Level 3 Construction, Inc. is a San Diego-based general contractor trusted by leading developers, global hospitality brands, real estate investors, architects, and community partners to bring their visions to life. We specialize in the ground-up construction and renovation of multifamily housing, hotels, mixed-use developments, affordable/workforce housing, senior living, office spaces, restaurants, and student housing.
Under the leadership of Founder Ian Mahon, our in-house trades team brings technical expertise, budget discipline, and design fluency to every project, ensuring construction excellence and predictability. By taking a hands-on, collaborative approach, we combine efficiency, exceptional quality, and attention to detail to create spaces that inspire and communities that thrive.
With extensive experience in San Diego County, we construct mixed-use developments that enhance neighborhoods. Our projects integrate multifamily housing with vibrant retail, enliven streetscapes, and create pedestrian-friendly environments that support long-term growth.
Mixed-use developments combine residential, retail, office, hospitality, and community spaces into a single project. They create vibrant, dynamic environments where people can live, work, and engage in daily life without needing to travel far.
These developments are designed to:
- Enhance walkability by placing housing, shops, and offices within easy reach.
- Activate neighborhoods with vibrant streets and public spaces.
- Support economic growth and placemaking by attracting people and strengthening community identity.
- Increase housing and commercial opportunities to create thriving, connected communities.
Mixed-use development is more than a trend. It is a practical solution for San Diego’s urban challenges. High demand for housing, limited land, and a desire for walkable neighborhoods make mixed-use projects essential. Level 3 Construction brings these projects to life through reliable construction, efficient management, and a focus on long-term performance.
Key elements of our approach include:
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- Expert Construction That Supports Neighborhoods
We deliver mixed-use projects that integrate seamlessly into communities. Our work creates spaces where people can live, work, and shop or related services while strengthening the surrounding area.
- Flexible Structures Built to Adapt
Our construction methods support adaptable layouts and modular spaces. Projects can evolve with market demands and tenant needs while maintaining long-term value.
- Amenities That Work for Everyone
From co-working areas to event spaces and shared zones, we build functional, long-lasting environments that serve both residents and commercial tenants.
- Walkable, Transit-Friendly Developments
We support housing demand, economic activity, and vibrant neighborhoods by constructing projects that enhance walkability and transit access.
The Flats – Oceanside
A ground-up Type V over 1 mixed-use community blending modern coastal living with neighborhood charm. The Flats features 18 boutique apartments with expansive windows, soaring ceilings, and private patios. This development also includes 2,800+ sq. ft. of ground-floor commercial space, creating a hub for local businesses in one of Oceanside’s most walkable areas.
SALT – Oceanside
SALT is a four-story residential development above inviting retail spaces in downtown Oceanside. We led Phase II of this project, including preconstruction budgeting, design coordination, and multi-trade self-performance. This public/private partnership demonstrates our ability to deliver high-impact mixed-use projects efficiently and collaboratively.
Decades of experience in multifamily, hospitality, and adaptive reuse allow us to deliver complex mixed-use developments on time and within budget. Our portfolio demonstrates successful integration of residential and commercial spaces with long-term durability.
We execute projects that meet the highest standards for quality and livability. By collaborating with architects, city officials, and developers, we ensure the built environment fits seamlessly into its neighborhood.
Our entire team prioritizes communication, transparency, and responsiveness. From project managers to tradespeople, our team, including leadership, works together to deliver successful projects and lasting client relationships.
Time and again, developers choose Level 3 Construction because we combine proven expertise, meticulous execution, and a team committed to results.
Our culture of values builds quality relationships for quality projects. From our project managers and superintendents to our tradespeople and office staff, our diverse and talented team prioritizes clear communication, integrity, and transparency. We pay attention to the details because they matter, and we’re responsive to our clients’ calls and questions. It’s for these reasons that our clients, from developers and architects to nonprofits and hotel owners/hospitality management companies, entrust us with their projects again and again.
Partner with Level 3 Construction, San Diego’s trusted mixed-use contractor, to bring your vision to life. We deliver well-built, functional developments that integrate seamlessly into communities. Our goal is to complete every project on time, within budget, and to the highest standards possible.
Contact us today to learn how we can help turn your mixed-use project into a lasting success.
