NOT LISTED FOR SALE

4207 Gem Ave Castro Valley, CA 94546

Castro Valley East Neighborhood

Estimated Value: $807,000 - $955,000

3 Beds
1 Bath
1,216 Sq Ft
$736/Sq Ft Est. Value

About This Home

This home is located at 4207 Gem Ave, Castro Valley, CA 94546 and is currently estimated at $895,577, approximately $736 per square foot. 4207 Gem Ave is a home located in Alameda County with nearby schools including Marshall Elementary School, Creekside Middle School, and Canyon Middle School.

Ownership History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Name Owned For Owner Type

Purchase Details

Closed on
Dec 31, 2025
Sold by
Bought by
Current Estimated Value
$895,577

Purchase Details

Closed on
Oct 1, 2025
Sold by
Bought by

Home Financials for this Owner

Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$216,000
Interest Rate
6.56%
Mortgage Type
New Conventional

Purchase Details

Closed on
Feb 27, 2024
Sold by
Bought by
Source: Public Records

Range of Values:

--
Value Increase
--
Percent Increase
--
Adjusted for Inflation
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

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Buyer Sale Price Title Company
-- None Listed On Document
$144,000 Fidelity National Title Compan
-- None Listed On Document
-- None Listed On Document
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Borrower Loan Amount
Previous Owner $216,000
Source: Public Records

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

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 $4,279 $298,110 $91,533 $213,577
2024 $4,279 $292,127 $89,738 $209,389
2023 $4,194 $286,263 $87,979 $205,284
2022 $4,099 $280,513 $86,254 $201,259
2021 $3,988 $274,875 $84,562 $197,313
2020 $3,895 $278,985 $83,695 $195,290
2019 $3,957 $273,515 $82,054 $191,461
2018 $3,842 $268,153 $80,446 $187,707
2017 $3,739 $262,895 $78,868 $184,027
2016 $3,556 $257,742 $77,322 $180,420
2015 $3,324 $253,872 $76,161 $177,711
2014 $3,266 $248,900 $74,670 $174,230
Source: Public Records

Map

California Alameda County Castro Valley 94546 Castro Valley East

4207 Gem Ave, Castro Valley, CA

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.

Nearby Homes
Your Personal Tour Guide

Ask me questions while you tour the home.