ADU Construction in San Diego

AH Construction helps San Diego homeowners plan and build functional ADUs with organized project management, dependable scheduling, and quality craftsmanship.

ADU Construction Solutions for San Diego Homeowners

AH Construction helps homeowners improve property functionality and long-term value through organized ADU planning, dependable construction coordination, and efficient project execution throughout San Diego County.

Our ADU Construction Process

Our process is designed to keep ADU projects organized, efficient, and aligned with San Diego building requirements from planning through completion.

01. Site Evaluation & Planning

We review the property layout, project goals, zoning considerations, and feasibility requirements before construction begins.

02. Design & Pre-Construction

Our team coordinates planning, layouts, scheduling, and project preparation to streamline the construction process.

03. Permitting & Coordination

We help organize documentation and construction coordination to keep the project moving efficiently.

04. Construction Execution

Our construction team manages framing, finishes, installations, and scheduling with attention to quality and organization.

05. Final Walkthrough

We review the completed project carefully to confirm workmanship, functionality, and overall project completion.

06. Project Completion

The completed ADU is prepared for long-term functionality, usability, and overall property value improvement.

What ADU Construction Projects Can Include

Typical ADU project needs include:

Detached ADU construction
Garage conversion coordination
Interior layout improvements
Utility and finish coordination
Residential property improvements
Project planning and construction management

An ADU is a natural extension of a custom home remodel, often including a full kitchen. See our completed projects.

Organized Project Management

We help keep ADU projects organized with clear coordination, scheduling, and communication.

Dependable Construction Execution

Our team focuses on quality workmanship and efficient project progression from start to finish.

San Diego Construction Experience

AH Construction (Aguilar Homes Inc.) is a licensed, bonded, and insured California general contractor — CSLB #912852 — remodeling homes across San Diego County for over 20 years.

      EXCELLENT  
   Based on 35 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Cheree Bray 
 
 
 
 Trustindex verifies that the original source of the review is Google. I worked with them over four days and had approximately 20 loads delivered to my facility. Cannen and Joe were absolutely amazing! Great communication always on time and always with a smile on their face. It’s hard to be a woman trying to do things in a man’s world in construction, and they never made me feel that way. I would highly recommend them to anyone in the future!
  
 
      Posted on Google  
   
   Manuel Rosales 
 
 
 
 Trustindex verifies that the original source of the review is Google. Best worker out there
  
 
      Posted on Google  
   
   Ottoniel Pena Avila 
 
 
 
 Trustindex verifies that the original source of the review is Google. Jesus @ AH Construction superintendent does an excellent job on managing the project from start to finish. As a sub contractor it always good experience working with our team. Excellent
  
 
      Posted on Google  
   
   EDDIE U 
 
 
 
 Trustindex verifies that the original source of the review is Google. +++AAAAA GREAT JOB
  
 
      Posted on Google  
   
   Annabelle Lee 
 
 
 
 Trustindex verifies that the original source of the review is Google. The construction team did an amazing job! Granite it’s still not all complete/-but what can be seen looks Amazing! Can’t wait to see the finished product in a few weeks! Will  post pics once all completed 👍🏼
  
 
      Posted on Google  
   
   VASA San Diego 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing company that works on integrity. The  Initial consultation was amazing. You can tell AH - Construction seasoning of years in the industry based on the way they managed customer service to coordination to breaking ground to fruition and completion of certificate of occupancy or approved permitting.

Definitely would recommend  AH-construction…It’s Worth a consultation with them before you start any type of project whether it’s at your commercial building or next tenant improvement or Residential project.

Start Planning Your ADU Project

Talk with AH Construction about your ADU construction goals and project requirements in San Diego County.

Frequently Asked Questions

What is an ADU?

An ADU (accessory dwelling unit) is a secondary, self-contained living unit on the same lot as a home, such as a detached backyard unit, an attached addition, or a garage conversion. ADUs are popular in San Diego for rental income and multigenerational living. AH Construction designs and builds ADUs throughout San Diego County.

Do I need permits to build an ADU in San Diego?

Yes, ADUs in San Diego require permits, and they must comply with California’s state ADU laws as well as local zoning and building codes. The good news is that state law has streamlined much of the approval process. AH Construction handles permit planning and coordination as part of the project.

How much does it cost to build an ADU in San Diego?

ADU costs in San Diego vary based on size, whether it’s detached or a garage conversion, finishes, and site conditions, so there is no single price. Garage conversions are typically less than detached new-build units. AH Construction provides a free estimate and conceptual floor plans for your property.

Can you convert a garage into an ADU?

Yes, converting an existing garage into an ADU is one of the most cost-effective ways to add a living unit, since it reuses the existing structure. It still requires permits and code-compliant systems. AH Construction handles garage-to-ADU conversions across San Diego County.

How long does it take to build an ADU?

An ADU in San Diego typically takes several months from design through completion, depending on the type, permitting, and site conditions. A clear pre-construction and permit plan keeps it on track. AH Construction manages the full design-build process.