Deck Building in Erie, CO

Deck building in Erie starts with a rule that leaves no gray area: every residential deck needs a Town permit, regardless of size. From there, Erie’s Decks, Patios, and Pergola guidance sets specific expectations for the ledger, the guard height trigger, the setback survey, and the inspection sequence. Our crew designs each Erie deck against those specifics rather than a generic deck package.

Every Residential Deck Needs a Permit

Erie’s permit-requirement page lists decks with or without covers under work that requires a permit, with no stated size or height exemption. That is different from some neighboring cities that exempt very small platforms. In Erie, we plan a new deck, and any deck large enough to need new footings or ledger work, as a permitted project from the first design conversation.

What the Submittal Package Has to Show

The Town’s deck submittal calls for a completed application, a homeowner affidavit if the owner or occupant will do the work, a plot plan showing dimensions from the deck to property lines and easements, and a deck plan that specifies piers or footings, framing material, dimensions, and connectors. If the deck’s location comes within 3 feet of the required zoning setback, an Improvement Survey Plat is also required before the permit can be issued.

We draw that plot plan and footing layout early, because the survey requirement can add lead time to a project that sits close to a setback line.

The Ledger Rule: No Attaching to a Cantilever

Erie’s deck page states plainly that ledgers cannot be attached to cantilevers on the house. A deck ledger has to land on framing that can actually carry the load, not on a floor overhang that was never designed to take a new attachment. We check the house framing at the proposed ledger line before finalizing the deck plan, and where the wall condition does not support a ledger attachment, we design the deck as a free-standing structure instead.

Guards Are Required Past 30 Inches

Erie requires a guard wherever the deck’s walking surface is more than 30 inches above grade at any point within 36 inches horizontally of the open edge. Because that measurement is tied to the actual grade at each point around the deck, a sloped yard can put one side of a deck over the guard threshold even when another side sits close to the ground. We check elevation around the full perimeter, not just at one corner, before deciding where guards are required.

Stairs carry their own expectation: the Town’s guidance states that the load path of stairs must be code compliant, which we plan into the framing rather than treating stair attachment as an afterthought once the deck platform is finished.

Footings and Erie’s Frost Line

Erie’s completed design criteria table sets a frost-line depth of 30 inches for the town, a figure used for foundation design across residential projects generally. Deck footings are sized to that same frost depth so posts do not heave with seasonal freeze-thaw cycles. Erie’s deck page itself does not restate a separate footing-depth number beyond requiring the deck plan to specify pier or footing details, so we design footings to the Town’s 30-inch frost line and confirm sizing with the Building Division as part of plan review.

A Setback Allowance for Low, Unroofed Decks

Erie’s zoning code allows some relief for a low deck near a property line: an unroofed deck, landing, or stair may project into a required setback if its floor sits no higher than 30 inches above finished grade and stays at least 5 feet from the lot line. A taller platform, or one with a roof or cover, does not get that allowance and has to meet the full setback instead. That interacts directly with the Improvement Survey Plat rule above, since a deck built close to a setback line needs both the survey and, if applicable, the height-and-distance allowance confirmed before construction.

Inspections in Sequence

Erie’s inspection list for a deck runs setback inspection, then pier or caisson inspection, which the Town says should be requested at the same time as the setback inspection, followed by rough framing and final building. If the deck adds lighting or receptacle outlets, an electrical inspection is added to that sequence. Decks also qualify for the Town’s Wednesday Rapid Review program for simple residential projects, submitted electronically at least 36 hours in advance, which can shorten the wait for plan review on a straightforward design.

How We Sequence an Erie Deck

We start with the plot plan, footing layout, and a check of whether the design needs an Improvement Survey Plat for setback proximity. Ledger attachment is confirmed against the actual house framing before any cantilever assumption is made, and guard and stair framing are planned around the measured grade rather than added after the platform is built. Footings go to Erie’s 30-inch frost line, the setback and pier inspections are scheduled together, and the job proceeds through rough framing to a final building inspection, with an electrical inspection added wherever lighting or receptacles are part of the design.

Common Questions

Does every deck in Erie need a permit?
Yes. Erie’s permit-requirement page lists decks with or without covers as work that requires a permit, with no size or height exemption stated.

Can a deck ledger attach to my house’s cantilever?
No. Erie’s deck guidance states ledgers cannot be attached to cantilevers on the house; the ledger has to land on framing built to carry that load, or the deck is designed to stand free of the house instead.

When does my Erie deck need a guard?
When the walking surface is more than 30 inches above grade at any point within 36 inches horizontally of the open edge, checked around the full perimeter of the deck.

How deep do deck footings need to go in Erie?
Erie’s design criteria set a 30-inch frost-line depth for the town, and deck footings are sized to that depth; the deck plan submitted for permit has to specify the pier or footing details for Building Division review.

Talk to Us About Your Project

Tell us the deck’s proposed size, height above grade, and distance from your property lines. We will confirm the permit and submittal requirements, plan the ledger and footing details against Erie’s rules, and lay out a buildable framing and inspection sequence.