Skip to content
menu
close

Casitas & Guest Houses

In Scottsdale, Phoenix, & Paradise Valley

Elegant black and white kitchen renovation by Trinity Homes AZ featuring custom island in Scottsdale, AZ

Build a Space That Welcomes, Supports, and Inspires

If you're planning for extended stays, creating a space to host guests, or dreaming of a private retreat just steps from home, a custom casita or guest house is a smart and meaningful way to expand your property.

At Trinity Homes AZ, we build casitas and guest houses in Scottsdale, Paradise Valley, and surrounding areas with the same heart and attention to detail we give the main home — because every space we create should feel like it belongs.

We work closely with a trusted architect or designer to make sure your addition feels like a natural extension of your home, comfortable, welcoming, and built with care around how you plan to use it.

Renovated fireplace corner with arched adobe design in Phoenix by Trinity Homes
Full custom bathroom view with slatted wood wall and dual vanity by Trinity Homes AZ in Arcadia, AZ
Gourmet kitchen with gas cooktop and white island in Scottsdale AZ whole home renovation by Trinity Homes
Trinity Homes partial remodel in Phoenix featuring a modern living room with fireplace and large sectional
Functional laundry room with stylish storage and patterned tile flooring by Trinity Homes AZ, Scottsdale, AZ

Frequently Asked Questions About Casitas and Guest Homes by Homeowners Like you

How Big Can a Casita or Guest House Be in Scottsdale, AZ?expand_more

The size of your casita in Scottsdale depends on several factors, including your lot size, zoning regulations, and how your existing home is positioned on the property.

In some cases, homeowners can build up to 1,000 square feet or more, depending on the allowable floor-area ratio and setbacks.

If you envision a small guest suite or a fully equipped second dwelling, we’ll help you understand what’s possible and guide you through permitting to ensure everything stays compliant and feels like a natural extension of your home.

Can I Rent Out My Casita or Guest House?expand_more

In many neighborhoods, yes—but it’s important to check local and HOA regulations first.

Casitas and guest homes can offer flexible living arrangements, including long-term rentals or independent space for multigenerational families.

Trinity Homes AZ can help you design a layout that supports privacy, comfort, and code compliance.

If you’re considering building a casita or guest house with the goal of generating rental income, we’ll walk you through what’s needed to create a fully functional, independent living space that meets all city requirements.

How Much Does It Cost to Build a Casita or Guest House in Scottsdale, AZ?expand_more

Most casitas and guest houses in Scottsdale fall somewhere between $250,000 and $600,000+, and like every Trinity project, the final cost depends on your goals, the size of the space, and the finishes you choose.

A smaller suite with a bedroom and bath, outfitted with standard features, will land on the lower end. But if you're dreaming of a full guest retreat with a kitchen, custom cabinetry, high-end features, and luxury details, you’ll likely be on the higher end of the range.

We know this is a big investment, and that’s why we take the time to walk through everything with you. From the layout to the finishes, we’ll help you design a casita that fits your vision and your budget.

There will be no pressure or surprises, just honest conversations and a team that genuinely wants to build something that serves your family well.

What Is a Casita and Why Build One?

A casita (Spanish for “little house”) is a detached or semi-detached living space that typically includes a bedroom, bathroom, a kitchen area, and a living area. These versatile additions can serve many purposes, and with Trinity Homes AZ, each one is custom-designed to meet your lifestyle.

Common uses for casitas and guest houses include:

  • In-law suites that provide privacy and comfort for aging parents
  • Guest accommodations for visiting family and friends
  • Private retreats for hobbies, reading, or quiet reflection
  • Home offices or creative studios away from the main house
  • Rental income units (check local zoning and permitting regulations)
  • Wellness spaces like yoga rooms, massage studios, or saunas
Cozy modern bedroom with wood bed frame and fireplace by Trinity Homes in Gilbert, AZ remodel-1

Our most popular casita or guest home features:

select_check_boxPrivate outdoor living spaces
select_check_boxKitchenettes
select_check_boxAccessibility features
select_check_boxDining nooks
select_check_boxIndependent washer/dryer area
select_check_boxClever storage solutions

Our Design-Build Process

1 | Listen & Plan

We begin by learning about your vision, lifestyle, and goals for your home. Then we connect you with architects, engineers, and our in-house interior designer to shape the plan. Every detail is considered early on so we can build with confidence and clarity.

2 | Estimate & Prepare

While the design comes together, we gather trade bids and create a transparent, line-item estimate. You’ll know exactly where your investment is going, with no surprises. Once approved, we schedule work, order materials, and prep your site for a smooth start.

