As housing costs continue to rise, more homeowners are seeking creative ways to add space, flexibility, and even income to their properties. One solution that is gaining serious momentum is the ADU, or accessory dwelling unit. But once you start exploring ADUs, another question quickly follows: What is the best way to add one? For many homeowners, the answer may be simpler than expected: a park model.

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What Is an ADU?

An Accessory Dwelling Unit (ADU) is a smaller, secondary home located on the same property as a primary residence.

ADUs are also commonly called:

  • Casitas
  • Granny flats
  • In-law suites
  • Backyard homes

They can take several forms, including:

  • A detached unit in the backyard
  • An attached addition to the main home
  • A converted garage or similar space

No matter the form, the purpose is the same: to create a self-contained living space with its own kitchen, bathroom, and sleeping area.

Why ADUs Are So Popular Right Now

ADUs have grown in popularity for several reasons. They give homeowners a way to make better use of the property they already own without buying another home.

Homeowners often use ADUs for:

  • Housing aging parents or extended family
  • Giving adult children a more independent living space
  • Creating a guest house
  • Adding a rental unit for extra income
  • Building a private office or studio

In many cases, an ADU can also add value and flexibility to a property over time.

The Challenge With Traditional ADUs

While ADUs sound appealing, building one from the ground up is not always simple. A traditional ADU project can involve:

  • Architectural plans and design work
  • Permitting and zoning approvals
  • Contractors and construction timelines
  • Unexpected costs and delays

For many homeowners, what starts as a smart housing idea can quickly become a complicated and expensive construction project.

What Is a Park Model?

A park model is a small, factory-built home designed for long-term placement in one location. Most park models are under 400 square feet, but they are designed to make excellent use of that space. Although park models are technically classified as a type of recreational vehicle, many modern models look and feel much more like small homes.

They often include:

  • Full kitchens
  • Bathrooms
  • Living areas
  • Bedrooms or lofts
  • Smart storage and efficient layouts

Because they are factory-built, park models arrive largely complete, which can simplify the process compared to building an ADU from scratch.

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Why a Park Model Makes a Great ADU

1. Faster and Simpler Setup

One of the biggest advantages of a park model is that much of the construction is already done before it ever reaches your property. Instead of managing a full build from the ground up, homeowners can often move through the process more quickly and with fewer moving parts.

2. A More Cost-Effective Option

Traditional ADUs can become expensive fast. Between labor, materials, permits, and unexpected project changes, costs can rise quickly. A park model can often provide a more affordable path to adding a self-contained living space.

3. Designed for Small-Space Living

Park models are built specifically to make compact living comfortable. That means more practical layouts, smarter storage, and better use of every square foot. For homeowners who want a smaller living space that still feels functional, that is a major advantage.

4. Flexible Uses

A park model ADU can serve a wide range of purposes, including:

  • Guest housing
  • In-law living
  • A private office or studio
  • Long-term rental income
  • Housing for caregivers or family members

That flexibility is one reason more homeowners are taking a closer look at this option.

5. A Practical Alternative to Tiny Homes

Many people first think of tiny homes when they imagine a backyard ADU. But park models often provide a more practical alternative. They are built to established standards, designed for comfort, and usually offer a more predictable ownership experience than a custom tiny house.

Things to Consider Before Choosing a Park Model ADU

Even though park models can be a smart ADU solution, there are a few important factors to consider before moving forward.

  • Local zoning rules: Not every city or county allows park models as ADUs
  • Utility hookups: Water, sewer, and electrical connections are still required
  • Foundation requirements: Some jurisdictions may require permanent or semi-permanent placement
  • HOA restrictions: Neighborhood rules may limit what can be added to a property

As with any housing project, it is important to understand local requirements before making a final decision.

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The Bottom Line

ADUs are one of the most practical ways to add space, flexibility, and potential income to a property. But while building one from scratch can be time-consuming and expensive, a park model offers a streamlined alternative that can check many of the same boxes. If you are thinking about adding an ADU, it may be worth asking a simple question: Do you want to build one from the ground up, or would you rather start with something that is already built for efficient living?

For many homeowners, a park model may be the perfect answer.