For sale Home

Listed Aug 14, 2026

$1,099,900 Est. $7,275/mo

3663 Highway 78

  • 4

    Beds

  • 4

    Baths

  • 3,190

    Sq ft

The story

  • Pool

Boulder Oak Ranch is a private 4+ acre Julian estate, approached through a gated entrance framed by natural-stone pillars and walls and complemented by native landscaping, including manzanita trees. Surrounded by mature oaks and dramatic boulder outcroppings, the property offers a distinctive setting with privacy and room to enjoy the outdoors. The front courtyard is designed for entertaining, featuring artificial turf, flagstone pavers, a BBQ area, and generous space for outdoor gatherings. Inside, a spacious foyer flows into the dramatic great room, highlighted by wood-beam vaulted ceilings, a stacked-stone fireplace, wet bar, and floor-to-ceiling windows that fill the space with natural light while framing elevated views. The open-concept kitchen features built-in stainless-steel appliances and a massive center island connecting the breakfast nook, family room, and formal dining area. An elevated wraparound deck extends along much of the homes main living areas, offering an inviting place to entertain, relax, and take in the surrounding scenery. The main residence includes 3 bedrooms and 2.5 bathrooms. The primary suite offers scenic views, dual vanities, a walk-in closet, and a separate shower and soaking tub. A secondary bedroom includes an en-suite bathroom. A dedicated mudroom and separate laundry room provide added day-to-day convenience. Attached yet independently accessed guest quarters offer a spacious studio layout with kitchenette and an additional full bathroomideal for guests, extended family, or flexible living needs. Completing the property are a finished f

Facts & features

Home type

Home

Year built

2001

Floors

2

Lot size

4 acres

Price per sq ft

$345

Parking

4-car garage

Included features

  • Pool

    Yes

  • Fireplace

    Yes

  • Cooling

    Central Forced Air

  • Heating

    Fireplace, Forced Air Unit

  • Appliances

    Dishwasher, Microwave, Refrigerator, Double Oven

  • Flooring

    Tile, Wood

  • Water Source

    Other/Remarks

  • Sewer

    Unknown

  • View

    Mountain

Mortgage calculator

Estimated monthly payment

$7,275 /mo

7% rate · 30-yr fixed · 20% down

  • Principal & interest $5,854
  • Property tax $1,100
  • Insurance $321

Includes principal, interest, taxes & insurance.

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Listing Broker

CENTURY 21 MASTERS

Broker Name

CENTURY 21 MASTERS

Agent

THE MARK AND AL TEAM

Location

Glendora CA 91740