2499 Sierra, Upland, CA 91784

• 4 beds |
• 6 baths |
• 5,200 sqft

Property Description

Custom-built single-story residence situated within a private gated setting in San Antonio Heights, positioned to capture sweeping valley and mountain views. This 5,200 sq ft, home features 4 ensuite bedrooms and 6 bathrooms, designed with a strong emphasis on scale, flow, and privacy. The residence showcases refined Mediterranean-inspired architecture paired with a sophisticated, modern interior. A striking entry with oversized double doors opens to expansive ceiling heights, arched windows, and a light-filled open floor plan. Elevated positioning enhances the sense of privacy while providing unobstructed views rarely found in single-level estates. Formal living and dining rooms provide elegant yet functional spaces for entertaining, while the central living area is designed for seamless indoor-outdoor living. The kitchen features Thermador professional appliances, extensive counter space, custom cabinetry, and a large breakfast bar, opening to a grand great room with fireplace. Retractable glass doors lead to approximately 1,730 sq ft of covered outdoor living, including a spacious loggia overlooking the pool, putting green, and expansive valley backdrop. The primary suite offers a serene retreat with panoramic views, fireplace, generous walk-in closet, and a spa-like bath featuring dual vanities, a freestanding soaking tub, and a separate walk-in shower. One bedroom has been configured as a private studio with kitchenette and bathroom, offering flexibility for guests, multigenerational living, or extended stays. The property also includes whole-house LED lighting, an integrated audio system, security cameras, solar panels, electric vehicle charging, and a gated drive with RV parking. The grounds provide ample space for recreation, entertaining, or pets, all within a secure and private setting. A rare opportunity to own a gated, single-level estate in San Antonio Heights with commanding views, architectural refinement, and modern amenities.

Listing Status:

Active

Date Added:

February 11, 2026

Data Last Updated:

May 20, 2026 at 9:16PM

Listing Office:

Re/Max Freedom : 760-488-6471

Listing Agent:

Diana Herrera : 760-488-6471

MLS ID:

CV26031826

Interior

• General: Breakfast BarBuilt-in FeaturesBrick WallsBlock WallsCeiling Fan(s)Cathedral Ceiling(s)Eat-in KitchenHigh CeilingsOpen FloorplanPantryRecessed LightingAll Bedrooms DownBedroom on Main LevelMain Level PrimaryWalk-In Closet(s)
• Appliances: Double OvenDishwasherDisposalGas RangeRefrigeratorRange HoodWater Heater
• Laundry: InsideLaundry Room
• Flooring: TileVinylWood
• A/C: Central Air
• Heating: CentralFireplace(s)
• Fireplace: Family RoomLiving RoomPrimary BedroomFireplace
• Disability Feature: Parking

Exterior

• General: Private
• Style: MediterraneanModern
• Other Structures: PorchRear PorchConcreteCovered
• Pool: In GroundPrivate
• Parking: Direct AccessDrivewayGarageRV Access/ParkingOne SpaceGarage Faces SideParking spaces: 4

Construction

• Roofing: Concrete
• Windows: Double Pane Windows
• General: FrameStucco1Slab

Location

• Road/Access: Paved
• HOA Amenities: 0.0
• Originating MLS: CRMLS_CRM
• School District: Upland
• County: San Bernardino

Lot

• Zoning: 1003321540000
• View: City LightsHillsMountain(s)NeighborhoodValleyView
• Fencing: BlockBrickElectricNew Condition

Utilities

• Utilities: Cable AvailableElectricity AvailableNatural Gas AvailablePhone AvailableWater Available
• Water: Private
• Sewer: Septic Type Unknown

Financial

• Source: CRMLS_CRM