Do I need a permit for a full kitchen remodel in
Downers Grove, Illinois?

Downers Grove kitchen permits — the key details

Downers Grove Building Department enforces the 2021 IBC with local amendments that emphasize kitchen safety and drainage clarity. The single most important rule: any relocation of plumbing fixtures (sink, range, dishwasher drain) or any NEW electrical circuit (small-appliance branch circuits per IRC E3702, which require two separate 20-amp circuits for countertop receptacles) triggers a full building permit plus separate plumbing and electrical permits. The city's code administrator has stated publicly that most kitchen rejections stem from incomplete plumbing drawings — specifically, missing secondary venting for island or peninsula sinks (IRC P3106) and trap-arm slopes that don't meet the minimum 1/4-inch-per-foot drop (IRC P3105). Gas line modifications, including a new range connection or moving an existing supply line, require a mechanical permit and must be signed off by a licensed plumber or gas fitter. If you're adding a range hood with exterior ducting that cuts through an exterior wall, you must show the hood termination detail, duct sizing, and exterior cap location on your electrical plan — Downers Grove doesn't allow soffit terminations and requires a roof or wall cap with a bird/insect screen. Load-bearing wall removal (identified by a beam above it or multiple studs in a double-wide frame) requires a licensed structural engineer's letter or beam-sizing document; the city will not issue a permit for wall removal without this, even if the contractor says it's non-load-bearing.

Downers Grove's unique pre-submission process separates it from many Illinois suburbs. The city's Building Department offers a 'free' initial consultation where you can bring rough sketches or existing plans and sit with a code official for 30 minutes to identify red flags before paying for full plan sets. Many homeowners skip this step and submit incomplete drawings, triggering one or more rejection cycles ($200–$400 per re-review cycle). The city's online permit portal (https://www.downers-grove.org — navigate to 'Permits & Inspections') allows you to upload plans and track status, but staff prefer you call first to confirm which specific documents they need. Downers Grove is also stricter than some neighbors on the Illinois Lead-Based Paint Disclosure Act (state law): if your home was built before 1978, you MUST provide a signed disclosure form before the Building Department will issue any permit. This isn't unique to Downers Grove, but it's enforced here without exception, and many homeowners discover this requirement only after submitting plans, delaying the process by 1–2 weeks.

The electrical and plumbing sub-permits each have their own plan-review cycles and inspections. For electrical, IRC E3702 mandates two separate 20-amp small-appliance branch circuits (one for countertop receptacles, one for refrigerator or other dedicated load); IRC E3801 requires GFCI protection on all countertop and sink-adjacent outlets. Downers Grove electrical inspectors flag violations of the 48-inch maximum spacing rule (no receptacle more than 48 inches from the next) and will demand a revised plan if your layout violates this. For plumbing, the kitchen sink drain must be trapped within 24 inches of the drain outlet (IRC P3105) and vented within 30 inches of the trap (IRC P3103); if you're adding an island sink, it requires either a separate vent line back to the main stack or an air-admittance valve (AAV), and Downers Grove staff will question any island configuration without a clear vent path shown in section view. The rough plumbing, rough electrical, framing, and final inspections are scheduled by the homeowner or contractor after each stage; plan for 2–3 weeks between submitting plans and the first rough inspection appointment.

Downers Grove's frost depth of 42 inches (Chicago area) affects sump pump and drain considerations if you're moving a sink or dishwasher near an exterior wall. If new plumbing requires below-slab drainage (e.g., a sink island in a basement), that drain line must slope 1/4 inch per foot toward a sump pump or daylight drain, and the sump pump discharge line must exit above grade and away from the foundation — common oversight that triggers a rejection. The city also enforces strict backwater-valve requirements for any fixture below the main sewer line's crown elevation; if your kitchen is in a lower-level or walkout basement, Downers Grove will likely require a floor-drain backwater valve or check valve, adding $300–$600 to the plumbing scope. Gas ranges are common in Downers Grove (many homes built in the 1960s–1980s have gas stoves), and if you're moving a range or adding a new one, the gas line must be sized per the manufacturer specs and local code; any gas line work requires a licensed plumber or certified gas fitter to sign the permit application.

The practical next step is to contact the Downers Grove Building Department during business hours (Mon-Fri 8 AM–5 PM; verify current hours before calling) and request either an in-person or phone pre-submission review. Bring a rough floor plan, photos of the existing kitchen, and a list of planned changes (moving walls, relocating sink, adding dishwasher, etc.). The building official will outline what documents you need to submit: a standard set includes architectural floor plans showing all walls, doors, and windows with dimensions; electrical plans showing all new circuits, outlet locations, and GFCI locations; plumbing plans showing sink/fixture locations, drain routing, and vent paths; framing details if any walls are being moved; and structural engineer's letter if any walls are load-bearing. Expect to pay $50–$200 for a professional plan set (many architects and kitchen designers now offer this); submitting poorly drawn plans wastes time and money. Once you submit, the city typically responds with a plan-review memo in 2–4 weeks. If the memo lists only minor comments (e.g., 'show GFCI locations on electrical plan'), you can re-submit a marked-up set and expect approval within 1 week. If it flags major issues (missing vent details, incomplete gas line routing), plan for a full re-review cycle (2–4 more weeks). After permit issuance, you'll schedule inspections in sequence: rough plumbing, rough electrical, framing (if walls moved), and final. The entire process from submitting complete plans to final inspection typically takes 6–10 weeks.

Three Downers Grove kitchen remodel (full) scenarios