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Do you need a permit for a swimming pool in Chicago?

It depends on the project. Chicago exempts some swimming pools from a building permit and requires one for the rest1; the exemption's limit is 48 inches, with the conditions in the city's wording below.

Last checked

On this page
  1. Which permits you need
  2. Limits and conditions in Chicago's rule
  3. Above-ground pools in Chicago
  4. What to submit
  5. Who can apply
  6. Special areas and extra reviews
  7. Who to ask
  8. Pool permit rules in other cities
  9. Sources

Depends on size or scope

Chicago's rule

“Installing, altering, or removing a swimming pool serving a residential building with no more than 3 units (Group R-5 occupancy), that has a water depth of 48 inches or less and a 90% water volume of 5,000 gallons or less…”1

City of Chicago, Department of Buildings, Small Permanent Structures

Which permits you need

PermitRequired whenThe city’s wording
Building permitDepth > 48 in: plan-based building permitInstallation of a private residential swimming pool requires a plan-based building permit.2
Building permitDepth ≤ 48 in and volume > 5,000 gal: Express permit for other workAn express permit for other work , based on a dimensioned sketch, is required for any pool with a water depth of 48 inches or less and a volume greater than 5,000 gallons when 90% full.2
Electrical permitAny non-cord-and-plug electrical connectionAn express permit for electrical work is required for any permanent or temporary electrical connection or electrical wiring, other than a cord-and-plug connection.2
Plumbing permitPermanent connection to Chicago waterworksAn express permit for plumbing work is required for any permanent connection to the Chicago waterworks system.2

Limits and conditions in Chicago's rule

Each limit sits next to the sentence it comes from; the conditions in that sentence are part of the rule.

RuleValueThe city’s wording
Pools exempt below this depth48 inchesWith a water depth no greater than 48 inches (4 feet)…2
Exempt up to this volume5,000 gallonsWith a volume no greater than 5,000 gallons when 90% full…2
Exempt up to this excavation depth5 feetInstalled at ground level or in-ground but not requiring excavation deeper than 5 feet…2

Above-ground pools in Chicago

Depends on size or scope

Chicago's rule for above-ground pools

“Installing, altering, or removing a swimming pool serving a residential building with no more than 3 units (Group R-5 occupancy), that has a water depth of 48 inches or less and a 90% water volume of 5,000 gallons or less…”1

City of Chicago, Department of Buildings, Small Permanent Structures

RuleValueThe city’s wording
Pools exempt below this depth48 inchesWith a water depth no greater than 48 inches (4 feet)…2
Exempt up to this volume5,000 gallonsWith a volume no greater than 5,000 gallons when 90% full…2
Exempt up to this excavation depth5 feetInstalled at ground level or in-ground but not requiring excavation deeper than 5 feet…2

What to submit

  • Architect/engineer sealed construction documents for >48 in pools2

Who can apply

  • Architect/structural engineer or licensed expediter starts the plan-based application2

Special areas and extra reviews

  • Outdoor private residential pools usable June 1-September 15 only2

Who to ask

City of Chicago Department of Buildings3

Building permits

Address
121 N. LaSalle St., Room 900, Chicago, IL 60602
3
Hours
Mon-Fri 8:30 a.m.-4:30 p.m. (9th floor front desk, City Hall; no walk-in permit processing)6
Inspections
Online only: webapps1.cityofchicago.org7

Pool permit rules in other cities

Rules differ from city to city. Compare Chicago with 19 other cities on the national swimming pool permit guide, or go straight to one:

Sources

  1. What Types of Work Do Not Require a Building Permit? (Full List)City of Chicago, Department of BuildingsChecked November 7, 2026
  2. Guidance on Residential Swimming PoolsCity of Chicago, Department of BuildingsChecked November 7, 2026
  3. Department of Buildings (home page)City of Chicago, Department of BuildingsChecked November 7, 2026
  4. Express Permit ProgramCity of Chicago, Department of BuildingsChecked November 7, 2026
  5. Calculate the Cost of a Building PermitCity of Chicago, Department of BuildingsChecked November 7, 2026
  6. Current Operations: Frequently Asked QuestionsCity of Chicago, Department of BuildingsPosted September 29, 2026Checked November 7, 2026
  7. Permit-Related Building InspectionsCity of Chicago, Department of BuildingsChecked November 7, 2026