Elgin, IL Accessory Structures: Tiny Homes (2026)
Tiny home rules in Elgin, IL, covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds, determine where they are legal and how they get permitted.
Key Facts
- Governing code
- IRC 2021 Appendix AQ, adopted in full
- Citation
- Elgin Municipal Code § 16.36.020
- Permit required
- Yes, under Section 105.1 before construction
- Manufactured housing
- Appendix AE deleted; not a tiny house substitute
- Penalty
- $50-$750 fine per day (§ 1.20.020)
Summary
Elgin permits tiny houses under its One- and Two-Family Dwelling Code, which adopts the 2021 International Residential Code's Appendix Q for tiny house construction in its entirety. Any tiny house built, moved onto, or altered on a residential lot needs a building permit from the building official under Elgin Municipal Code Section 105.1 before work begins, the same requirement that applies to any accessory structure.
That a certain document, one (1) copy of which is on file in the office of the city clerk, being marked and designated as the International Residential Code 2021, as published by the International Code Council, be and is hereby adopted as and shall be known as the one- and two-family dwelling code of the City of Elgin for regulating the fabrication, erection, construction, enlargement, alteration, repair, location and use of one- and two-family dwellings, their appurtenances and accessory structures... Appendix AQ, Tiny Houses, shall be adopted in its entirety. Appendix AE, Manufactured Housing Used as Dwellings, shall be deleted in its entirety.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 7).
Full Breakdown
36 of the Elgin Municipal Code, the One- and Two-Family Dwelling Code, which adopts the International Residential Code (IRC) 2021 for regulating the fabrication, erection, construction, enlargement, alteration, repair, location and use of one- and two-family dwellings, their appurtenances and accessory structures. ' That appendix supplies the IRC's minimum construction standards for tiny dwelling units, and it now governs any tiny house built in Elgin exactly as written by the International Code Council, without local amendment. The same section makes a pointed contrast: 'Appendix AE, Manufactured Housing Used as Dwellings, shall be deleted in its entirety,' so a factory-built manufactured home cannot be substituted for a code-built tiny house under this chapter.
Before construction, enlargement, alteration, or relocation of a tiny house, the owner or an authorized agent must obtain a permit. 020, requires that anyone who intends to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure shall first make application to the building official and obtain the required permit. 7. 040 directs that the more stringent or restrictive provision shall apply.
Violations & Fines
Building, moving, or altering a tiny house without the Section 105.1 permit is enforced as a general Municipal Code violation. Under Section 1.20.020, any person convicted of violating a city ordinance faces a fine of not less than fifty dollars ($50.00) nor more than seven hundred fifty dollars ($750.00), and each day the unpermitted work or noncompliant structure continues counts as a separate offense, so daily fines can accumulate quickly until the structure is brought into compliance or removed.
Frequently Asked Questions
Does Elgin allow tiny houses?
Do I need a permit to build a tiny house in Elgin?
Can I use a manufactured home instead of a stick-built tiny house?
What happens if I build a tiny house without a permit?
Sources & Official References
Other rules in Elgin
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