Attached ADUs in the Bay Area
Expand Your Home
with an Attached ADU
An attached Accessory Dwelling Unit (ADU) is an excellent way to add functional living space while maintaining direct access to your primary residence. Whether you're creating a private suite for family, a rental unit, or a home office, Be Free Developments designs and builds attached ADUs tailored to your property and goals.
A seamless extension of your existing home.
Attached ADUs share at least one wall with the primary residence while functioning as fully independent living spaces. They offer the convenience of additional housing without requiring a separate detached structure, making them a practical solution for many Bay Area homeowners.
Our team manages every stage—from design and permits to construction and final inspections—ensuring your attached ADU blends beautifully with your home's architecture.
Increase your home's functionality and value.
Attached ADUs provide flexible living arrangements while maximizing your existing property's footprint. Benefits include:
- Additional rental income opportunities
- Comfortable housing for family members
- Increased property value
- A design coordinated with the existing home
- Seamless architectural integration
- Efficient use of available space
Every project designed for your lifestyle.
Attached Guest Suites
Create comfortable accommodations for visiting family or long-term guests while maintaining privacy.
Rental ADUs
Plan a separate living unit around your intended use, subject to property-specific requirements.
In-Law Suites
Provide independent yet connected living spaces for aging parents or extended family.
Home Office ADUs
Design a quiet workspace separated from your main living areas while remaining attached to your home.
Multi-Purpose Living Spaces
Develop flexible rooms that adapt to changing family needs over time.
An attached ADU is an excellent option if you:
- Want to expand your existing home
- Have limited backyard space
- Prefer direct access between living areas
- Need additional housing for family
- Want rental income without building a separate structure
- Want to compare an attached design with a separate structure
A streamlined experience
from concept to completion.
Consultation
We discuss your goals, budget, and property requirements.
Site Evaluation
Our experts evaluate your home's layout and determine the best attachment options.
Design
Custom architectural plans are created to complement your existing home.
Permitting
We prepare and submit all required documentation for local approvals.
Construction
Our experienced builders complete your attached ADU with quality craftsmanship.
Final Walkthrough
We inspect every detail before handing over your completed project.
Everything managed under one roof.
Complete Design-Build Service
Everything managed under one roof.
Local Bay Area Expertise
Knowledge of local zoning requirements and permitting processes.
Transparent Communication
Regular project updates throughout construction.
Quality Craftsmanship
Built using durable materials and proven construction methods.
Customized Solutions
Every attached ADU is designed specifically for your property.
Answers to Your Questions
What is an attached ADU?
An attached ADU is a secondary residential unit connected to the primary home by at least one shared wall while functioning as an independent living space.
Is an attached ADU cheaper than a detached ADU?
Cost depends on the existing structure, utility connections, design, access, and scope. Compare project-specific estimates for attached and detached options.
Can I rent out an attached ADU?
Tell us your intended use during planning so applicable requirements can be reviewed with the local building department.
Does an attached ADU increase property value?
A professionally designed attached ADU can increase both the functionality and market value of your home.
How long does construction take?
Project timelines vary depending on design complexity, permitting, and construction scope, but most projects follow a clearly defined schedule.
Start Your Attached ADU Project
Whether you're creating space for family, generating rental income, or expanding your home's functionality, Be Free Developments can help you design and build an attached ADU that fits your needs.
Compare Your ADU Options
Which option should I explore next?
Compare detached ADUs, garage conversions, and our ADU and home addition services. We review the property, intended use, and proposed scope during a free on-site estimate.
How do I arrange an estimate?
Request a free on-site estimate or call (669) 298-2001. Share your city, goals, and any existing plans. We respond within 12 hours on weekdays and 24 hours on weekends. View service areas.