Do I Need a Permit to Build a Shed in Colorado?

A Home Rule State with No Single Code

Colorado approaches building codes differently than most states. As a home rule state, Colorado gives cities and counties the authority to adopt and enforce their own building codes rather than mandating a single statewide standard for residential construction. The Colorado Division of Housing oversees manufactured homes, but for site-built houses and accessory structures like sheds, the rules are set locally.

In practice, most Colorado jurisdictions adopt a version of the International Residential Code (IRC) with local amendments. The IRC's standard exemption for one-story detached accessory structures under 200 square feet is widely followed across the state, making it the most common threshold. But some communities — notably Denver and Boulder County — add requirements or use different thresholds that are worth knowing about.

The home rule system also means that regional building departments, rather than individual cities, sometimes handle permits. The Pikes Peak Regional Building Department (PPRBD), for example, serves Colorado Springs, Fountain, Manitou Springs, Monument, and parts of El Paso and Teller counties. Understanding which jurisdiction processes your permit is the first step in any Colorado shed project.

For a broader look at how Colorado compares nationally, see our national guide to shed permits.

How Five Colorado Cities Handle Shed Permits

Denver: Zoning Permit for Every Shed

Denver stands out because all sheds require a zoning permit, regardless of size. This is a city-wide requirement that applies even to small storage sheds that are exempt from a building permit. A building permit is additionally required for any shed that is over 200 square feet in floor area or over 8 feet tall. Some projects may also need a Sewer Use and Drainage Permit (SUDP) to address stormwater runoff.

Denver's Community Planning and Development department processes shed permits through its e-permits portal. Each residential property can have one storage shed, one accessory structure, and one garage. A storage shed up to 150 square feet requires a Zoning Site Plan review. Standard permit reviews take 2–4 weeks, though complete applications uploaded with all required documents move faster.

Denver's zoning code also imposes setback requirements that vary by zone district. In most single-unit districts, sheds must be located in the rear yard and meet side and rear setback minimums. The shed cannot exceed the height of the primary structure.

Colorado Springs: Regional Approach Through Pikes Peak

The Pikes Peak Regional Building Department (PPRBD) handles building permits for Colorado Springs and surrounding communities. Under the PPRBD's adopted code, one-story detached accessory structures under 200 square feet that are supported directly on grade are exempt from a building permit. The city's zoning code adds a layer: in Colorado Springs, accessory structures 125 square feet or larger require zoning approval even if they don't need a building permit.

Colorado Springs limits accessory structure floor area to the footprint of the primary structure. Sheds are not permitted in front yards, and all accessory structures must meet the setback requirements for their zone district. Properties in the Hillside Overlay, Streamside Overlay, or Historic Preservation Overlay face additional review requirements.

Aurora: Standard 200-Square-Foot Exemption

Aurora follows the standard IRC-based exemption. One-story detached sheds under 200 square feet on grade don't need a building permit. Larger sheds require a building permit with valuation-based fees typically running $75–$200. Aurora's review process takes 1–3 weeks for standard residential accessory structures.

Fort Collins: Efficient Process for Small Projects

Fort Collins exempts one-story sheds under 200 square feet from the building permit requirement when the shed is on grade and has no utility connections. The city's building department processes shed permits efficiently, with straightforward projects reviewed in 5–10 business days. Fort Collins requires all sheds to meet local setback and lot coverage requirements, and the shed must be compatible with the primary residence.

Boulder County: Stricter at 120 Square Feet

Boulder and unincorporated Boulder County use one of the state's stricter thresholds. A building permit is not required for one-story detached accessory structures used as storage sheds, playhouses, greenhouses, or chicken coops, provided the floor area does not exceed 120 square feet, the height does not exceed 12 feet, the structure has no utilities, and it doesn't violate conditions of any existing land use approval. The number of permit-exempt structures per parcel depends on parcel size — one on parcels under half an acre, two on parcels from half an acre to two acres, and three on parcels over two acres.

Snow Load: Colorado's Defining Structural Challenge

Snow load is the single most important structural factor for sheds in Colorado, and the requirements vary more dramatically within this state than in almost any other.

On the Front Range — Denver, Colorado Springs, Fort Collins, Boulder — ground snow loads range from about 25 to 40 pounds per square foot (psf). These are manageable with standard prescriptive roof framing from the IRC. A typical 2x6 rafter at 24 inches on center can handle these loads on most shed spans.

Move into the foothills and mountain communities and the numbers jump sharply. Jefferson County's mountain areas see 50–80 psf. Summit County, Eagle County, and Grand County routinely require designs for 80–120 psf or more. Park County, at elevations above 9,000 feet, requires all plans to be stamped by a Colorado-registered structural engineer because prescriptive code tables simply don't cover loads that high.

The result is that a shed design that works in Denver may be structurally inadequate in a mountain community 60 miles away. If you're buying a pre-built shed from a retailer, verify that the roof framing can support the snow load for your specific location. Many manufacturers build to the IRC's default 30 psf, which is below what much of Colorado requires.

