ONE PHASE Development & Construction
We streamline the entire process—so you can make confident decisions, stay on budget, and build with clarity from concept to completion.
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Successful Projects and Counting
Design + Architecture
Concept-to-permit plans, code/zoning compliance, and complete construction documents.
Modeling + Rendering
BIM/3D modeling and photoreal visuals to validate layouts, materials, and client approvals.
Construction Delivery
Feasibility, budgeting / engineering, permitting coordination, and full project management.
who we are
Architecture - Construction Code-aware design & a build-first mindset
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Years Strong
San Diego-based construction development and design partner with over a decade of experience delivering projects from concept to completion.
Construction & Development
Expertise in Project Management from concept to completion.
Our Projects
Showcase of Our Iconic Developed Projects
- Civil /
- Commercial /
Personalized Designs
- Automotive /
- House /
Innovative Concepts
- Automotive /
- Interiors /
Smart Planning
San Diego's Best
General Construction Contractors & Development
initial Process
Step-by-Step Approach Consultation
OnePhase Inc helps clients make confident decisions early, streamline approvals.
1
Discovery
We review your goals, property/project details, timeline, and budget range to confirm fit and define priorities.
2
Site + Feasibility
We assess zoning/code constraints, site conditions, utilities, and scope options (Residential/ADU/Commercial).
3
Scope + Budget
You receive an initial plan of action with deliverables, rough order-of-magnitude costs, and a proposed schedule.
4
Proposal
We issue a formal proposal and, upon approval, kickoff design/permitting (or pre-construction) with a clear roadmap and milestones.
onephase construction
Architecture, Modeling, and Real Project Management.
San Diego partner for ADUs, residential builds, and commercial construction