Building permits, zoning and land rules in Miami County, Indiana

Yes. The Miami County Building Department handles permits for construction and remodeling in unincorporated areas, while the zoning ordinance separately requires an Improvement Location Permit for structures and changes of use^1,4. Listed minor work, including a detached storage shed of 120 square feet or less, driveway paving and walks, is exempt from the Improvement Location Permit rule¹. County inspectors perform follow-up inspections, although the published material does not identify every mandatory inspection stage⁴. Applicable work follows Indiana's building codes, including the current Indiana residential code for one- and two-family dwellings⁵. Before occupancy, a new, changed, altered or enlarged building or premises needs a certificate of occupancy after inspection by the Zoning Administrator¹.

The Miami County Building Commission is the permit and inspection contact for unincorporated construction; call 765-472-3901, ext. 1291, or email inspmc@miamicountyin.gov^4,6. The Miami County Planning Department administers zoning and directs online permit applicants to the Schneider GeoPermits site⁷. The Improvement Location Permit application goes to the Plan Commission Office and includes the parcel description, uses, improvement locations and sizes, adjacent roads, estimated cost, plot plan and any required drainage plan¹. A permit is revoked if work does not begin within 30 days or is not substantially complete within 1 year unless the Plan Commission grants an extension¹. First identify the parcel's jurisdiction because Bunker Hill, Converse and the City of Peru are outside the county ordinance's stated coverage¹.

Yes. Miami County zoning covers unincorporated land and incorporated towns other than Bunker Hill, Converse and the City of Peru¹. Uses and special exceptions vary among the county's published agricultural, residential, business, industrial, planned-unit and flood-related districts¹. A single-family house with an individual septic system generally needs a 30,000-square-foot lot, while a preexisting smaller lot may need Health Department approval¹. A single-family dwelling generally needs at least 1,000 square feet of floor area¹. Primary-building setbacks generally range from 25 to 50 feet in front by street class, with a 25-foot rear setback and a 10-foot side setback¹. Lot-coverage and height limits also vary by zoning district, so have Planning confirm the parcel-specific limits rather than applying one countywide figure¹.

Miami County Environmental Health administers on-site sewage permits, inspections and enforcement; call (765) 473-0283 or visit 12 S Wabash St., Peru, IN 46970^2,8. For a dwelling using on-site sewage, the septic permit or Health Officer approval must come before the Improvement Location Permit¹. Request inspection at least 2 working days before covering any part of the system². Only 3.3% of mapped county soils avoid a “very limited” rating for conventional drain fields, so make septic feasibility an early purchase contingency⁹. Where the ordinance's sanitary-sewer availability conditions apply, a new dwelling or business must connect, and the Health Officer may require connection when its estimated cost is no more than 1.5 times the estimated septic-installation cost². Where sewer is unavailable within 300 feet, county and state on-site sewage rules apply, and a residential privy needs a temporary special permit².

A parked or stored RV on a residential lot governed by Miami County may not be used for living, sleeping, camping or housekeeping¹. A travel trailer or mobile home on a construction site may serve as an office, watchman's shelter or storage, but not as living or sleeping quarters¹. With Zoning Administrator approval, a temporary mobile home may instead house someone during dwelling construction, and it must be removed within 30 days after completion or within 8 months, whichever comes first¹. Miami County does not publish a separate tiny-home category in the reviewed rules, so ask Planning to classify the proposed structure; the ordinary single-family minimum is 1,000 square feet¹. An accessory or pole building cannot become a dwelling unless it meets county building codes and receives Plan Commission approval¹. A permanent manufactured home outside a mobile-home court generally needs at least 960 square feet and a permanent underfloor foundation¹.

1. Confirm whether Miami County or Bunker Hill, Converse or the City of Peru controls the parcel¹.

1. Ask Planning to verify the zoning district, permitted use, lot size, setbacks, lot coverage and height limits¹.

1. If the project divides land, obtain Plan Commission plat approval before relying on a new parcel for permits or occupancy¹⁰.

1. Resolve sewer availability or secure septic approval before the dwelling Improvement Location Permit^1,2.

1. Obtain the Highway Department culvert or driveway permit before the Building Permit can issue¹.

1. Submit the required site and project information to the Plan Commission Office, then obtain the building permit and schedule follow-up inspections^1,4.

1. Complete the approved work and required sewage and culvert items before requesting the certificate of occupancy¹.

Start with jurisdiction and district because county zoning excludes Bunker Hill, Converse and the City of Peru, and allowed uses vary by district¹. Confirm that any proposed split complies with subdivision rules; a nonconforming parcel created after the ordinance took effect cannot receive a building permit or certificate of occupancy^1,10. Make an acceptable septic site a purchase contingency because only 3.3% of mapped soils avoid a severe limitation rating for a conventional drain field⁹. Ask Environmental Health about septic feasibility and whether the proposed private well needs a local permit^2,11. In a special flood hazard area, an application for a structure with plumbing must show an approved public-sewer or on-site-septic connection¹². Ask the Highway Department about the required driveway or culvert permit, while access to a state highway needs INDOT permission^1,13.