Pool Houses & Accessory Structures Design

Pool Houses & Accessory Structures

Custom detached structure design and engineering for beautiful, functional backyard spaces.

20+ Years Exp.
100+ Engineered & built homes
3 States
Licensed & Insured

One Team, Start to Finish

Design, engineering, and construction under a single contract. No finger-pointing, no miscommunication.

Faster Timelines

Overlapping design and build phases means your project gets done sooner — without sacrificing quality.

No Surprise Change Orders

Because the people designing your plans are the ones building them, the budget stays honest from day one.

About This Service

Pool Houses & Accessory Structures

Explore custom pool houses, guest casitas, detached garages, studios, and accessory structures designed for function, beauty, and long-term value in Utah and Idaho.

  • Function
  • Beauty
  • Long-term Value In Utah
  • Idaho
  • Beautiful
  • Functional Backyard Spaces
Discuss Your Project
Pool Houses & Accessory Structures Design
How It Works

Three steps from idea to reality.

01

Consultation

Tell us about your project — timeline, budget, and vision. We'll assess feasibility and outline a clear path forward.

02

Design & Engineering

Our in-house architects and engineers develop plans optimized for constructability, code compliance, and your budget.

03

Build

The same team that designed your plans builds your project — ensuring nothing gets lost in translation.

Pool houses & accessory structures add flexible, high-value space to your property without changing the footprint of your main home. Platypus Design and Construction provides residential design and engineering services for detached structures that improve comfort, function, storage, and outdoor living. From elegant pool houses to guest casitas, hobby buildings, detached garages, and custom backyard structures, we help homeowners in Utah and Idaho create spaces that are practical, beautiful, and built with long-term performance in mind.

Every property is different, and the best accessory structures are designed to fit the way you live. Our team focuses on thoughtful planning, code-conscious design, and efficient engineering so your new structure works with your home, your site, and your future goals. Whether you want a pool house for entertaining, a private retreat for guests, or a detached building that expands your usable square footage, we create designs that support both lifestyle and property value.

Custom Pool Houses & Accessory Structures Designed for the Way You Live

A well-designed detached structure can do much more than add visual appeal. It can create a place to gather, provide privacy for guests, organize storage, support hobbies, or improve how you use your outdoor space throughout the year. Our pool houses & accessory structures are designed to complement your home while serving a clear purpose.

We work with homeowners who want to add features such as:

  • Pool houses with lounges, changing rooms, bathrooms, and storage
  • Guest houses and casitas
  • Detached garages and workshops
  • Backyard studios, offices, and hobby spaces
  • Accessory dwelling support structures
  • Outdoor entertainment pavilions and covered gathering spaces
  • Fitness rooms, recreation spaces, and multi-use detached buildings

Whether your priority is entertaining, convenience, privacy, or resale value, we tailor each design to your property and goals.

What Is an Accessory Structure?

An accessory structure is a detached building on your residential property that supports the main home. These structures can serve many purposes, including recreation, storage, guest accommodations, vehicle protection, or outdoor living. In many cases, a thoughtfully designed accessory structure can make your property more functional and enjoyable while helping it stand out in the market.

Because these buildings often involve zoning requirements, structural considerations, utility planning, setbacks, and local code review, professional design and engineering is an important part of the process. Our team helps homeowners move forward with confidence by developing plans that are clear, coordinated, and aligned with applicable project requirements.

Our Residential Design and Engineering Process

Successful pool houses & accessory structures begin with smart planning. We take the time to understand how you want to use the space, where it should sit on the property, and how it should relate to your existing home and landscape. From there, we develop a design approach that balances aesthetics, usability, structural integrity, and budget awareness.

Our process typically includes:

  • Discovery conversations about your goals, style, and intended use
  • Site and placement considerations
  • Concept development and layout planning
  • Architectural design tailored to your home and property
  • Structural engineering coordination
  • Preparation of plans for review, permitting, and construction

By combining design and engineering insight, we help reduce surprises and create a smoother path from idea to build-ready plans.

Pool House Design Options That Add Comfort and Convenience

Pool houses are one of the most versatile additions a homeowner can make to an outdoor living area. They can be simple and efficient or fully upgraded to serve as a luxury extension of the backyard. The right design depends on how you want the structure to function day to day.

Popular pool house features include:

  • Bathrooms and changing rooms
  • Towel and equipment storage
  • Covered patios and shaded seating areas
  • Kitchenettes or serving counters
  • Indoor lounge areas
  • Laundry features
  • Mechanical space for pool-related systems
  • Integrated indoor-outdoor entertaining areas

We design pool houses that feel intentional and cohesive, not like an afterthought. The result is a detached structure that supports your backyard lifestyle while enhancing the overall architecture of your property.

Accessory Structures That Complement Your Home

Detached structures should feel connected to the home, even when they serve a different purpose. We pay close attention to rooflines, materials, proportions, massing, and architectural details so the new building fits naturally on your property. This design continuity can make a major difference in curb appeal, usability, and long-term value.

