Evanston, IL Swimming Pools & Spas: Pool Permits (2026)

1 of the 2021 International Building Code, any owner or agent who intends to construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or structure must first apply to the building official and obtain a permit before work starts; starting without one forces a stop-work order and a fine equal to 50 percent of the permit fee. 2 carves out one pool-specific exemption: prefabricated above-ground pools accessory to a Group R-3 home that are no more than 24 inches deep and hold no more than 1,200 gallons do not need a building permit.

Every larger or in-ground pool does, reviewed by the Division of Building and Development Services under the 2021 International Swimming Pool and Spa Code the City adopted at Section 4-1-4. Getting a permit does not override zoning. Evanston City Code Section 6-4-6-3(B), item 31 of Table 4-A's list of allowable accessory structures, places swimming pools in the rear-yard-only column and restricts them to residential districts, provided they sit no closer than 10 feet from any property line. That is a tighter setback than the general 3-foot minimum Section 6-4-6-2(E) sets for other accessory structures in a rear yard, so a pool cannot simply match a shed's placement.

Pools also count toward the 40 percent cap on rear-yard lot coverage under Section 6-4-6-3(A)(1). An application that does not meet the setback or coverage limits gets denied rather than issued.