Get Started

Builders Risk in Illinois

Illinois DNR's floodway program reaches construction, fill, excavation and material storage, with jurisdiction and thresholds that differ by watershed and location. Confirm both state and local permits for the actual work area; a permit requirement does not establish insurance coverage. 1,2

What Is Builders Risk?

Builders risk protects the project you are building, including materials meant for it, against physical loss until construction ends. The gaps that cost owners money are materials in storage or transit, the existing building in a renovation, and coverage ending when you occupy early. Read the national Builders risk guide.

What to Watch for in Illinois

  • Check the stream and watershed threshold

    Illinois DNR describes different watershed-size thresholds for urban and rural stream floodways. Where no floodway has been delineated, DNR says it generally requires a permit for work anywhere in the floodplain, so an absent line on a map is not enough to rule out review. 1,2

  • Include temporary materials and equipment in the permit screen

    DNR's floodway FAQ treats storing materials as development alongside structures, fill and excavation. Ask the local floodplain administrator and DNR which portions of the construction site and staging area fall within jurisdiction before storing project materials there. 2

  • Confirm which state and local rules apply

    Illinois identifies designated floodway rules for parts of Cook (excluding Chicago), DuPage, Kane, Lake, McHenry and Will counties, and notes that community floodplain requirements can be additional. Map the exact parcel and route approvals with the relevant local authority and DNR before mobilization. 1,2

Who Regulates Insurance in Illinois

Illinois Department of Insurance

The Department licenses and oversees insurers and insurance producers doing business in Illinois, reviews regulated insurance activity, and investigates complaints about coverage, claims, premiums, and sales. 3,5,4

Surplus-lines tax and stamping office

Reported tax rate: 3.5% of taxable premium plus a 0.04% stamping fee; separate 1% fire marshal tax on taxable fire premium When Illinois is the insured’s home state, the broker reports and remits a 3.5% tax on gross taxable surplus-line premium less returned taxable premium. The separate SLAI stamping fee is 0.04% for policies effective on or after January 1, 2023; a 1% fire marshal tax also applies to taxable fire premium. 7,6,10,11,8

Surplus Line Association of Illinois

  • Illinois guaranty fund limits: For covered claims against a member insurer, the Illinois Insurance Guaranty Fund generally caps its obligation at $500,000 per claim; workers’ compensation claims are excepted from that dollar cap. This fund does not protect policies issued by nonadmitted surplus-lines insurers. The net-worth exclusions apply to covered claims against member insurers. 8
  • Illinois FAIR Plan: If you cannot obtain basic property coverage in the voluntary market, the Illinois FAIR Plan offers a residual-market option for eligible property. Check its current eligibility and coverage limits before relying on it for a commercial location. 9

Providers With Documented State Licenses

No provider in Spot’s research documents both a state license record and this coverage line. This does not establish that providers are unlicensed. Check the regulator’s license lookup and confirm availability with a provider when requesting a quote.

Questions to Ask Before You Buy in Illinois

  1. What is the watershed size and floodway status at the building, access route and material-storage areas, including any unmapped floodplain review?
  2. Which DNR, local, federal or delegated permits are required, and what approvals or inspections are schedule dependencies?
  3. Does the quote address flood or surface water at the worksite and offsite storage/transit locations, and what project-delay terms apply?

Builders Risk in Illinois: FAQ

If an Illinois floodway is not mapped, can work proceed without DNR review? 2

Not necessarily. DNR says its jurisdiction can extend into an undelineated floodplain, depending on the watershed threshold and project location. 2

Can temporary materials storage matter to an Illinois floodway permit? 2

Yes. DNR's FAQ includes storing materials among the activities that may be regulated in a floodway. Confirm how the rule applies to the specific site. 2