3 | Build & Support

From demo to final walkthrough, we manage every phase with precision and care. You’ll receive weekly updates, site walks, and open communication throughout construction. And even after move-in, we’re here with dedicated support and a clear warranty plan.

Explore Our Featured Projects

Why Choose Trinity Homes AZ for Your Casita or Guest House

Proven Track Record

If you’ve spent time in Scottsdale, chances are you’ve passed by a home we’ve had the privilege to build. Each one tells a story of dreams realized, details carefully crafted, and families finding their place. We’re proud of the work we’ve done, but even more proud of the relationships we’ve built along the way. For us, every home is personal.

Holistic Approach

We see building a home as a deeply creative process — like bringing a vision to life, one intentional detail at a time. That’s why we stay hands-on from the first idea to the final walkthrough. Every decision, every finish, every corner is shaped with care to reflect your story and our commitment to doing things the right way.

Client-First Philosophy

Many builders can create homes, but how many truly listen? At Trinity, we take pride in our client-centric approach. Your aspirations, nuances, and vision form the core of our approach.

Sustainable Building

We care about what we’re building and the impact it has. That’s why we use sustainable materials and smart, eco-friendly practices to create homes that feel good in every sense. For us, building a beautiful home also means building a better future.
Trinity Cost Guide

Remodeling & Custom Home Cost Guide

Whether it’s your plan or ours, we are committed to a remodeling or custom home building experience that you have never had before. You'll gain access to:

  • Itemized pricing
  • Features for your project
  • How to best allocate your budget
Receive Access Now double_arrow

Where We Work

We serve clients across a wide range of communities throughout Arizona. If you're nearby but don’t see your neighborhood listed, don't hesitate to reach out—we may still be able to help. We’re always happy to talk through your project to see if we’re the right fit.

Our Service Area

Contact Us double_arrow
Modern home exterior with white stucco and black columns in Scottsdale, AZ

What Our Clients Think

"Such a pleasure to partner with Trinity Homes AZ. Communication, quality of craftsmanship, and most importantly, on-time results are a must. They succeeded in these crucial and important requirements in building my home. Thank you, Trinity Homes AZ!"

Guy V.

Custom Home

Trinity Homes Phoenix kitchen renovation with marble island and custom hood range

What Our Clients Think

"I have worked with Trinity on multiple projects and highly recommend! I grew up in a construction family. My grandfather developed properties, my father designed and built high-end homes, and my 2 brothers are still in the construction business. Needless to say, I have extremely high standards when it comes to detail and the construction process. I also own a development and design company, and my first call is always to Slade and the Trinity team! They come in with strong estimates, and I appreciate their communication. They use a project management tool/site that is very user-friendly and everything is all in one place. They also update with pictures of the project often. Trinity is honest, full of integrity, and incredible at their craft! 5 stars all the way!"

Bonnie K.

Whole Home Remodel

Entertainment space with built-in bar in Scottsdale, AZ

What Our Clients Think

"Best renovation experience we've had yet! From start to finish, Trinity has been a great partner and I highly recommend them. When looking for a contractor, we got 3 bids for our whole house renovation. Trinity came in the middle of the bids price-wise, but we liked their systems (a building app where we could track daily job progress) and they do a lot of due diligence in pre-construction so there would be no surprises along the way. This work absolutely paid off and the job went smoothly, on budget, on schedule and we all still like each other! We would use them again without hesitation."

Katie D.

Whole Home Remodel + Addition

Remodeled bathroom with soaking tub and walk-in shower in Scottsdale, AZ

What Our Clients Think

"We recently completed our major remodel and addition project with Trinity Homes. We absolutely love the finished product. We met with several builders but felt that Slade was the most honest and trustworthy. WE enjoyed working with him and his team. A special thanks to Cristian and Kevin for managing our project."

Melissa L.

Remodel + Addition

Contemporary kitchen with large marble island and floor-to-ceiling windows by Trinity Homes in Paradise Valley

What Our Clients Think

"We worked with Trinity Homes AZ in 2023 & 2024 to renovate our Paradise Valley home. We took the house down to the studs and the end result was beautiful. We are so pleased with our new home! Trinity project management and communication are strong and workmanship has been excellent. Given that it was a renovation of an older home, the project was not without issues. However, Trinity worked diligently to resolve every issue that came up. Slade and his team are honest and fare and care deeply about each project Trinity takes on. We are very grateful. Thank you, Trinity team!"

Jennifer C.

Whole Home Remodel + Addition

Partner with a Builder Who Cares

Trinity Homes AZ

Casitas and guest homes are major opportunities to expand your living space, but with the added privacy and independence you need. Let's chat about your project!

Work with Us double_arrow