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How Much Does Building A Casita Cost?

How much money does it take to build a casita in Arizona?

The Cost to Build a Casita in Arizona

At Arizona Casita Builders, we understand that adding a casita to your property is a significant investment, and we are here to guide you through every step of the process. Building a casita, or a small guest house, in Arizona involves various factors that can influence the overall cost. In this comprehensive guide, we will break down these factors and explain why Arizona Casita Builders is the best choice for your casita construction needs.

Factors Affecting the Cost of Building a Casita

  1. Size and Design

    • Square Footage: Larger casitas naturally require more materials and labor, increasing the cost.
    • Design Complexity: Custom designs with unique architectural features, high-end finishes, and special amenities can also raise the price.
  2. Materials and Finishes

    • Construction Materials: The quality and type of materials used (e.g., wood, brick, stucco) impact the overall cost.
    • Interior Finishes: Choices for flooring, countertops, cabinetry, and fixtures play a significant role in the final price.
  3. Site Preparation

    • Land Grading: Preparing the site for construction, including clearing and leveling, can add to the costs.
    • Utilities Installation: Connecting the casita to existing utilities such as water, sewer, electricity, and gas can vary in complexity and expense.
  4. Permits and Regulations

    • Local Permits: Obtaining the necessary building permits and adhering to local building codes and zoning regulations is essential and can affect the timeline and cost.
    • HOA Requirements: If your property is within a Homeowners Association, additional guidelines and fees may apply.
  5. Labor Costs

    • Skilled Labor: The expertise and experience of the construction crew play a role in both the quality and cost of the build.
    • Project Management: Professional project management ensures timely completion and adherence to budget, influencing overall expenses.
  6. Additional Features

    • Green Building Options: Incorporating energy-efficient features such as solar panels, high-efficiency windows, and insulation can increase upfront costs but provide long-term savings.
    • Landscaping: Enhancing the exterior with landscaping, pathways, and outdoor lighting can add to the initial investment.


Why Choose Arizona Casita Builders?

  1. Expertise and Experience

    • With years of experience building casitas in Arizona, our team has the knowledge and skills to deliver exceptional results. We understand the unique challenges of the Arizona climate and landscape and tailor our approach accordingly.
  2. Quality Craftsmanship

    • We pride ourselves on our attention to detail and commitment to quality. From the foundation to the finishing touches, we use only the best materials and employ skilled craftsmen to ensure your casita is built to last.
  3. Transparent Pricing

    • We believe in transparency and honesty when it comes to pricing. Our detailed quotes break down all costs, so you know exactly what to expect. No hidden fees or surprises—just straightforward, fair pricing.
  4. Customized Solutions

    • Every casita we build is unique, designed to meet your specific needs and preferences. Whether you’re looking for a guest house, home office, or rental unit, we work with you to create a space that perfectly suits your lifestyle.
  5. Comprehensive Service

    • From initial consultation to final inspection, we manage every aspect of the project. Our team handles design, permits, construction, and finishing, ensuring a seamless and stress-free experience for you.
  6. Customer Satisfaction

    • Our clients are our top priority. We are dedicated to providing exceptional customer service and support throughout the entire construction process. Our numerous positive reviews and referrals are a testament to our commitment to excellence.


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Arizona's #1 ADU Builder

Build an ADU On Your Own Property & Save.

If you’re considering adding an Accessory Dwelling Unit to your property, contact Arizona Casita Builders today. We offer free consultations to discuss your vision, answer any questions, and provide a detailed estimate. Let us help you create a beautiful, functional ADU that enhances your property and meets your needs.

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No-obligation, No Cost Proposals & 3D renderings.

Utilizing industry leading design software, design concepts, and casita design standards partnered with our potential customer’s needs and wants for the new design of their casita, we can deliver out of this world 3D renderings. What are you waiting for? Reach out to our team of designers so we can show you exactly how your new casita will look, feel, and flow.

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Overview of Our Casita Build Process

Here is a rough idea of how the casita build will unfold in order of events.


Start things off by getting a quote. Our consultations & Proposals with 3d renderings are free.

Agreement On Price

We will work with you and your budget to build the casita you want at a price you can afford. We put everything into writing and provide you with a detailed agreement.

Engineered plans

We have your engineered plans prepared and summitted to the municipality for approval.

Permits & Fee's

We take care of all the details for you. No hassles or time consuming trips to city hall for you. We do it all.

Blue Stake Work Site

We prepare the work site and have blue stake visit and mark all underground utilities.

Termite Pre-Treatment

Ground will be pre-treated prior to construction and is included in pricing with a 3-year warranty


Excavate for foundation to plan bottom per architectural drawings.

Footings and Foundation

Install foundation per plans. Excavate as necessary, form and pour poured concrete footings per agreement.

Concrete Work

Poured concrete per agreement to include: 4” structural slab at a minimum of 3000 psi, footings with #4 rebar and fiber mesh.

Framing Your Casita

All lumber and framing materials sized and spaced per approved construction drawings. Materials, where applicable, to be kiln dried.

Roofing & Windows

Once framing is ready, we will install your roofing per engineered plans along with Low E Windows.

Electrical & Mechanical

Our team will install the mechanical components like A/C and all of the electrical installations


We install all of your plumbing and fixtures according to your casita build plans.

Insulation & Drywall

We install your insulation, (we can use foam or traditional insulation) along with installing drywall.

Cabinetry & Doors

We install custom cabinets and your selected appliances along with trim, doors and baseboards

Exterior & Interior Finishes

We create the look and feel you want by using the most innovative exterior finishes and high quality paint.

Clean up and Detail

We make sure our worksites are clean and everything is 100% during the final phase or our builds.

Customer Delivery

We perform the final walkthrough of your project and walk the project with you to go over each detail of the build.