Mount Helix Real Estate

Welcome to Mount Helix, a hidden gem nestled in the heart of San Diego County, California. This enchanting subdivision is renowned for its stunning views, lush landscapes, and a tight-knit community that embodies the spirit of Southern California living. Perched atop one of the area's highest peaks, Mount Helix offers residents breathtaking panoramas of the surrounding mountains and the sparkling Pacific Ocean in the distance.

One of the most alluring features of Mount Helix is its blend of suburban charm and natural beauty. The area is characterized by spacious lots, mature trees, and picturesque homes that reflect a variety of architectural styles, from mid-century modern to elegant ranch-style. The neighborhood is perfect for families, retirees, and anyone seeking a tranquil retreat while remaining conveniently close to urban amenities.

Outdoor enthusiasts will find plenty to love in Mount Helix. The nearby Mount Helix Park provides an ideal setting for hiking, picnicking, and enjoying the great outdoors. With its well-maintained trails and scenic viewpoints, it's a favorite spot for both locals and visitors alike to soak in the natural beauty of the region.

Additionally, Mount Helix boasts a strong sense of community, with local events and gatherings that foster connections among residents. Excellent schools, shopping centers, and dining options are just a short drive away, making it easy to enjoy both the serenity of suburban life and the vibrancy of San Diego.

Discover the charm of Mount Helix—a place where stunning views, community spirit, and natural beauty come together to create an idyllic lifestyle. Your dream home awaits in this captivating corner of California!

Newest Listings in Mount Helix

$1,589,000

3 Beds ⋅ 3 Baths ⋅ 260024561SD MLS

Tucked away at the end of a quiet cul-de-sac in Shadow Hills, this fully refreshed 3-bed, 2-bath retreat sits on a private acre with sweeping valley views and a citrus grove of grapefruit, orange, and lemon trees. Inside you’ll find 2,198 sq ft of fresh new updates: new paint, flooring, baths, Samsung Bespoke appliances, and a statement kitchen island creates a move-in-ready backdrop for entertaining. The spacious living and dining rooms, anchored by a fireplace, flow to an expansive patio, pool, and spa with new equipment and a gas heater. The primary suite offers pool and mountain views, an en-suite bath, and a brand-new dressing room. Owned solar, a laundry room with half bath, a 2-car garage, RV parking, and a versatile outbuilding for a workshop or storage round out the package. All of it sits minutes from shopping and the freeway, in the peaceful hills of Mt. Helix.

11701 Shadow Valley Rd., El Cajon

Listing courtesy of Listing Agent: Stephanie Xelowski (Stephanie@StephanieXelowski.com) from Listing Office: Real Broker.

$2,150,000

3 Beds ⋅ 3 Baths ⋅ 260024430SD MLS

The historically designated Casady Home is a rare example of single-level Southern California Mid-Century Modern architecture, set at the end of a private Mount Helix road and benefiting from substantial Mills Act tax savings. Designed by acclaimed architect Art Decker in 1961 and built by noted Mid-Century craftsman John Mortenson, the home was later purchased by Decker himself, who lived there for more than five decades. Original architectural details, custom millwork, extensive built-in storage, walls of glass, and seamless indoor-outdoor flow remain remarkably intact, complemented by thoughtful modern updates including custom cabinetry, high-end appliances, premium fixtures, and a permitted office/flex space. Commissioned by Si Casady and designed by acclaimed architect Art Decker in 1961, the Casady Home represents an unusually personal chapter in Decker’s work. He later purchased the residence himself and lived in it for more than five decades, preserving the home and its original architectural character with remarkable care. Built by respected Mid-Century craftsman John Mortenson, the residence reflects the era’s emphasis on clean horizontal lines, expansive glass, custom woodwork, built-in storage, and a strong connection between the interior and surrounding landscape. The home’s single-level floor plan was carefully organized to create a natural separation between gathering spaces and private quarters while maintaining views and outdoor connections throughout. Set against a gentle hillside and surrounded by mature olive trees, coastal oaks, and eucalyptus, the property feels exceptionally private and removed from its surroundings. City lights, distant mountains, mature landscaping, and changing sunsets are framed from multiple rooms and outdoor areas. Updates have been made with sensitivity to the original architecture, including custom cabinetry, high-end appliances, premium fixtures, and a fully permitted office/flex space designed to complement the home’s existing forms rather than imitate its history. Much of the original detailing remains intact, giving the residence a level of authenticity that is increasingly difficult to find in Mid-Century homes. The property also benefits from an official Mills Act historical designation, with current annual property taxes of approximately $4,200. This provides a meaningful long-term ownership advantage while supporting the preservation of the home’s historic character. Energy improvements include 22 owned solar panels on NEM 2.0, along with additional panels under a power purchase agreement. Despite its secluded setting, the property remains convenient to major freeways, shopping, dining, and La Mesa Village. The combination of architectural significance, privacy, preserved design, views, modern updates, and substantial tax advantages makes the Casady Home a truly distinctive offering in Mount Helix.