Builders Risk in Other States

Other Coverage in Illinois

Sources

  1. Permit Programs. Illinois Department of Natural Resources; Floodway permit jurisdiction, urban/rural thresholds, designated counties and delegated/statewide permits; lines 130–140. Accessed 2026-09-28.
  2. Water Resources Frequently Asked Questions. Illinois Department of Natural Resources; Construction/material storage and additional local or federal permits; lines 141–153 and 230–257. Accessed 2026-09-28.
  3. Illinois Department of Insurance. Illinois Department of Insurance; Official agency homepage and agency information. Accessed 2026-09-28.
  4. File a Complaint. Illinois Department of Insurance; Official insurance complaint intake and consumer phone. Accessed 2026-09-28.
  5. Calculating & Remitting Taxes: Surplus Line Tax. Surplus Line Association of Illinois; Current surplus-line tax applicability and rate. Accessed 2026-09-28.
  6. 215 ILCS 5/445: Surplus line. Illinois General Assembly; Subsections (3)(a), (12): tax and code applicability. Accessed 2026-09-28.
  7. 215 ILCS 5: Illinois Insurance Guaranty Fund. Illinois General Assembly; Article XXXIV: cap, net-worth exclusions, exceptions, and non-admitted insurer exclusion. Accessed 2026-09-28.
  8. Illinois FAIR Plan Association. Illinois FAIR Plan Association; Plan overview and current eligibility information. Accessed 2026-09-28.
  9. Stamping Fees: Fee Calculation. Surplus Line Association of Illinois; Current stamping fee 0.04% of premium for policies effective January 1, 2023 or later; may be passed to insured. Accessed 2026-09-28.
  10. 50 Ill. Adm. Code § 2701.130: Taxes. Illinois Joint Committee on Administrative Rules; Surplus line producer pays 1% fire marshal tax on gross premiums less returned premiums for insurance subject to the Fire Investigation Act. Accessed 2026-09-28.
  11. Licenses. At-Bay; Current producer introduction and state table; At-Bay Insurance Services LLC; P&C and surplus-lines identifiers. Accessed 2026-09-21.
  12. Licenses and Carriers. Coalition; Licenses and Carriers, re-read 22 September 2026: Insurance Licenses table for Coalition Insurance Solutions, Inc., national producer number 18419475, with producer and surplus-lines numbers for all 50 states and DC including California 0L76155, Georgia 196479, Texas 2199630 and 2205589, Pennsylvania 815731 and 817452, Colorado 539028 and Wisconsin 3000108852. Insurance Carriers table naming, with NAIC numbers, Allianz Underwriters Insurance Company 36420, Arch Specialty Insurance Company 21199, Ascot Specialty Insurance Company 45055, Ascot Insurance Company 23752, Aspen Specialty Insurance Company 10717, Chaucer Insurance Company DAC, Coalition Insurance Company 29530, Fireman's Fund Indemnity Corporation 11380, Fortegra Specialty Insurance Company 16823, Lloyd's of London, MSIG Specialty Insurance USA Inc. 34886, MS Transverse Specialty Insurance Company 41807, Steadfast Insurance Company 26387, Vantage Risk Specialty Insurance Company 16275 and Zurich American Insurance Company 16535. Accessed 2026-09-22.
  13. Insurance Producer Licenses. Corgi Insurance; Current complete Insurance Producer Licenses table for Corgi Insurance Services, Inc.; 50 rows covering 49 states and DC (DC 3003091619); no New Mexico row; no NPN or as-of date shown. Accessed 2026-09-28.
  14. About Hiscox US Insurance. Hiscox; Hiscox Insurance Company Inc. NAIC 10200 as Chicago, IL domiciled insurer admitted or licensed in all 50 states and D.C.; Hiscox Inc. as general agent and Lloyd’s coverholder for Syndicates 33 and 3624; surplus-lines placements through licensed surplus-lines brokers; A.M. Best rating statement. Accessed 2026-09-16.
  15. Licenses. ERGO NEXT Insurance; Current entity-by-state license table reopened 28 September 2026: 50 rows under Next First Insurance Agency, Inc., including Washington, DC; New York rows instead list Next Insurance Services PC-1423070 and AP Intego BR-1198885. Accessed 2026-09-28.
  16. About Risklytics. Risklytics; What we do; Who we insure; Licensing; Agency licenses table dated 2026-09-10. Accessed 2026-09-16.
  17. Insurance Licenses by State. TechInsurance; Current state table; identifies TechInsurance as a division of Specialty Program Group LLC d/b/a SPG Insurance Solutions; lists DC 3000041536 and labels Rhode Island “Individual licenses,” without an agency license number. Accessed 2026-09-28.
  18. Licenses. Vouch; Effective 16 January 2025: Vouch Specialty Insurance Services, LLC, NPN 19926463; P&C table (50 states and DC); surplus-lines table includes Idaho 870820; footnote says Georgia and Idaho do not issue agency-level surplus-lines licenses; Idaho retained as producer-only due to conflict. Accessed 2026-09-15.

Updated .

This guide is informational and does not determine whether a policy is available or meets your needs. Editorial policy. To suggest a correction, contact Spot with a supporting source.

Get Help With Insurance Buying and Renewals.

Get help buying coverage and managing renewals, with less paperwork for your team. Start with a free consultation.

Talk to Spot