Denver handles small trade jobs through quick permits issued without plan review, while decks, sheds, and fences follow separate zoning and building limits; structural work cannot be a quick permit.
Denver’s single-family / duplex project pages for decks and sheds, plus the fences and walls zoning page, give homeowners unusually clear dual-track guidance: zoning approval and building permits are not the same button. This page translates those patterns and cites the official URLs.
National guides: Do I need a building permit? · Deck permits · Shed permits · Fence permits · 10-Minute AHJ Permit Check
City pattern pages: Portland OR · Seattle WA · Denver CO
Denver’s dual track: zoning + building
Many Denver outdoor projects ask two questions: Does zoning allow this form/height/location? Does the building code require a construction permit and inspection? Homeowners who only ask “do I need a building permit?” miss zoning permits that still block the project—or create problems at sale.
Denver also notes that homeowners can sometimes pull permits without a contractor if they meet eligibility rules on the homeowner permits page. That does not waive zoning, drainage, or landmark review.
Decks — 12 inches and 30 inches
From Denver’s residential decks page (Residential Decks, Porches, Patios, Pergolas, and Carports):
- Uncovered decks 12 inches or less off the ground generally do not require a permit on non-landmark properties (per the published “Do I Need a Permit?” framing).
- Uncovered decks 12 inches or more off the ground require a zoning permit.
- Decks 30 inches or more off the ground also require a building permit.
- All covered structures (patios, porches, carports, pergolas) need both zoning and building permits.
Some decks also trigger sewer use and drainage permits (SUDP). Denver notes that uploading zoning, building, and SUDP materials together can enable simultaneous review—useful if you are already in the portal.
Compare Portland’s ~30" building trigger and Seattle’s ~18" trigger: Denver’s published path uses 12" for zoning and 30" for building on uncovered decks. That layered pattern is why city pages beat generic national advice.
| Denver deck pattern (example) | Zoning | Building |
|---|---|---|
| Uncovered ≤12" (non-landmark) | Often none | Often none |
| Uncovered ≥12" and <30" | Usually required | Often not (verify) |
| Uncovered ≥30" | Usually required | Usually required |
| Covered patio / porch / pergola / carport | Required | Required |
Paraphrased from denvergov.org deck page. Confirm before framing. National context: deck permit guide.
Sheds — 200 sf, 8-ft top plate, 14-ft max
Denver’s residential sheds page (Residential Sheds) states you do not need a building permit for one-story, detached, non-conditioned accessory buildings used as tool/storage sheds, playhouses, and similar uses when they meet published limits including:
- No more than 200 square feet of projected roof area
- 8-foot top plate height
- No more than 14-foot maximum height to any point (measured from lowest adjacent grade)
A maximum of two lights and two receptacles is mentioned with a valid electrical permit—another reminder that “no building permit” ≠ “no electrical permit.”
Zoning is separate: Denver Zoning Code zone districts may allow a shed as a minor detached structure without a zoning permit if it meets form standards; Former Chapter 59 districts may require a zoning permit for new/relocated/altered sheds. Read the zoning section on the same page for your lot.
Fences and walls — four feet, six feet, and construction type
Denver’s fences and walls page (Fences and Walls) mixes zoning maximums with permit triggers:
- Except in industrial areas, published maximums are often four feet in the front yard and six feet in the backyard (relative to the primary street-facing façade).
- Fences shorter than four feet generally do not require a permit (unless landmark/historic).
- All fences over four feet need a zoning permit; walls over 12 inches generally need zoning.
- Building-permit rules depend on construction: post-hole dug fences may only need a building permit when taller than eight feet, while other fence/wall types may need a building permit over four feet. Masonry/retaining walls over six feet can require commercial engineering review.
Keep fences out of the public right-of-way and at least six inches back from the public sidewalk—details on the official page.
National fence patterns: Fence permits.
Homeowner checklist for Denver projects
- Confirm City and County of Denver jurisdiction (not Aurora, Lakewood, unincorporated Adams/Jefferson, etc.).
- Check landmark / historic / parkway status.
- Decide if the project is uncovered vs covered (covers change everything on the deck page).
- Measure height from the grade reference Denver uses.
- Ask whether zoning-only, building-only, or both apply—and whether SUDP is in play.
- If you need plans, upload a complete package the first time to avoid staggered reviews.
Pulling the permit yourself in Denver
Denver lets owners apply without a contractor, but the rules are tighter than many people expect. According to the city's homeowner permits page, the permit has to be for a single-family home (a garage on the same lot is fine). You can't get one for an ADU, a townhome, a condo, or a duplex, even if you live in one of the units. You must be the legal owner and live there, show a photo ID that matches the Assessor's records, and stay in the home for at least one year after the work is done. Permits can't be issued to a trust, an LLC, or a corporation.
There are two ways to do it. You can act as your own general contractor and hire licensed subcontractors, who each pull their own trade permits. Or you can do the work yourself, with an unpaid helper named on the permit if you need one. Electrical, plumbing, and mechanical work needs a homeowner exam unless you hold a license in that trade. General construction and roofing or siding don't need an exam. One catch: homeowners can't apply for a quick permit through e-permits. Denver asks you to email the application with your photo ID instead.
What to upload so Denver reviews it once
The deck, shed, and fence pages all ask for a scaled site plan with the scale and a north arrow. It should show every zone lot line, the streets and alleys next to the lot, existing buildings and driveways, the new structure and its height, and the distances from the new work to lot lines and other buildings. If a sewer use and drainage permit (SUDP) is involved, add the size, type, and location of the water, storm sewer, and sanitary sewer lines. The deck page says that if you upload everything for zoning, building, and SUDP in the first application, the three reviews can run at the same time.
