The Application for a plumbing permit, printed as the Plumbing Permit Input Form (PLUMB), is the City and County of Denver Planning and Development form that describes a plumbing job: the property, the licensed contractor, the class of work, the fixtures and the value of the work. It is one of the Denver permit forms handled by Development Services, and it fits the trade-specific quick permits the city can issue without plan review. On this page you can fill out the form online on FillingPDF and download or print the completed PDF; the form and the permit process are published by the city at denvergov.org.
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What is PLUMB?
The Plumbing Permit Input Form (PLUMB), titled Application for a plumbing permit, is the City and County of Denver Development Services form that records the property, contractor, class of work, fixtures, water heaters and valuation for a plumbing permit.
Development Services, at 201 W Colfax Ave., Denver, CO 80202, issues it as part of Denver's building permit system. The form collects:
- the property address and Bldg Dept Log # (the log number of the project);
- the class of work (New Bldg, Addition, Repair/Replace or Alteration/Tenant Finish) and the use of the building;
- the contractor license number, company name and State Master License #;
- a site contact for inspection access and whether the property is a landmark or in a historic district;
- a scope of work, the number of each fixture, back flow preventers, swimming pool items and water heater details;
- the valuation of work and contractor remarks.
Denver's Quick Permits page explains that quick permits are trade-specific permits issued without plan review, and that most projects cannot be permitted this way. It also lists "Application for a plumbing permit" as the document uploaded with a Building Log application when commercial or multifamily gas-fired water heaters, which no longer qualify for a quick permit, need plan review. The form is for plumbing only; Boiler and A/C, Electrical and Mechanical work have their own permit types.
Who needs to file PLUMB?
Contractors doing plumbing work in Denver complete this form for the permit that covers the job. It asks for a contractor license number, company name and State Master License #, so it is built around the licensed contractor who will perform the work.
Quick permit eligibility depends on the building and the work:
- Single-family and duplex structures and garages: back flow preventers, dishwashers, drinking fountains, floor drains, garbage disposals, gas piping outlets, showers, tubs and sinks, swimming pool piping, washers, water closets and urinals, water heaters, water service and water softeners.
- Multifamily and commercial structures: the same list plus fire lines, with water heaters and medical gas piping subject to the conditions on the city's page.
Do not expect a quick permit for grease interceptors, swimming pool heaters or gas-fired water heaters in commercial and multifamily structures. Those go through a Building Log application in e-permits with plans signed and stamped by a licensed design professional or professional engineer. Some work is exempt from building permits; the city points to Section 130.3 Exempted Work of the Denver Building and Fire Code. Trade contractors on new buildings and additions need the general contractor's Residential Construction permit number.
When to file PLUMB
Complete the form when you are ready to apply for a plumbing permit, before the work starts. For single-family, duplex and IRC townhome projects that are new buildings or additions, the plumbing quick permit application requires an issued Residential Construction Permit. If that permit is already issued, the quick permit is issued immediately. If it is not, the general contractor must add their license to it and pay for it first; the quick permit application then opens and can likely be issued the same day.
Alteration/Tenant Finish and Repair/Replace projects do not need a Residential Construction Permit. Once a permit is issued, the work must follow the approved plans; changes require a modified permit submitted as a new Building Log application in e-permits. Since March 1, 2023, new or replacement gas-fired water heaters in commercial and multifamily structures cannot use a quick permit.
Documents you need
- Residential Construction Permit number (format YYYY-RESCON-XXXXXXX): needed to complete a plumbing quick permit application for a new building or addition of a single-family, duplex or IRC townhome; trade contractors get it from the general contractor.
- Landmark quick review application and checklist, plus a photo of the building from the street, photos of the exterior area of work and cut sheets: needed for quick permits involving exterior work on a landmark or a building in a historic district.
- Plans signed and stamped by a licensed design professional or professional engineer: needed for plumbing items that cannot be permitted as a quick permit, such as grease interceptors and swimming pool heaters, submitted with a Building Log application.
- Electrification Feasibility Report or gas leak testing of all piping connected to the gas meter per Denver Energy Code Section C503.4.1, item 2: needed with the Application for a plumbing permit for new or replacement gas-fired water heaters in commercial and multifamily structures.
How to fill out PLUMB
Enter property address and log number
Write the Property Address and, if you have one, the Bldg Dept Log #.
Check the class of work
Under Class of Work, check one: New Bldg, Addition, Repair/Replace or Alteration/Tenant Finish. The class describes the entire project, not only the plumbing.
Enter contractor information
Fill in Contractor License #, Company Name and State Master License #.
Name the site contact
Print the name of the person who can give entry for inspection, with Phone # and Email.
Answer landmark and building use
Check Yes or No for Landmark/historic district. Then check one Use of Building: Single Family Res., Duplex, Garage, Multi-Family Res. or Commercial.
Describe the scope of work
Write a short description of the plumbing work on the Scope of Work lines.
