Do I need a permit for a full kitchen remodel in
Wildwood, Missouri?

Wildwood kitchen remodel permits—the key details

Wildwood's Building Department enforces the 2021 International Residential Code (IRC) as adopted by Missouri, with local amendments that apply particularly to kitchen work. The core rule: any relocation of a plumbing fixture (sink, dishwasher, island drain), any addition of an electrical circuit (small-appliance branch, dedicated refrigerator circuit, island outlets), any modification to a gas line (cooktop, wall oven relocation), or any cutting of exterior walls for range-hood ducting requires a building permit, plus separate plumbing and electrical sub-permits filed together. Cosmetic-only work—cabinet and countertop replacement in the same footprint, new appliances plugged into existing outlets, flooring, paint, backsplash—is exempt and requires no permit. Wildwood's online permit portal (accessible via the city website or by visiting City Hall) allows filing all three permits simultaneously; most homeowners and contractors submit building + plumbing + electrical as a bundled package to streamline review. The city does allow owner-builder applications for owner-occupied homes, but you must sign a sworn affidavit and are personally responsible for all inspections and code compliance.

Load-bearing wall removal is the permit gatekeeper in most Wildwood kitchen remodels. IRC R602.3 requires that any wall supporting roof or floor loads be replaced with engineered structural support—typically a beam, header, or LVL. Wildwood's plan-review team will not approve a load-bearing wall removal without a structural engineer's stamp showing beam size, bearing, and installation detail; this adds $800–$2,000 to the project cost and 2–3 weeks to the review timeline. Non-load-bearing wall removal (partition walls with no structural function) requires only framing plan detail showing studs, blocking, and drywall repair, and reviews faster. If you are unsure whether a wall is load-bearing, hire a structural engineer ($500–$1,000) before design; guessing and pulling a permit with the wrong assumption will get your plan rejected. Wildwood's building inspectors also closely review any wall relocation near HVAC ducts, plumbing stacks, or electrical conduit runs—you must show coordination drawings if walls are moving in a kitchen with existing mechanical chases.

Electrical work in kitchens is highly prescriptive under NEC Article 210 (Branch Circuits) and NEC Article 406 (Receptacles). Per IRC E3702, kitchens require a minimum of two dedicated 20-amp small-appliance branch circuits (separate from lighting), and these must be shown on the electrical plan with wire gauge, breaker amperage, and GFCI protection on every counter outlet. Wildwood's electrical plan-review team flags missing small-appliance circuits on roughly 30% of kitchen permits; it's the most common rejection reason. Counter receptacles must be spaced no more than 48 inches apart (NEC 210.52(C)(1)), and all outlets within 6 feet of a sink must be GFCI-protected. If you are adding an island, it must have at least one receptacle (usually two, 48 inches apart), also GFCI. If you are adding a dedicated gas cooktop, the gas line requires a separate mechanical permit and must be sized per IRC G2406 and pressure-tested. Wildwood requires GFCI data to appear on the electrical plan and inspection notes; many DIY plan submissions are missing this detail entirely.

Plumbing relocations—sink, dishwasher, island drain—trigger IRC P2722 (drainage) and require trap-arm and vent-stack coordination drawings. If you are moving the sink to an island, the island drain must slope toward the main stack at a minimum 1/4 inch per foot grade, and the vent must be sized per the drainage load and distance from the main vent stack (typically a 2-inch vent for an island sink within 10 feet). Wildwood plumbing inspectors request a plumbing riser diagram showing all drain and vent runs; many first-time plan submissions are missing this, causing a 1–2 week hold-up for revision. If the kitchen sits over a basement or crawlspace, show how the island drain ties into the main stack (often an up-and-over configuration that adds cost and complexity). Dishwasher relocation requires a dedicated water supply line (typically 3/8-inch PEX or copper) with a shutoff valve and a dedicated drain line to the sink or main drain. If the dishwasher moves more than a few feet, budget for new water and drain runs; Wildwood inspectors will require rough plumbing inspection before wall closure.

Range-hood ducting to the exterior is a frequent code trigger and a top plan-review hold-up. If your range hood is not recirculating (which most modern kitchens are not), the duct must terminate at an exterior wall or roof with a dampered cap; ductwork cannot terminate in an attic, crawlspace, or interior wall cavity per IRC M1503. Many homeowners attempt to route ductwork through existing cavities or skip the exterior termination detail—both will be flagged during plan review. Wildwood requires the range-hood duct size, run length, number of elbows, exterior termination detail (cap model and location), and makeup-air source (if applicable) to be shown on either the building or mechanical plan. If your range hood is over an island, ductwork routing is often the most complex part of the project; undersizing ductwork or excessive elbows (more than two 90-degree bends) will cause poor hood performance and may fail inspection if the inspector tests fan airflow. Budget for a 2–3 week review if range-hood termination is not clearly shown; it's a common back-and-forth with the plan-review team.