A shed that needs a building permit also needs framing details: stud and rafter size and spacing, the ridge, the foundation or slab, anchor bolts, headers, and the roof covering and pitch, among other items on the shed page. For fences, the fences and walls page asks for elevations when you mix materials (a fence on top of a retaining wall, for example) or go over height. It also asks for section and footing details whenever a building permit applies.
Situations that change the answer in Denver
- Floodplain or a nearby sewer line. If the lot is in a floodplain, or you'll dig within two feet of the sewer line, you may need an SUDP even for a shed or a fence (Denver shed page).
- Parkways. If the project reaches into a designated parkway setback, Denver asks for an Exception Request form sent to the Parkways team.
- Landmark or historic district. Denver recommends getting a Certificate of Appropriateness before you apply for building and zoning permits. Fences and walls on these lots need a permit at any height.
- Tearing something down first. Removing an old deck or shed before building the new one needs a demolition permit.
- A new driveway or curb cut. Transportation engineers will look at the sidewalk, curb ramps, and alley next to your lot, and the deck page warns this could mean improving the right-of-way.
- Front-yard retaining walls. Denver's Zoning Tip Sheet #3 limits retaining walls in the primary street setback to 4 feet, with stacked walls at least 4 feet apart. Grading within 10 feet of the front lot line generally can't change the grade by more than 1 foot. There are exceptions, so ask before regrading the classic "Denver hill."
Small jobs Denver says don't need a permit
The homeowner permits page lists work that skips the building permit. That covers painting, wallpaper, tile, flooring, countertops, and cabinets. It also covers like-for-like fixtures such as faucets and sinks, general repairs that don't change the plumbing or electrical system, and drywall when you patch or replace a single sheet no bigger than 4 by 8 feet. The same page adds a warning worth repeating: a wastewater, zoning, or fire permit may still be required even when a building permit isn't (Denver homeowner permits).
Review times and trade permits
Denver doesn't promise a fixed turnaround. Its plan review times page runs a dashboard built on 90-day averages, and it notes that the due date shown in e-permits is set automatically and doesn't move with workload. Ground-level patios and decks, sheds, window wells, and small interior remodels fall in the "Minor Residential" group, which the city lists as eligible for faster review.
Adding lights, outlets, heat, or water to a deck or shed means separate electrical, mechanical, or plumbing permits. Most of these are quick permits issued without plan review. The quick permits page is clear that structural work never qualifies. Since May 22, 2025, trade permits for new buildings and additions also need an already-issued Residential Construction Permit.
Denver quick permits: trade work you can get without plan review
Denver issues some trade-specific permits without a plan review, but it says most projects, including structural work, cannot be quick permits (Denver Quick Permits). For single-family and duplex homes and garages, the city lists:
| Trade | Examples Denver lists as quick-permit work | Limit or catch |
|---|---|---|
| Electrical | Panels and subpanels, wiring or rewiring, EV chargers, GFCI outlets, ceiling fans, lighting and receptacles | Only if the utility service is rated 400 amps or less, single-phase |
| Mechanical | Residential A/C, ductwork, exhaust systems, gas piping, range hoods, water heaters | Not for structural work |
| Plumbing | Showers, tubs and sinks, dishwashers, water heaters, water softeners, water service | Gas-fired water heater rules differ for multifamily and commercial |
| Roofing and siding | New roofs, roof repair or replacement, new roof penetrations, exterior wall coverings | Repairs over 10% of the roof area or two roof squares (whichever is smaller) need a roof permit; landmarks and historic districts need Landmark review first |
Source: Denver Quick Permits.
Portland handles its permits differently; see our Portland deck, shed, and fence guide for that city.
Denver FAQ
Can I pull my own permit for the duplex unit I live in?
No. Denver's homeowner permits are limited to single-family homes, and the city specifically excludes duplexes, townhomes, condos, and ADUs, even the unit you occupy (Denver homeowner permits). You'll need a licensed contractor for that work.
Does a 10-by-12 shed need a permit in Denver?
Usually not a building permit. Denver's limit is 200 square feet of projected roof area, an 8-foot top plate, and 14 feet to the highest point, so measure the roof footprint, not just the floor. Zoning is a separate question. In Denver Zoning Code districts a shed that meets the minor detached structure standards needs no zoning permit, but in Former Chapter 59 districts every new or moved shed needs one (Denver shed page).
Is a fence exactly 4 feet tall permit-free?
Denver says fences shorter than four feet don't need a permit and fences over four feet need a zoning permit. A fence right at four feet sits on the line, so measure carefully and confirm with Community Planning and Development before you build. On landmark or historic properties, any fence needs a permit.
How long will my deck permit take?
Denver doesn't publish one fixed number. Check the review-times dashboard for the "Minor Residential" category when you apply, and remember that the e-permits due date is automatic, not a promise (Denver review times).
Do I need a permit to repair part of my roof in Denver?
Denver says roof repairs larger than 10% of the roof square footage or two roof squares, whichever is smaller, require a roof permit, and the roof permit is always separate from the general construction permit.
Can a deck in Denver be a quick permit?
No. Denver says structural work cannot be permitted as a quick permit, so a deck that needs a permit goes through the regular building review.
Official Denver sources cited
Last checked: October 2026.
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