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Checking alteration requirements before promising a renovation

Navigate the complex process of renovating an Illinois condo unit by verifying board approval policies and the scope of common elements.

By SQFT IO · Published · 2 min read

The short answer

Before committing to a renovation, verify whether your planned changes impact common elements or structural surfaces, as defined by the Illinois Condominium Property Act. Unit boundaries typically include finished surfaces, while structural components remain common elements. Always secure board approval for alterations that affect these shared assets to avoid potential enforcement actions or liens.

Defining Unit Boundaries

The Act clarifies that unit boundaries generally include finished surfaces like paint and flooring, whereas structural portions are common elements. Renovation projects often inadvertently touch these structural parts. Before proceeding, determine exactly where your ownership ends and the association’s common interest begins.

Board Approval and Authority

The board of managers has standing to represent unit owners regarding common elements. If a renovation threatens the integrity or aesthetics of common areas, the board is empowered to restrict the work. Never finalize a contractor agreement based on the assumption that you have total autonomy within your four walls.

Potential for Liens

If an alteration damages common elements, the association may hold you responsible for the costs. Unpaid expenses or fines related to such damages can result in a lien on your unit. Always obtain written approval for the project scope to ensure the association has no cause to impose financial penalties later.

Planning Example: The Alteration Worksheet

Build a project worksheet: 1) Identify if the work affects walls, plumbing, or electrical that serve other units, 2) Submit a written plan to the board, 3) Request a formal letter of approval, 4) Document any conditions required by the board, and 5) Keep this file permanently to show future buyers.

Checklist

  • Review the condo declaration for alteration clauses.
  • Ask the board for their specific renovation application process.
  • Verify if your contractor is licensed and insured.
  • Confirm if the renovation impacts any common elements.
  • Get board approval for the project in writing.

Common questions

Can I renovate my unit without notifying the board?

If the renovation is strictly limited to your own finished surfaces, you may not need permission, but always check your bylaws first.

What if my contractor disagrees with the board?

The board’s authority under the declaration is final regarding common elements. You must resolve conflicts before starting any work.

Sources

  1. CFPB — Closing Disclosure explainerChecked October 12, 2026
  2. Illinois Residential Real Property Disclosure ActChecked October 12, 2026
  3. Illinois Condominium Property Act — 2025 editionChecked October 12, 2026
  4. SQFT IO — Listing plans and termsChecked October 12, 2026

This guide is general educational content from SQFT IO, prepared with AI assistance. It is not legal, tax or loan advice. Talk with a licensed attorney, tax professional or lender about your situation. SQFT IO Illinois license 478.027617.

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