Roof slope helps shed snow load — steeper roofs are allowed reduced design loads because snow slides off rather than accumulating. A 7:12 or steeper pitch can qualify for significant load reductions, which is one reason many Colorado sheds have steep gable roofs.

Wind Load and Foundation Requirements

Colorado's wind conditions create two distinct design challenges. The eastern plains from Greeley to the Kansas border experience sustained high winds with gusts regularly exceeding 70 mph. The mountain passes and ridgelines funnel winds to extreme speeds — Boulder's Chinook winds and the gusts through mountain corridors can exceed 100 mph.

Most Front Range communities require wind design for 90–110 mph three-second gusts, depending on the exposure category. Park County and other mountain areas require 110 mph design wind speeds. These requirements translate directly into anchoring specifications: every shed must be secured against lateral movement and uplift.

For small sheds under 200 square feet on the Front Range, standard anchoring approaches work well: concrete pier blocks, auger-style ground anchors, or anchor bolts into a concrete slab. In mountain communities, the requirements are more stringent. Park County requires sheds under 200 square feet to be attached to minimum 8-inch caissons drilled 24 inches into undisturbed soil. Sheds over 200 square feet need a permanent foundation with monolithic or spread footings and stem walls, or engineered piers.

Frost depth in Colorado ranges from about 30 inches on the eastern plains to 48 inches or more in the mountains. For sheds that need full foundations, the footings must extend below this depth.

Pre-Built Sheds and Colorado's Approach

Colorado makes no distinction between pre-built and site-built sheds for permit purposes. A pre-manufactured shed under 200 square feet follows the same exemption rules as a stick-built one. The key consideration for pre-built sheds in Colorado is whether the manufacturer's design can handle the local snow and wind loads.

Pre-built sheds shipped from out of state may be designed for the IRC's default loads (30 psf snow, 90 mph wind), which are adequate for some Front Range locations but insufficient for the foothills and mountains. Ask the manufacturer for the rated snow load and wind speed before purchasing. If the shed can't meet local requirements, you may need to reinforce the roof framing or add additional anchoring after delivery.

Colorado's electrical and plumbing permits are handled by the state rather than local jurisdictions. The Colorado Division of Professions and Occupations, through the State Electrical Board and the State Plumbing Board, oversees electrical and plumbing inspections. This means your local building department issues the building permit for the shed, but the state handles electrical and plumbing permits if you add those utilities.

Setbacks, Lot Coverage, and Zoning

Zoning requirements for sheds vary significantly across Colorado's hundreds of local jurisdictions, but common patterns emerge.

Setbacks for accessory structures are typically 3 to 5 feet from side and rear property lines in urban areas. Denver and Boulder may require larger setbacks depending on the zone district. Most jurisdictions prohibit sheds in the front yard, and sheds on corner lots face additional restrictions on the street-facing side.

Lot coverage caps the total building footprint as a percentage of the lot. In Denver, this varies by zone district. In Colorado Springs, the accessory structure floor area cannot exceed the floor area of the primary structure. Jefferson County limits mini-structures (sheds under 200 square feet) to a cumulative 200 square feet per property, though a single larger shed doesn't count as a mini-structure.

Height limits for accessory structures range from 8 to 15 feet depending on the jurisdiction. Denver's 8-foot threshold for requiring a building permit is notably low compared to other cities.

HOA Restrictions

Colorado has one of the highest rates of Homeowners Association (HOA)-governed communities in the country, particularly in the suburban developments around Denver, Colorado Springs, Aurora, Lakewood, and Arvada. The Colorado Common Interest Ownership Act (CCIOA) governs HOA enforcement powers.

HOA shed restrictions are often stricter than municipal zoning. Common restrictions include matching exterior materials and roof style to the primary residence, maximum size limits (frequently 100–120 square feet), screening requirements, and in some communities, outright prohibitions on sheds. Many HOAs require pre-approval from an architectural review committee before any accessory structure can be built or placed on the property.

Colorado's HOA laws give associations the power to fine homeowners and place liens on properties for covenant violations. Get written approval from your HOA before purchasing a shed, even if you've confirmed compliance with the local building department.

Consequences of Skipping the Permit

Building without required permits in Colorado can result in stop-work orders, fines, retroactive permits with double fees in some jurisdictions, removal orders, and complications during property sales. The cost of a shed permit in Colorado is typically $50–$300, depending on the jurisdiction and the shed's size. That's a small price compared to the risk of having to demolish a non-compliant structure.

If you're also planning a garage or carport alongside your shed, note that Colorado jurisdictions limit total accessory structure area on residential properties. Denver's one-shed-per-property rule means you need to plan your accessory building strategy carefully.

For an overview of all building permit requirements in Colorado — including decks, fences, pools, and more — see our complete Colorado building permit guide.