10010 Shadow Rd, La Mesa

Listing courtesy of Listing Agent: Ryan Ponce (ryan@livingthesandiegolife.com) from Listing Office: Compass.

$749,000

3 Beds ⋅ 2 Baths ⋅ 260024328SD MLS

Mount Helix Fixer with Endless Potential! Bring your vision and creativity to this Mount Helix fixer with great potential and plenty of space to make it your own! This 3-bedroom, 2-bath home offers a versatile floor plan with both a comfortable living room and separate family room, providing plenty of room to spread out, entertain, or create dedicated spaces for work and relaxation. Outside, the property continues to shine with opportunity. The fenced yard features mature landscaping, offering privacy and a beautiful foundation for your future outdoor oasis. A spacious backyard shed, previously used as an art studio, provides an inspiring bonus space for creative pursuits, a workshop, home office, or storage. There’s also abundant off-street parking, including room for an RV, making this property especially appealing for those who need extra parking or storage options. Conveniently located near SR-94, SR-125, and SR-52, you’ll have easy access to shopping, dining, schools, and surrounding communities, with a quick trip to downtown San Diego or the beach. A property with character, space, and plenty of upside—ready for someone with vision to unlock its full potential!

10704 Challenge, La Mesa

Listing courtesy of Listing Agent: Andrea Flint-Gogek (andreagogek@gmail.com) from Listing Office: Tranquility Real Estate Services.

$2,700,000

4 Beds ⋅ 5 Baths ⋅ 260024236SD MLS

The Engstrand Residence by Sim Bruce Richards is one of the most engaging examples of the architect’s woodsy, organic modernism. Historically designated (with Mills Act property tax savings in place), the home offers intoxicating views from every room. The interior hosts a number of built-in works by artist James Hubbell. Nestled comfortably amidst granite boulders and mature trees, the 0.82-acre site also hosts a myriad of potential formal and informal dining and entertaining opportunities. The pool and spa area is sited to offer privacy for you and your relaxed guests. Beyond the 4 bedrooms and 4.5 bathrooms inside the home, there is an additional pool-adjacent activity room and half-bath. An additional 1-bedroom, 1-bathroom apartment over the carport has served the owners as a rental as well as professional studio. Since their purchase, the present owners embarked on a number of significant improvements including: new HVAC system, pool equipment, solar, electric car charger, drought-tolerant landscaping with automatic irrigation, and whole-house water filtration among other projects.

9450 Sunset Drive, La Mesa

Listing courtesy of Listing Agent: Keith York (keith@modernsandiego.com) from Listing Office: Agents of Architecture.

$990,000

4 Beds ⋅ 2 Baths ⋅ ND26215235 MLS

COMING SOON! Welcome to 10150 Sierra Madre Road — a wonderful opportunity in the desirable Casa de Oro area of Spring Valley. Situated on an approximately 10,500-square-foot lot, this 1968 home offers an excellent combination of location, space, and potential. The property is nestled in the Casa de Oro–Mount Helix area, providing convenient access to shopping, dining, schools, parks, and major San Diego transportation routes. The generous lot offers plenty of room to enjoy the outdoors and presents exciting possibilities for the next owner. Whether you're looking to make this home your own, update it to suit your personal style, or explore its future potential, 10150 Sierra Madre Road is a property worth seeing. Located in the 91977 area and within the Grossmont Union High School District, this property offers a convenient Spring Valley location with easy access to surrounding East County communities. Don't miss the opportunity to make this Casa de Oro property your next home.

10150 Sierra Madre, Spring Valley

Listing courtesy of Listing Agent: Randall Cunningham (toddcunningham619@gmail.com) from Listing Office: Clifford R Stevens, Broker.

