Yes, in Denver, permits are often required for many hardscape projects. Zoning permits and building permits are typically needed for decks, walls, fences, and covered structures. What is required depends on the height, structure type, and whether utilities or large soil disturbances are involved.

Here’s what you need to know to keep your project compliant and stress-free.

When Permits Are Typically Required

Decks

• A zoning permit is required if the deck is more than 12 inches off the ground.
• If your deck is 30 inches or more above grade, you will also need a building permit.
• Covered decks, porches, or pergolas usually need both zoning and building permits.
• Denver’s 2025 regulations added stricter rules on setbacks and structural codes for elevated decks.

Retaining Walls

• Walls over 12 inches high typically require a zoning permit.
• If the wall supports a structure or alters the grade significantly, additional permitting may apply.

Fences

• Fences over four feet tall generally require a zoning permit.
• Side and rear yard fences up to six feet tall may not need a building permit depending on design.
• Heights over six feet or in certain zoning districts may trigger building permit or variance requirements.
• Homes in historic neighborhoods often require design review for fences.

Covered Structures and Sheds

• Structures like pergolas, covered patios, porches, and carports need permits.
• Sheds over 200 square feet or taller than eight feet typically require a building permit.

Soil Disturbance and Grade Changes

• A permit is required if you disturb more than 2,500 square feet of soil.
• Grade changes over 24 inches in height also trigger permit reviews.

Underground Utilities

• Any work involving electrical, plumbing, drainage, or gas lines will require separate permits and inspections.

How to Check the Specific Requirements

• Visit the City and County of Denver’s planning and permit website. You’ll find zoning and building rules for decks, patios, fences, and more.
• Use their property lookup tool to find your zoning classification and restrictions.
• If your home is in a landmark district, check if design review is needed for fences, walls, or site changes.
• Denver’s e-permits portal lets you apply and track approvals.
• For large or commercial projects, download the city’s Commercial Building Permit Guide.

Let Mile High Landscaping Help You Navigate Permits

Hardscape projects in Denver can be complex, but the team at Mile High Landscaping is here to help. We understand local codes and permitting processes and can handle applications on your behalf to keep your project on schedule.

Whether you are adding a backyard patio or building a custom deck, we’ll help you plan, design, and execute the project with full compliance.

Contact Mile High Landscaping today to schedule your consultation.