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Questions?
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Contact the Residential Permit Counter - Community Planning and Development
phone: 720-865-2710
Permit Questions:
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ADDITION OR CONVERSION: Permit Application Checklist
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Residential Permit Counter - Community Planning and Development Webb Municipal Building, 2nd floor 201 W. Colfax Ave Denver CO 80202
Phone: 720-865-2710
For directions to our office, click here.
This checklist provides a general overview of the permit application process for constructing a single or two story addition or converting an attic to a livable space. For questions concerning the policies, procedures, and laws governing permits, please come in person to the Permit Counter at the address above, call 311, or follow the links provided below.
Verify Property and Zoning Information
Before you begin designing your project, check to make sure your project is in compliance with your neighborhood zoning, historic district guidelines, planned unit development specification and homeowner's covenants. To research special guidelines that may apply to your property, choose from the links below:
Determine Who Will Do the Work
If you have been living at your primary address for more than one year, you may complete several types of projects yourself—without hiring a contractor—by passing a homeowner exam offered by the City and County of Denver. See below for more details.
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Who Can do the Work?
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Required Licenses / Homeowner Exams
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| Homeowner |
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Electrical Test
Mechanical Test
Plumbing Test
Refrigeration Test
Hot Water/Boiler Test
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| Contractor |
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Residential Contractor License
Electrical License
Gas Service License
Heating and Ventilating License
Hot Water License
Refrigeration License
Steam/Hot Water License
Class D – Lathing, Plastering and Drywall
Class D – Non-Structural Residential Remodel
Class D – Roof Covering & Waterproofing
Class D – Siding
Class D – Tenant Finish
Class D – Title, Marble, Sandstone, Granite, Terrazzo, Chemical Broadcast and Troweled Floor Finish Systems
Class D – Wood Framing
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| Friends/ Family |
helper only
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Must file designated worker form |
About Selecting a Contractor
Selecting a contractor is an important decision for all consumers. Construction contractors are required to be licensed in Denver to ensure qualified individuals perform work in accordance with Denver's Building Code. You should also insist on proof that the contractor is insured and bonded. Check with the insurance company that the contractor's policy is current. Beware of unscrupulous contractors that suggest you, as the homeowner, secure the permit in your name. The permit holder is legally responsible for the completion of the job to code standards.
Application Process
Applications and payments must be submitted in person Monday - Friday from 7:30 a.m. to 4:00 p.m. and Wednesdays from 8:30 a.m. to 4:00 p.m to the above address.
Due to high volume, we advise that you begin the process before 3:00 p.m. in order to complete everything before we close. To speed processing, please submit documents with complete and accurate information.
REQUIRED PERMITS AND FEES
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Permit Type
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Fee |
Basic
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1R Permit: Alteration, Construction, Repair type work on Single Family Residences, Duplexes and Accessory Structures
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Link |
| #2 Permit: Roofing, Gutters, Siding, Fascia/Soffit, and Blown-in Insulation |
Link |
| #3 Permit: Electric |
Link |
| #4 Permit: Plumbing |
Link |
| #7 Permit: Steam/Hot Water Boilers, Radiation for Heating Systems |
Link |
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#11 Permit: Force-Air Furnaces and Ventilation
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Link |
| Other Agency Permits |
| Zoning |
Construction and Use Permit (Not Required for Attic Conversion) |
Link |
| Wastewater |
Sewage Use and Drainage Permit (Not Required for Attic Conversion) |
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DOCUMENTATION AND REQUIRED INFORMATION
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Homeowner
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Contractor
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| Property Address. Must supply a valid Denver address. |
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| Proof of Ownership. Acceptable proof of ownership includes: Recent Denver Property Tax Statement, recorded Deed, or if recently closed on a home--closing papers with settlement page showing recording fees paid. |
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| Photo ID. Acceptable identification includes: a driver’s license or a non-driver’s ID issued by a State Department of Motor Vehicle |
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| Proof of License. Must include one of the following: Original Denver contractor's license (photocopy not accepted), license card, a company check, or a company credit card |
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| Proof of Completed Homeowner Test. (If work is to be done by homeowner. For more information see section number 2 above on "Who Will Do the Work?" |
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| Designated Worker Form. (If homeowner will get assistance from family or friends.) |
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Description of Work. A description of the work that includes square footage, length, sizes, etc of materials being installed.
Provide structural details for your project. View the examples provided by the Colorado Chapter of the ICC for basements, garages, decks, roofs, additions, patio covers and enclosing a patio. The examples based on the 2006 ICC Code are located at: Building Guides
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| Fair Market Value of Project. An amount a contractor might charge equal to labor, material, profit and overhead. |
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4 Copies of Complete Set:
Foundation Plan. Show dimensions of foundation; stem wall thickness and footing width; interior footing sizes, and beam locations and sizes.
Architectural/Floor Plan. Label rooms, include dimensions, and specify window and door sizes.
Floor Framing Plan. Specify size and spacing of joists, beams, and show post locations.
Roof Framing Plan. Specify size and spacing of rafters, beams and show post location, header sizes at windows and doors.
Typical Wall Section. Show footing depth and thickness, foundation damp proofing and anchor bolts, framing details, insulation, siding, roof deck and roofing, etc.
Building Section. Show cut view through building from footing to roof. Label structural components, insulation, ceiling heights, stair details, etc.
Elevation Plan. Show how the building looks from outside (windows, doors, balconies, etc.) Mark floor lines, specify exterior siding and show grade line.
