Is a Deck Considered an Accessory Structure?

When considering home additions like decks, homeowners often wonder, "Is a deck considered an accessory structure?" The definition can vary slightly depending on your location and building codes, but generally, decks are considered accessory structures. Here, we'll delve into what this means, the implications, and how it affects your building and zoning permits.

Understanding accessory structures is key to understanding if a deck falls into this category. In broad terms, an accessory structure is a secondary structure on your property that supports the main dwelling. It's usually smaller and serves a specific purpose, such as providing additional living space or housing facilities.

The Legal Definition of Accessory Structures

The legal definition of accessory structures can vary. In many jurisdictions, it's defined as a structure that's incidental to the main use of the property and is subordinate in area, extent, or use to the principal building. Let's break down this definition.

Incidental and subordinate mean that the structure is secondary in importance to the main building. In the case of a deck, it's not the primary living space but rather an addition for outdoor living or entryway.

Size and Purpose

Accessory structures are usually smaller than the main building. The size limit can vary depending on your location, but it's typically capped at a certain square footage or percentage of the main building's size. decks, as long as they're within the allowed size limits, usually fall into this category.

The purpose of an accessory structure is also key. Decks serve a specific purpose - they provide additional living space, extend your home's functionality outdoors, and can increase your property's value. They don't change the main use of the property, which is residential, and thus serve as an accessory to it.

Examples of Accessory Structures

Apart from decks, other common examples of accessory structures include patios, sheds, pools, gazebos, and guesthouses. Each of these structures serves a specific purpose and supports the main residence without changing its primary function.

It's essential to note that while decks are typically considered accessory structures, their classification can change if they're used for commercial purposes, like a restaurant patio or a retail display area. In such cases, they might fall under different zoning rules.

Implications of a Deck Being an Accessory Structure

Now that we've established that decks are generally considered accessory structures, let's discuss the implications. Understanding these can help you navigate the building process more effectively.

Firstly, the building and zoning permits required for accessory structures are usually less complex and less expensive than those for additional dwelling units (ADUs) or standalone buildings. This means you might be able to build your deck faster and with fewer regulatory hurdles.

Building Permits

Building codes still apply to accessory structures, but the requirements are often less stringent. For instance, decks may not require the same level of structural reinforcement or fire-resistant materials as residential buildings. However, they must still meet safety standards, such as rail height and spacing requirements.

Specific permit requirements can vary greatly depending on your location and the size and complexity of your deck. Always check with your local building department to ensure you're meeting all the necessary codes and standards.

Zoning Permits

Zoning regulations also apply to accessory structures. They typically dictate the size, setbacks (how close a structure can be to property lines), and other aspects of your deck. In many cases, decks are allowed as-of-right, meaning they comply with existing zoning rules and don't require a special exception or variance.

However, if your deck is larger or more complex than allowed by zoning, you might need to apply for a variance. This involves presenting your case to a zoning board and demonstrating that your proposed deck won't adversely impact your neighbors or the community.

Taxes and Insurance

Lastly, knowing that your deck is an accessory structure can help you understand how it's treated for taxation and insurance purposes. Typically, accessory structures are taxed and insured as part of the primary residence. This means you won't pay additional property taxes on your deck, and it will usually be covered under your homeowners' insurance policy.

However, it's crucial to ensure your deck is adequately covered. Some policies may exclude or limit coverage for certain structures, like decks. Always review your policy and talk to your agent if you're unsure about the extent of your coverage.

In the end, understanding whether a deck is considered an accessory structure is more than a semantic exercise. It shapes the permitting process, inform your building choices, and affects how your deck is treated for tax and insurance purposes. Always check with your local building department to ensure you're following your area's specific rules and guidelines.