General Contractor for Casita & ADU Builds in Temecula
An accessory dwelling unit is an independent living space located on the same lot as a single-family home. An ADU can either be attached to the home or be its own unit. An ADU can also be constructed from an existing structure on the property, such as a garage.
At Cal-Pacific Contracting, we have extensive experience with ADUs. We can help you with all phases of the project—from design through completion.
When it comes to designing your custom ADU, we will first want to understand who will be occupying the space, because this can affect design choices. For example, you may want to include a roll-in shower and wider doorways if the ADU will be for an elderly family member. For short-term guests, you may not need to include a full kitchen or a lot of storage space, but for long-term tenants you would. In rental units, you may also want to use more affordable, but still durable, materials.
During the construction phase of your ADU, we will use our industry-leading project management tools to ensure everything stays on schedule and within your budget. We will also keep you informed along the way so you always know where your project stands.

Affordable ADUs in Temecula with Boxabl
Cal-Pacific Contracting has partnered with Boxabl to provide our clients with an affordable ADU solution. Boxabl sells factory-built casitas that we install on your property. They have several different size options, all of which have generously sized living areas, full kitchens, and full bathrooms. Boxabl casitas feature 9.5” ceilings, plenty of storage, and come with full-sized appliances. They are seismic rated, energy rated, and exceed building code standards.
As a Boxable vendor, we have the ability to install their casitas as soon as six weeks from the order date. In addition, in most cities, Boxabl plans are pre-approved, which allows for a quick permitting process.
Why Choose Cal-Pacific Contracting as Your ADU Builder in Temecula
Custom
ADU Options
We offer custom ADU construction, as well as more affordable factory-built options for our Temecula clients.
Managed
On Time and On Budget
Our company is known for keeping projects on schedule and within their budgets. Project management is our specialty!
Committed
Quality Construction
ADUs and Casitas get the same attention to detail and commitment to quality as our larger construction projects.
“My philosophy is simple: be present, stay involved, and build every home like it’s your own. My personal dedication to quality and customer satisfaction sets the tone for the entire company.”
– Josh Marquard
Decades of Experience and Success
→ Design
Let us help you design an ADU to perfectly meet your needs—whether the space will be a rental unit or for private use.
→ Permit Acquisition
Cal-Pacific Contracting can handle the permitting process on your behalf, ensuring your ADU is up to code and adds value to your property.
→ Construction
We provide quality construction services and attention to detail, leading to outcomes that exceed expectations.
→ Project Management
All of our projects, including ADUs and casitas, are professionally managed, ensuring they finish on time and on budget.
Ensuring Client Satisfaction
Even though ADUs and casitas tend to be some of the smaller projects we take on as a general contracting company in Temecula, they still get our full attention and our same commitment to quality. When you work with Cal-Pacific Contracting for your ADU build, we will make sure your ADU, casita, tiny house, granny unit, or whatever you choose to call it turns out exactly how you had hoped!