exterior Features

  • Fencing: Fenced, Back Yard, Perimeter
  • Lot Features: Dead End
  • Pool Features: None
  • Pool Private: No
  • Construction Type: Siding - Other
  • Exterior Features: Backyard, Low Maintenance
  • Property Condition: Existing

Garage/Parking

  • Garage Spaces: 3
  • Attached Garage: Yes
  • Covered Parking Spaces: 3
  • Parking Features: Attached, Int Access From Garage, Garage Faces Front, Garage Door Opener

Utilities

  • Heating: Fireplace(s), Forced Air, Natural Gas
  • Cooling: None
  • Laundry Features: Laundry Closet, Inside
  • Security: Carbon Monoxide Detector(s), Security Gate, Smoke Detector(s)
  • Cooling Y N: No
  • Heating Yn: Yes
  • Electric: No Solar
  • Sewer: Public Sewer
  • Water Source: Public

Condo/Co-op/Association

  • Association Name: BAY EAST
  • Association: No

Schools

  • Senior High School District: Castro Valley (510) 537-3000

Lot Info

  • Lot Size Sq Ft: 9534
  • Parcel Number: 84D121132
  • ResoLotSizeUnits: Acres

Ownership History

Date Name Owned For Owner Type

Purchase Details

Closed on
Dec 20, 2023
Sold by
Zeng Raymond
Bought by
Zeng Living Trust and Zeng
Current Estimated Value
$1,559,667

Purchase Details

Listed on
May 13, 2021
Closed on
Jun 9, 2021
Sold by
Matsumoto Michiko and Steiner Yvonne J
Bought by
Zeng Raymond
Seller's Agent
Trish Radovich
Coldwell Banker Realty
Buyer's Agent
Sam Chiu
List Price
$1,395,000
Sold Price
$1,348,000
Premium/Discount to List
-$47,000
-3.37%

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
3.54%
Original Mortgage
$548,000
Interest Rate
2.9%
Mortgage Type
New Conventional
Source: Public Records

Range of Values:

Collateral Analytics

Collateral Analytics Collateral Analytics AVMs (Automated Valuation Model) employ a number of statistical approaches combined with neighborhood-specific comparable selection guarantees the most up-to-date and precise valuations.

Not Available

Collateral Analytics does not have data for the current month. Please view the chart for historical values.

ICE

ICE Mortgage Technology ICE Mortgage Technology’s AVM (Automated Valuation Model) is a state-of-the-art online residential property valuation tool that provides a quick and accurate estimate of the value of almost any home in the U.S.

Not Available

ICE Mortgage Technology does not have data for the current month. Please view the chart for historical values.

First American

First American First American Data & Analytics’ next-generation AVM combines unrivaled data assets with a blended ensemble of valuation models to produce highly accurate, reliable valuations you can trust.

Not Available

First American does not have data for the current month. Please view the chart for historical values.

Quantarium

Quantarium Quantarium’s valuation service, repeatedly proven the industry’s most accurate and comprehensive, is supercharged with a self-learning and auto-tuning AI engine that continually becomes smarter and more accurate as it processes daily inputs from the industry’s leading RE data lake.

Not Available

Quantarium does not have data for the current month. Please view the chart for historical values.

Average Value
Not Available
List Price
Sold Price
Create a Home Valuation Report for This Property
The Home Valuation Report is an in-depth analysis detailing your home's value as well as a comparison with similar homes in the area

Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Purchase History

Date Buyer Sale Price Title Company
Zeng Living Trust -- None Listed On Document
Zeng Raymond $1,348,000 Old Republic Title Company
Source: Public Records

Mortgage History

Date Status Borrower Loan Amount
Previous Owner Zeng Raymond $548,000
Source: Public Records

Property History

Date Event Price Change Sq Ft Price
02/04/2025 02/04/25 Off Market $1,348,000 -- --
06/18/2021 06/18/21 Sold $1,348,000 -3.4% $500 / Sq Ft
05/27/2021 05/27/21 Pending -- -- --
05/13/2021 05/13/21 For Sale $1,395,000 -- $517 / Sq Ft
Source: Bay East Association of REALTORS®

Tax History Compared to Growth

Source: Public Records

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 $17,619 $1,452,101 $437,730 $1,021,371
2024 $17,619 $1,423,497 $429,149 $1,001,348
2023 $17,361 $1,395,458 $420,737 $981,721
2022 $17,048 $1,367,960 $412,488 $962,472
2021 $7,458 $567,706 $172,462 $402,244
2020 $7,287 $568,815 $170,694 $398,121
2019 $7,417 $557,665 $167,348 $390,317
2018 $7,207 $546,731 $164,067 $382,664
2017 $7,016 $536,012 $160,850 $375,162
2016 $6,676 $525,502 $157,696 $367,806
2015 $6,239 $517,611 $155,328 $362,283
2014 $6,161 $507,474 $152,286 $355,188
Source: Public Records

Agents Affiliated with this Home

  • Trish Radovich

    Seller's Agent in 2021

    Trish Radovich

    Coldwell Banker Realty

    (510) 367-7999

    20 in this area

    58 Total Sales

    Trish Radovich
    Section Image

  • S

    Buyer's Agent in 2021

    Sam Chiu

    (510) 537-9800

    12 in this area

    68 Total Sales

    Sam Chiu
    Section Image
See All Agents

Map

Source: Bay East Association of REALTORS®

MLS Number: 40949778

Bay East Association of REALTORS®

APN: 084D-1211-032-00

California Alameda County Castro Valley 94546 Castro Valley Hills

18521 Agate Ct, Castro Valley, CA

This home is located at 18521 Agate Ct, Castro Valley, CA 94546 since 13 May 2021 and is currently estimated at $1,559,667, approximately $578 per square foot. This property was built in 1990. 18521 Agate Ct is a home located in Alameda County with nearby schools including Proctor Elementary School, Creekside Middle School, and Canyon Middle School.

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

Bay East Association of REALTORS® Bay East ©2025. CCAR ©2025. bridgeMLS ©2025. Information Deemed Reliable But Not Guaranteed. This information is being provided by the Bay East MLS, or CCAR MLS, or bridgeMLS. The listings presented here may or may not be listed by the Broker/Agent operating this website. This information is intended for the personal use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Nearby Homes