Adding a detached garage or accessory dwelling unit (ADU) is an exciting step for many homeowners in Altadena, CA. However, managing multiple trades, permits, and timelines on your own can quickly turn a dream project into a logistical nightmare. This is where a licensed general contracting becomes your most valuable asset, offering expert oversight, seamless coordination, and peace of mind.
What a General Contractor Does (Especially for Detached Garages and ADUs)
A general contractor serves as the project manager for your construction—coordinating every phase from design through final inspection. For complex projects like detached garages and ADUs, this role becomes even more critical.
Key responsibilities include:
- Project planning: Developing timelines, budgets, and scope definitions
- Permit management: Handling all permit applications and inspections
- Subcontractor coordination: Hiring and managing electricians, plumbers, framers, etc.
- Material procurement: Ordering materials and ensuring timely delivery
- Quality control: Ensuring all work meets code and quality standards
- Problem-solving: Addressing unexpected challenges as they arise
- Communication: Keeping you informed throughout the process
Why Detached Garages and ADUs Need Professional Management
These projects involve complexities that make professional oversight essential:
1. Multiple trades required
Building a detached structure requires coordinating foundation work, framing, roofing, electrical, plumbing, HVAC, drywall, and finishing—each requiring specialized expertise and precise timing.
2. Strict permitting requirements
Altadena has specific zoning regulations, setback requirements, and building codes. A general contractor navigates these requirements efficiently, avoiding costly delays or violations.
3. Utility connections
Extending electrical, water, sewer, and gas lines to new structures requires careful planning, proper permits, and coordination with utility companies.
4. Site preparation challenges
Grading, drainage, and foundation work must account for Altadena's terrain and soil conditions. Proper site preparation prevents future issues.
The General Contractor's Role: Step by Step
Phase 1: Planning and design
- Evaluate site conditions and feasibility
- Develop preliminary designs and layouts
- Provide accurate cost estimates
- Help you make informed decisions about materials and finishes
Phase 2: Permitting
- Prepare detailed construction plans
- Submit permit applications to Altadena/LA County
- Address plan check comments
- Obtain all required approvals
Phase 3: Site preparation
- Clear and grade the site
- Install temporary utilities
- Establish construction access
- Protect existing landscaping and structures
Phase 4: Construction
- Foundation and concrete work
- Framing and roofing
- Rough-in work (electrical, plumbing, HVAC)
- Insulation and drywall
- Interior and exterior finishes
- Final fixtures and details
Phase 5: Inspections and completion
- Schedule and coordinate all required inspections
- Address any inspection corrections
- Obtain certificate of occupancy (for ADUs)
- Conduct final walkthrough with you
Benefits of Hiring a General Contractor
1. Time savings
Contractors manage all coordination, freeing you from constant scheduling, decision-making, and problem-solving.
2. Cost control
Professional contractors leverage supplier relationships, accurately estimate costs, and prevent expensive mistakes.
3. Quality assurance
Experience contractors ensure all work meets or exceeds code requirements and industry standards.
4. Legal protection
Licensed contractors carry insurance and bonds that protect you from liability and financial loss.
5. Stress reduction
One point of contact handles all aspects of your project, eliminating the burden of managing multiple workers.
Choosing the Right General Contractor in Altadena
Look for contractors who:
- Hold active California CSLB licenses
- Carry proper insurance and bonding
- Have experience with detached garages and ADUs
- Understand Altadena's local requirements
- Provide detailed written estimates
- Offer clear communication and regular updates
- Can provide references from recent similar projects
Turn Your Vision Into Reality
At New Dawn Construction, we specialize in detached garages and ADU construction projects throughout Altadena, Burbank, and Pasadena. As your general contractor, we handle every detail—from initial concept through final inspection—ensuring your project is completed on time, on budget, and to the highest quality standards.
For comprehensive ADU planning guidance, explore our Ultimate ADU Construction Guide for LA County. Ready to add a detached garage or ADU to your Altadena property? Contact New Dawn Construction for a free consultation and let's discuss how we can bring your project to life.



