Building permits, zoning and land rules in Montgomery County, Ohio
39Index Score / 100 #77 of 88 in Ohio
Unincorporated Montgomery County, Ohio requires building permits for covered construction through Montgomery County Building Regulations12. Township governments control zoning on unincorporated land; obtain zoning approval from the township where the property lies34. Public Health - Dayton & Montgomery County handles household septic permitting and maintenance oversight56.
At a glance
Building permit
Required for covered construction in every township and in municipalities served by County Building Regulations7
Zoning permit
Local approval: townships control zoning on unincorporated land; cities and villages handle their local zoning348
Septic
A permit is required for a new system or the replacement or alteration of an existing system9
Owner-builder
Homeowners need not register to work on their own property in the county's enforcement jurisdiction, but this is not an exemption from permits or inspections1011
Private well
A permit is required for a new, upgraded, altered, or abandoned-and-sealed private water system12
RV living
Not confirmed for private land; ask the township zoning office for the parcel4
Tiny home
No countywide occupancy rule confirmed; ask the township how the proposed home is classified4
Occupancy
A finished building, tenant space, or dwelling unit under county building review needs a Certificate of Occupancy13
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Do you need a building permit in Montgomery County, Ohio?
Montgomery County Building Regulations requires building permits for covered construction on unincorporated land and in municipalities served by the department17. New construction, additions, alterations, basement finishing, garage conversions, and decks fall within the county’s enforcement scope; construction may begin only after the building permit is issued1415. Single-story detached residential sheds of no more than 200 square feet may be exempt from building permits, but must still meet residential code standards2. A zoning certificate declaring the building’s agricultural use qualifies it for the applicable Ohio building-code exemption16.
County-regulated construction needs rough inspections before work is covered and final inspections after completion; footings, slabs, and gas or electric trenches need inspection before concrete or backfill17. Inspectors visit at various construction stages, and approved permit documents must be on site during each inspection1718. Projects near a FEMA-designated floodplain may also require a Floodplain Construction Permit19.
Who issues building permits in Montgomery County, Ohio?
Montgomery County Building Regulations Division handles building permits and inspections in all county townships and contracted cities and villages1. The office is at 451 W. Third St., 10th Floor, Dayton, OH 45422; call (937) 225-4622 or email build@mcohio.org20. Springboro and Carlisle, cities mainly in Warren County that extend into Montgomery County, have local building-permit services; Carlisle contracts with Springboro for building plan review and inspections212223. Household septic permitting for Montgomery County properties remains with Public Health - Dayton & Montgomery County56.
Homeowners working on their own property in Montgomery County’s enforcement jurisdiction need not register as contractors, but required building permits and inspections still apply; Dayton, Centerville, Kettering and other jurisdictions may have different contractor-registration requirements101117. Obtain required zoning and septic approvals before filing the county building application24. Effective July 1, 2026, canceling a county inspection after 2:00 p.m. the preceding day carries a $125 fee; the county publishes a fee schedule for other charges25.
Does Montgomery County, Ohio have zoning?
Township governments control land use and zoning on unincorporated Montgomery County land; the County Planning Commission’s recommendations on township zoning changes are advisory and non-binding3. Zoning permits for new work and most building-use changes come from the township, city, or village where the building is located48. Dayton and Riverside have their own zoning rules2627. Springboro and Carlisle, cities mainly in Warren County that reach into Montgomery County, administer their own zoning2823. Local zoning does not replace Public Health - Dayton & Montgomery County’s household septic permitting for Montgomery County properties56.
We could not confirm a uniform Montgomery County rule for setbacks, minimum lot or dwelling size, lot coverage, building height, accessory dwellings, or short-term rentals; ask the parcel’s township or municipal zoning office for its current resolution and map4. The County Planning Commission reviews subdivisions in unincorporated townships under the Subdivision Regulations and County Thoroughfare Plan, which sets future road rights of way and intersection and driveway standards29. Health, sanitary, zoning, and well-water compliance may be required before subdivision approval30. We could not confirm a driveway permit requirement for every parcel; ask County Building Regulations which access approvals the project needs3120.
How do septic permits work in Montgomery County, Ohio?
Public Health - Dayton & Montgomery County issues household septic permits and oversees maintenance under state and local rules, and registers the contractors who may work in the county532. Installing, replacing, or altering a Montgomery County household septic system requires a septic permit; tank cleaning and minor repairs do not9. Homeowners also need a separate household sewage treatment system operation permit6. For a new home, arrange the health-board site review, soil evaluation, and system design before applying for the installation permit33. Call 937-225-4428 or visit the Reibold Building at 117 S Main Street in Dayton34.
