Phone858-220-9001
Login or sign up for new accountLogin / Register
Email MeEmail Me
  • Search Listings
    • Residential
    • Lease
  • Previous Sales
  •   Buyers
    • Renting vs. buying
    • How much can I afford?
    • Why work with a real estate agent
    • Finding your home
    • What do you want in a home?
    • Submitting an offer
    • After the offer is accepted
    • Moving
  •     Sellers
    • Why work with a real estate agent
    • Getting your home ready for sale
    • Pricing your home to sell
    • Negotiating the sale
    • Transaction management
    • Moving
  •     Services
    • Onepoint
    • Home Financing
    • Insurance
    • Escrow
    • Title
    • Home Warranty
    • PRESALE/STAGING
    • Relocation
  •     About
    • Leadership Team
    • About Us
    • Globally Respected
    • The Charitable Foundation
    • Diversity & Inclusion
    • Doyle
    • Agents Only
Menu
Berkshire Hathaway HomeServices California Properties Berkshire Hathaway HomeServices California Properties
Any Price
-
  • 0
  • $100,000+
  • $250,000+
  • $500,000+
  • $750,000+
  • $1,000,000+
0+ Beds
  • 0+
  • 1+
  • 2+
  • 3+
  • 4+
  • 5+
0+ Baths
  • 0+
  • 1+
  • 2+
  • 3+
  • 4+
  • 5+
Property Type
Other
  • Home
  • 4247 Gem Ave

4247 Gem Ave, Castro Valley, CA 94546

$999,000 Approx. USD 3 beds, 3 baths
1,737 sqft

  VIRTUAL TOUR New Listing
Save My Notes
Share
  • Copy Link
  • Facebook
  • Twitter
  • Pinterest
Source MLS Verified
MORE INFO
BrochureBrochure Virtual Tour

Photo of Patrick Ahern

Patrick Ahern REALTOR® - Sales Associate 858-220-9001 m
858-459-0501 o
Lic#: 00610408
NRDS ID: 196548265
aherngroup@gmail.com Text Me
Call My Cell
Call My Office
Lic#: 00610408
NRDS ID: 196548265
aherngroup@gmail.com La Jolla Prospect Office
1299 Prospect St, Ste. 100-101, 200-203 & 301-302
La Jolla, CA 92037
Phone: 858-459-0501
Fax: 858-459-3275
 La Jolla Prospect 1299 Prospect St, Ste. 100-101, 200-203 & 301-302
La Jolla, CA 92037
Call Branch Office
Fax: 858-459-3275
Mortgage Calculator
GET PRE-APPROVED
Interested in This Property? Your message will be sent to Patrick.
By submitting your information, you consent to be contacted by email, SMS message, and/or phone call. You may opt out at any time per our Privacy Policy.
  • Save
  • My Notes

Listing Agent


Kristen Bleth | kristen@evolvereca.com
Lic#: 02058725
Broker: Courtesy of Evolve Real Estate
Phone: 510-408-8161

Co Listing Agent


Sunday Nguyen | realtor@sundayestate.com
Lic#: 02206061
Broker: Courtesy of eXp Realty of California
Phone: 510-999-6663

Agent Remarks

Welcome to 4247 Gem Avenue, a beautifully renovated single-story home in the heart of Castro Valley! Thoughtfully transformed with quality craftsmanship, modern finishes, and extensive upgrades completed with permits. The stunning kitchen features stainless steel appliances, custom cabinetry, a spacious island, and a pot filler. Beautifully designed bathrooms offer walk-in showers, rainfall showerheads, and modern fixtures. Major improvements include new electrical wiring with a 200-amp panel, updated plumbing and drainage, a new HVAC furnace and ductwork, and a new composition roof. Additional highlights include waterproof plank flooring, designer lighting, an EV-ready garage, and refreshed landscaping. Conveniently located near Castro Valley’s highly regarded schools, shopping, dining, and commuter routes. Move-in ready with the peace of mind of permitted improvements!

Listing Details

Property type: Single Family Residence (Single Family)
Status: Active
MLS# 41151756
Price: $999,000
Beds: 3
Baths: 3 (3 full)
Living Room fireplaces
Built in 1947
1,737 sqft
1 story
0.13 acres
Lot size: 0.1326
Subdivision: CASTRO VALLEY
County: Alameda
Property style: Ranch
Construction: Stucco
Interior features: Breakfast Bar
Parking description: Garage
Lot description: Back Yard,Front Yard,Garden,Street Level
Heating/cooling: None

Last Updated: 10/21/2026

 Days On Market (DOM): 6

 Find more Castro Valley homes and real estate

 Find more homes in 94546 zip code

 Find more homes in the CASTRO VALLEY subdivision

The style of this listing is Ranch.
Find more Ranch style homes for sale

Lat/Long: 37.698104, -122.063994.
Find nearby listings

DISCLAIMER: There is NO WARRANTY, expressed or implied, for the accuracy of this information or its applicability to your financial situation. Please consult your financial and/or tax advisor. GET PRE-APPROVED The loan's interest rate will depend upon the specific characteristics of the loan transaction and credit profile up to the time of closing.

