E400

400 Sq. Ft.
Studio
1 Bathroom
The E400 studio is the starting point of our Economy Series, 400 square feet of smart, open living. It’s built for backyard ADU projects and guest houses alike, giving property owners a straightforward way to add space without the cost or footprint of a larger build.

Curated Design Packages

Black Package

Nickel Package

Black Package

Nickel Package

Specifications

Guesthouse Option
ADU Option
Floor Plan
Features
  • 400 SF thoughtfully designed studio floor plan
  • 8-foot ceilings for a comfortable, open feel
  • Spacious full bathroom with integrated laundry area
  • Choice of a space-saving kitchenette or full kitchen
  • Quality plywood-construction cabinetry with soft-close doors and drawers
  • Durable, low-maintenance luxury vinyl plank flooring
  • Quartz countertops for a clean, polished, and long-lasting finish
  • Delta plumbing fixtures from a trusted industry brand
  • Low-maintenance tub and shower combination
  • Durable LP® T1-11 exterior siding
  • Ample recessed downlighting for bright, functional living spaces
  • Choice of two professionally coordinated design collections
  • Energy-efficient water heating
  • Efficient mini-split heating and cooling system designed to comfortably serve the entire home
  • Space-conscious design throughout to maximize function without unnecessary square footage

Take a look around!

Step inside and take a moment to get inspired! We invite you to explore our immersive 360º walk-through experience, which allows you to truly get a feel for what your RG Economy Series ADU could be like in person. 

Get Started Today

The RG ProBuilders team is ready to help you EVERY step of the way. Reach out to us today. We’ll start making your life easier from the very first phone call.

Explore Economy Series

Let's chat about your next project!

We'd love to hear from you! Please get in touch below or schedule a call. We'd love to answer your questions and provide a complimentary consultation.

Can your property fit an ADU?

Give us your address and we’ll pull the satellite imagery, check your lot against local ADU rules, and tell you straight — yes, no, or here’s what it would take. Free, no obligation, reviewed by a licensed builder.

We’ll tell you if it won’t work, too.

We may reach out with a few follow-up questions to make sure your lot check is accurate.