Bolthole Index

Miami County, Ohio

Zoning, building permits and septic rules in Piqua, Ohio

Piqua, Ohio (in Miami County) zones land under its own Development Code, so zoning inside city limits is decided by the City of Piqua, not the county1. The city requires permits for new garages, sheds, decks, fences, pools and driveways2. A private septic system is allowed only where public sewer is unavailable, and it needs a written Piqua Utilities Department permit first3.

At a glance

Zoning
Yes. Piqua's Development Code applies inside city limits1
Permits for garages, sheds, decks, fences, driveways
Required inside Piqua2
Online permit portal
GovWell for planning and zoning, engineering and contractor registration4
Septic
Only where public sewer is unavailable; written Utilities Department permit before construction35
Floodplain
City Planner reviews activity in the 100-year floodplain6
Wells
Ohio requires a board of health permit for private water systems7

Who to call

Planning & zoning

City of Piqua Planning and Zoning Division

Piqua's Development Code, zoning, and the permits the city lists for fences, pools, sheds, garages, sidewalks, decks, driveways and added parking

937-778-2049

201 W Water Street 2nd Floor

Online permits →

Septic permits

Miami County Public Health - Environmental Health

Household sewage treatment system permitting, site and soil evaluation, design review and inspections in Miami County; also private water system (well) permits through the county board of health

937-573-3500

510 W. Water St. Suite 130, Troy, OH 45373

Contact details are copied from each office’s official page and were checked against it on October 24, 2026.

Off-grid gear

Going off-grid in Piqua means bringing your own water and power. The kit we’d start with:

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Does Piqua, Ohio have zoning?

Yes. The Piqua City Commission passed Ordinance O-2-23 on April 18, 2023, and the Development Code took effect May 18, 20231. The code sets minimum standards for construction and land use inside the city8. The effective zoning map is linked from the city's Development Code page9.

Inside Piqua, the county's township zoning does not apply. Miami County administers zoning only for eight of its twelve townships, and its rules cover unincorporated land10.

We could not confirm Piqua's rules on long-term RV living, tiny homes, accessory dwellings, minimum home size, lot size or setbacks, and these vary by zoning district. Ask the Planning and Zoning Division for your parcel's district before you plan anything. Splitting a lot or platting new ones goes through the city's Planning Commission, which handles plat and subdivision review11.

Do you need a building permit in Piqua, and who issues it?

Piqua requires permits for any new fence, pool, shed, garage, sidewalk, deck, driveway or additional parking on a property2. The city runs planning and zoning, engineering and contractor-registration permits through its GovWell online portal, and lists hard-copy applications on its permits page4.

We could not confirm which office reviews plans and inspects a new house inside Piqua. Ohio law sends residential plans to the certified building department that has jurisdiction, and says an owner needs no plan submission where no certified residential department has jurisdiction12. Miami County's Building Regulations department issues residential permits in unincorporated areas13, so a city lot is a different question. Call the Planning and Zoning Division before you buy.

The permits above are not the only ones. Any work in the 100-year floodplain also goes through the City Planner6.

How do septic permits work inside Piqua?

Piqua's code treats a private septic system as the exception. When public sanitary sewer is not available under the city's sewer rules, the building sewer must connect to a private wastewater disposal system that meets the city code14. Before construction begins, the owner must get a written permit signed by the Piqua Utilities Department5.

State rules point the same direction: Ohio requires connection to a public sewer when one is accessible and available, measured at 300 feet for an existing structure15. Ohio also requires a board of health permit for a new or replacement sewage treatment system16. Miami County Public Health is the county's health district and handles septic permitting there17. We could not confirm how the city and health district split the permit and inspection steps inside Piqua, so ask the Utilities Department which approvals you need.

Soils matter too. Across Miami County, 0% of soils rate as not limited for a conventional drain field18. Expect a site evaluation and possibly an engineered system.

Do you need a well permit in Piqua?

We could not confirm a Piqua rule on private wells. The statewide rule applies regardless: no one may construct, alter or seal a private water system or test well without a permit from the board of health7. In Miami County that board is Miami County Public Health19. Ask whether city water is available to your lot before you plan a well.

