Custom Tiny Homes, Park Models,

and Micro Studios

Payment Plans Available - Contact Us for an appointment!

RESIDENTIAL

ADU / Guest House 

 

Models

ACCESSORY STRUCTURE

Micro Studio / Office

 

Models

COMMERCIAL & SPECIALTY 

 

Models

RECREATIONAL (RV)

Park Model & Tiny Home

 

Models

20 Twenty SMI builds Custom ADU’s, Accessory Structures, Tiny Homes & Park Models in Salem. These homes are manufactured with both GreenFLEX and traditional stick-frame. Our GreenFLEX models are a world first, combining the durability of concrete, the super-insulation of modern EPS foam, and the mobility of a Park Model. Our ADU’s, Accessory Structures, Tiny Homes and Park Models come either as a shell or completely finished. The RV’s are tested to meet ANSI A119.5 & FPBR 1192 and we are certified by RVIA. This meets the standard for a RV Park Model in almost all states. Please refer to the applicability in your state and reference to the associated laws. Please note that in many states Park Model RV’s are for temporary/seasonal living and kept in RV Parks. This makes them attractive as vacation homes or rental units.

Years in Operation

Patented Technology

Call For a Quote:

(503) 588-6769

Instant Estimate

  • Residential

  • Accessory Structure

  • Commercial & Specialty

  • RV Park Model & Tiny Home

Structures Built In Factory Delivered On Skids Or Chassis

Park Models with loft and deck options

Tiny Homes with loft and deck options

Offices / ADU Studios

Hunting Lodges / Cabins

Workforce / Student Housing

Organic Grow House / Laboratory

Bathroom / Laundry Units

Backyard ADU

 

Floor Plans

Custom Tiny Homes 

Your Portland Tiny Home will be constructed with high quality industry materials. Our proven designs are personally tailored and appointed to suit you. Our Park Models are RVIA Certified and built to ANSI Code A119.5. Let’s get started…..

Learn More

Our Portland / Salem Models

including Backyard ADUs, ADU Studios, Office Units, Student Housings, & more

Deck - Tiny Home Plans - Park Model Tiny Home, Backyard ADU, ADU Studio, & more - 20 Twenty SMI | Portland, OR
MT Bachelor- Front View - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Trailcraft 21 - Tiny Home Plans for Tiny Homes - Backyard ADU | Portland, OR
Mt Bachelor (Edwards) - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Office Customer Pic 2 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Trailcraft 24 - Tiny Home Plans for Tiny Homes - Backyard ADU | Portland, OR
Dining - Tiny Home Plans - Park Model Tiny Home, Backyard ADU, ADU Studio, & more - 20 Twenty SMI | Portland, OR
Side - Tiny Home Plans - Park Model Tiny Home, Backyard ADU, ADU Studio, & more - 20 Twenty SMI | Portland, OR
MT Bachelor 2 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Back - Tiny Home Plans - Park Model Tiny Home, Backyard ADU, ADU Studio, & more - 20 Twenty SMI | Portland, OR
Kitchen sink - Tiny Home Plans - Park Model Tiny Home, Backyard ADU, ADU Studio, & more - 20 Twenty SMI | Portland, OR
Mt Bachelor No Loft 2 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Tiny Homes Plans - Park Model Tiny Home, Backyard ADU, ADU Studio, & more - 20 Twenty SMI | Portland, OR
MT Bachelor 8 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Inside - Tiny Home Plans - Park Model Tiny Home, Backyard ADU, ADU Studio, & more - 20 Twenty SMI | Portland, OR
Trailcraft 22 - Tiny Home Plans for Tiny Homes - Backyard ADU | Portland, OR
Outside - Tiny Home Plans - Park Model Tiny Home, Backyard ADU, ADU Studio, & more - 20 Twenty SMI | Portland, OR
Outside ceiling - Tiny Home Plans - Park Model Tiny Home, Backyard ADU, ADU Studio, & more - 20 Twenty SMI | Portland, OR
MT Bachelor 4 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Base Camp 10 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Base Camp 9 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Deck door - Tiny Home Plans - Park Model Tiny Home, Backyard ADU, ADU Studio, & more - 20 Twenty SMI | Portland, OR
Trailcraft 4 - Tiny Home Plans for Tiny Homes - Backyard ADU | Portland, OR
Mt Bachelor No Loft 5 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Mt Bachelor No Loft 4 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Mt Bachelor No Loft 3 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
MT Bachelor 11 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
MT Bachelor 10 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Mountaineer 5 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
MT Bachelor 9 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
MT Bachelor 6 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
MT Bachelor 5 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR
Base Camp 7 - Tiny Home Plans from 20 Twenty smi - Backyard ADU, Park Model Tiny Homes, ADU studio, & more | Portland, OR