1 Bed, 1 Bath Detached ADU – 410 sq. ft.

BR1-BA1-410 

  • 1 bed 1 bath 410 sq ft ADU

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Plan Details


  • Size: 410 sq. ft.

  • Model: BR1-BA1-410

  • Layout: 1 bedroom, 1 bathroom, detached single-story

  • Plan Size: 20' x 20'

Functional 1 Bedroom + 1 Bathroom Layout


The BR1-BA1-410 squeezes everything you need into 410 sq. ft. while maintaining comfort and flow. Its open-concept living and dining areas connect seamlessly with the kitchen, while the bedroom and bathroom are positioned for both privacy and convenience.

At Pacific Sands, we specialize in ADU designs that make the most of every square foot. The BR1-BA1-410 Model is a 410 sq. ft. detached ADU that provides a comfortable 1 bedroom, 1 bathroom layout in a compact and highly efficient footprint.


Thoughtfully designed as a 20 ft x 20 ft square, this unit blends open-concept living with smart functionality. Despite its small size, the layout feels spacious and modern, making it a great option for singles, couples, or even small families looking for affordable, stylish housing.

Key Features


  • Efficient Square Shape

  • Designed as a 20 ft x 20 ft square for functional flow.

  • Kitchen and living areas blend together without walls, creating an open-concept feel.

  • A bathroom off the kitchen ensures guests don’t need to pass through the bedroom.

  • Straight-Line Kitchen

  • Fridge, sink, and stove aligned on a single wall for ease of use.

  • Optional upgrades include a peninsula or small island for added storage and seating.

  • Large Bedroom for its Size

  • At 105 sq. ft., the bedroom is larger than most in the 400 sq. ft. range.

  • Comfortably fits a queen bed and dresser, creating a true private retreat.

Benefits for Homeowners


  • Compact & Affordable – Lower construction and utility costs make this an accessible housing solution.

  • Smart Design – Open-concept spaces with well-placed storage maximize usability.

  • Flexible Use – Works as a guest unit, rental, or personal residence.

  • Efficient Living – Small size encourages simplicity and reduces upkeep while still feeling comfortable.

Why Choose the BR1-BA1-410 Model?


The BR1-BA1-410 Detached ADU is proof that small can still feel spacious. With a functional layout, open-concept design, and full-sized bedroom, it offers an affordable yet stylish way to expand living space or generate rental income.


At Pacific Sands, we also provide permitting guidance and design customization, ensuring the BR1-BA1-410 is tailored perfectly to your property and lifestyle.