Studio to 3-Bedroom ADU Floor Plans Designed for Atlanta Lots

At CottageSmith, we believe every family deserves a space that feels like home. Our thoughtfully designed ADU floor plans combine efficiency, modern amenities, and comfort. Whether you need a space for aging parents, a home office, or a guest house, every plan here is built by CottageSmith for your lifestyle.

Briarwood 436

A cozy 436 sq ft ADU perfect for comfortable living. This one-bedroom tiny home features ADU floor plans with an efficient layout, a sleek kitchen, and an inviting living area for an ideal space.

L-shaped ADU floor plans 400 sq ft with kitchen and living, bathroom, and bedroom with connected closet

Briarwood 450

This 450 sq ft casita offers a modern kitchen, ample living space, and a private bedroom, making it an ideal choice for a stylish yet functional accessory dwelling.

2D small ADU floor plans for a 400 sq ft 1 bedroom with closet, kitchen and living, compact bathroom, and sliding doors

Briarwood 515

At 515 sq ft, this spacious one-bedroom ADU features an open floor plan with high-end finishes, a full kitchen, and a cozy living area for a warm, welcoming home.

Small ADU floor plans with plenty of storage, open study area and kitchen and living, single bathroom and bedroom

Briarwood 528 (Garage)

This 528 sq ft ADU includes a convenient attached garage, a well-designed kitchen, and a bright living space for a comfortable and practical setup.

Bi-level small ADU floor plans with 2-car garage, 1 bedroom, 1 bathroom, and living area and kitchen

Briarwood 553

With 533 sq ft, this one-bedroom layout offers plenty of room for relaxation, featuring a gourmet kitchen, spacious bathroom, and an airy living area.

Small ADU floor plans with L-shaped layout, 1 bedroom, 1 bathroom, and kitchen and living area leading to french doors

Briarwood 576

With 576 sq ft, this one-bedroom layout offers plenty of room, featuring a kitchen, spacious bathroom, and living area.

1 bedroom ADU floor plans containing bathroom, bedroom and on-suite closet, open floor plan living and dining, and french doors

Briarwood 598 (2 stories)

A unique two-story layout at 598 sq ft, this ADU provides an efficient living space downstairs with a private bedroom retreat on the upper level, combining privacy and style.

Two story 2 bedroom ADU floor plans containing kitchen, one and a half bathrooms, and living area

Briarwood 720

This 720 sq ft ADU offers a generous layout, including a gourmet kitchen and spacious living area, perfect for anyone looking for comfort and convenience in a compact home.

1 bedroom ADU floor plans containing bathroom and open concept living area, dining room, and kitchen

Briarwood 744

With 744 sq ft, this roomy one-bedroom ADU features an expansive open-concept layout, a chef’s kitchen, and premium finishes for luxurious, compact living.

700 sq ft 1 bedroom ADU floor plans with very roomy kitchen and dining area, living area, bathroom, and laundry room
ADU financing consultation with CottageSmith builders reviewing budget options for a custom ADU project

Flexible Financing Options for Your ADU Project in GA

Found the ADU floor plans you're looking for? At CottageSmith, we make it easy to turn your vision into reality with various financing options. Whether you're looking for a Home Equity Line of Credit (HELOC), cash-out refinancing, or other flexible solutions, our financing partners are here to help.

Explore Financing Options

Download: The Smarter Way to Care for Aging Parents

Get our free 8-page guide comparing ADU versus assisted living costs, zoning and financing options in Atlanta, aging-in-place essentials, and real family success stories. Fill out the form below to receive your copy by email.