Permit-ready stamped plans in as little as 48 hours — free project consultation
541.791.7118
Your one-stop shop forResidential Engineering & Design Solutions
Oregon-based structural engineers for homes, ADUs, decks, and more. Licensed in over 40 states.
Enter your property address to get your project through permitting faster.
Design & Drafting
Permit-ready plans & drafting
Structural, Civil & MEP Engineering
Stamped drawings and calculations
Permitting
Submission & plan review
Five steps from sketch to permit.
One platform, one team. You always know exactly where your project stands.
Design and customization
Upload a drawing, sketch, rendering, or choose a pre-engineered plan. Our team implements your design into our proprietary engineering software and makes any design updates needed.
Engineering and collaboration
The project is engineered according to applicable codes. Customers can monitor progress, communicate directly with the engineering team, and review proposed changes through the platform.
Customer review
The completed engineering package is delivered for review and approval.
Stamping
A licensed engineer reviews and stamps the final package.
Permitting
Our team prepares the permit documentation and submits it where allowed. If local rules require the homeowner or contractor to file, we guide them through it.
Everything you need under one roof.
Design, engineering, and permitting handled by one team
— so your project never stalls between consultants.
Design & Drafting
Thoughtful residential design from concept to construction documents — floor plans, elevations, and detailing that balance vision with buildability.
- Floor plans
- Elevations
- 3D modeling
- Construction documents
Civil Engineering
Site development done right — grading, drainage, stormwater management, and utility planning that gets your residential project through permitting smoothly.
- Grading & drainage
- Stormwater plans
- Utility design
- Site permitting
Structural Engineering
Complete structural design and analysis for new homes, additions, and remodels — foundations, framing, lateral systems, and retrofits built to code and beyond.
- Foundation design
- Framing plans
- Lateral analysis
- Seismic retrofits
Permitting
We draw plans that are built to pass, checked against your local code before they ever reach the counter. Then we stay with you through plan review until your permit is approved. If your city requires the homeowner or contractor to submit, we'll guide them every step of the way.
- Code-checked plan sets
- Permit packages
- Plan review responses
- Revisions until approval
Solutions for every residential project.
From homeowners planning a first addition to developers running multi-lot builds.
Single Family Homes
Retaining Walls
ADUs
Decks & Pergolas
Tell us about your project.
And that's just the start — additions, remodels, barns, retaining walls, foundations, and anything else that needs an engineer's stamp. Tell us about your project →
The people behind the plans.
TVP Engineering (TVPE) is an Oregon-based team with more than 15 years in drafting and design. We work closely with homeowners, builders, and industry professionals on structural engineering, civil engineering, and custom residential plans.
Calvin Bontrager
President & Co-Founder
Adam Wilson
Engineering Consultant & Co-Founder
E.I.T.
Kaleb Johnson
Structural Department Lead
P.E.
Eric Kirby
Civil Department Lead
P.E.
Tell us about your project.
Start with your address. We'll confirm what your jurisdiction requires and respond within one business day with scope, timeline, and a clear path to permit-ready plans.
Some municipalities require the homeowner or general contractor to submit the permit application. Our permitting services may be limited by local requirements.
541.791.7118Prefer to talk? Schedule a callback.Ready to start your project?