Phoenix:
Flagstaff & Northern AZ:
Phoenix:
Flagstaff & Northern AZ:
Residential
Casitas, guest houses, and accessory dwelling units (ADUs) are a smart way to add functional, private living space to your property. Whether you’re hosting family, accommodating long-term guests, or creating a potential rental unit, these structures offer flexibility and lasting value. At Miko LLC, we specialize in custom-built guest spaces across Phoenix — including detached casitas and fully equipped ADUs. From initial design to final construction, we handle every detail to deliver a space that’s comfortable, code-compliant, and tailored to your needs.
In Business
On Google (34 Reviews)
Accredited Business
2023 & 2026
Licensed · Bonded · Insured
Looking to add a private, flexible living space to your property? Whether it’s for family, guests, or rental income, custom guest houses and accessory dwelling units (ADUs) are a smart solution. Miko LLC designs and builds fully customized structures that match your home’s style and meet your functional needs.
From casitas and backyard studios to full ADUs with kitchens and bathrooms, we manage every phase — design, permitting, and construction. Our team ensures your new space is code-compliant, efficient, and built to last.
If you’re in the Phoenix area and ready to expand your living options, we’re here to help you bring your vision to life.
A standalone structure, often called a casita or guest house, located in the backyard or on another part of the lot.
An addition that connects to the main home but has a separate entrance and full living amenities.
An existing garage transformed into a livable unit with insulation, plumbing, and full interior build-out.
A section of the main house, such as a basement or unused space, converted into a private unit with separate access.
Process
1
Provided at no charge. We learn about your goals, vision, priorities, timeline, and
investment expectations.
2
Once we determine the project is a good fit, the next step is a design and planning investment so we can begin developing the project before construction starts.
3
We create detailed 3D renderings of your space, allowing you to see and refine the design before construction begins. This helps you make confident decisions about layout, finishes, and overall look.
4
Select finishes and products with professional guidance.
5
When required, we coordinate these services for you.
6
Pricing is based on finalized plans and selections – not assumptions.
7
Review everything before construction begins so you know exactly what to expect.
From casitas to full accessory dwelling units, a backyard build is one of the smartest investments a Phoenix homeowner can make. Here’s why:
Every homeowner has a different vision for their casita, and Miko LLC builds them all. Popular ways Phoenix homeowners use their guest house or ADU include:
GUEST HOUSE
ADDITION
CONVERSION
We are not only trusted by our clients, but also certified and licensed. Our qualifications reflect our commitment to quality, safety, and professional standards in every project we take on.
ADU stands for Accessory Dwelling Unit — a secondary residential space located on the same property as a main home. ADUs can be detached (like a backyard casita), attached (such as a converted garage or basement), or even part of the main house with a separate entrance.
To qualify as an ADU, the space typically must include its own kitchen, bathroom, living area, and entrance, making it a fully independent living unit. Homeowners decide to build ADUs for various of reasons, such as provide housing for parents, young adult children, extended family, long-term guests, or as rental units to generate additional income.
In Phoenix and surrounding areas, ADUs are growing in popularity due to their flexibility, potential for passive income, and ability to add usable space without moving. Miko LLC specializes in designing and building ADUs that are fully permitted, functional, and tailored to your property.
From design and permitting to final construction, building an ADU typically takes 4 to 8 months, depending on the scope, permitting timelines, and site conditions. We provide a clear schedule during the planning phase.
Consider how the space will be used (guests, rental, office), available space on your lot, access and privacy, required utilities, and how the new structure will blend with your existing home. Budget, zoning regulations, and long-term goals are also key factors.
Yes. ADUs require building permits and must meet local zoning, setback, utility, and safety requirements. Miko LLC handles the entire permitting process to ensure compliance from the start.
Yes, you can rent your ADU in Arizona, including in cities like Phoenix and Scottsdale, as long as you comply with local zoning laws and building codes. Many municipalities allow long-term rentals by right, but there may be restrictions on short-term rentals depending on your location. Your ADU must meet all requirements for safety, occupancy, and permitting. Before renting, it’s important to verify local ordinances and ensure your unit is fully legal and up to code. Miko LLC can help guide you through the process to make sure everything is compliant from day one.
Most cities limit ADU size based on your lot size and zoning. For example, detached ADUs in Phoenix are generally limited to 1,000 square feet or a percentage of the main home’s size. We review all local codes as part of the planning process.
An ADU is a fully independent, legally recognized dwelling with a kitchen, bathroom, and separate entrance. A casita or guest house may not include a full kitchen or meet all ADU requirements, depending on local code. In many cases, they overlap and can be considered ADUs if built to code.
Our Design & Planning Investment allows us to fully develop your project before construction begins. This includes design development, product selections, pricing, and scope creation so you can make informed decisions with confidence.
Accurate pricing depends on design decisions, material selections, project scope, and structural requirements. Rather than providing rough estimates that can change significantly, we develop a complete plan first so pricing is based on real decisions—not assumptions.
Once the design, selections, scope, and price have been finalized, we’ll review everything together and provide a clear path toward construction. At that point, you’ll have the information needed to make an informed decision about moving forward.
