
Mitchell, South Dakota Construction Company
See It.
Plan It.
Build It.
Post frame buildings, garages, decks, siding, flooring and small renovations.
East River Homes & Post Frame is a local builder owned by Tanner Puetz. Tell us what you want to build, see real projects we've completed, or explore ideas in our Design Studio.
Your vision starts here
What could your space become?
Start with a photo, explore a design direction and discover ideas worth discussing.
Visualize My Project

Example only: the right side is an AI-generated concept, not a completed East River project. Drag to compare.
What are you dreaming about?
Six ways we help you build.
Inspiration OnlyPost Frame Buildings
Shops, storage and multi-use buildings with wide clear spans.
Inspiration OnlyGarages
Detached and attached garages planned around how you actually park, work and store.
Inspiration OnlyDecks
Outdoor living space sized for how you gather.
Inspiration OnlySiding
Fresh exteriors that protect the home and change how it looks from the street.
Inspiration OnlyFlooring
Durable, good-looking floors for real South Dakota households.
Inspiration OnlySmall Renovations
Focused updates that make a room work better.
Construction without the guesswork
Big projects come with big questions.
What will it look like?
Upload a photo and explore design directions in the Design Studio.
Open the StudioWhat will it cost?
Learn which decisions push a budget up or down before you ask for an estimate.
Plan a budgetOur work
Real projects. Real craftsmanship.

Siding upgrade project
Exterior transformation
Review Siding Options
Deck construction project
Explore Deck Ideas
Custom interior feature
Plan My RenovationCompleted East River projects. Some photos lightly touched up. More on our Facebook page.

Meet your builder
Meet Tanner.
East River Homes & Post Frame is owned by Tanner Puetz and based in Mitchell, South Dakota. Have an idea for your property or home? Start with a conversation about what you're hoping to build or improve.
Get to Know East RiverHow a project takes shape
From an idea to a finished build.
- 01
Share your ideas
- 02
Discuss the project
- 03
Review scope and options
- 04
Understand the estimate and schedule
- 05
Prepare for construction
- 06
See the project come together
Every project is different. Tanner will walk you through the steps that apply to yours.
Start with a plan