$299,900

260023839SD MLS

Positioned at an elevated vantage point in the prestigious Helix Vista Estates subdivision, this 17,266 square foot residential lot on Grandview Drive offers one of the last remaining opportunities to build a custom home in the heart of Mt. Helix — La Mesa's most coveted hillside community. Offered as a motivated trust sale, this parcel is priced to move and ready for the right builder or owner-builder to bring a vision to life. The views from this elevated lot are the primary asset. Oriented to capture sweeping panoramas of city lights and the iconic Mt. Helix cross, the topography lends itself to a dramatic multi-level custom estate with terraced outdoor living, floor-to-ceiling glass, and the kind of vantage point that simply cannot be replicated on flat land. Surrounding properties are high-end custom homes, establishing the neighborhood's value floor and validating the investment thesis. Zoned R-1 (Single-Family Residential), the parcel is 0.4 acres — substantial enough for a meaningful footprint with room for a pool, ADU consideration, detached garage, or expansive outdoor entertaining. The gently sloping terrain creates natural building pads and design opportunities. Utilities are available in the area. Access is via Grandview Drive. Nearby: Glen E. Murdock Elementary (0.4 mi), Spring Valley Middle School (0.9 mi), Grossmont High School (1.3 mi), La Mesa Village (approx. 10 min). Easy access to SR-94, I-8, and SR-125. Seller makes no representations regarding utilities, soils, or development feasibility. Buyer to investigate all development conditions independent

Grandview, La Mesa

Listing courtesy of Listing Agent: Steven Rotsart (associates@rotsart.com) from Listing Office: Coldwell Banker Realty.

$1,375,000

7 Beds ⋅ 5 Baths ⋅ 260023600SD MLS

Let your mortgage pay you back. This Mt. Helix hillside retreat isn't just a home — it's THREE income-ready living spaces on one property: a 4BR main residence, a permitted 1BR/1BA ADU, and a permitted 2BR/2BA lower-level suite, each with its own living space (7 bedrooms, 5 bathrooms, 3,125 sq ft total). Live in the main house and rent out the other two, house-hack your way into one of La Mesa's most coveted view neighborhoods, or set up multigenerational living without giving up privacy. The main residence offers an open floor plan, abundant natural light, and a private balcony framing panoramic canyon and sunset views. Step outside to a resort-style backyard — pool, spa, and multiple entertaining areas — powered by a prepaid solar lease (paid in full through 2040, NO monthly bill). Now priced to sale at $1,375,000 Three separate living spaces. One extraordinary setting. ***Buyer to verify rental/ADU use with the City of La Mesa. Note: not every bedroom includes a closet — full floor plan available upon request.

10111 Cliffwood Dr, La Mesa

Listing courtesy of Listing Agent: Evett Elshaa (eelshaarealtor@gmail.com) from Listing Office: Century 21 Affiliated.

$1,785,000

4 Beds ⋅ 4 Baths ⋅ 260023541SD MLS

Iconic opportunity to own a piece of history. One of only two Wallace Neff–designed homes in San Diego County, built in 1938 by the architect of Pickfair and Hollywood's Golden Age estates. Restored with a level of craftsmanship the architecture demanded. Set far off the street behind a curved driveway. Soaring exposed wood-beam ceilings, original built-ins, a central fireplace, French doors opening to formal gardens, and picture windows framing the eastern mountains and city lights. Elevated designer kitchen with a Liebherr refrigerator, 48-inch dual-fuel range, dual sinks, and soapstone and Carrara marble countertops. Seamless hardwood flooring runs the entire home without a single threshold or transition. Two primary suites on the main level, a third bedroom off the entry, and a loft reached by a custom staircase and railing as a flexible fifth bedroom. Detached guest quarters with en-suite bath, ideal for extended family visiting, multigenerational living, or a private office with separate entrance to maximize income. The .9-acre usable lot comes with a workshop, established gardens, 18 fruit trees, olive trees, and enough space for a private ADU. This rare opportunity comes around once in a lifetime.

10260 Fuerte, La Mesa

Listing courtesy of Listing Agent: Joseph Acosta (j.acosta@kw.com) from Listing Office: Keller Williams San Diego Metro.