USDA’s countywide soil measure rates 0% of Montgomery County soils “not limited” for conventional drain fields; that signals the need for a site evaluation or potentially an engineered system, rather than proving septic is impossible on a parcel35. Only systems meeting specified criteria need annual inspection by a registered service provider, and the vast majority of systems do not; NPDES systems also require annual effluent sampling3637. Where an accessible, available public sewer meets Ohio’s connection conditions, connection is required instead of private sewage disposal38.
Can you live in an RV or tiny home in Montgomery County, Ohio?
We could not confirm a countywide rule allowing or prohibiting full-time RV living on private land in Montgomery County. The Ohio campground rule governs RVs placed in licensed campgrounds and temporary campgrounds, not ordinary private-parcel occupancy, so it does not answer whether an RV may be used as a residence on a particular township parcel39. Ask the township zoning office how it treats RV storage, temporary occupancy during construction, utility connections, and camping before buying land for that plan4.
We also could not confirm a single Montgomery County rule for tiny-home occupancy or minimum dwelling size. A tiny home built as a dwelling still faces the applicable local zoning classification and the building-permit process47. A finished dwelling under Montgomery County Building Regulations requires a Certificate of Occupancy after required inspections pass; continuing an existing legally approved use without changing that use does not require a new certificate13. A zoning certificate of occupancy does not replace the building certificate40. A manufactured home follows a separate state inspection path and generally cannot be occupied until an inspector issues the inspection seal, subject to the temporary-occupancy exception and local siting rules41.
What is the order of approvals for a Montgomery County home?
Identify the township, city, or village and obtain the zoning permit from that jurisdiction before the county building application424.
Ask Public Health or the local utility whether public sewer and water serve the lot and what tap-in authorization is required42. An accessible and available sanitary sewer must be used when Ohio's connection conditions are met38.
For private septic, complete the site review, soil evaluation, and system design, then obtain the permit from Public Health - Dayton & Montgomery County336.
For a private well, obtain the permit required for a new, upgraded, altered, or abandoned-and-sealed private water system; minor repairs do not require one, but well abandonment requires inspection and an inspection permit1243.
Submit the application, plans, fees, and prior approvals to the correct building department, and wait for the issued permit before construction begins2415.
Schedule rough inspections before covering work and final inspections after completion, then obtain the Certificate of Occupancy before using the finished dwelling4440.
What should you check before buying land in Montgomery County, Ohio?
Confirm the local jurisdiction first, then obtain its zoning map and resolution because zoning permits come from the township, city, or village where the property is located4. Verify access and ask the County Planning Commission whether a proposed lot split or subdivision triggers review; the commission handles subdivisions in unincorporated townships, and its thoroughfare plan sets subdivision standards for intersections and driveways3031. Check whether the house site is near a FEMA-designated floodplain because development there may require a Floodplain Construction Permit19.
Before choosing a house site, obtain the septic site review and soil evaluation required for a new system33. Ask Public Health or the local purveyor about water, sewer, and tap-in authorization, and confirm whether sewer connection is required4238. New, upgraded, altered, and abandoned-and-sealed private water systems require permits, while minor repairs do not12. Finally, check carrying costs: the effective property-tax rate is about 1.8%, and the median annual property-tax bill is about $2,9754546.
Watch-outs
A zoning permit must come from the township, city, or village where the building is located, so do not treat a Montgomery County mailing address as proof of the applicable zoning rules4.
A septic installation permit does not replace the separate household sewage treatment system operation permit; ask Public Health - Dayton & Montgomery County about the system’s maintenance obligations65.
Do not occupy a finished dwelling under County Building Regulations until the required Certificate of Occupancy has been issued40.
We could not confirm one private-land RV or tiny-home occupancy rule across Montgomery County; ask the parcel's township zoning office before relying on temporary or full-time occupancy4.
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.
Montgomery County highlighted among the Ohio counties · colored by Index score
How Montgomery County scores
Seclusion12100% ev.
Self-Sufficiency64100% ev.
Admin Boringness45100% ev.
Durability82100% ev.
Property Autonomy35100% ev.
Carry Cost70100% ev.
Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →
$207kTypical home
1.8%Property tax
$7,918Land / acre
41.6"Annual rain
1.6% of yrsSevere drought
4.8 / yr (+4.7)Mid-century 100°F days
13.3 daysMid-century dry spell
1.76" (+8.3%)Mid-century 1-day rain
1.84×Wildfire change factor
100%Forward climate coverage
$1,296Home insurance / yr
1.7% / yrInsurance growth
0.85%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
662,067People within 30 min
8,850,922People within 2 hr
557,727Radius comparison (15 mi)
1,157People / sq mi
0.9%Federal land
96.5%Land at 15% slope or less
0%Soils rated "not limited" for septic (strict USDA rating)
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Cities and towns in Montgomery County
Inside a city, town or township here, that government usually sets zoning and may issue its own building permits; the county’s rules above cover land outside them.
