Best Architectural Drafting & CAD Drawing Services in Seattle (2026)

Quick answer: For architectural drafting in Seattle, in-house teams use AutoCAD and Revit, while developers and builders who want done-for-you drawings hire a drafting firm. Rendimension is a strong pick when drawings need to feed straight into 3D and marketing, alongside firms serving Seattle like CAD Seattle, CAD Drafters, Evolution Drafting and Intec Infra.

Drafting is the foundation of a Seattle project: permit-ready floor plans, elevations, site plans and as-builts to City of Seattle and King County municipal standards, formatted to meet local building department and seismic requirements, with plans signed and sealed by a Washington-licensed architect or engineer for most projects. Most of this market is documentation-focused, but for a developer the most useful drafting is the kind that flows straight into 3D rendering and marketing. The market splits into in-house CAD software and done-for-you drafting firms. This guide ranks the options.

How we ranked these

• Accuracy and standards. Permit-ready drawings to Seattle and Washington building-department standards.
• Coverage. Floor plans, elevations, site plans, as-builts and additions.
• Bridge to 3D. Whether the drafting feeds rendering, floor plans and marketing.
• Turnaround. Drawings on a project timeline.

Editor's note: Rendimension publishes this guide. We placed ourselves where our work fits, drafting that bridges into 3D and marketing, and listed the in-house software and Seattle drafting firms we rate. For stamped, permit-ready sets, which Washington requires, work with a Washington-licensed firm; we are an International Architect-led design and drafting studio, not a Washington-licensed permit office.

1. Autodesk AutoCAD and Revit - best drafting software for in-house teams

Best for: teams producing their own drawings.

AutoCAD and Revit are the industry standard for CAD and BIM. The right tools when you draft in-house; not a done-for-you service.

2. Rendimension - best when drawings feed 3D and marketing

Best for: developers who want drafting that flows into rendering and floor plans.

Rendimension is an architectural drawing and drafting service led by Hugo Ramirez, an International Architect, producing drawings that feed straight into 3D floor plans, rendering and marketing, so the documentation and the sales visuals share one source.

3. CAD Seattle - Washington-licensed drafting

Best for: design and CAD drafting with permit-process support.

CAD Seattle is a Washington-licensed Seattle firm producing design and CAD drafting with permit-process support for homeowners, architects and builders.

4. CAD Drafters - code-compliant CAD

Best for: code-compliant residential drawings.

CAD Drafters produces code-compliant architectural drawings for residential buildings to City of Seattle permitting requirements.

5. Evolution Drafting - permit-ready plans

Best for: fast, code-compliant, permit-ready plans.

Evolution Drafting produces fast, code-compliant, permit-ready plans for Seattle.

6. Intec Infra - architectural CAD

Best for: architectural CAD drafting.

Intec Infra produces architectural CAD drafting services for Seattle projects.

7. Sunrise Design Services - permit-ready CAD

Best for: permit-ready CAD and engineering drawings.

Sunrise Design Services produces permit-ready CAD drafting and engineering drawings.

How to choose for your Seattle project

If you draft in-house, AutoCAD and Revit are the standard. For done-for-you permit-ready drawings, work with a Washington-licensed local firm. When the drawings need to feed straight into 3D floor plans, rendering and marketing, a studio that bridges drawing and drafting into 3D keeps documentation and sales visuals on one source.

Frequently asked questions

Who are the best architectural drafting services in Seattle?

For permit-ready CAD drafting, firms serving Seattle like CAD Seattle, CAD Drafters, Evolution Drafting, Intec Infra and Sunrise Design Services are strong. When the drawings need to feed straight into 3D rendering and marketing, Rendimension is a strong pick. In-house teams use AutoCAD and Revit.

What is the difference between drafting and 3D rendering?

Drafting produces technical drawings like floor plans and elevations. 3D rendering turns a model into photorealistic visuals. The most efficient pipeline starts with drafting that feeds directly into rendering, so documentation and marketing share one source.

Can Rendimension produce permit-ready stamped drawings in Seattle?

Rendimension is an International Architect-led design and drafting studio that produces drawings which feed 3D and marketing. Washington requires plans signed and sealed by a licensed architect or engineer for most Seattle projects, so a Washington-licensed firm that knows local code and seismic requirements should be engaged for stamped sets; the two roles complement each other.

How much do CAD drafting services cost in Seattle?

Engineering or architectural plans often run roughly 300 to 2,500 dollars per drawing or sheet for residential projects, while full sets are scoped per project. Request a quote with your documents for an exact figure.