$1,125,000

4 Beds ⋅ 3 Baths ⋅ 260023266SD MLS

Welcome to the foothills of Mount Helix, where space, privacy, and views come together. This spacious two story home offers 4 bedrooms and 3 bathrooms on an expansive 18,000+ sq. ft. lot. The open and airy floor plan features a generous kitchen and living area, along with a separate dining room and family room, providing plenty of space for everyday living and entertaining. Large rooms and an abundance of natural light create an open, comfortable feel throughout the home. Step outside and enjoy the expansive property, mature surroundings, and beautiful views. With its generous lot and desirable location, this is a wonderful opportunity to make this spacious property your own.

3537 Ybarra Rd, Spring Valley

Listing courtesy of Listing Agent: Deborah Trevino (sold@deborahtrevino.com) from Listing Office: Palisade Realty Inc.

$1,049,000

3 Beds ⋅ 2 Baths ⋅ 260023172SD MLS

This 3 bedroom, 2 bathroom Mt. Helix home is situated on a private hilltop lot spanning over half an acre with an additional 1,000 sqft. of new redwood deck and brick patio space. This completely reimagined home offers the perfect blend of modern luxury, privacy, and breathtaking views, perfect space for entertaining. Every inch of this home has been thoughtfully renovated with quality craftsmanship and designer finishes throughout. The stunning chef's kitchen features custom cabinetry, natural quartzite countertops, new appliances. High- end marble tile, new flooring, baseboards, lighting, and freshly textured walls continue the elevated design throughout. Enjoy peace of mind with Upgraded- electrical, plumbing inside and under the home, black dual-pane windows and doors, HVAC system and ducting, and a new tankless water heater. The spacious interior mudroom with laundry hook ups leads you to a large covered brick patio. Detached 2 car garage with lots of additional parking. Plenty of room for an ADU, RV, trailer, and all of your toys. Located in the Mt. Helix community close to Rancho San Diego. This is not your typical remodel and the distinction can be felt the minute you step in!

10765 Lupin Way, La Mesa

Listing courtesy of Listing Agent: Hayley Taylor (hayleybeason@gmail.com) from Listing Office: Chris Beason Realty.

$1,550,000

4 Beds ⋅ 4 Baths ⋅ 260022919SD MLS

Set among the trees in Mt. Helix, this fully reimagined retreat offers 4 bedrooms, 3.5 baths and 3,308 sq ft of thoughtfully designed living space. Soaring wood-beamed ceilings, expansive windows with views to the top of Mt. Helix and modern fireplaces bring warmth and character throughout. The chef’s kitchen features a ZLINE 6-burner range, Il Forno appliances, Taj Mahal quartzite countertops and a hidden walk-in pantry. The adjacent family room opens to a redwood deck and backyard for effortless indoor-outdoor living. Upstairs, the serene primary suite features a spa-inspired bath with body sprayer and dramatic waterfall shower cascading from a skylight. Downstairs, a flexible bonus room is ideal for a gym, playroom, office or potential 5th bedroom, while a second ensuite offers privacy for guests. Outside, enjoy .44 acres of terraced grounds, redwood decking, potential ADU space and a freshly replastered pool with new energy-efficient equipment. Owned solar, a detached shed with utilities and enclosed dog kennel add functionality. Available furnished, this distinctive property is equally suited as a primary residence, second home or investment opportunity.

4242 Avenida Gregory, Spring Valley

Listing courtesy of Listing Agent: Nicole Nevin (nicole@aperturere.com) from Listing Office: Aperture Real Estate Services.

$1,299,000

4 Beds ⋅ 3 Baths ⋅ 260022531SD MLS

Set in the hills of Mount Helix on a quiet cul de sac, this turnkey home offers sweeping mountain and neighborhood views. The private, resort style backyard is designed for entertaining, featuring an outdoor kitchen beneath a trellised patio with plenty of space for outdoor dining, relaxing, or adding a pool. A grand entrance welcomes you inside, where you’ll find two gracious living spaces, including a handsome den with a stone fireplace and wet bar, along with a formal dining room and spacious kitchen. Paid solar!

9370 Viento Fuerte, La Mesa

Listing courtesy of Listing Agent: Andrea Coleman (keystosandiego@gmail.com) from Listing Office: Real Broker.

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Based on information from California Regional Multiple Listing Service, Inc. as of . 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. 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, 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.