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Listed by: Donald Mowery (909) 981-6677 DRE #01193547 | EXP REALTY OF CALIFORNIA INC (888) 584-9427
$3,850,000
Monthly Est:$19,163
4 Beds
- 6 Baths
4 full baths + 2 half baths
7,459sqft
255 W 21st Street, Upland, CA 91784
$3,850,000
$19,163/moEst:
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Single Family Residence
Built in 2023
$-- HOA
2.72 acres lot
$516/sq.ft
Description
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.
- Houzeo last checked: 10 minutes ago
- Listing updated: October 30, 2026 at 2:12 am
- Source: California Regional MLS-CA | MLS#: CV26232076

Property Details
Status
Active
Type
Single Family Residence
No. of Stories
1
County
City
Neighborhood
--
Year Built
2023
HOA Fees
-
Finished Area
7,459 sqft
Lot Size
2.72 acres lot
Basement Area
- sqft
MLS Name
California Regional MLS
MLS Number
CV26232076
MLS Status
Active
Days on Market
1
Cumulative Days on Market
1

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Location
Facts & Features
Rooms
Bedrooms & bathrooms
Bedrooms: 4
Bathrooms: 6
Interior
Appliances
Dishwasher, Disposal
Window Features
Atrium, Screens
Interior Features
Breakfast Bar, Built In Features, Breakfast Area, Separate Formal Dining Room, Granite Counters, High Ceilings, Pantry, Recessed Lighting, Entrance Foyer, Primary Suite, Walk In Pantry, Walk In Closets
Cooling
Central Air, Electric
Heating
Central, Forced Air, Natural Gas
Flooring
Carpet, Concrete, Laminate
Sewer
Public Sewer
Construction
Year Built
Year Built: 2023
Home type
Single Family Residence
Architectural Style
Mediterranean
Construction Materials
Cement Siding, Drywall, Frame, Glass, Concrete
Foundation Details
Slab
Roof
Spanish Tile
Utilities & Energy
Water Source
Private
Security Features
Carbon Monoxide Detectors, Fire Sprinkler System, Smoke Detectors
Parking Features
Concrete, Direct Access, Driveway, Garage, Rv Garage, Rv Hook Ups, Garage Faces Side
Pool Features
None
Laundry Features
Washer Hookup, Gas Dryer Hookup, Inside, Laundry Room
Electric
Electricity On Property, Standard
Utilities
Cable Available, Electricity Connected, Natural Gas Available, Phone Available, Sewer Connected, Water Connected
Fireplace Features
Bonus Room, Living Room
Other Features
Lot Features
Lot Over40000sqft, No Landscaping
Patio And Porch Features
Concrete, Covered, Front Porch
Community Features
Curbs, Gutters, Mountainous, Street Lights, Suburban, Sidewalks
Price History
| Date | Event | Price |
|---|---|---|
10/28/2026 Source: | Listed for Sale | $3,850,000 $516/sqft |
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Based on information from California Regional Multiple Listing Service, Inc. as of Oct 30, 2026, 09:30AM and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Information being provided is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. This website may not include listings or property addresses of sellers who have directed their listing brokers to withhold their listing or their property address from display on the Internet. © 2026 California Regional Multiple Listing Service. All Rights Reserved.
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