1 Bed, 1 Bath Detached ADU – 580 sq. ft.

BR1-BA1-580a

Plan Details


  • Size: 580 sq. ft.

  • Model: BR1-BA1-580a

  • Layout: 1 bedroom, 1.5 bathrooms, detached single-story

  • Shape: Rectangular

Functional 1 Bedroom + 1.5 Bathroom Layout


The BR1-BA1-580a balances private and shared spaces with its rectangular footprint:


  • Bedroom – Private retreat with direct ensuite access.

  • Ensuite Bathroom – A full-sized bathroom connected directly to the bedroom.

  • Powder Room – A rare half-bath connected to the living/kitchen area for guest use.

  • Shared Space – Open living + kitchen area creates flow and functionality.

At Pacific Sands, we specialize in designing ADUs that combine comfort, flexibility, and smart planning. The BR1-BA1-580a Model is a 580 sq. ft. detached ADU featuring a 1 bedroom, 1.5 bathroom layout—a rare configuration that provides both privacy and guest-friendly convenience.


This plan is ideal for couples, individuals, or small families who want a compact home that still feels open, modern, and highly livable.

Key Features


  • Functional Rectangular Shape

  • 30' x 16'-7" x 20' footprint supports an open-concept layout.

  • Kitchen + living room are separated from the bedroom for privacy.

  • Powder Room (Half-Bath)

  • A unique addition in a 580 sq. ft. ADU.

  • Connected to the shared living areas so guests never need to access the bedroom.

  • Adds convenience and increases property value.

  • Full-Size Ensuite Bathroom

  • 46 sq. ft. ensuite includes shower/tub combo with integrated shelving.

  • Quartz vanity countertop with modern finishes.

  • Provides privacy for occupants, separate from guest use.

  • Spacious Shared Space

  • 66 sq. ft. kitchen + 207 sq. ft. living room = 273 sq. ft. combined open-concept hub.

  • Large living room for this ADU size makes entertaining easy.

  • Chef’s Kitchen

  • Upper and lower cabinetry, quartz countertops with 4” backsplash, and a full appliance package.

  • Flows seamlessly into the oversized living room for social cooking and dining.

Benefits for Homeowners


  • Rare Guest-Friendly Design – Powder room means guests have convenient bathroom access without intruding on the bedroom.

  • Privacy for Occupants – Ensuite full bathroom offers personal comfort and separation.

  • Compact Yet Spacious – Oversized living room and open-concept design make the unit feel larger than 580 sq. ft.

  • Boosts Appraised Value – 1.5 bathrooms in a small ADU is a major value driver.

  • Flexible Use – Works as a rental, guest suite, or primary downsized residence.

Why Choose the BR1-BA1-580a Model?


The BR1-BA1-580a Detached ADU is a rare find: a compact footprint with both an ensuite and a guest-friendly powder room. It’s ideal for homeowners who entertain often, as well as those who want a design that balances efficiency with comfort.


At Pacific Sands, we provide permitting support and customization options, ensuring your BR1-BA1-580a ADU fits seamlessly into your property and lifestyle.