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Do you need a permit for a deck in Indianapolis?

It depends on the project. Indianapolis exempts some decks from a building permit and requires one for the rest1; the exemption's limit is 30 inches, with the conditions in the city's wording below. Work that needs no building permit can still need zoning approval.

Last checked

On this page
  1. Which permits you need
  2. Limits and conditions in Indianapolis's rule
  3. Zoning rules: separate from the building permit
  4. What to submit
  5. Who can apply
  6. Review time
  7. Special areas and extra reviews
  8. Who to ask
  9. Deck permit rules in other cities
  10. Sources

Depends on size or scope

Indianapolis's rule

“Erection or installation of a deck where: a. No part of the floor is more than thirty (30) inches above finished grade; and b. There is compliance with the assessor notification requirements of section 536-215…”1

City of Indianapolis, Department of Business and Neighborhood Services, Sec. 536-201(b)(15), p. 23

Which permits you need

PermitRequired whenThe city’s wording
Building permitConditionalErection or installation of a deck where: a. No part of the floor is more than thirty (30) inches above finished grade; and b. There is compliance with the assessor notification requirements of section 536-215…1
Zoning permit or reviewILP not required for structures under 18 in above gradeMinor Residential Structures that extend less than 18 inches above grade level (measurement excludes handrails)…2

Limits and conditions in Indianapolis'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
Exempt up to this height above grade30 inchesNo part of the floor is more than thirty (30) inches above finished grade…1

Zoning rules: separate from the building permit

A project can be exempt from one and still need the other (zoning vs building permits).

Zoning ruleValueThe city’s wording
Side and rear setback5 ft from the rear lot line; front and side: the district's minimum setbacksShall not be located closer to any rear lot line than 5 feet…2
Front and side setbacksNot closer than the district minimum front/side setbacksShall not be located closer to any front or side lot line than the required minimum front and side yard setbacks of the dwelling district, or, in the case of a front yard, the established front yard setback on the lot, whichever is greater…2
Zoning approval needed even without a building permit?YesMinor Residential Structures: Structures that are subordinate and secondary to the primary residential use of a property, such as garages, carports, porches, decks or patios 18 inches or greater in height, mini-barns, sheds, workshops, swimming pools, hot tubs, porte-cocheres, bathhouses, cabanas, secondary dwelling unit, shelters for personal livestock, greenhouses, and other accessory buildings or structures similar and comparable in character to these uses.2

What to submit

  • Deck details3

Who can apply

  • Licensed contractor or property owner doing own work (Statement of Intent)4

Review time

10-15 business days (typical first review)5. This is the department's published figure, not a guarantee.

Special areas and extra reviews

  • Historic districts may need a certificate of appropriateness even when no permit is required1
  • Floodplain development permit may be needed even when no building permit is required1
  • Flood permit required for all construction in a flood zone4

Who to ask

City of Indianapolis Department of Business and Neighborhood Services (DBNS)6

Building permits

Website
indy.gov6
Address
200 E. Washington St., Suite 107, Indianapolis, IN 46204 (City-County Building)
6
Hours
9 AM-4 PM Monday-Friday6
Inspections
By automated phone line 317-327-5525 using the permit number4

Deck permit rules in other cities

Rules differ from city to city. Compare Indianapolis with 18 other cities on the national deck permit guide, or go straight to one:

Sources

  1. 2016 Building Standards and Procedures of the Consolidated City of Indianapolis (Chapter 536 etc.)City of Indianapolis, Department of Business and Neighborhood ServicesEffective January 1, 2018Checked November 7, 2026
  2. Indianapolis-Marion County Consolidated Zoning and Subdivision Ordinance (August 2026)City of Indianapolis, Department of Metropolitan DevelopmentEffective August 19, 2026Checked November 7, 2026
  3. Residential Permit ChecklistCity of Indianapolis, Department of Business and Neighborhood ServicesChecked November 7, 2026
  4. Homeowner's Building Permit GuideCity of Indianapolis, Department of Business and Neighborhood ServicesLast updated March 2021Checked November 7, 2026
  5. Permit Issuance Process (flowchart)City of Indianapolis, Department of Business and Neighborhood ServicesChecked November 7, 2026
  6. Department of Business and Neighborhood ServicesCity of Indianapolis, Department of Business and Neighborhood ServicesChecked November 7, 2026
  7. Accela Citizens Access Portal (ACA)City of Indianapolis, Department of Business and Neighborhood ServicesChecked November 7, 2026
  8. License and Permit FeesCity of Indianapolis, Department of Business and Neighborhood ServicesChecked November 7, 2026