Count each fixture
Under Type of Activity, enter the number of each fixture, such as Bath tub, Kitchen Sink, Shower, Water Closet, Dishwasher, Floor Drain, Gas Piping Outlets, Fire Line, Grease Interceptor or Water Service.
Mark back flow and pool items
Check all that apply: Back Flow Preventer Inside, Back Flow Preventer Outside, Swimming Pool Heater (1 & 2 Family Dwellings only) and Swimming Pool Piping.
Complete the water heater lines
Enter the Hot Water Heater Capacity (# of Gallons), Number of BTU/KW, Number of Water Heaters and Tankless Water Heaters.
Enter valuation and remarks
Enter the Valuation of Work, including labor, profit, overhead, materials, equipment and installation. Add any Contractor Remarks.
Review and download the PDF
Check that Class of Work and Use of Building each have one box checked and that counts match the scope. Download or print the completed PDF from FillingPDF, then apply through e-permits as described under How to submit.
How to submit PLUMB
Denver takes plumbing permit applications through its e-permits portal; help is available by email, phone and appointment.
- Quick permit: sign in to e-permits, go to Apply for a Permit under the Development Services section, and follow the prompts to the plumbing quick permit. For new buildings and additions of single-family, duplex and IRC townhome projects, enter the project address and select the current Residential Construction Permit at the property.
- Building Log (not eligible for a quick permit): select the Building Log application in e-permits and upload the Application for a plumbing permit plus the supporting items the city lists, such as signed and stamped plans, and for gas-fired water heaters an Electrification Feasibility Report or gas leak testing of all piping connected to the gas meter per Denver Energy Code Section C503.4.1, item 2.
- Landmarks: exterior work on a landmark or in a historic district is reviewed by Landmark Preservation, and e-permits asks for extra materials.
- Questions: [email protected], 720-865-2720, or an in-person appointment. The city's Quick Permits page has details.
FillingPDF lets you fill out and download the PDF; submission follows the channels above.
Common mistakes to avoid
- Selecting New Bldg for new equipment in an existing building; the city says to select it only when the entire building is new construction.
- Choosing Class of Work by the plumbing scope alone; it refers to the entire project, not just the work under the trade permit.
- Starting a quick permit application for a new building or addition without an issued Residential Construction Permit for a single-family, duplex or IRC townhome.
- Treating grease interceptors, swimming pool heaters or commercial and multifamily gas-fired water heaters as quick permit work; they need a Building Log application.
- Checking the Swimming Pool Heater box for a building other than a 1 and 2 family dwelling; the form limits that line to those dwellings.
- Leaving labor, profit, overhead, materials, equipment and installation out of Valuation of Work, which the form says to include.
- Answering the landmark or historic district question incorrectly; Landmark Preservation must review quick permits involving exterior work on those properties.
- Building something different from the approved plans without submitting modified drawings; changes require a modified permit.
- Making false statements on the application; the city may revoke any quick permit issued on that basis.
Frequently asked questions
What is the Denver plumbing permit application?
It is the Application for a plumbing permit, printed as the Plumbing Permit Input Form (PLUMB), from City and County of Denver Development Services. It lists the property, contractor, class of work, fixture counts, water heaters and valuation for a plumbing permit.
Can I get a Denver plumbing permit without plan review?
Yes, for the work the city lists as eligible for a quick permit, such as water heaters, showers, tubs and sinks, back flow preventers and water service in single-family and duplex structures. Most projects, including structural work, cannot be permitted this way.
Which Class of Work should I check on the plumbing permit form?
Pick the class that fits the entire project. New Bldg means the whole building is new, Addition means added floor area, stories or height, Alteration/Tenant Finish means renovation or added equipment in an existing building, and Repair/Replace means only equipment replacement or repair.
Do I need a Residential Construction Permit number for a plumbing permit?
Only for single-family, duplex and IRC townhome projects that are new buildings or additions. The number looks like YYYY-RESCON-XXXXXXX; trade contractors get it from the general contractor. Alteration/Tenant Finish and Repair/Replace do not require it.
How long does a Denver plumbing quick permit take?
No plan review is needed, so a covered permit is issued immediately when the Residential Construction permit is already issued. If it is not, the application opens after the general contractor pays for that permit and can likely be issued the same day.
Where do I apply for a Denver plumbing permit?
Apply in the city's e-permits portal: under Development Services choose Apply for a Permit and follow the prompts. For help, email [email protected], call 720-865-2720 or make an in-person appointment.
Can a commercial gas-fired water heater get a quick permit in Denver?
No. Since March 1, 2023, new or replacement gas-fired water heaters in commercial and multifamily structures need a Building Log application in e-permits, with this application and either an Electrification Feasibility Report or gas leak testing per Section C503.4.1, item 2.
Can I fill out the Denver plumbing permit form online on FillingPDF?
Yes. You can fill out the PDF online on FillingPDF and download or print it. FillingPDF is an independent service, not connected to the City and County of Denver, and does not apply for the permit; you apply through the city's e-permits portal.
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