Deck Building West Des Moines, Iowa
West Des Moines lists decks and porches among the projects that need a building permit, and it takes those applications online. A deck under $10,000 pays a flat $47.50 fee. This page covers the city’s published deck rules, from frost depth to front yard limits, so you know them before you compare quotes.
- West Des Moines at a glance
West Des Moines, by the numbers
West Des Moines counted 68,723 residents in 2020 and an estimated 74,224 in 2025. It spreads across four counties: Polk, Dallas, Warren and Madison. Figures come from the Census Bureau and the city.
74,224
2025 Census Bureau estimate
Four counties
Polk, Dallas, Warren and Madison
57.4%
Owner-occupied homes
1893
Incorporated as Valley Junction
$47.50
Flat deck fee under $10,000
42 inches
Frost depth the city sets
8 feet
Front setback reach, open decks
$60.50
Covered or screened porch fee
- Permits and rules
Deck permits in West Des Moines: what to know
Yes, a deck in West Des Moines needs a permit, filed through the City Access Portal. The city sets a flat fee for smaller decks and publishes a 42-inch frost depth and a front yard rule for open decks. Here is what the Building Division asks for.
Permit and portal
Decks and porches appear on the city’s list of residential projects that require a permit. Applications go through the City Access Portal, where you upload plans, track review and pay. Paper is not accepted without prior approval. A kiosk in the City Hall lobby at 4200 Mills Civic Parkway serves anyone without a computer.
What the deck permit costs
The Fee Estimator effective July 1, 2026 sets a flat $47.50 deck fee when the project is under $10,000. Larger decks move to a valuation basis. The Building Official uses the calculated or actual value of the work, whichever is greater, and that value includes labor and materials.
Footings and frost depth
West Des Moines publishes a frost depth of 42 inches in its design parameters, so deck footings go at least that deep. The same list sets a ground snow load of 30 pounds per square foot and a 24-pound roof load. The city also has a Cold Weather Concrete Policy for winter pours.
Front yard decks and porches
The zoning code lets an open porch or deck at least 6 feet deep reach up to 8 feet into the standard front yard setback. In RS zoning that front yard is 30 feet; in R-1 it is 35 feet. Rear and side placement rules sit in another code section, so we confirm them with the Building Division.
Covered and screened porches
A roof changes the fee line. A covered or screened porch pays a $60.50 flat fee, or is valued at $65.00 per square foot when larger. A seasonal porch that is conditioned and insulated, with windows, is valued at $88.00 per square foot.
Requesting inspections
Call the Building Division at 515-222-3630 to request an inspection. Anyone listed as a contact on an active permit, with a portal account, can request one online instead. The city’s inspection pages do not publish an advance-notice window, so ask early.
- Our process
How Busy Builders builds your West Des Moines deck
We draw the deck, upload the plans to the City Access Portal and track the review there. Footings go below the city’s 42-inch frost depth. A deck facing the street gets the 8-foot front yard allowance only when it is at least 6 feet deep. We draw it to that table. Inspections are requested through the portal or at 515-222-3630.
We are a registered Iowa contractor, DIAL C140184, based in West Des Moines since 2020. One homeowner had us build a deck and later hired us back to remodel the basement.
- Plans uploaded to the City Access Portal
- Footings below the 42-inch frost depth
- Inspections requested online or by phone
Portal filing to final
- Achievement
Trusted Deck Builders in West Des Moines
Since 2020, Busy Builders has completed more than 1,285 construction and remodeling projects across Central Iowa.
- Frequently Asked Questions
FAQs About Deck Building in West Des Moines
How much does it cost to build a deck in West Des Moines?
We do not post a deck price range. Size, height, stairs, railings and material set the number, so we give a written estimate after we measure. The city’s share is small when the project is under $10,000: a flat $47.50 permit fee.
Do I need a permit for a deck in West Des Moines?
Yes. The city lists decks and porches among the residential projects that require a permit. You apply through the City Access Portal, because West Des Moines requires electronic submission. The lobby kiosk at City Hall is there for anyone without a computer.
How deep do deck footings go in West Des Moines?
At least 42 inches, the frost depth in the city’s published design parameters. Frost depth is how far down the ground freezes in winter, and footings set above it can heave. If footings go in during cold months, ask about the city’s Cold Weather Concrete Policy.
Can I build a deck or porch toward the street in West Des Moines?
Within limits. An open porch or deck at least 6 feet deep may extend up to 8 feet into the standard front yard setback. The front yard is 30 feet in RS zoning and 35 feet in R-1. The city’s interactive zoning map shows which district your lot is in.
Does a screened porch cost more to permit in West Des Moines?
Yes. A covered or screened porch has a flat fee of $60.50, compared with $47.50 for an open deck under $10,000. Larger porches are valued at $65.00 per square foot. A conditioned seasonal porch is valued at $88.00 per square foot.
Who inspects decks in West Des Moines?
The city’s own Building Division in Development Services. Request inspections at 515-222-3630, or through the City Access Portal if you are a permit contact with an account. Permit questions go to bi@wdm.iowa.gov. City Hall is open 8 am to 5 pm, Monday to Friday.
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