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1115 S Mollison AveEl Cajon, CA 92020

For Sale

$1,598,000

Smart Buyer Rebate $15,980

Set within the prestigious Horizon Hills enclave and embraced by the scenic foothills of Mt. Merritt and Mount Helix, this remarkable 1.3-acre estate captures the essence of refined California living. Surrounded by lush, park-like grounds adorned with mature trees, tranquil fountains, curated gardens, and sweeping vistas across the El Cajon Valley, the property offers a rare sense of seclusion and grandeur. The 3,200+ square foot main residence is a masterful expression of timeless craftsmanship and architectural heritage, thoughtfully honoring its 1925 origins while seamlessly integrating modern luxuries. Polished hardwood floors, intricate stained-glass accents, crown-molded ceilings, bespoke vintage lighting, and multiple fireplaces create an atmosphere of warmth and distinction. The light-filled interior features dual living spaces ideal for both formal and relaxed gatherings, along with a first-floor ensuite bedroom for added flexibility. At the heart of the home, the chef’s kitchen is both elegant and highly functional—appointed with a double Sub-Zero refrigerator and freezer, farmhouse sink, center island, skylights, a new Dacor smart oven and microwave, and a Kenmore Pro six-burner range. An adjacent sitting and dining area provides an intimate setting for entertaining. Upstairs, the primary suite is a true sanctuary, complete with dual walk-in closets, a two-sided fireplace, and a spa-inspired marble bath featuring a jetted soaking tub. Additional bedrooms share a spacious Jack-and-Jill bath, while an expansive multi-purpose room offers versatility for hobbies, laundry, or creative pursuits. Outdoors, the estate transforms into a private resort, showcasing a custom pool with waterfall and slide, umbrella stations, and generous Trex decking—an extraordinary backdrop for grand-scale entertaining or serene sunset evenings in complete privacy. A sweeping wraparound drive introduces the estate, offering effortless access and abundant parking for automobiles, recreational vehicles, boats, and prized collections alike—complemented by a private basketball court for recreation. A detached guest residence of approximately 700 square feet, complete with a full kitchen, provides refined accommodations for extended family, guests, or the opportunity for supplemental income. Thoughtfully enhanced and meticulously maintained, the property also features newer windows, generous storage throughout, a workshop with dedicated 220V service, central vacuum, updated HVAC, rich stone and hardwood flooring, multiple outdoor patios, and a pre-poured spa slab ready for installation. With the option to convert the detached garage to suit your needs, the estate offers exceptional flexibility. Privately set yet just moments from daily conveniences, this Horizon Hills sanctuary masterfully blends historic character, curated updates, and resort-caliber amenities into a truly distinctive offering.

Listed by Melissa Goldstein Tucci

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License #01380034

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Melissa Goldstein Tucci

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619-787-6852

Last updated February 27, 2026

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Source: CRMLS #260004677SD

Listing Facts

  • TypeSingle-family
  • NeighborhoodCasa de Oro - Mount Helix
  • Bedrooms4
  • Bathrooms4.5
  • Days on Prevu17
  • Size3,900 sqft
  • Price per sqft$410

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Air Conditioning
  • Parking
  • Swimming Pool

Location

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Listing History

02/27/2026
Listed by Melissa Goldstein Tucci
$1,598,000

Property Details for 1115 S Mollison Ave

Exterior

Construction

  • Property Condition: Turnkey
  • Roof: Metal
  • Stories: 2
  • Stories Total: 2
  • Year Built: 1925
  • Architectural Style: Mediterranean
  • Entry Level: 1
  • Entry Location: 1

Features

  • Fencing: Partial
  • Other Structures: Guest House Detached, Guest House
  • Patio And Porch Features: Deck, Open, Patio, Stone
  • Pool Features: In Ground
  • View: Mountain(s), Panoramic, Trees/Woods

Measurements

  • Lot Size Acres: 1.29
  • Lot Size Area: 56,600
  • Lot Size Source: Assessor
  • Lot Size Square Feet: 56,600
  • Lot Size Units: Square Feet

Financial

Taxes

  • Parcel Number: 4933101800

Interior

Features

  • Appliances: 6 Burner Stove, Dishwasher, Gas Cooking, Gas Oven, Microwave
  • Fireplace Features: Living Room, Primary Bedroom
  • Fireplace: Yes
  • Interior Features: Ceiling Fan(s), Cathedral Ceiling(s), Separate/Formal Dining Room, High Ceilings, Recessed Lighting, Bedroom On Main Level, Entrance Foyer, Walk-In Closet(s)

Measurements

  • Living Area: 3,900
  • Living Area Source: Assessor

Rooms

  • Bathrooms Full: 4
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 5
  • Bedrooms Total: 4

Other

Location

  • Subdivision Name: El Cajon

Parking

Parking

  • Open Parking Spaces: 6
  • Parking Features: Converted Garage, Driveway
  • Parking Total: 6

Utilities

Equipment

  • Cooling: Central Air
  • Has Cooling: Yes
  • Heating: Forced Air, Natural Gas
  • Has Heating: Yes
  • Laundry Features: Washer Hookup, Electric Dryer Hookup, Laundry Room
  • Utilities: Phone Connected, Sewer Connected, Water Connected

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 4 bedrooms and 4.5 bathrooms in this single-family home at 1115 S Mollison Ave.

Does this single-family home have parking?

Yes, there are 6 parking spaces available for 1115 S Mollison Ave.

How does 1115 S Mollison Ave compare to other single-family homes in Casa de Oro - Mount Helix?

This single-family home is listed 10% above the average price for single-family homes in Casa de Oro - Mount Helix and has been on the market for 40 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 3,900 sqft.

1115 S Mollison Ave is a 4-bedroom, 4.5-bath single-family home for sale in El Cajon CA 92020. Listed on Prevu for 17 days at $1,598,000. This residence features 3,900 square feet of living space, located in Casa de Oro - Mount Helix. The median listing price for single-family homes in this area is $1,287,000. The home offers private outdoor space, dishwasher, air conditioning, parking, and swimming pool. Explore more single-family home listings in San Diego County.

Based on information from California Regional Multiple Listing Service, Inc. 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 Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.