Premium ADU Services in California
From initial property analysis through final construction, ADU.zone delivers end-to-end ADU solutions. Our comprehensive services cover design, engineering, permitting, and premium construction for detached ADUs, garage conversions, and more.
Our Services
We offer comprehensive ADU services including design, engineering, permitting, and construction. Each service is delivered with premium quality and expert attention to detail.
Detached ADUs
Modern freestanding units built on your property, offering maximum privacy and rental income potential. Perfect for most California lots.
Learn MoreAttached ADUs
Seamlessly integrated units connected to your main home, maximizing space efficiency while maintaining separate entrances and utilities.
Learn MoreGarage Conversions
Convert existing garages into functional living units quickly and cost-effectively. Ideal for tight urban lots and faster project timelines.
Learn MoreJunior ADUs (JADUs)
Smaller, efficient units (up to 500 sq ft) carved from your existing home. Lower construction costs with reduced regulatory complexity.
Learn MoreHome Additions
Expand your primary residence with premium additions. Add bedrooms, bathrooms, or dedicated spaces without ADU restrictions.
Learn MoreADU Design
Custom architectural designs tailored to your property and lifestyle. We create beautiful, functional spaces that maximize value.
Learn MoreEngineering Coordination
Structural engineering, MEP design, and code compliance coordination. We ensure all systems are perfectly integrated and permitted.
Learn MorePermit Management
Navigate California's complex permitting process with confidence. We manage all applications, approvals, and agency communications.
Learn MoreSite Preparation
Comprehensive site grading, drainage solutions, and utility preparation. We create the perfect foundation for your ADU.
Learn MoreFoundation Construction
Premium foundation work including concrete slabs, raised foundations, and specialized structural solutions for complex sites.
Learn MoreFraming
Expert structural framing using premium materials. We build strong, straight walls and roofs that last for decades.
Learn MoreRoofing
High-quality roofing with premium materials and expert installation. Fully warranted for weather protection and durability.
Learn MoreWindows & Doors
Premium energy-efficient windows and doors that enhance aesthetics and reduce utility costs. Expert installation and weatherproofing.
Learn MoreElectrical
Full electrical systems designed and installed by licensed electricians. Smart wiring, modern panels, and full code compliance.
Learn MorePlumbing
Complete plumbing installation from water supply to drainage. We use premium fixtures and ensure long-term reliability.
Learn MoreHVAC
Modern heating, cooling, and ventilation systems designed for efficiency. Perfect comfort control in every season.
Learn MoreInterior Finishes
Beautiful flooring, wall treatments, cabinetry, and finishes. We create luxury interiors that enhance daily living.
Learn MoreProject Management
Expert coordination from design through final inspection. We ensure on-time, on-budget delivery with premium quality.
Learn MoreWhy Choose ADU.zone
We combine premium craftsmanship, expert knowledge, and customer-focused service to deliver exceptional ADU projects across California.
AI Property Analysis
Instant preliminary feasibility reports powered by AI technology.
Transparent Pricing
Clear, detailed estimates with no hidden costs or surprises.
Dedicated Project Manager
One primary point of contact from consultation through completion.
Premium Construction
Expert craftsmanship using quality materials and proven methods.
Permit Expertise
Deep knowledge of California's complex ADU regulations and requirements.
End-to-End Service
Complete support from property analysis through final inspection.
Related Resources
Explore tools and resources to help you understand ADU costs, financing options, and what's possible for your property.
ADU Cost Calculator
Interactive calculator to estimate costs based on your project details.
AI Property Qualification
Get a preliminary feasibility report for your property in minutes.
Financing Solutions
Explore flexible financing options that work for your budget.
Featured Projects
See stunning examples of our completed ADU projects across California.
Frequently Asked Questions
Find answers to common questions about ADU construction and permits.
Success Stories
Read testimonials from homeowners who chose ADU.zone.
Ready to Discuss Your ADU Project?
Contact our expert team to discuss your property, explore service options, and get started on your premium ADU project today. We're here to guide you through every step.
Available Monday–Friday, 9 AM–6 PM PST