3 Bedroom ADU Floor Plans: A Guide

For homeowners looking for maximum space and versatility, 3 bedroom ADU floor plans are an excellent choice. These units offer ample room for larger families, shared living arrangements, or higher rental income possibilities. This guide will delve into what makes 3 bedroom ADUs an attractive option.

What is a 3 Bedroom ADU?

One of our clients is planning to build a three-bedroom ADU to accommodate their visiting relatives. She wants them to feel at home, with space to gather and adequate privacy. After exploring various floor plans with us at length, she settled on a design that offers cozy bedrooms and a large, inviting living area, perfect for family time and relaxation.

As you can guess, a 3 bedroom ADU provides three separate bedrooms, along with living, kitchen, and bathroom spaces. This setup is perfect for accommodating larger families or groups, providing privacy and comfort while maintaining communal living areas.

Basics of 3 Bedroom ADU Floor Plans

When planning a three-bedroom ADU, it’s crucial to balance private and shared spaces. Typically, these floor plans feature a central living area flanked by bedrooms, optimizing both communal interaction and personal privacy.

3 bedroom ADU floor plans

A well-thought-out design can ensure efficient use of space and offer comfort and functionality.

3 Bedroom ADU Sizes

3 bedroom ADUs are typically larger, ranging from 800 to 1,200 square feet or more, depending on zoning regulations and lot size. This size allows for more comprehensive amenities, such as larger kitchens, multiple bathrooms, and spacious living areas.

Three-bedroom ADU floor plans provide a practical solution for those needing extra space. Therefore, with careful planning, these units can serve as comfortable family homes, lucrative rental properties, or both.

3 Bedroom ADU Floor Plan at a Glance

Trait Description
Size Typically ranges from 800-1,200 sq ft, offering generous living space.
Layout Features three separate bedrooms, a living area, kitchen, and one or more bathrooms.
Design Focuses on privacy and comfort, with clear separation between sleeping and living areas.
Amenities Includes full kitchen facilities, multiple bathrooms, and often in-unit laundry.


Partnering with GoldenADU for your 3-bedroom ADU project connects you with experts especially renowned for their expertise, adaptability, and exceptional quality.

GoldenADU is adept at creating both custom and prefab 3 bedroom ADUs, ensuring each build is visually appealing and tailored to your preferences. We are dedicated to sustainability, regulatory compliance, and client satisfaction, managing your project from design through to completion to guarantee a smooth and fulfilling experience.

Contact us today at 213-693-2405 to get your free ADU consultation! 


Who should consider a 3 bedroom ADU?

A 3 bedroom ADU is especially ideal for larger families, multiple tenants, or homeowners seeking substantial rental income.

What is the typical size of a 3 bedroom ADU?

A 3 bedroom ADU usually ranges from 800 to 1,200 square feet, tailored to lot size and zoning laws.

Can 3 bedroom ADUs be customized?

Yes, these plans are versatile and can be adjusted to fit specific lifestyle needs and preferences.

What factors should I consider in a 3 bedroom ADU design?

You should particularly focus on the balance of private and shared spaces, functionality, and, of course, overall comfort.

Are 3 bedroom ADUs a good investment?

Definitely, they offer high value both as family residences and high-demand rental properties.

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