Thinking about building an ADU on your property?
Would you like to convert your garage into an ADU (Accessory Dwelling Unit)? Why waste valuable space when you can turn it into a livable apartment? How to find the best ADU builder near me?
The term “Accessory Dwelling Unit” refers to a separate living space added to a single-family home. It is also known as an in-law suite, mother-in-law unit, or granny flat. Whatever you call it, there’s no denying that an ADU can be a valuable addition to your property.
An ADU can be many things, and it does not always have to be an external structure in the backyard. Basements, attics, and even portions of your home can be converted into accessory dwelling units. By doing so, you not only save money on new construction, but it is an excellent way of earning passive income and increasing the overall value of your property.
ADU Benefits:
- The conversion of an unused garage to an ADU is a win-win situation that enhances the value of your home while providing you with extra living space to use however you choose. The ADU process is easier than you think!! Here at Y9 Construction, we provide complete ADU solutions. From design to permitting to construction, our team handles it all. Just sit back and relax, and we’ll hand you the keys in no time. Property owners and homeowners build ADUs for several reasons, including:
- Creating private living spaces for young adults, elderly parents, or extended family.
- In order to generate rental income.
- To maximize the resale value and equity of a property.
- ADUs could serve as the ultimate home office, workout space, or any other purpose you could think of.

How long does it take to build an ADU in San Diego, CA?
Undoubtedly, ADU is a wise investment, especially if you intend to live in the house for a long time. From our experience as a local ADU builder, depending on the client’s requirements and the project’s complexity, an average San Diego ADU project can take three to five months to complete. In contrast, more complex projects can take more than a year.
What can I use my ADU for? ADU Usages Ideas:
ADUs come in a variety of styles, sizes, and purposes. That includes a rental Unit, a cozy guesthouse, a kids room, a home office, a stylish lounge with a bar, a man cave, an artist’s studio, a teenage den, a practical utility room, a cinema room, a games room, romantic retreat, spa, relaxing living room, gym, micro-home, workshop, music studio and almost anything you can think of.

Planning an ADU in San Diego? Here are some questions to consider:
- Are you converting existing space into the ADU, or will it be a new building? Make sure you have the answer to this before you start designing your ADU. Many significant decisions will be based on it, and it will, of course, have a substantial impact on the project’s cost and timeline.
- What will you be using the ADU for? The majority of the ADUs we have constructed for our clients are used as office space, recreational rooms, personal living quarters, and rental units. Nevertheless, there is no limit to what you may do with the area, and an ADU can be almost whatever you can dream of.
- Are there different types of ADUs? Yes, of course! While the name serves to describe this type of construction, there are a variety of ways in which an ADU can be developed. The most popular types of ADUs are Detached new construction (which is usually the most expensive, by the way), garage conversion, bump out, basement conversion, attic conversion, and Interior ADUs. You can learn more about the different types of ADUs here.
- Is your property eligible for building an ADU? Before you start designing an ADU, double-check that your property meets local development requirements.
- Do I need a building permit for an ADU? Yes, it is necessary to obtain a building permit in order to ensure the new area meets all zoning, health, and safety codes.
- What size ADU do you need? Size does not always indicate quality. According to state data, new ADUs in California are an average of 615 square feet. Depending on the intended use, the average-sized ADUs we build for our clients range from 500 to 800 square feet.
- Is additional parking space required for a new ADU? The property is typically required to have one parking space unless an exemption applies. A parking space is essential to consider, especially if you’re thinking about renting out the unit, as accessible parking is among the most important facilities for tenants, and failing to provide one can lead to frustrations and disagreements between landlords and tenants.
- Can I have separate utility meters for the ADU? Yes, and that would be a great idea! Particularly if you intend to use the additional space as an office or a rental unit and therefore require separate utility bills. It is doable to have separate meters for water and electricity but keep in mind it would cost more to install those.
- What appliances should I include in the ADU? A refrigerator, a range, and most likely a microwave are essential in any kitchen. It is advisable to choose appliances that are smaller than the standard size used in a house. If you have the extra space, you should consider including a spot for a washer and dryer as well as a dishwasher.
- If I build an ADU, my property taxes will go up? Yes, the tax assessors will most likely increase the overall value of your property, but they will not reassess your current home.
- Should I design an ADU with privacy in mind? It genuinely depends on how you intend to use the area. Of course, if you’re building it for the purpose of functioning as a yoga room or gym, no special seclusion is required, but if you’re planning to rent it out in the future, the lack of privacy could be a dealbreaker. In any event, it may be wiser to build the ADU with privacy in mind in case its purpose changes in the future.
- How to budget ADU? The cost of building an ADU depends on a number of factors, including whether you’re renovating an existing structure or starting from scratch. A skilled ADU builder can guide you in the process of designing and building your ADU while staying within your budget as much as possible.
- In case you decide to rent it out, are you prepared to take on the role of a landlord? Being a landlord is not for the faint of heart. It’s like running any other business, and you may encounter unpleasant situations from time to time. Therefore the ability to remain calm is a skill you will need. Make sure you know what is expected of you legally and professionally, and be honest about your ability to be a good landlord before deciding to take this route.
LET US HELP YOU CREATE AN ADU THAT FITS YOUR SPECIFIC NEEDS!

Plans & Permits
We help with custom design, architectural plans, 3D renderings, and permits.

Schedule & Management
Work with a dedicated project manager to coordinate the work schedule and all project details.

Design & Construction
We provide weekly updates and ensure that everything is done to the highest quality standards.

Completion & Inspections
Upon completion of the project, we conduct a comprehensive quality control walk-through.
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ADU Builder San Diego - Affordable and Reliable
The key to a successful ADU design is combining all the elements of functionality, desires, and legality into one magnificent plan. We understand that ADU regulations may seem to be complex, but don’t you worry. As an experienced design-build firm, we are well-prepared to simplify the process for you by handling all aspects of the project, including design, permits, and construction. Whether you want to convert that area into a home office, a kids’ playroom, a gym, or even a home theater, Y9 Construction has the experience and knowledge to get the job done

Ready to Discuss Your Project With Us?
After researching and studying the subject, are you ready to start your ADU project? Then Y9 Construction is the right company for you to turn to. Please complete the form below to schedule a free consultation with us, and one of our team members will respond as soon as possible.