(619) 320-5694

GENERAL CONTRACTING + STRATEGIC REAL ESTATE SERVICES
ALWAYS A RETURN ON YOUR INVESTMENTâ„¢



DESIGN + BUILT
From renovation to total rehab, we make your vision a reality.
DEVELOP + INVEST
The strategies and know-how to develop your properties wisely.
MANAGE + MAINTAIN
Preserve your investment and put your project on autopilot.

BRINGING YOUR VISION TO LIFE
Cornerstone West is a Southern California expansion of the well-respected national Cornerstone brand, established in Virginia in 2004.
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We know real estate, and we undertake projects that produce a return on our client's investment.
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Whether it's a remodel or a total rehab, our general contracting services provide our clients with a boutique experience. From conceptualizing through design and from building to managing, we focus on offering comprehensive services for all aspects of residential and commercial real estate.
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Whether you’re looking to work on an existing space or undertake a bigger project, we guarantee we can help you achieve the results you seek.
Our expertise comes from our own real estate projects, and we develop and improve our clients' commercial portfolios as if they were our own.
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Contact us today to receive a free estimate.
LATEST PROJECTS
A Look at Some of Our Latest Work

MODERN KITCHEN
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Cornerstone West is currently building and designing many high end kitchens throughout southern California. We work with many of the best interior designers in the region to customize to your specific needs.
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ALTERNATIVE DWELLING UNITS (ADU)
One of our biggest requests is for renovating garages, barns, and basements -- converting them to Alternative Dwelling Units. Granny pods, mother-in-law suites, guest houses... whatever you call them, this trend isn't slowing down. Cornerstone West can help you manage this type of project and do so in a way that will maximize the increase in your home's equity.


Commercial Tenant Improvement
Cornerstone West recently completed the conversion of a multi-family residential property into a multi-purpose commercial retail and residential mix. These types of live and work spaces are gaining popularity in the southwest and across the US. Allow Cornerstone West to help you envision these types of conversions and then execute on the vision.
MEET YOUR TEAM
Managing Your Projects +Â Maximizing Your Profits

BEN MCMAHON
Partner | CEO
Ben is an experienced entrepreneur in the construction and real estate sector. He brings his experience of maximizing each space to its fullest potential. Throughout his career, Ben has started and sold multiple companies and has helped many investors make millions through JVs, partnerships, and acquisitions. Â He has managed, constructed, and repurposed hundreds of thousands of sq ft of both commercial and residential real estate.

GREG BREEN
Partner | COO
With over two decades of experience in managing properties and projects, Greg is an important asset to Cornerstone West and to your projects. Greg has managed projects of hundreds of millions of dollars or more. He brings with him a deep understanding of profitability, the markets, and management.

LUKE MOREL
Construction Superintendent
With a lifelong immersion in the construction industry, Luke brings a wealth of knowledge and a strong work ethic to the team. Hailing from a farm background, his roots in hard work and dedication are evident in every project he takes on. With a track record of successful work on numerous large-scale projects, Luke is a valuable addition to any endeavor, offering a unique perspective shaped by his upbringing and experience.
CONTACT
We are located in Southern California, Serving the U.S.
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