Custom Tiny Home Floor Plans Available

Financing Available - Contact Us for an appointment!

Get a Quote For Your Tiny Home & Park Model Projects

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20 Twenty SMI primarily builds Tiny Homes & Park Models. 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 Tiny Homes and Park Models come either as a shell or completely finished. They 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

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Tiny Homes Living Large

Park Models with loft and deck options / ADUs

Tiny Homes with loft and deck options / ADUs

Offices / ADU Studios

Hunting Lodges / Cabins

Workforce / Student Housing

Organic Grow House / Laboratory

Bathroom / Laundry Units

Backyard ADU

 

Floor Plans

Your Custom Tiny Homes 

Your 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…..

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Our Work with Tiny Homes & Park 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