Building in Piqua: the steps, in order

  1. Call the Planning and Zoning Division8 and confirm your parcel's zoning district on the effective zoning map9.
  2. Ask whether the lot is in the 100-year floodplain; if so, a floodplain permit review by the City Planner comes first6.
  3. Ask the Utilities Department whether public sewer reaches the lot; if it does not, plan a private system with a written city permit5.
  4. Contact Miami County Public Health about septic site evaluation and permits19.
  5. Apply for your permits through the city's GovWell portal4.
  6. If you divide the lot, take the plat to the Planning Commission11.

What stays with Miami County, and what to check before you buy

Septic and well oversight sits with the county health district rather than the city's planning office19. For land outside Piqua, the county's rules differ: the Miami County page covers unincorporated land, where the county's own floodplain resolution applies20.

For costs, Miami County's effective property tax rate is 1% and its median property tax bill is $2,106 per year2122. The typical home value is $273,78223.

Watch-outs

  • Search results for Piqua rules often show Miami County pages, which apply to unincorporated land and not to a lot inside Piqua24.
  • We could not confirm Piqua's rules on RV living, tiny homes, accessory dwellings or minimum lot and home size; ask the Planning and Zoning Division8.
  • We could not confirm whether the city or the county reviews and inspects new house plans inside Piqua, so ask before you sign a purchase contract12.

Sources

  1. Codes | Piqua, OH (Piqua), quoted and re-checked
  2. Codes | Piqua, OH (Piqua), quoted and re-checked
  3. Piqua Code § 51.30, Private Sewage Systems (Piqua), quoted and re-checked
  4. Permits / Applications | Piqua, OH (Piqua), quoted and re-checked
  5. Piqua Code § 51.31, Application for Construction Permit (Piqua), quoted and re-checked
  6. Floodplain Permit Application (Piqua), quoted and re-checked
  7. Chapter 3701-28 | Private water systems (Ohio statewide rule), quoted and re-checked
  8. City of Piqua Planning and Zoning Division (piquaoh.gov)
  9. Piqua Code of Ordinances, Title XV: Land Usage (Piqua), quoted and re-checked
  10. Planning & Zoning | Miami County Ohio, quoted and re-checked
  11. Permits / Applications | Piqua, OH (Piqua), quoted and re-checked
  12. Section 3791.04 | Submission of plan - approvals - prohibition - fine (Ohio statewide rule), quoted and re-checked
  13. Miami County Building Regulations (2026 county census)
  14. Piqua Code § 51.30, Private Sewage Systems (Piqua), quoted and re-checked
  15. Rule 3745-42-07 | Best available technology for connection into sanitary sewers and centralized collection and treatment (Ohio statewide rule), quoted and re-checked
  16. Rule 3701-29-09 | Site review and permits for STS installation and operation (Ohio statewide rule), quoted and re-checked
  17. Miami County Public Health (2026 county census)
  18. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  19. Miami County Public Health - Environmental Health (miamicountyhealth.net)
  20. Planning & Zoning | Miami County Ohio, quoted and re-checked
  21. Effective property tax rate: Bolthole Index county data
  22. Median property tax bill: Bolthole Index county data
  23. Typical home value (Zillow): Bolthole Index county data
  24. Planning & Zoning, quoted and re-checked

Written October 24, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Answers from the rulebook for Piqua

Piqua’s own rules

  • Building permitRequired

    New garages and listed accessory construction within Piqua city limits.

    • The cited city guidance lists fences, pools, sheds, garages, sidewalks, decks, driveways, and additional parking as requiring permits.
    “Permits are required for any new fence, pool, shed, garage, sidewalk, deck, driveway, additional parking created on property, etc.”
  • Building code adoptedAdopted (with conditions)

    Building work governed by Piqua's adopted Development Code within city limits.

    • The referenced additional codes and standards are adopted through Development Code § 1.1.9.
    “Additional codes and standards have been adopted by reference in Section 1.1.9 of the Development Code.”
  • Local zoningPresent (with conditions)

    Construction and land use within Piqua city limits.