Site/Plot Plan. Show property lines and all buildings on the site, including dimensions of buildings and distances to property lines and between buildings. Also include north arrow, street with name of street, and sidewalk or alley, if applicable.
Note: If prepared by professional, 2 copies must be wet stamped and signed.
All plans must on 18” x 24” paper minimum, drawings must be to scale, with the job site address and owner’s name on the drawings.
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Pin/Boundary Survey. (If within 3’ of side property line) Show exact location of four (4) corners of property. Must have original stamp and signature by State Licensed Surveyor.
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| Soils Report. |
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| Engineered Truss Design. (if using a manufactured floor or roofing systems) |
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| Letter of Structural Integrity. |
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| Excavation Bond from City Engineer is required when the existing foundation must be shored or strengthen. |
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| Shoring Details are required when the existing foundation must be strengthened. |
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| Air Infiltration Barrier Number. (for new addition) |
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| Energy Conservation Calculations. (when more than 20% of gross wall area is glass and doors) |
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Approval Process
a. Estimated Processing Time: Two Weeks
This project requires review of your drawings and permit application(s). Due to volume of applicants, you may experience extended wait times prior to application processing.
Due to high volume, we advise that you begin the process before 3:00 p.m. in order to complete everything before we close. To speed processing, please submit documents with complete and accurate information.
Minor single story additions of 400 square feet or less and not constructed over a basement will probably be processed in two to four hours
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Required?
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| Application Review |
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Plan Review and Drawings (See "Documentation and Required Information" above.) |
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| *If property is within a historical district, permit application must be reviewed by Landmark Commission. |
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b. Payment and Issuance
Upon approval of your permit application, you will be required to pay fees at our Cashier’s Desk where your permit will be issued.
c. Permit Display
Once issued, permits should be displayed in the front window of the property or other visible location where the inspector will have access.
Required Inspections
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Required? |
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Rough-In
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[100] Construction Footing Inspection After installation and prior to being covered. |
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[101] Construction Foundation Wall Inspection After installation and prior to being covered. |
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[102] Construction Foundation Perimeter Drain Inspection After installation and prior to being covered. |
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[103] Construction Water Proofing Inspection After installation and prior to being covered. |
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[104] Construction Frost Wall Inspection After installation and prior to being covered. |
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[105] Construction Exterior Sheathing Inspection After installation and prior to being covered. |
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[106/200] Construction Batt/Blown Insulation Inspection After installation and prior to being covered. |
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[107] Construction Drywall Inspection After framing and prior to window or door being installed.
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[111] Construction Exterior Lath Inspection After framing and prior to window or door being installed. |
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[112] Construction Frame Inspection Prior to being covered by insulation. |
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| [300] Electrical Slab Inspection |
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| [301] Electrical Underground Inspection |
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[302] Electrical Partial Rough-In Inspection
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[303] Electrical Rough-In Inspection Prior to being covered by insulation and drywall. |
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[400] Plumbing Groundwork Inspection
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[401] Plumbing Rough-In Inspection Prior to being covered by insulation and drywall. |
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[700] Boiler/Refrigerator Groundwork Inspection
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[701] Boiler/Refrigerator Pressure Test Inspection Schedule when the piping is installed and before it is connected to the supply. Pressure testing is done during rough inspection. Line must be pressurized with compressed air before the inspector arrives. |
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[702] Boiler/Refrigerator Partial Rough-In Inspection
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[703] Boiler/Refrigeration Rough-In Inspection Prior to being covered by insulation and drywall. |
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[900] Mechanical Groundwork Inspection
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[901] Mechanical Pressure Test Inspection Schedule when the piping is installed and before it is connected to the supply. Pressure testing is done during rough inspection. Line must be pressurized with compressed air before the inspector arrives. |
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[902] Mechanical Partial Rough-In Inspection
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[903] Mechanical Rough-In Inspection Prior to being covered by insulation and drywall. |
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Final
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[108] Construction Final Inspection
Schedule when all work is complete.
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[201] General Roof Inspection
Schedule when all work is complete. |
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[202] General Gutter Inspection
Schedule when all work is complete. |
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[203] General Siding Inspection
Schedule when all work is complete. |
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[304] Electrical Partial Final Inspection
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[305] Electrical Final Inspection
Schedule when all work is complete. |
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[402] Plumbing Final Inspection
Schedule when all work is complete. |
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[704] Boiler/Refrigeration Final Inspection
Schedule when all work is complete. |
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[904] Mechanical Final Inspection
Schedule when all work is complete. |
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Certificate of Occupancy
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| The Department will send you a Certificate of Occupancy when the inspector has signed the final approval. |
Automated Inspection Request System
Call our Automated Inspection Request System at 720-865-2501 to schedule an inspection 24-hours a day. Inspection requests received before 10:00 p.m. will usually be scheduled for the following work day. Occasionally an inspection is scheduled for a later date due to volume of workload. To schedule an inspection using the automated system you will need: • The permit number which is printed on the bottom of your permit. • Three-digit inspection code for the inspection type requested. To determine which inspection code to use see above, or for additional inspection information see the Inspection Type Directory.
At the end of your call, you will be given a verification number and the inspection date. To find out the approximate time of an inspection, contact our office the morning of the scheduled inspection between 7:30 a.m. and 8:30 a.m..
Fax Request System (Use only if automated system is down.)
You may also fax your inspection request to 720-865-2675. Each inspection request should be faxed separately. Indicate the contractor's name, type of permit, type of inspection to be performed (Frame, Foot, Found, W.S., Rough, Final, Partial, Service) and the exact address with unit or floor number. Also include the permit number and the name of the person requesting the inspection.
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