We also consider practical details such as circulation, privacy, sun exposure, access, drainage, and how the structure interacts with driveways, patios, pools, landscaping, and neighboring properties. These decisions help ensure the finished design is not only attractive, but highly functional.

Designed for Utah and Idaho Properties

Designing pool houses & accessory structures in Utah and Idaho requires attention to local conditions. Climate, snow loads, site grading, jurisdictional standards, and utility access can all affect design and engineering decisions. Our team understands the regional considerations that shape residential projects and develops plans with those realities in mind.

Whether your home is in a suburban neighborhood, a custom residential development, or a larger rural property, we create detached structure designs that respond to the setting and support lasting performance.

Why Homeowners Invest in Pool Houses & Accessory Structures

Homeowners choose detached structures for many reasons, but the strongest projects usually solve a specific need while improving the overall experience of the property. A pool house can simplify entertaining. A guest house can create privacy and flexibility. A detached studio can give you dedicated space to work or create. A workshop or garage can improve organization and storage.

Benefits of a professionally designed accessory structure may include:

  • Expanded usable living space
  • Improved outdoor functionality
  • Greater privacy for guests or family members
  • Better organization and storage capacity
  • Enhanced architectural appeal
  • Increased property value and marketability
  • More flexible use of your lot

When designed well, these structures become an integrated part of the property rather than a separate add-on.

Engineering Support for Detached Residential Structures

Engineering plays a key role in the success of detached building projects. Structural requirements can vary based on size, use, roof design, openings, soil conditions, and local code expectations. Our design and engineering approach helps ensure your plans account for real-world demands while supporting efficient construction.

By coordinating design intent with engineering needs early in the process, we help homeowners avoid common issues that can cause delays or revisions later. This integrated approach is especially valuable for custom structures with unique layouts, larger spans, or elevated finish expectations.

Create a Backyard Structure That Works for Today and Tomorrow

The best pool houses & accessory structures are designed with both immediate use and future flexibility in mind. Your needs may change over time, and a smart design can help the space remain useful for years to come. A pool house may later support guest stays. A detached studio may become a fitness room or office. A pavilion may anchor larger entertaining spaces as your property evolves.

At Platypus Design and Construction, we design detached residential structures that enhance usability, elevate appearance, and add meaningful value. If you are planning a pool house, guest space, detached garage, or other accessory building in Utah or Idaho, our team can help you move forward with a design that is thoughtful, functional, and ready for the next step.

"From our very first meeting, the Platypus team felt different. They didn't just design our home — they engineered every detail and built it themselves. No miscommunication, no finger-pointing. Just one team that truly cared about our vision."
Sarah & Mike R. Custom Home — Eagle Mountain, UT

Let's build something great together.

Whether you have full plans or just an idea, our team will guide you from concept to completion.

What Our Clients Say

Real Projects. Real People.
Real Results.

We let our work — and our clients — speak for us. Here's what homeowners and business owners have to say about working with Platypus Design & Construction.

"I am more than satisfied with the excellent work Platypus Design and Construction recently did for us. After a windstorm blew down a portion of our vinyl fence, he not only repaired the fence but saw what needed to be done to secure it so it would withstand future storms. He performed the work quickly, efficiently, and skillfully. The result was excellent and the cost was reasonable. We also appreciate the clarity and friendliness of all his communications and interactions with us. Overall, he did a superb job, even exceeding our expectations."
Bruce Y. Fence Repair
"McKay and his team have done multiple TI buildout projects for me and my Scenthound locations. They have been great to work with through everything to help me get a mix of great pricing, service, and overall product delivery. They are honest with their work and will ensure they take care of you as their client. Further, being able to use them for both design drawing, engineering, and the project buildout and management has saved me tens of thousands of dollars and weeks of time during my buildouts to have it all done with them in house. Platypus will continue to be my go-to for all my future commercial construction needs."
Spencer S. Commercial Build-Out
"We had an outstanding experience working with McKay Harper and Platypus Construction on a garage addition and a custom pergola over our patio. From the beginning, McKay demonstrated a high level of craftsmanship and attention to detail - he was able to match the existing architecture of our home seamlessly, to the point that the addition looks like it has always been there. It was a unique design challenge, and McKay used thoughtful engineering to create a beautiful freestanding structure that feels both solid and elegant. His pricing was very fair, and we would give McKay and Platypus Construction our highest recommendation and would absolutely work with him again."
Matt W. Garage Addition & Pergola

Ready to become our next success story?

Join the growing list of homeowners and businesses who chose one team for design, engineering, and construction.

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Get In Touch

Let's Build Something
Together.

Whether you're planning a custom home, a commercial build-out, or just have questions — we'd love to hear from you. Tell us about your project and we'll reach out within one business day.

Licensed In Utah · Idaho · Arizona
Licensed & Insured
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Utah (385) 314-4443