    • The City Commission passed Ordinance O-2-23 on April 18, 2023.
    • The Development Code took effect May 18, 2023.
    “The Development Code provides minimums standards for construction and land use within the city and helps guide development toward the stated goals of the community’s plans.”
  • Zoning districtsPublished (with conditions)

    Zoning districts inside Piqua city limits.

    • The code directs users to the effective zoning map.
    “To find the effective zoning map: https://piquaoh.gov/550/Development-Code”
  • Who permits septicLocal (with conditions)

    Private wastewater disposal systems inside Piqua city limits.

    • The written permit is signed by the Utilities Department.
    • The city may require plans, specifications, and other information.
    “Before beginning construction of a private wastewater disposal system, the owner shall first obtain a written permit signed by the Utilities Department.”
  • Septic permitRequired

    Construction of a private wastewater disposal system inside Piqua city limits.

    • A written permit signed by the Utilities Department must be obtained before construction.
    • The application must use the city form and be supplemented by plans, specifications, and other information the Utilities Department deems necessary.
    “Before beginning construction of a private wastewater disposal system, the owner shall first obtain a written permit signed by the Utilities Department.”
  • Off-grid sanitationLimited

    Private wastewater disposal systems serving buildings inside Piqua city limits.

    • Allowed only where public sanitary sewer is not available under § 51.15.
    • The building sewer must connect to a private wastewater disposal system complying with the subchapter.
    • Construction requires a written Utilities Department permit before work begins.
    “Where a public sanitary sewer is not available under the provisions of § 51.15, the building sewer shall be connected to a private wastewater disposal system complying with the provisions of this subchapter.”
  • Mandatory utility hookupConditional

    Building sewers for properties inside Piqua city limits where public sanitary sewer is not available under Piqua Code § 51.15.

    • When public sanitary sewer is not available under § 51.15, the building sewer must connect to a private wastewater disposal system complying with the subchapter.
    “Where a public sanitary sewer is not available under the provisions of § 51.15, the building sewer shall be connected to a private wastewater disposal system complying with the provisions of this subchapter.”
  • Subdividing landRegulated (with conditions)

    Plat and subdivision proposals inside Piqua city limits.

    • The city's Planning Commission process includes Plat & Subdivision Review.
    “Planning Commission - Plat & Subdivision Review, Special Use, Zoning Designation, ROW designation”
  • Driveway accessRequired

    New driveways and additional parking created on property inside Piqua city limits.

    • The city lists new driveways and additional parking among work requiring permits.
    “Permits are required for any new fence, pool, shed, garage, sidewalk, deck, driveway, additional parking created on property, etc.”
  • Building in a floodplainRequired

    Construction and non-construction activity within Piqua's 100-year floodplain.

    • Activity must be reviewed by the City Planner through a floodplain permitting process.
    • The city directs applicants to verify whether the site is in the 100-year floodplain before submitting an application.
    “both construction and non-construction activity to take place within the 100-year floodplain must be reviewed by the City Planner via a floodplain permitting process.”
  • Permit processPublished (with conditions)

    Planning, zoning, engineering, and contractor-registration permits inside Piqua city limits.

    • The city uses GovWell for Planning and Zoning, Engineering, and Contractor Registration permits.
    • Hard-copy applications are also listed on the city page.
    “The City of Piqua utilizes GovWell for Planning and Zoning, Engineering, and Contractor Registration permits and uses FormStack for Special Event Permits. See below for hard copy applications. Online applications are at the links below.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Piqua or Miami County directly.

  • Owner-builder exemption — Owner-built residential construction inside Piqua city limits.
  • Inspections — Building construction inside Piqua city limits.
  • Certificate of occupancy — Occupancy of buildings inside Piqua city limits.
  • Minimum dwelling size — Single-family residential districts inside Piqua city limits.
  • Minimum lot size — Single-family residential districts inside Piqua city limits.
12 more unanswered
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Septic inspection
  • Well permit
  • Agricultural exemption
  • Short-term rentals

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Piqua publishes no rule on the point, not that none exists. Miami County’s page lists the county offices to call.

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