$1,404,000
- 5 Beds
- 3 Baths
- 2,407 sqft (on 0.39 acres)
4448 Gem Ave, Castro Valley, CA 94546
Est. Refi. Payment $8,668/mo*
Refinance Your HomeCurrently Off Market - Sold May 23, 2024 for $1,300,000
Home Value
Trulia Estimate
$1.4MSince last month
Decreased$55K (-3.7%)Since last year
Increased$180K (+14.7%)Since last sale
Increased$104K (+8%)Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.
Trulia Estimate
The of this home's value increased by +219% in the last 10 years
| Month | Estimated value |
|---|---|
2026 | |
| August 2026 | $1.4M |
| August 2026 | $1.4M |
| July 2026 | $1.46M |
| June 2026 | $1.49M |
| May 2026 | $1.53M |
| April 2026 | $1.53M |
| March 2026 | $1.52M |
| February 2026 | $1.5M |
| January 2026 | $1.39M |
2025 | |
2024 | |
2023 | |
2022 | |
2021 | |
2020 | |
2019 | |
2018 | |
2017 | |
2016 | |
Comparable sales
These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.21 | Single-Family Home | $1,350,000 | 07/30/26 | 4 | 3 | 2,645 | |
0.12 | Single-Family Home | $1,700,000 | 03/03/26 | 5 | 4 | 2,526 | |
0.35 | Single-Family Home | $1,365,000 | 09/12/25 | 5 | 4 | 2,855 | |
0.18 | Single-Family Home | $1,265,500 | 07/10/26 | 3 | 2 | 2,164 | |
0.33 | Single-Family Home | $1,950,000 | 07/13/26 | 5 | 3 | 2,955 | |
0.24 | Single-Family Home | $1,410,000 | 07/27/26 | 4 | 3 | 1,888 | |
0.19 | Single-Family Home | $2,088,000 | 01/09/26 | 5 | 5 | 3,226 | |
0.21 | Single-Family Home | $2,600,000 | 09/11/25 | 4 | 5 | 3,489 | |
0.54 | Single-Family Home | $1,350,000 | 06/25/26 | 4 | 2.5 | 1,691 | |
0.24 | Single-Family Home | $1,698,000 | 05/08/26 | 6 | 5 | 2,522 |
Nearby home prices
Get a sense of expected prices in the area by checking the value of nearby homes.Address | Distance | Price | Bed | Bath | Sqft | Status |
|---|---|---|---|---|---|---|
0.01 | $1,250,400 | 3 | 2 | 1,920 | Off Market | |
0.01 | $898,200 | 3 | 1 | 1,151 | Off Market | |
0.03 | $887,000 | 3 | 1 | 1,060 | Off Market | |
0.03 | $910,700 | 3 | 1 | 1,071 | Off Market | |
0.12 | $1,864,000 | 3 | 2 | 2,415 | Off Market | |
0.10 | $935,800 | 3 | 2 | 1,269 | Off Market | |
0.10 | $1,117,000 | 4 | 2 | 1,269 | Off Market | |
0.12 | $1,700,000 | 5 | 3 | 2,526 | Recently Sold | |
0.12 | $925,000 | 3 | 1 | 1,468 | Recently Sold | |
0.12 | $982,000 | 3 | 2 | 1,596 | Recently Sold | |
0.18 | $1,265,500 | 3 | 2 | 2,164 | Recently Sold |
Local Information
-- mins to
Home Highlights
Single-Family Home
Built in 1950
0.39 acre lot
2,407 sqft
$583/sqft
Garage
About this House
Nestled in the heart of Castro Valley, 4448 Gem shines as the crown jewel of the neighborhood! With approximately 1964 square feet, the main house features 4 bedrooms & 2 full bathrooms. The upper level hosts 3 of the bedrooms, 1 bathroom, living room, kitchen, & dining area. The lower level has many possibilities & can function as a 4th bedroom, in-law unit, or rental unit as it has a bedroom area, living space, full bathroom, second kitchen, walk-in closet, & separate entrance. There is ALSO an attached 443 sq ft studio unit that is fully separated from the main house and it offers a bedroom area, kitchen & full bath that can be used as a rental unit, or for one's own uses such as an art studio or home office! Updates include luxury vinyl floors, fresh paint, renovated kitchen & baths, new lighting, dual pane windows, fences, & driveway. The 17,000 sq ft lot boasts park-like grounds & borders tranquil crow creek. It offers a shed, planter boxes, & a large deck. A new driveway provides side access & boat/RV parking. Prime CV location with one block to Creekside Middle School, & walking distance to Earl Warren Park! Enjoy the shops, services, & restaurants of Castro Village and the new Castro Valley Marketplace. Close to CV Bart & major highways! 3d tour: www.4448Gem.com/?mls
4448 Gem Ave, Castro Valley, CA 94546 is a 5 bedroom, 3 bathroom, 2,407 sqft single-family home built in 1950. It last sold for $1,300,000 on May 23, 2024 (7% below the $1,395,000 asking price). This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $1,404,000, with a rent estimate of $4,831/month.
