Looking to add an ADU (Accessory Dwelling Unit) to your property? You’ve come to the right place! John Christopher Construction are the experts in ADU construction and can help you with every step of the process, from designing your unit to getting it approved by the city. We also offer a wide range of other home improvement services, including home additions, garage conversions, wall framing, and more.

Call: (949) 216-5858 to get started

An ADU is a secondary dwelling unit that is attached or detached from a primary residence. They can be used for a variety of purposes, such as providing additional living space for family members or renters.

ADUs are subject to different regulations than other types of construction, so it’s essential to work with a builder who is familiar with the process. John Christopher Construction has extensive experience as ADU contractors and can help you navigate the approval process.

The benefits of adding an ADU

The benefits of adding an ADUThere are many benefits to adding an ADU to your property, including:

  • Increasing the value of your home: An ADU can add significant value to your property, making it an excellent investment.
  • Creating additional living space: An ADU can provide much-needed extra living space for family members or renters.
  • Generating income: Renting out an ADU is a great way to generate additional income.

John Christopher Construction can help you realize these benefits by building a high-quality unit that meets all city regulations and your desires.

Services John Christopher Construction Offer

In addition to ADU construction from the ground up, we offer a wide range of home improvement services, including:

  • Additions: We can help you design and build an addition to your existing home.
  • Garage conversions: We can convert your garage into additional living space or a rental unit.
  • Wall framing: We offer wall framing services for both new construction and remodeling projects.
  • Rough carpentry: We can handle all of your rough carpentry needs, from framing to trim work.

Choose John Christopher Construction

There are many reasons to choose John Christopher Construction for your home improvement needs, including:

Contact us today to learn more about how we can help you with your home expansion and improvement projects!

Wall Framing

ADU Wall FramingThis is the process of creating the basic structure or skeleton of your ADU. The frame will be made up of load-bearing walls, beams, and columns that support the weight of the floors and roof above. Your framing contractor will also install any windows and doors at this stage.

ADU Framing is one of the most critical steps in building an ADU because it sets the foundation for everything else that comes after. That’s why it’s essential to hire an experienced and licensed framing contractor who can get the job done right.

ADU Electrical

Once the framing is complete, your electrician will come in to install the wiring for your ADU. This includes running electrical lines from the main panel to any outlets, switches, and fixtures that you’ll need. They will also install any lighting that you’ve chosen for your space.

Electricity is a vital part of any ADU, so it’s essential to hire a licensed and insured electrician who knows what they’re doing. John Christopher Construction has a team of experienced electricians who can handle any job, big or small.

ADU Plumbing

ADU PlumbingAfter the electrician has finished their work, it’s time to bring in the plumber. They will install any pipes and fixtures that you need for your ADU, including toilets, sinks, showers, and tubs. If you’re planning on having a kitchen in your space, they will also hook up your appliances to the water lines.

Plumbing is another essential part of any ADU, so it’s necessary to hire a licensed and insured contractor who can get the job done right.


Heating, ventilation, and air conditioning. This is a critical system for any home but especially an ADU where people will be spending time indoors. The HVAC contractor you choose should be licensed and insured.

John Christopher Construction are experts at HVAC installation and repair. We have been servicing the Southern California area for over 20 years. Our team of skilled technicians is available to help you with your heating and cooling needs.

We offer a wide range of services, including furnace installation and repair, ductwork installation and repair, AC installation and repair, heat pump installation and repair, and more!

Backyard Homes

John Christopher Construction also specializes in building backyard homes. A backyard home is a small dwelling that is built on the same property as your primary residence. Backyard homes are becoming increasingly popular as people look for ways to downsize or add extra income streams. Building a backyard home can be a great way to invest in your property and create additional living space.

Guest House

A guest house is a great way to accommodate out-of-town guests, extended family, or even generate income by renting it out on Airbnb. Our ADU architects will help you design and build the perfect guest house for your needs. We have experience building all types of guest houses, from small studio apartments to large multi-bedroom homes.

Detached Garage Conversions

If you need extra living space, a garage conversion is a great solution. John Christopher Construction can build you a custom garage that is tailored to your specific needs. We offer a variety of sizes and styles to choose from, so we are sure to have something that will fit your budget and meet your needs.

In conclusion, when you are looking for a contractor to build your ADU, be sure to choose someone with experience and a good reputation. John Christopher Construction has been building ADUs in Southern California for over 20 years. We are a licensed and insured company that offers a wide range of services to meet your needs. Contact us today to get started on your project!