How Long Does It Take to Build an ADU
The trend of building Accessory Dwelling Units (ADUs) has been on the rise in recent years. ADUs, also known as granny flats, are self-contained residential units that are built within or adjacent to a single-family home. They provide homeowners with a way to increase their housing options and generate extra income.
One common question that arises when considering building an ADU is how long it takes to complete the project. The answer depends on various factors such as size, location, design complexity, and construction method.
In this post, we will discuss these factors in detail and give you a general idea of the timeline for the ADU building process.
How Long It Takes to Build an ADU
On average, building an ADU can take anywhere from 6 to 12 months. This timeline includes all stages of the process, from initial planning and design to obtaining permits and completing construction. The design and permitting phase alone can take between 2 to 4 months, depending on the complexity of the project and local regulations.
Construction, which involves site preparation, building, and finishing, typically requires an additional 4 to 8 months. However, it's important to note that factors such as the availability of contractors, weather conditions, and the chosen building method can significantly influence this timeline. Proper planning and organization can help streamline the process and potentially reduce delays.
Factors Affecting the Timeline
Size
The size of your ADU is a crucial factor that will determine the timeline for construction. A smaller unit will inevitably take less time to build than a larger one. The average size of an ADU ranges from 300 to 800 square feet, with some being even smaller or larger.
If you opt for a prefabricated detached ADU, it may be quicker to construct as much of the work is done off-site. On the other hand, building a custom-designed ADU on-site can take longer due to the need for more detailed planning and construction.
Location
The location where you plan to build your ADU can also impact the timeline. In urban areas, where space is limited, construction can take longer due to zoning and permitting processes. In contrast, building in rural areas may be quicker as there are often fewer regulations and restrictions.
Design Complexity
The design of your ADU also plays a significant role in the timeline for construction. A simple and straightforward design will typically take less time to complete than one that is more complex.
For example, a single-story unit with a basic layout will be quicker to build than a two-story unit with additional features such as a rooftop deck or multiple rooms.
Construction Method
There are various methods of constructing an ADU, each with its own timeline. Traditional stick-built construction on-site may take 6-12 months, while modular construction may take 3-6 months. Prefabricated ADUs can be built off-site in a factory and then delivered to the site for installation, which can significantly reduce the timeline to 2-3 months.
Construction Timeline Breakdown
Based on the above factors, here is a general breakdown of the timeline for the entire process of building an ADU:
- Design Phase and Planning - This stage includes selecting a design, obtaining multiple permits, and finalizing all necessary plans and careful planning. The duration can range from 1-3 months depending on the complexity and location of your project. Submitting plans to both the city and HOA (if necessary) is something that would be done during this time.
- Site Preparation - This involves clearing the site, grading, and laying foundation if needed. Depending on the size and condition of the site, this can take 2-4 weeks. This does also depend on material lead times and when everything needed for the construction phase arrives to the site.
- Construction Phase - This is the actual building process and can take anywhere from 3 months for a prefabricated unit to 12 months for a custom-built one.
- Finishing Touches - Once the construction is completed, finishing touches such as painting, flooring, and fixtures are added. This stage can take 2-4 weeks.
- Review Process - After construction is completed, the ADU will need to undergo a final inspection and approval from local authorities. This process can take 2-4 weeks.
- Occupancy - Once all the necessary approvals are obtained, you can move into your new ADU and begin enjoying its benefits!
Overall, the timeline for building an ADU can range from 6 months to over a year. It is essential to keep in mind that unexpected delays or changes in plans may also impact the timeline. Therefore, it is crucial to work closely with your contractor for this complex process and to have open communication throughout the process.
Cost Breakdown
Apart from the timeline, it is also essential to consider the cost of building an ADU. The total cost will depend on factors such as size, location, design complexity, and materials used. On average, an ADU can cost anywhere from $50,000 to $200,000 or more.
Some common expenses associated with building an ADU include:
- Design fees
- Permitting fees
- Site preparation costs
- Construction costs
- Finishing touches and furnishings
It is crucial to factor in all these expenses when planning your budget for building an ADU.
Skyline Build & Design
Skyline Build & Design specializes in providing comprehensive solutions for all your ADU needs. With years of experience in the industry, our team is dedicated to delivering exceptional service at every stage of the process. From initial consultation and design to securing permits and executing flawless construction, we handle every detail to ensure your project is completed on time and within budget.
Our expert team takes pride in helping clients build high-quality, personalized ADUs that meet their unique needs and vision. Whether you're looking for additional rental income, a home office, or extra living space for your family, Skyline Build & Design is here to bring your dream ADU to life.
Trust us to create a seamless, stress-free experience while delivering outstanding results. Contact us today to get started on your ADU project!
Frequently Asked How Long Does it Take to Build an ADU Questions
Can I build an ADU in any location?
It is essential to check the zoning and regulations of your local area before planning to build an ADU. Some areas may have specific restrictions, necessary permits and building codes when it comes to building ADUs. It's best to consult with a professional contractor or your local government for guidance.
Will building an ADU increase my property taxes?
Adding an ADU may affect your property taxes, but it will depend on state and county laws. In some areas, adding an ADU may not impact your property taxes, but in others, they can significantly increase. This is something to consider when planning for the cost of building an ADU.
What is the typical size of an ADU?
The average size of an ADU ranges from 300-800 square feet but can vary depending on the needs and preferences of the homeowner.
How can I speed up the ADU construction process?
Choosing a prefabricated or modular construction method can significantly reduce the timeline for building an ADU. It is also important to work closely with your contractor and have open communication throughout the project to avoid delays.
How do I know If I need an ADU?
If you are looking for additional living space or extra income, an ADU may be a good option for you. It can also be useful for multi-generational families who want to live close together but still have some separation. Consulting with a reputable contractor and discussing your specific needs can help determine if an ADU is right for you.
Conclusion
In conclusion, the timeline for building an ADU can vary depending on several factors such as size, location, design complexity, and construction method. It is essential to work closely with a reputable contractor and have realistic expectations about the timeframe.
With proper planning and efficient execution, you can have your dream ADU built in no time. At Skyline Build & Design, we are committed to making the process as smooth and timely as possible for our clients.
Let us help you create a beautiful and functional ADU that meets all your needs and adds value to your property. Get in touch with us today to learn more about our services and start your ADU journey!