Not yet researched: Brookville · Butler Township · Centerville · Clay Township · Clayton · Village of Farmersville · German Township · Harrison Township · Huber Heights · Jackson Township · Jefferson Township · Kettering · Miami Township · Miamisburg · Moraine · Village of New Lebanon · Perry Township · Village of Phillipsburg · Trotwood · Union · Washington Township · West Carrollton
Answers from the rulebook for Montgomery County
What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.
Montgomery County rules
Building permitRequired
Building work and occupancy approvals within Montgomery County Building Regulations jurisdiction.
Certain minor residential construction, including single-story detached sheds not exceeding 200 square feet, is exempt from building permits.
Residential permit applications require drawings describing the proposed work, code compliance, and a completed application.
Some cities and villages may have different jurisdictional arrangements.
minor detached shed floor area threshold: <= 200 square feet (single-story detached residential sheds may be exempt)
“Certain minor residential construction has been deemed exempt from building permits, such as single story detached sheds that do not exceed 200 square feet in floor area. But such work must still be installed in accordance with residential code standards.”
2 more reviewed findings on this topic
Required — Building construction subject to Montgomery County Building Regulations.
“When all of the documents are in compliance and fees are paid, a Permit is issued. Once the building permit is obtained from our office, construction can commence.”
Required — Residential and commercial construction within Montgomery County Building Regulations jurisdiction, including county townships and contracted municipalities.
“shall first make application to the residential building official of a certified residential building department and obtain the required approval.”
Homeowners performing work on their own property in areas under County building-code enforcement jurisdiction.
This is a registration exemption, not a blanket exemption from building permits or inspections.
City of Dayton, Centerville, Kettering, and other jurisdictions may have different contractor-registration requirements.
“Homeowners do not need to be registered to work on their own property in areas under our building code enforcement jurisdiction.”
Building code adoptedAdopted (with conditions)
Buildings within Montgomery County Building Regulations jurisdiction.
The County serves all townships and several cities and villages; other jurisdictions may administer building-code enforcement.
The County also enforces flood-damage-prevention and Wright-Patterson airport-zoning regulations.
“Per local resolution, Montgomery County regulates new construction, additions, and alterations of these dwellings and their accessory structures, including work such as finishing basements, converting garages to living spaces, and deck construction.”
One more reviewed finding on this topic
Adopted (with conditions) — Building-code enforcement by Montgomery County Building Regulations in its jurisdiction.
“Per local resolution, Montgomery County regulates new construction, additions, and alterations of these dwellings and their accessory structures, including work such as finishing basements, converting garages to living spaces, and deck construction.”
InspectionsRequired
Commercial and residential construction within Montgomery County Building Regulations jurisdiction.
Rough inspections are required before construction is covered up, and final inspections are required after work is complete.
Electrical, mechanical, and other subtrade inspections typically must be approved before the main permit inspection.
Footings, slabs, and gas or electric trenches must be inspected before concrete or backfill.
“Both Commercial and Residential work must have rough inspections of construction progress before work is covered up and final inspections after work is complete.”
2 more reviewed findings on this topic
Required — Building work subject to Montgomery County Building Regulations.
“Both Commercial and Residential work must have rough inspections of construction progress before work is covered up and final inspections after work is complete.”
Required — Construction subject to Montgomery County Building Regulations.
“Our inspectors need to visit the project to confirm compliance at various stages.”
Certificate of occupancyRequired
Building use approval for projects requiring Montgomery County Building Regulations certificates of occupancy.
Certificates of occupancy issue after work is complete and required inspections, including other-agency inspections such as plumbing and fire, are approved.
Temporary certificates may be granted only when the occupied spaces are inspected and safe and permits have been obtained or applied for.
A zoning certificate of occupancy does not replace the county building certificate of occupancy.
“Each finished building, tenant space, or dwelling unit requires a Certificate of Occupancy.”
One more reviewed finding on this topic
Required — Finished buildings, tenant spaces, and dwelling units subject to Montgomery County Building Regulations.
“Each finished building, tenant space, or dwelling unit requires a Certificate of Occupancy.”
Local zoningVaries (with conditions)
Aggregate local-zoning status across Montgomery County townships and municipalities, including unincorporated township lands and incorporated jurisdictions.
The Montgomery County Planning Commission provides platting and subdivision review for unincorporated township lands.
The Planning Commission's zoning recommendations to townships are advisory and non-binding.
Land-use and zoning authority rests with each township under Ohio Revised Code Chapter 519; incorporated municipalities may administer their own zoning.
“Land use and zoning authority, however, rest solely with each township under ORC Chapter 519.”
2 more reviewed findings on this topic
Varies (with conditions) — Aggregate zoning administration across unincorporated Montgomery County and incorporated municipalities.
