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Before you start your project, you need to know what regulations apply to your property and what factors may impact your project. You'll need to consider:
Historic Landmark Status
If your property is in a local historic landmark district or is a designated landmark structure, the Landmark Preservation staff must complete a design review of your project before you begin. Use the DevelopDENVER tool to the right to determine your property’s landmark status. Changes to the exterior of landmarked properties require approval from Landmark Preservation prior to the issuance of appropriate zoning, building, curb cut, or revocable permits. Visit the design review web page for more information.
Zoning establishes standards for things like the size and location of structures and acceptable uses for your property. Before you begin construction, you need to be sure your project is in compliance with Denver's Zoning Ordinance. Use the DevelopDENVER tool to the right to determine the zoning for your property. Once you've found how your property is zoned, you should look up your zone district in the Denver Zoning Code to see what that means for you.
Certain parkways and boulevards are specifically designated by ordinance to preserve their unique character. Each designated parkway has its own right-of-way width and regulations of setback distance of structures and signs. If you are unsure if you live along a designated parkway, use the DevelopDENVER tool to the right to determine your status.
Denver Building Code provides minimum standards for building in order to safeguard public safety, health and welfare.
Location of Existing Sewer Lines
A plumbing contractor can help you locate the sewer lines on your property. If you plan to build a new structure over or within 2 feet of the existing sanitary sewer, you will need to replace the sanitary sewer with approved materials. Contact the Department of Public Works at 303-446-3759 for more details.
For Landmark Certificate of Appropriateness:
For Zoning Permit:
A scaled or fully dimensioned Site Plan showing the following:
Base Plane Information: Original grade spot elevations at intersection of side property lines at front setback and spot grade elevations at rear corners of property if within 2 feet of bulk plane and / or height.
Simple Project - One story, more than 5' away from property lines - only need site plan
Medium Project - Exactly 5' from property line and height within 2 ' of the bulk plane - need Site Plan and Elevation Plans with base plane information for height and bulk
High Project - Less than 5' to property line and/or the peak is perpendicular to the side property line - need the following:
NOTE: An Improvement Location Certificate can be used in place of a site plan in most cases.
For Building Permits:
For Sewer Usage and Drainage Permit (SUDP):
Wastewater does require sewer replacement with approved material for any structure being built over or within 2' of the existing sewer line.
Wastewater does require that historic storm drainage be maintained and not directed to adjacent properties or across public sidewalks.
If property is in a floodplain, additional submittal requirements apply.
For application, guidelines and other specific information, see the following:
Sewer Use and Drainage Permits (SUDP)
For a Do-It-Yourself (DIY) Project:
Zoning and Building permit fees are based on valuation of the work to be completed including the labor and materials.
For Wastewater sewer permit, there is a $100 application fee plus other fees may apply.
There are no fees for Parkways or Landmark review.
View the permit fee schedules to estimate the fees required for your project.
Wellington Webb Municipal Building
201 W. Colfax Ave., 2nd Floor
Denver, Colorado 80202
For Landmark Certificate of Appropriateness:
Submit a design review application to Landmark Preservation. The approval typically takes one to three weeks. More complex projects or projects requiring Landmark Preservation Commission or Lower Downtown Design Review Board approval will take longer.
NOTE: Obtain Landmark approval first before proceeding with other permits.
For Zoning and Building:
Plan Review - Submit all construction documents to at the Permit Service Counter for review by City staff. Once review has been completed and all documents approved, permits will be issued.
Quick Permit - Application is reviewed by Development Services staff for completeness and permit is isssued:
For Parkways Review:
Plan Review - If Parkways review is required, submit all construction documents at the Permit Service Counter for review by City staff. Once review has been completed and all documents approved, permits will be issued. The review process can take up to 30 days depending upon the complexity of your project.
For Sewer Use and Drainage Permit (SUDP):
Same Day Review if the additional space does not change the use (e.g., Single Family Residence to Duplex)
Plan Review for all change of use and or work in a floodplain.
NOTE: All documents can be submitted in person or online through the ePlan.
Typical inspections for a second story addition or dormer addition include the following:
NOTE: The inspections listed above may vary depending on the complexity of your project.
Decide whether you plan to complete the project yourself or hire a licensed contractor to complete the job for you.
Do It Yourself
You may need to pass a Home owners exam to demonstrate proficiency in specific trades in order to get a permit to do the work yourself.
You will also need to meet a set of requirements established by the Denver Building Code and the Building Department Policy ADMIN 131.3 governing homeowner completed work. This policy can be found on our Building Codes, Forms and Policies page.
Use the Contractor license search to see if your contractor has obtained a contractor's license from the City and County of Denver.
To view other considerations, see our Doing the Work Yourself page.
Every project is different. Depending upon the complexity of your project, the permit requirements and inspection process may vary from the information presented in this guide. If you have any questions, please contact us.