Last check for updates: about 7 hours ago
Listed by Julienne Courtney DRE #01376948, (925) 989-1669
Berkshire Hathaway Home Services
Bought with: Sonali Sethna DRE #01194792, (925) 525-2569, Compass
Source: Bay East AOR, MLS#41057504

Home Details for 4448 Gem Ave
|
|---|
Interior Details Number of Rooms: 8Types of Rooms: Kitchen |
Beds & Baths Number of Bedrooms: 5Number of Bathrooms: 3Number of Bathrooms (full): 3 |
Dimensions and Layout Living Area: 2407 Square Feet |
Appliances & Utilities Appliances: Dishwasher, Refrigerator, Dryer, Washer, Tankless Water HeaterDishwasherDryerLaundry: Cabinets,SinkRefrigeratorWasher |
Heating & Cooling Heating: Natural GasNo CoolingAir Conditioning: NoneHas HeatingHeating Fuel: Natural Gas |
Fireplace & Spa Number of Fireplaces: 1Fireplace: Living Room, Wood BurningHas a Fireplace |
Gas & Electric Electric: Photovoltaics Third-Party Owned |
Windows, Doors, Floors & Walls Flooring: Vinyl, Carpet |
Levels, Entrance, & Accessibility Stories: 2Levels: TwoFloors: Vinyl, Carpet |
Security Security: Carbon Monoxide Detector(s) |
|
|---|
Exterior Home Features Roof: CompositionPatio / Porch: Deck, Front PorchFencing: Partial Fence, FencedExterior: Garden, Garden/PlayGardenNo Private Pool |
Parking & Garage Number of Garage Spaces: 2Number of Covered Spaces: 2No CarportHas a GarageNo Attached GarageParking Spaces: 2Parking: RV/Boat Parking,Side Yard Access |
Pool Pool: None |
Frontage WaterfrontWaterfront: CreekOn Waterfront |
|
|---|
Year Built Year Built: 1950 |
Property Type / Style Property Type: ResidentialProperty Subtype: Residential, Single Family ResidenceStructure Type: AttachedArchitecture: Traditional |
Building Construction Materials: StuccoNot a New ConstructionAttached To Another Structure |
Property Information Condition: ExistingParcel Number: 84C106328 |
|
|---|
Price List Price: $1,395,000Price Range: $1,300,000 - $1,395,000 |
Status Change & Dates Off Market Date: Tue May 07 2024Possession Timing: Close Of Escrow |
|
|---|
MLS Status: Sold |
|
|---|
Direction & Address City: Castro ValleyCommunity: Castro Valley |
|
|---|
Building Area Building Area: 2407 Square Feet |
|
|---|
No HOA |
|
|---|
Lot Area: 0.39 acres |
|
|---|
Special Conditions: Standard |
|
|---|
Listing Agreement Type: Excl RightListing Terms: Cash, Contract |
|
|---|
Mobile Home Park Mobile Home Units: Feet |
|
|---|
Mls Number: 41057504Above Grade Unfinished Area Units: Square FeetBelow Grade Unfinished Area Units: Square Feet |
Price and Tax history
| Date | Event | Price |
|---|---|---|
May 23, 2024 Source: Bay East AOR #41057504 | Sold | $1,300,000 |
May 8, 2024 Source: bridgeMLS/CCAR/Bay East AOR #41057504 | Pending | $1,395,000 |
Apr 26, 2024 Source: bridgeMLS/CCAR/Bay East AOR #41057504 | Listed For Sale | $1,395,000 |
Mar 17, 2015 Source: N/A | Sold | $395,000 |
Nov 10, 2011 Source: Bay East AOR #40524459 | Sold | $392,500 |
Jul 22, 2011 Source: Agent Provided | PriceChange | $449,000 Price decreased by 5% |
Jun 12, 2011 Source: Agent Provided | PriceChange | $475,000 Price decreased by 5% |
May 16, 2011 Source: Agent Provided | Listed For Sale | $499,000 |
Mar 7, 2007 Source: N/A | Sold | $809,000 |
Oct 21, 2004 Source: Bay East AOR #40038508 | Sold | $587,000 |
Feb 23, 1999 Source: N/A | Sold | $247,500 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2026 | Unavailable | $907,876 |
Home facts updated by county records
Market trends in Castro Valley
Last updated July 2026
Avg. sale price
$1.21M
$21.33KMoM
Sale-to-List Price
103.6%
0.8%MoM
Price per sq ft
$702
$22MoM
Available listings
84
6MoM
Around this home
What Locals Say about Castro Valley
At least 380 Trulia users voted on each feature.
89 % Say it's dog friendly
81 % Say there are sidewalks
75 % Say car is needed
74 % Say parking is easy
73 % Say there's holiday spirit
71 % Say yards are well-kept
65 % Say it's quiet
65 % Say people would walk alone at night
65 % Say it's walkable to grocery stores
62 % Say it's walkable to restaurants
59 % Say there's wildlife
59 % Say they plan to stay for at least 5 years
59 % Say kids play outside
57 % Say neighbors are friendly
57 % Say streets are well-lit
35 % Say there are community events
Sourced by Trulia users. Learn more about our methodology.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections

Bay Eastยฉ 2026, CCARยฉ 2026, bridgeMLSยฉ 2026. 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 or any purpose other than to identify prospective properties consumers may be
interested in purchasing. Data last updated at 2026-09-05 15:01:11 PDT.
Frequently asked questions about 4448 Gem Ave
- What is 4448 Gem Ave estimated to be worth?Trulia's estimated value for 4448 Gem Ave in Castro Valley, CA is $1,404,000.
- What is the price history for 4448 Gem Ave?4448 Gem Ave in Castro Valley, CA last sold for $1,300,000 in May 2024.
- Is Castro Valley a buyer's or seller's market?Castro Valley is currently a seller's market, based on recent for-sale activity.
- What's the median sale price in Castro Valley?The median sale price in Castro Valley is $1.21M. That is down $21.33K from the prior month.
- Does 4448 Gem Ave have laundry facilities?Yes, 4448 Gem Ave in Castro Valley, CA has in-unit laundry.
- Does 4448 Gem Ave have a yard?Yes, 4448 Gem Ave in Castro Valley, CA has a yard.