From Design to Move-In
In this step-by-step guide, we’ll walk you through exactly how it works so you can stop wondering “How do I buy an ADU?” and start creating the space you’ve been dreaming of.
The perfect extra space shouldn’t come pre-loaded with building stress.
Whether you need additional living space, a private home office, or a unit to generate rental income, an ADU or tiny home is the smartest way to expand your living space. But it’s easy to get overwhelmed by the permits, design choices, and construction process.
At Casita, we make the process effortless. We’ll guide you from your vision to move-in with expert design, seamless project management, and a team that actually listens. With custom-built ADUs and prefab options for a faster turnaround, we’ve got the options you need and the experience to handle all the details.
In this step-by-step guide, we’ll walk you through exactly how it works so you can stop wondering “How do I buy an ADU?” and start creating the space you’ve been dreaming of.
Building an ADU should be exciting. At Casita, we’re here to make sure it stays that way. We’ll guide you through every step, handling the details so you can focus on dreaming up your perfect space.
Here’s what to expect when you work with Casita.
Every great project starts with a conversation. So we get curious about your vision, your property, and how you want to use your new space. Whether you’re building a guest house, home office, or rental unit, we’ll ask you about your dream and then help you decide between a custom-build or a prefab.
By the end of this phase, you’ll have a clear vision of your ADU and the confidence that Casita is the right team to bring it to life.
Once we’ve mapped out your ideal space and have your ADU plans, we’ll refine the details and lock in your budget.
This step ensures you have full control over your project before we break ground.
Permits and regulations can be one of the trickiest parts of building an ADU, but we take care of everything.
With Casita, you don’t have to worry about red tape. We keep your project moving forward smoothly.
Now your ADU construction project can really begin! Your property is the job site so we'll keep communication clear and the project progressing.
You won’t have to chase contractors or manage schedules. We’ll take care of all that!
When your ADU project complete, we’ll walk you through the final details to ensure it’s perfect.
Your brand-new ADU is ready to enjoy, whether you’re welcoming guests, setting up your dream workspace, or earning rental income.
Building an ADU or tiny home is an investment, but that doesn’t mean it has to feel out of reach. With smart financing options, you can create the extra space you need without draining your savings.
At Casita, we guide you through every step of the financing process and connect you with trusted partners to find a solution that fits your budget. Here’s a breakdown of the most popular ways to finance your ADU.
Your home’s equity is one of the most powerful tools for financing an ADU.
Best For: Homeowners with substantial home equity who want predictable payments (home equity loan) or flexible access to funds (HELOC).
Why It Works: Lower interest rates than personal loans, plus the ability to repay over time.
With cash-out refinancing, you replace your existing mortgage with a new one at a higher amount, using the extra cash to fund your ADU.
Best For: Homeowners looking to lock in a new mortgage rate while pulling equity for their project.
Why It Works: A streamlined way to finance your ADU without taking out a separate loan.
A construction loan is a short-term loan designed specifically for building new structures, including ADUs. Once construction is complete, the loan can be converted into a traditional mortgage.
Best For: Homeowners who don’t have enough home equity but want a loan designed for building.
Why It Works: Funds are disbursed in stages, ensuring you only pay for what’s needed as the project progresses.
If you’re building a smaller ADU or tiny home, a personal loan can provide quick access to funds without tapping into home equity.
Best For: Homeowners who want fast approval and minimal paperwork.
Why It Works: No need to refinance or use your home as collateral.
What’s more important to you: speed and affordability, or a design that’s all your own? We offer both prefab and custom ADUs to create additional living space for you, so you never have to choose between quality and convenience.
Here’s how to decide which type of ADU is right for you.
Prefabricated ADUs are built off-site in a controlled environment and delivered to your property for final installation. This approach reduces construction time, minimizes weather delays, and streamlines the entire process.
A prefab ADU involves fewer details and is ideal for homeowners who want a high-quality, efficient solution without the wait of a traditional build.
If you have a specific vision or unique property constraints, a custom-built ADU gives you complete control over the design, layout, and finishes.
A custom ADU is best for homeowners who want a space that’s fully personalized and built to match their exact vision.
Still unsure which option is best? Here are a few key questions to help you decide:
Casita offers both prefab and custom solutions, so no matter what you choose, you’ll get a beautifully designed ADU that fits your needs and an experienced team to help you make an informed decision.
Schedule a consultation today to explore your options and start planning your perfect space.
Before starting your ADU or tiny home project, it’s natural to have questions. Here are the most common ones we hear from homeowners, along with clear, straightforward answers.
The size of your ADU depends on local zoning laws and your property’s available space. In most cases:
Casita’s team will help you navigate local regulations and determine what’s possible for your lot.
Yes. ADUs require permits and approvals from your city or county. Casita takes care of this process for you, ensuring your ADU meets all local requirements.
Yes! Many homeowners use ADUs for long-term rentals or short-term stays through platforms like Airbnb or VRBO. However, some cities have specific rules about rental durations and owner-occupancy requirements. We’ll help you understand what’s allowed in your area.
Costs vary depending on the size, materials, and type of build (prefab vs. custom). Here’s a rough breakdown:
Casita provides transparent pricing so you know exactly what to expect.
Timelines depend on whether you choose a prefab or custom ADU.
Casita streamlines the process to avoid delays and get you into your new space faster.
ADUs are permanent structures built on a foundation, fully connected to utilities, and legally classified as housing. Tiny homes can be on wheels or foundations and may have different zoning restrictions, especially if they are mobile. Casita specializes in both ADUs and tiny homes, helping you find the right solution for your needs.
Yes! Detached ADUs are separate units in your yard, attached ADUs are connected to your home, and converted spaces like garages, basements, or attics take what exists and transform it into additional living space.
We’ll help you decide which type works best for your property.
Every project is unique, and we’re here to help. Schedule a consultation today and let’s bring your ADU or tiny home to life.
Build a smarter, more flexible home that grows with you. From rental income opportunities and private retreats to extra space for family, secondary units can help your family stay close and up your property value. Casita makes bringing your dream to life stress-free from start to finish.
With expert design, seamless project management, and both prefab and custom options, we help you through the residential construction process. From the first consultation to move-in day, our team handles all the details so you can enjoy your new space!
Your perfect extra space is closer than you think. Let’s talk about what you envision and we’ll help you bring it to life!
