Zoning, building permits and septic rules in New Carlisle, Ohio

At a glance

Zoning

City zoning permit required before building, moving or altering a structure¹

Building permit

Most new construction needs a Clark County building permit in addition to the city zoning permit²⁴

Zoning permit fee

$135 for a new 1- or 2-family home⁵

Zoning review time

Typically 5 to 10 working days; up to 30 days⁶

Septic

Permit through the Clark County Combined Health District³⁷

Who to call

Contact details are copied from each office’s official page and were checked against it on October 14, 2026.

Does New Carlisle, Ohio have zoning, and what does it mean for building?

Yes. The City of New Carlisle runs its own zoning, and no building or structure may be erected, moved, added to or structurally altered without an approved zoning permit¹. The city's Planning Department issues that permit and has up to 30 days to approve or disapprove an application¹.

The city's published form also asks for a site plan and tells applicants to check plat covenants and easements first⁶. Setbacks, minimum lot sizes and dwelling-size rules depend on the zoning district, and we could not confirm the figures for New Carlisle's districts; ask the Planning Department for the district your parcel sits in before you buy.

We also could not confirm rules for RVs, tiny homes or manufactured homes inside city limits. The Clark County zoning code's RV and tiny-home provisions cover only the county-zoned townships, not the city⁸.

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

Two separate permits are involved. The city issues the zoning permit; the Clark County Building Department issues the building permit, and most new construction may require one². The county's own guidance lists the City of New Carlisle among the places where building permits are required⁴.

The city's zoning permit for new 1- and 2-family residential construction costs $135, residential additions cost $50 plus $1 per 100 square feet, and multiple-family construction costs $80 per unit⁵. Clark County building fees are separate; its residential application fee is $42⁹.

The county takes applications through its online permit portal, and permits are not issued until required submittals are received and fees paid¹⁰. For a new house, state rules also require plan approval from the building department having jurisdiction before construction starts¹¹.

How do septic permits work in New Carlisle?

Septic permits in Clark County come from the Clark County Combined Health District, not from the city or the county building department³. The district requires a permit to install or alter a household sewage treatment system and a separate permit to operate one⁷. Ohio requires a site review, including a soil evaluation, before the board of health accepts a permit application¹².

The county's residential plan checklist asks for site approval for structures not on public sewer¹⁰. Whether a given New Carlisle lot connects to city sewer or needs its own system is something we could not confirm; ask the city and the health district's Environmental Health office. Wells are permitted by the same health district¹³.

Countywide, the soil rating context: about 14% of Clark County soils are rated not limited for a conventional drain field, so many lots need a site evaluation¹⁴.

Building a home in New Carlisle: the steps, in order

1. Call the City of New Carlisle Planning Department to confirm your zoning district and what it allows¹.
2. Confirm sewer or septic: ask the city about sewer, or apply for site approval through the Clark County Combined Health District⁷.
3. Apply for the city zoning permit with a site plan; review typically takes 5 to 10 working days⁶.
4. Apply for the Clark County building permit through the county's online permit portal¹⁰.
5. Start work within 6 months of the city's approval, or the zoning permit expires⁶.
6. Schedule inspections and bring approved plans to each one¹⁵.

What stays with Clark County, and what to check before you buy in New Carlisle?

Building permits, septic permits and well permits for New Carlisle addresses go through Clark County offices, not city hall²³. For land outside city limits, the county's own answers are on the Clark County page; inside the city, only the city's zoning rules apply.

County-level figures: the effective property tax rate is 1.2% and the median property tax bill is $1,943 per year¹⁶¹⁷. The nearest city of 100,000 or more is about 24 miles from the county center¹⁸.

Ask the Planning Department about plat covenants, easements and the zoning district before you sign⁶.

Watch-outs

• A city zoning permit and a county building permit are separate approvals, and the county's building fees are not part of the city's $135 zoning fee⁵.
• The city's zoning permit expires if work does not begin within 6 months of approval⁶.
• We could not confirm New Carlisle's setbacks, minimum lot sizes, RV or tiny-home rules, or sewer-connection requirements; the City Planning Department is the office to ask¹.

Sources

1. Application for Zoning Permit (new additions / new construction) (New Carlisle), quoted and re-checked
2. Application for Zoning Permit (new additions / new construction) (New Carlisle), quoted and re-checked
3. Sewage & Septic Systems – Clark County Health Department, quoted and re-checked
4. Does My Project Require a Permit, quoted and re-checked
5. Application for Zoning Permit (new additions / new construction) (New Carlisle), quoted and re-checked
6. Application for Zoning Permit (new additions / new construction) (New Carlisle), quoted and re-checked
7. Sewage & Septic Systems, quoted and re-checked
8. Planning & Zoning, quoted and re-checked
9. Residential Building Fee Schedule, quoted and re-checked
10. Forms & Applications, quoted and re-checked
11. Section 3791.04 | Submission of plan - approvals - prohibition - fine (2026 county census)
12. Rule 3701-29-09 | Site review and permits for STS installation and operation (Ohio statewide rule), quoted and re-checked
13. Private Water Systems: Wells, quoted and re-checked
14. 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
15. Forms & Applications, quoted and re-checked
16. Effective property tax rate: Bolthole Index county data
17. Median property tax bill: Bolthole Index county data
18. Straight-line distance from the county center to the nearest city of 100,000+ people: Bolthole Index county data

Written October 14, 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.