6378 East AV Rancho Cucamonga CA 91739 MLS #CV26170531

6378 East AV
Rancho Cucamonga, CA, 91739
$1,349,900
5 Beds
4 Baths
3,275 SqFt
0.48 Acres
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MLS #CV26170531 image #0
Rare North Rancho Cucamonga Property with Three Separate Living Spaces on Nearly Half an Acre
Some homes offer more space. This one offers more possibilities.

Situated on an expansive 20,757-square-foot lot (nearly half an acre) in highly sought-after North Rancho Cucamonga, this exceptional property offers a rare combination of flexibility, privacy, and functionality that’s becoming increasingly difficult to find.

Whether you’re accommodating aging parents, welcoming adult children back home, creating space for long-term guests, working from home, or simply looking for a property that can adapt to your family’s changing needs, this home offers possibilities that few properties can match.

The Mediterranean-inspired main residence features approximately 1,984 square feet, 3 bedrooms, 2 bathrooms, soaring ceilings, abundant natural light, beautiful views of the San Gabriel Mountains, and an open-concept floor plan. The remodeled kitchen showcases custom wood cabinetry, granite countertops, a large center island, and a premium Viking 6-burner range, creating an ideal space for everyday living and entertaining.

At the heart of the property is a private courtyard featuring a rock waterfall spa and BBQ area, providing the perfect setting to relax, entertain, and enjoy Southern California living.

The permitted ADU, built in 2022, offers approximately 809 square feet, 2 bedrooms, 1 bathroom, a full kitchen, living room, private entrance, and a separate electric meter—ideal for extended family, guests, or additional living flexibility.

An additional detached studio with a kitchenette and bathroom provides even more versatility, making it ideal for a home office, creative workspace, guest accommodations, or other potential uses. Beneath the studio is a finished basement storage area with stair access, offering valuable additional space for seasonal storage, tools, collectibles, or even a wine collection an uncommon feature in Southern California.

Additional highlights include an oversized tandem garage with room for up to four vehicles (depending on vehicle size), generous driveway parking, mature landscaping, and convenient access to shopping, dining, parks, and highly rated schools.

Properties offering this level of flexibility rarely become available. Some photos have been virtually staged for illustrative purposes.

Property Details

Price:
$1,349,900
MLS #:
CV26170531
Status:
Active
Beds:
5
Baths:
4
Type:
Single Family
Subtype:
Single Family Residence
Neighborhood:
688ranchocucamonga
Listed Date:
Aug 5, 2026
Finished Sq Ft:
3,275
Lot Size:
20,757 sqft / 0.48 acres (approx)
Year Built:
1965
Contemporary, Mediterranean688 – Rancho Cucamonga688ranchocucamongaChaffey Joint Union HighMountain(s)

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Schools

School District:
Chaffey Joint Union High

Interior

Appliances
DW, GD, GO, GR, _6BS, DO, HOD
Bathrooms
4 Full Bathrooms
Cooling
CA
Flooring
TILE, LAM, CARP
Heating
CF
Interior Features
CF, WB, RECL, STNC, OFP, HCEL
Laundry Features
IN
Levels
A
Main Level Bathrooms
4
Main Level Bedrooms
5

Exterior

Accessibility Features
_2AE
Architectural Style
CNT, MED
Attached Garage YN
1
Common Walls
NCW
Community Features
FHL, HRS, MTN, HIKI, BIKI
Construction Materials
STC, DWAL
Fencing
BR, VNL
Garage Spaces
4
Other Structures
SBL, GHA
Parking Spots
9
Parking Total
9
Patio And Porch Features
PTO, OPN
Roof
SPT
Security Features
SD, COD
Spa Features
IG
View
CY, MT
Window Features
DPW

Financial

Map

Community

Market Summary

Current real estate data for Single Family in Rancho Cucamonga as of Aug 06, 2026
334
Single Family Listed
67
Avg DOM
339
Avg $ / SqFt
$838,720
Avg List Price

Property Summary

    6378 East AV Rancho Cucamonga CA is a Single Family for sale in Rancho Cucamonga, CA, 91739. It is listed for $1,349,900 and features 5 beds, 4 baths, and has approximately 3,275 square feet of living space, and was originally constructed in 1965. The current price per square foot is $412. The average price per square foot for Single Family listings in Rancho Cucamonga is $339. The average listing price for Single Family in Rancho Cucamonga is $838,720. To schedule a showing of MLS#cv26170531 at 6378 East AV in Rancho Cucamonga, CA, contact your The Knight Group LA agent at 310.409.7242.

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