94546 Area Map

Demographics

Schools

CLICK TO VIEW MAP

Similar Listings

Next Listing
4884 Larimer Way VIRTUAL TOUR
4884 Larimer Way ,
$1,088,888 Approx. USD 3 beds, 2 baths

List Date: 9/17/2026
 Status: Pending
 MLS #: 41148525

My Notes Save
Listing courtesy of
3905 Nichandros St VIRTUAL TOUR
3905 Nichandros St ,
$975,000 Approx. USD 3 beds, 4 baths

List Date: 10/24/2026
 Status: Active
 MLS #: 41152232

My Notes Save
Listing courtesy of
21297 Justco Ln VIRTUAL TOUR
21297 Justco Ln ,
$1,098,000 Approx. USD 4 beds, 3 baths

List Date: 9/23/2026
 Status: Pending
 MLS #: 41149183

My Notes Save
Listing courtesy of
22372 Ralston Court VIRTUAL TOUR
22372 Ralston Court ,
$849,500 Approx. USD 3 beds, 2 baths

List Date: 10/15/2026
 Status: Active
 MLS #: ML82064671

My Notes Save
Listing courtesy of
2591 Jacobs Street VIRTUAL TOUR
2591 Jacobs Street ,
$1,049,000 Approx. USD 4 beds, 3 baths

List Date: 9/8/2026
 Status: Active Under Contract
 MLS #: ML82060326

My Notes Save
Listing courtesy of
19656 San Miguel Ave VIRTUAL TOUR
19656 San Miguel Ave ,
$878,000 Approx. USD 3 beds, 1 baths

List Date: 9/10/2026
 Status: Pending
 MLS #: 41147504

My Notes Save
Listing courtesy of
2241 Kelly St VIRTUAL TOUR
2241 Kelly St ,
$1,100,000 Approx. USD 4 beds, 3 baths

List Date: 8/18/2026
 Status: Pending
 MLS #: 41144992

My Notes Save
Listing courtesy of
3005 Pickford Way VIRTUAL TOUR
3005 Pickford Way ,
$999,000 Approx. USD 3 beds, 2 baths

List Date: 10/21/2026
 Status: Active
 MLS #: ML82065312

My Notes Save
Listing courtesy of
23661 Glenbrook Lane VIRTUAL TOUR
23661 Glenbrook Lane ,
$1,099,999 Approx. USD 3 beds, 3 baths

List Date: 7/13/2026
 Status: Active
 MLS #: 41141539

My Notes Save
Listing courtesy of
23070 Glenn Ellen VIRTUAL TOUR
23070 Glenn Ellen ,
$998,000 Approx. USD 3 beds, 3 baths

List Date: 10/1/2026
 Status: Active
 MLS #: 41150093

My Notes Save
Listing courtesy of
Previous Listing
  • Search
    • My Previous Sales
    • Residential
    • Lease
    • Open Houses
    • Commercial
    • New Homes
    • Luxury
  • Buyers
    • Renting vs. buying
    • How much can I afford?
    • Why work with a real estate agent
    • Finding your home
    • What do you want in a home?
    • Submitting an offer
    • After the offer is accepted
    • Moving
  • Sellers
    • Why work with a real estate agent
    • Getting your home ready for sale
    • Pricing your home to sell
    • Negotiating the sale
    • Transaction management
    • Moving
  • Services
    • Prosperity Home Mortgage
    • HomeServices Relocation
    • HomeServices Insurance Agency
    • Pickford Escrow
    • California Title Company
    • American Home Shield
    • PINNACLE
    • myNHD
  • About
    • Leadership Team
    • About Us
    • Globally Respected
    • The Charitable Foundation
    • Diversity & Inclusion
    • Doyle
    • Agents Only

Photo of Patrick Ahern

Patrick Ahern REALTOR® - Sales Associate 858-220-9001 m
858-459-0501 o
Lic#: 00610408
NRDS ID: 196548265
aherngroup@gmail.com Text Me
Call My Cell
Call My Office
Lic#: 00610408
NRDS ID: 196548265
aherngroup@gmail.com
La Jolla Prospect Office
1299 Prospect St, Ste. 100-101, 200-203 & 301-302
La Jolla, CA 92037
hsoa-logo

© 2026 BHH Affiliates, LLC. An independently operated subsidiary of HomeServices of America, Inc., a Berkshire Hathaway affiliate, and a franchisee of BHH Affiliates, LLC. Berkshire Hathaway HomeServices and the Berkshire Hathaway HomeServices symbol are registered service marks of Columbia Insurance Company, a Berkshire Hathaway affiliate. Equal Housing Opportunity.
Lic#: 01317331

Photo of Equal Housing Opportunity Privacy Policy - California Privacy Notice - Terms of Use - Accessibility
Do Not Sell My Personal Information DMCA.com Protection Status