Custom Home Builders Seattle, WA
Infinity Construction GC LLC provides custom home building services for homeowners planning ground-up residential construction in Seattle, Washington. As custom home builders in Seattle, we specialize in structurally sound, code-compliant homes built for complex urban environments where permits, inspections, and execution discipline matter.
We build custom homes throughout Seattle, as well as King County, Pierce County, and Thurston County, working with homeowners, architects, and design teams who need a builder capable of managing structure, sequencing, and long-term performance, not just finishes.
Our Custom Home Building Services
Full Custom Home Construction
Complete management and execution of custom home projects, including coordination of trades, scheduling, inspections, and quality control.
Pre-Construction & Planning Support
We assist with early-stage planning to reduce risk later in the build. Plan and scope review. Constructability input. Timeline and sequencing alignment. Permit-readiness preparation.
Structural Execution & Oversight
We manage framing, structural systems, and build sequencing with inspection requirements in mind from day one.
Trade Coordination & Scheduling
We coordinate trades to maintain progress, reduce delays, and prevent rework.
Inspection & Code Compliance Management
Tacoma inspections are detail-driven and unforgiving. We build to pass—without last-minute corrections.
Why Homeowners Choose Infinity Construction GC LLC
-
Structural Expertise
We come from structural construction. That experience directly impacts build quality, accuracy, and long-term performance. -
Code-Aware Execution
Seattle and Washington State codes are not optional. We build to meet them consistently and correctly. -
Hands-On Oversight
Your project is overseen by professionals who understand construction details—not passed down a chain of project managers. -
Clear Communication
Accurate estimates, realistic timelines, and direct answers throughout the build. -
Local Accountability
We build where we work. Our reputation in the South Puget Sound region matters.
What We Build
Custom Residential Construction
We build one-of-a-kind homes tailored to the site, plans, and long-term goals of the homeowner—not pre-set templates or production layouts.
- Ground-up custom home construction
- Urban and suburban residential builds
- Architect-designed homes
- Site-specific structural solutions
Structural-First Home Building
Our background in framing and structural construction informs every phase of the build.
- Foundations and structural systems
- Load-bearing assemblies and framing
- Roof systems and complex layouts
- Long-term durability and code compliance
Additions & Major Rebuilds
For properties requiring partial teardown or structural expansion.
- Major home additions
- Structural rebuilds
- Load-bearing modifications
- Integration with existing structures
Our Custom Home Building Process
01
Plan & Feasibility Review
We review architectural plans, site conditions, and structural requirements to identify complexity early.
02
Pre-Construction Coordination
Permitting strategy, sequencing, and scheduling are aligned before construction begins.
03
Structural Construction
Foundations, framing, and load-bearing systems are executed with precision and code compliance.
04
Build-Out & Trade Coordination
We manage trades, inspections, and quality control through each phase of construction.
05
Final Inspections & Completion
We complete the project with inspection approval, documentation, and clean turnover.
Request a Custom Home Building Consultation
If you’re planning a custom home in Seattle and need a builder who understands structure, permits, inspections, and execution—not just design—Infinity Construction GC LLC is ready to help.
We work with homeowners who value accuracy, accountability, and long-term performance.
Request a consultation today to discuss your custom home project.
What Seattle Custom Home Builders Must Navigate
Building a custom home in Seattle is governed by multiple overlapping regulatory systems. Understanding how these systems interact is critical to avoiding permit delays, redesigns, and inspection failures mid-project.
Infinity Construction GC LLC builds with direct awareness of the agencies and requirements that control residential construction in Seattle, including:
Seattle Department of Construction & Inspections (SDCI)
SDCI oversees zoning, permitting, plan review, and inspections for all residential construction within Seattle city limits. Custom homes commonly require coordination across multiple SDCI review tracks, including:
- Land use and zoning compliance
- Structural and seismic review
- Stormwater and drainage review
- Energy code compliance
- Site access and construction staging approval
Washington State Building Code Council
All custom homes in Seattle must comply with Washington State–adopted building codes, including structural, seismic, energy, and life-safety provisions that exceed national baseline standards.
These codes directly affect:
- Structural framing requirements
- Shear wall placement and fastening schedules
- Foundation and lateral load design
- Moisture and weather-resistive detailing
Builders unfamiliar with Washington-specific code adoption often underestimate scope, cost, and construction sequencing.
Seismic & Moisture Design Reality in Seattle
Seattle lies within a seismically active region of the Pacific Northwest and experiences prolonged seasonal moisture exposure. As a result, custom homes must be built with:
- Enhanced lateral load paths
- Proper shear wall and bracing continuity
- Moisture-resistant detailing during construction—not just at completion
- Inspection-ready framing and fastening visibility
These requirements are not optional and are routinely enforced during inspection phases.
Why This Matters to Homeowners
Custom home projects in Seattle most often fail due to:
- Incomplete or non-buildable plan submittals
- Builders underestimating inspection density
- Structural revisions triggered after framing
- Moisture issues introduced during construction sequencing
Infinity Construction GC LLC plans and builds with these constraints accounted for before construction begins, reducing delays, redesigns, and costly mid-project corrections.
Custom Home Builders in Seattle Neighborhoods
Infinity Construction GC LLC works on custom home projects throughout Seattle, including neighborhoods where zoning, lot constraints, and inspection requirements vary significantly.
We regularly build in areas such as:
- Ballard
- West Seattle
- Magnolia
- Queen Anne
- Capitol Hill
- Green Lake
- Beacon Hill
Each neighborhood presents different challenges related to lot size, access, slope, utilities, and permitting. Our experience building within Seattle’s varied residential zones allows us to plan and execute accordingly—without surprises mid-build.
Get a Free Estimate
Whether you’re starting a new build or need structural framing support, Infinity Construction GC LLC delivers results that hold up.
Seattle isn’t just regulated — it’s fragmented. Zoning overlays, environmentally critical areas, shoreline rules, steep-slope ordinances, and neighborhood-specific design review all stack on top of base code. Add in aggressive energy requirements and tight urban site constraints, and small missteps snowball fast. If your team treats Seattle like a generic Puget Sound city, expect redesigns, permit corrections, and months lost navigating departments that don’t coordinate cleanly with each other.
Immediately — or you’re already behind. Many Seattle plans look good on paper but fall apart under constructability, energy compliance, or site logistics. Urban access, crane vs. pump decisions, staging space, and inspection sequencing are often ignored by architects. A builder involved pre-permit can flag these issues early, align engineering with real-world constraints, and prevent expensive redesigns after SDCI review has already started.
Permitting strategy — or the lack of one. Delays usually aren’t caused by labor shortages or rain; they’re caused by incomplete submittals, misclassified scopes, or underestimating how strictly Seattle enforces documentation and sequencing. Once a permit is paused or kicked back, the clock doesn’t just stop — it reverses. Projects that move smoothly are run by teams who understand how to anticipate reviewer questions and structure work to satisfy inspections the first time.