In addition to the previous page of research information; the following information is a checklist of requirements for a new addition to an existing home or duplex within the City and County of Denver.    

1. Advisory 310   New Addition Checklist
2. Advisory 311   Inputting Form
3. Advisory 303   Statement of Valuation
4. Advisory 318   Neighbor Notification 
5. Advisory 305   Site Plan
6. Advisory 317   Unobstructed Open Space
7. Advisory 312   Accessory Structures 
8. Construction information, see the  ICC - Building Guides - English version, Spanish version; will show an example of a floor plan and other general information. 
9. Advisory 319   Bulk Plane and Height Measurements varies between each Zone District

   • Admin 155.1   Excavation and Shoring Policy
   • Development Services    Sewer Use and Drainage permit      
10. Denver requires that plans accompany your permit application for several types of projects. Detailed plans can help you avoid time-consuming and costly modifications prior to starting your project and may speed the permitting process.  Drawings also assist contractors with the preparation of a complete and accurate cost estimate for your project.  Drawings or plans are helpful for even the most basic work and are often required for projects with a medium to high level of complexity.  Read through the checklist and submit all information required for  your project.  
11. If your proposed addition is one story and has less than 400 square feet without a new basement; the plans can be reviewed over the counter if time permits; however the reviewer may log in the plans and complete the review off counter within five business days;
12. If your proposed construction has more than 400 square feet, or has a new basement, or new second story; will require the plans to be  "Logged In".   This type of project is logged in at the Log In Counter (Green Flag) and can take a minimum of three weeks to complete the first review of plans and applications.  Keep in mind that resubmittals of plans required to address code compliance and can add to the overall timeline. 
13. Resubmittals/Plan Correction Notices
    You may be required to modify your logged in plans to meet several specifications or you may be required to submit additional information if plans are incomplete.  You may also receive a plan correction notice or a permit denial if your plans are in violation of the Building or Zoning Code.   If you do not intend to appeal a plan correction notice, or chose not to go to the Board of Adjustment; you must submit all the required corrected plans with a completed "Resubmittal Form" to the Log in counter that comply with the code requirements.  Always "cloud"  the changes on the plans and notify the reviewer if there is a change from the original scope of work.   

Who can obtain a permit?  

• HOMEOWNER:  Homeowner permits cannot be issued to LLC's, Trusts, Corporations, etc.  Denver Assessor records shall have homeowner listed as a natural person.  If permitting as a Homeowner, you MUST apply for permit in-person and provide Proof of Ownership or recorded Power of Attorney.  If ownership information differs from  Assessor Records due to a recent real estate purchase; provide copies of closing papers with the settlement page showing recording fees paid, other acceptable proof of ownership includes:  recent Denver Property Tax Statement, or Recorded Deed.  A Photo ID is required and will be verified at issuance of a Homeowner permit.  Acceptable identification includes: a driver’s license or a non-driver’s ID issued by a State Department of Motor Vehicle. Keep in mind if pulling a homeowner's permit; you must comply with Policy 151.2, or a
• CONTRACTOR:   Contractors must show proof of license by supplying one of the following:  Original Denver contractor's license card (photocopies are not accepted), a company check, or a company credit card.