Save
Ask
Tour
Hide
Share
$3,850,000
New Listing

255 W 21st Street
Upland, CA 91784

For Sale|Single Family Residence|Active
4
Beds
6
Total Baths
4
Full Baths
2
Partial Baths
7,459
SqFt
$516
/SqFt
2023
Built
County:
San Bernardino
Listed by Donald Mowery of EXP REALTY OF CALIFORNIA INC [email protected]
255 W 21st Street255 W 21st Street255 W 21st Street255 W 21st Street
Save
Ask
Tour
Hide
Share

Mortgage Calculator

Monthly Payment (Est.)

Enter an interest rate to see your estimated monthly payment.
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

A RARE OPPORTUNITY. AN EXTRAORDINARY ESTATE. THE FREEDOM TO BRING IT TO LIFE. Imagine owning nearly three acres in prestigious North Upland, nestled against the breathtaking San Gabriel Mountains, with the opportunity to create the luxury estate of your dreams! Situated on approximately 2.8 usable acres, this remarkable property offers exceptional privacy, architectural scale, and endless possibilities. The approximately 7,500-square-foot single-story residence features 4 bedrooms, 4 full bathrooms, 2 half bathrooms, soaring 14-foot ceilings, impressive 9.3-foot doors, and an oversized attached 3-car garage. Grand living spaces include a formal living room with fireplace, formal dining room, bar and wine room, spacious kitchen with breakfast area and pantry, and family room with fireplace. The private east wing features an executive office and expansive primary suite with fireplace, en suite bathroom, walk-in shower, soaking tub, dual walk-in closets, and private patio access. The west wing offers three spacious bedrooms, each with its own bathroom and walk-in closet. A separate structure includes an approximately 800-square-foot casita/guest unit with living area, kitchenette, bedroom, and bathroom; an additional 2-car garage; and an impressive 60-foot-deep RV garage with hookups. An approximately 1,350-square-foot upstairs loft offers incredible potential for a private theater, fitness studio, executive offices, or entertainment lounge. Additional features include remote-start fireplaces, fire sprinklers, a fire hydrant, insulated and sheathed walls, and eight redwood pine trees. The expansive grounds provide an extraordinary canvas for a resort-style pool and spa, outdoor entertaining, gardens, and beautifully landscaped grounds. The true luxury is the freedom to make it your own. With nearly 10,000 square feet of combined living and versatile space, much of the foundation for an extraordinary estate is already in place. Complete the residence with your preferred finishes and create a one-of-a-kind sanctuary designed around your lifestyle.

Save
Ask
Tour
Hide
Share
Listing Snapshot
Price 
$3,850,000
Days On Site 
0 Days
Bedrooms 
4
Inside Area (SqFt) 
7,459 sqft
Total Baths 
6
Full Baths 
4
Partial Baths 
2
Lot Size 
2.7213 Acres
Year Built 
2023
MLS Number 
CV26232076
Status 
Active
Property Tax 
N/A
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
Public Records
Friends & Family
Recent Activity
18 hours agoListing first seen on site
18 hours agoListing updated with changes from the MLS
General Features
Acres 
2.7213
Attached Garage 
Yes
Direction Faces 
South
Foundation 
Slab
Garage 
Yes
Garage Spaces 
3
Land Lease 
No
Levels 
One
Number Of Stories 
1
Parking 
AttachedConcreteDirect AccessDrivewayGarageRV GarageGarage Faces Side
Parking Spaces 
13
Property Sub Type 
Single Family Residence
Security 
Carbon Monoxide Detector(s)Fire Sprinkler SystemSmoke Detector(s)
Sewer 
Public Sewer
Special Circumstances 
Standard
Style 
Mediterranean
Utilities 
Cable AvailableElectricity ConnectedNatural Gas AvailablePhone AvailableSewer ConnectedWater Connected
Water Source 
Private
Zoning 
RS-20
Interior Features
Appliances 
DishwasherDisposal
Cooling 
Central AirElectric
Fireplace 
Yes
Fireplace Features 
Living Room
Flooring 
CarpetConcreteLaminate
Heating 
CentralForced AirNatural Gas
Interior 
Breakfast BarBuilt-in FeaturesGranite CountersHigh CeilingsPantryRecessed LightingEntrance FoyerWalk-In Closet(s)
Laundry Features 
Washer HookupGas Dryer HookupInsideLaundry Room
Main Level Bedrooms 
5
Window Features 
Screens
Bathroom 
Features - Granite Counters
Bonus Room 
Dining Room 
EntryFoyer 
Family Room 
Foyer 
Kitchen 
Features - Granite Counters
Laundry 
Master Bedroom 
Office 
Other 
Features - Walk-In Closet(s)
Pantry 
Save
Ask
Tour
Hide
Share
Exterior Features
Construction Details 
Cement SidingFrameGlassConcrete
Other Structures 
Second GarageCorral(s)
Patio And Porch 
CoveredFront Porch
Pool Features 
None
Road Frontage 
City Street
Roof 
Spanish Tile
Spa Features 
None
View 
Mountain(s)Neighborhood
Waterview 
Mountain(s)Neighborhood
Windows/Doors 
Screens
Community Features
Community Features 
CurbsStreet LightsSuburbanSidewalks
MLS Area 
690 - Upland
School District 
Upland
Financing Terms Available 
CashConventionalSubmit1031 Exchange
Building Access 
1
Roads 
Paved
Schools
School District
Upland
Elementary School
Valencia
Middle School
Unknown
High School
Upland


This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. The display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, the Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.

Neighborhood & Commute
Source: Walkscore
Save
Ask
Tour
Hide
Share