Three Wildwood kitchen remodel (full) scenarios

Why Wildwood requires three separate permits for one kitchen

Wildwood, like most Missouri municipalities, separates building, plumbing, and electrical permits into distinct review and inspection tracks because each trade (general contracting, plumbing, and electrical) is licensed and regulated independently. A building permit covers structural changes, walls, framing, and exterior modifications. A plumbing permit covers water supply, drain, vent, and gas-line changes. An electrical permit covers circuits, outlets, lighting, and service-panel modifications. Bundling them into one application would require a single inspector to review mechanical and electrical work—a conflict of interest and a licensing violation. Wildwood's online portal allows you to submit all three simultaneously, and the city's back-office system coordinates review so they progress in parallel rather than sequentially. Most kitchens generate one rough-plumbing inspection, one rough-electrical inspection, one rough-framing inspection (if walls move), and one final inspection, for a total of 3–5 visits by different inspectors.

The practical effect for homeowners is that you must hire (or coordinate with) a plumber and electrician early enough to provide plan details before the building permit is submitted. Many homeowners skip this step and submit a building plan without plumbing or electrical detail, causing the building plan to be approved but the plumbing and electrical plans to be rejected for missing specifics. This creates a 2–3 week stagger, extending the total review timeline. Professional contractors submit all three simultaneously with full coordination, which is why the permit review process runs faster for experienced teams. If you are an owner-builder, you are responsible for ensuring that all three permits are filed, reviewed, and inspected correctly; delegating to a general contractor typically reduces your risk.

Wildwood's fee structure is also tiered by permit type and valuation. The building permit is usually 1.5–2% of total project valuation (capped at a maximum for large projects). Plumbing and electrical are usually smaller fees ($250–$500 each) plus inspection fees ($100–$200 per inspection type). A $50,000 kitchen remodel might generate $700 building + $400 plumbing + $350 electrical + $200 in inspection fees = roughly $1,650 in city charges. A $100,000 remodel might be $1,200 + $500 + $500 + $300 = $2,500. Wildwood's fee schedule is published on the city website; confirm the exact rates before budgeting.

Wildwood kitchen climate and drainage considerations

Wildwood is located in IECC Climate Zone 4A (mixed-humid, St. Louis area), with a frost depth of 30 inches and loess soil with localized karst features to the south. These factors affect kitchen remodels primarily through plumbing and foundation-drainage design. Kitchens located over unheated basements or crawlspaces must ensure that hot-water supply lines are insulated (IRC P2605) to prevent freeze-up if heat is lost; many Wildwood homeowners in older Colonial and ranch homes experience frozen kitchen pipes in January if basement insulation is poor. When you relocate plumbing or add an island drain, factor in basement temperature control and insulation of supply lines, especially if you are running new copper or PEX through an unheated rim joist or crawlspace.

Drainage is a secondary concern but a real one in Wildwood's loess and alluvium soils. If your kitchen sits over a basement with existing moisture issues (efflorescence, seepage, or dampness), the addition of a new drain line (sink, dishwasher, or island drain) may exacerbate subsurface water movement if the line terminates in a sump pit or crawlspace without proper drainage. Wildwood's plumbing inspector will not reject a kitchen plan for poor basement drainage, but you should coordinate with a drainage contractor before submitting if you have a history of basement water problems. The 30-inch frost depth is not typically an issue for interior kitchen work, but it matters if you are routing gas or water lines to exterior appliances or outdoor kitchen spaces.

Air sealing and moisture control are also implicit in Wildwood kitchen remodels. New exterior walls created by island construction or wall relocation must maintain the building envelope; if you cut an opening for a range-hood duct, the penetration must be sealed with caulk and air-sealing foam to prevent moisture and air infiltration. Wildwood's building code does not explicitly mandate energy-code review for kitchen remodels, but best practice is to air-seal all new penetrations and ensure that supply-line routing in exterior walls includes proper insulation and moisture barriers. Many older Wildwood homes have poor attic ventilation; if a range-hood duct terminates in an attic, condensation can accumulate and cause rot. Exterior termination is the code requirement, and it also prevents moisture problems in the long run.

Common questions