Chicagoland Permit Timelines for 2026: How Long Each Municipality Actually Takes

Every municipal building department's website claims their permit timelines are short. Reality often differs. Across 280+ permitted Chicagoland projects in the last 36 months, we have tracked actual permit timelines for every municipality we serve. Here is the honest 2026 timeline data — the kind that lets you plan a project rather than be surprised.

Methodology

The numbers below reflect actual permit issuance times from CrestLine submission to receipt-in-hand, including any plan-review comment cycles. We separate "first-pass approval" (clean submission, no comments) from "with revisions" (one or more comment cycles, which is the more typical experience).

All data is from January 2024 — March 2026 across 280+ residential remodel permits.

Fastest Permit Jurisdictions (Average 3-7 Days)

Arlington Heights

• First-pass kitchen/bath: 3-5 business days
• With revisions: 7-10 business days
• Online application: yes (well-functioning)
• Plan review: thorough but practical
• Notes: Among the most efficient NW Suburbs departments. Inspector availability is reliable; same-week scheduling typical.

Mount Prospect

• First-pass kitchen/bath: 3-7 business days
• With revisions: 7-12 business days
• Online application: yes
• Notes: Consistently efficient. Inspector communication is strong. Phone responsiveness exceptional.

Wilmette

• First-pass kitchen/bath: 5-7 business days
• With revisions: 10-14 business days
• Online application: yes (modern system)
• Notes: Most efficient North Shore department. No Architectural Review Board for interior work or most exterior work. Reasonable fees.

Highland Park

• First-pass kitchen/bath: 5-7 business days
• With revisions: 10-15 business days
• Online application: yes
• Notes: Generally permissive. Strong inspector pool. Reasonable fees relative to North Shore.

Mid-Range Permit Jurisdictions (Average 7-14 Days)

Palatine

• First-pass kitchen/bath: 7-10 business days
• With revisions: 14-21 business days
• Online application: yes
• Notes: Generally efficient. Plan review is detailed; comments common on first submission. Inspector availability good.

Northbrook

• First-pass kitchen/bath: 7-10 business days
• With revisions: 14-21 business days
• Online application: partial (some forms still in-person)
• Notes: Solid department. Inspector communication good. Some scheduling friction during peak season.

Glenview

• First-pass kitchen/bath: 7-12 business days
• With revisions: 14-21 business days
• Online application: yes
• Notes: Reasonable across the board. Particular attention paid to energy code compliance.

Hoffman Estates

• First-pass kitchen/bath: 7-14 business days
• With revisions: 14-21 business days
• Online application: yes
• Notes: Plan review is thorough. Stormwater detention review may apply for larger exterior projects, adding 5-10 days.

Slower Permit Jurisdictions (Average 14-28 Days)

Schaumburg

• First-pass kitchen/bath: 10-14 business days
• With revisions: 21-28 business days
• Online application: yes
• Notes: Detailed plan review. Stormwater detention required for projects over 400 sf exterior. HOA approval often required separately, adding 2-4 weeks. Schaumburg is more demanding than its NW Suburbs neighbors.

Winnetka

• First-pass kitchen/bath (interior only): 10-15 business days
• Exterior work with ARB: 5-7 weeks
• Online application: yes
• Notes: Architectural Review Board (ARB) required for any change visible from public right-of-way. ARB meets 2nd Tuesday of each month, with submissions due 21 days prior. This is the primary delay factor in Winnetka projects.

Glencoe

• First-pass kitchen/bath: 10-14 business days
• With landscape impact statement (decks/patios over 200 sf): 21-28 days
• Notes: Landscape impact review for exterior projects is unique to Glencoe in Chicagoland.

Lake Forest

• First-pass kitchen/bath: 14-21 business days
• Historic Preservation Commission (when applicable): 6-10 weeks total
• Notes: Historic Preservation Commission applies broadly across Lake Forest. Required for any exterior change in designated historic areas. Strictest department in Chicagoland.

Chicago City (ProjectDox System)

Single-Family Homes

• First-pass kitchen/bath: 14-21 business days
• With revisions: 21-35 business days
• Structural changes (architect required): 5-8 weeks
• Online application: ProjectDox system (functional but learning-curve)
• Notes: Plumbing code requirements (copper not PEX) and electrical code requirements (EMT conduit not Romex) catch many out-of-city contractors on first submission. Knowing the requirements upfront prevents comment cycles.

Condos and Multi-Unit Buildings

• Condo board approval (must happen before permit): 2-4 weeks
• Then permit timeline same as single-family
• Total: 5-9 weeks typical
• Notes: Condo board approval is often the slowest part of city permit timelines. Building manager scheduling and certificate of insurance compliance add operational complexity.

Landmark District Properties

• Chicago Landmarks Commission review (exterior): 8-12 weeks
• Plus standard permit timeline
• Notes: Approximately 70 landmark districts in Chicago. Lincoln Park, Pullman, Old Town, parts of Lakeview affected. Interior work is generally unrestricted.

What Causes Delays

Across all jurisdictions, the most common causes of permit delays are:

1. Incomplete applications — Missing pages, unsigned forms, expired insurance certificates. Most common reason for first-pass rejection. Adds 1-2 weeks per cycle.
2. Plans not stamped — Many remodels require an Illinois-licensed architect or engineer to stamp the drawings. Submitting unstamped plans for structural work guarantees rejection.
3. Wrong code interpretation — Code interpretations vary slightly between municipalities. Comments addressing specific code citations are common, adding 1-2 weeks per cycle.
4. Energy code calculations — Newer permits require energy code compliance calculations (REScheck or similar). Missing or wrong calculations are a common comment.
5. Missing HOA approval — In subdivisions with HOAs, missing HOA approval certificate stalls the municipal permit even when the municipal review is otherwise complete.
6. ARB or Landmarks coordination — Forgetting that exterior work requires ARB (Winnetka, Lake Forest) or Landmarks (Chicago) approval BEFORE the building permit. Adds weeks.
7. Stormwater detention — Schaumburg, Glencoe, and some others require stormwater analysis for exterior projects over certain thresholds. Often missed.

How CrestLine Reduces Permit Delays

Across 280+ permitted projects in the last 36 months, our average permit issuance is 8-12 business days for standard interior remodels. This is meaningfully faster than the average because we:

• Pre-check every submission against the specific municipality's checklist
• Maintain relationships with plan reviewers at every active municipality
• Coordinate HOA, ARB, and Landmarks reviews in parallel with municipal review when possible
• Use a partner architect for any structural work requiring stamped drawings
• Track every active permit through resolution and follow up on stale submissions
• Submit all applications same-day or next-business-day after contract signing

Build Permit Timelines Into Your Renovation Plan

If you are planning a Chicagoland renovation, factor permit timelines into your scheduling from day one. A 4-week design phase + 2-3 week permit phase + 6-week build phase = 12-13 weeks total project timeline. Add HOA approval and exterior architectural review where applicable.

The exception: emergency repairs and small handyman jobs that do not require permits — these can start within 1-7 days of contract signing.

Have questions about timelines for your specific municipality? Call (630) 812-7247 or request a free estimate. We will give you a specific timeline for your specific project and municipality.