“Zoning permits must be obtained for all new work and most changes of use of buildings. They are obtained from the township, city, or village in which the building is located.”
Varies (with conditions) — Aggregate local zoning across unincorporated Montgomery County; township governments administer local zoning, while municipalities may administer their own rules.
“Zoning permits must be obtained for all new work and most changes of use of buildings. They are obtained from the township, city, or village in which the building is located.”
Who permits septicMixed (with conditions)
Household sewage treatment systems in Montgomery County.
Public Health administers local permitting, maintenance oversight, and contractor registration.
The program operates under state and local regulations and a state-mandated operation-and-maintenance framework.
“PHDMC is responsible for overseeing the proper maintenance of any HSTS.”
One more reviewed finding on this topic
Mixed (with conditions) — Household sewage treatment systems in Montgomery County under Public Health – Dayton & Montgomery County.
“A permit is needed to install a new system and to replace or alter an existing system. Tank cleaning or a minor repair does not require a permit.”
Septic permitRequired
New, replacement, or altered household sewage treatment systems in Montgomery County.
A permit is not required for tank cleaning or a minor repair.
Systems are subject to state and local regulations.
“A permit is needed to install a new system and to replace or alter an existing system. Tank cleaning or a minor repair does not require a permit.”
One more reviewed finding on this topic
Required — Installation of a new household sewage treatment system and replacement or alteration of an existing system.
“A permit is needed to install a new system and to replace or alter an existing system. Tank cleaning or a minor repair does not require a permit.”
Septic inspectionLimited
Operation and maintenance inspections for HSTS in Montgomery County.
Annual inspection through a registered service provider is required only when the system meets specified criteria; most systems do not.
NPDES systems require annual effluent sampling.
Public Health may perform compliance inspections when required reports are not submitted.
inspection reporting deadline: <= 60 days (registered providers submit inspection reports and pumping slips after service)
“An inspection (service contract) is required only if you meet certain criteria, and the vast majority of systems don’t fall under these criteria.”
One more reviewed finding on this topic
Limited — HSTS operation and maintenance inspections.
“An inspection (service contract) is required only if you meet certain criteria, and the vast majority of systems don’t fall under these criteria. A service contract requires homeowners to have an annual HSTS inspection by a service provider registered in Montgomery County.”
Well permitRequired
New, upgraded, altered, or abandoned-and-sealed private water systems in Montgomery County.
Minor repairs to existing systems do not require a permit.
Older substandard systems must be upgraded when repair work is performed, and that upgrade requires a permit.
“A permit is required when a new water system is installed or when an existing system is upgraded, altered or abandoned and sealed. Minor repairs to existing systems do not require a permit.”
One more reviewed finding on this topic
Required — Design and installation of private wells associated with household sewage treatment oversight.
“Household Sewage Treatment System Program ensures that septic systems and private wells are designed and installed under permit and in accordance with state and local regulations.”
Mandatory utility hookupConditional
On-premise sewer and water systems in areas served by Public Health – Dayton & Montgomery County's plumbing program.
The plumbing program is responsible for on-premise sewer and water systems in many areas of the county, not all areas.
Plumbing inspection services exclude Centerville, Dayton, Oakwood, and Kettering.
Public Health continues to issue permits and provide oversight for Centerville on-premise sewer, water, and irrigation/deduct-meter installations.
Authorization is required for on-premise tap-in permits.
Applicants should consult Public Health or the local sewer and water purveyor.
Residential septic-system installations or alterations require Public Health sewage-program approval before plumbing permits issue.
For public-water connections, listed corrections include required backflow protection, a pressure-reducing valve when supply exceeds 80 PSI, and no cross-connections between public and private supplies.
water supply pressure threshold: > 80 PSI (Pressure reducing valve required when water supply exceeds this threshold)
“Authorization is required for on-premise tap-in permits when performing sewer, water and irrigation/deduct meter installations. It is recommended to call Public Health or your local sewer and water purveyor for assistance.”
Subdividing landRegulated (with conditions)
Subdivision and land divisions in unincorporated township lands of Montgomery County.
The Planning Commission operates under County Subdivision Regulations.
Health, sanitary, zoning, and well-water-service compliance may be required before approval.
The source describes the County Planning Commission as platting and subdivision authority for unincorporated lands.
“We are the platting and subdivision authority for the unincorporated lands of Montgomery County, including responsibility for the review of proposed subdivisions of land within unincorporated townships.”
One more reviewed finding on this topic
Regulated (with conditions) — Proposed subdivisions of land in unincorporated Montgomery County townships.
“We are the platting and subdivision authority for the unincorporated lands of Montgomery County, including responsibility for the review of proposed subdivisions of land within unincorporated townships.”
Driveway accessLimited
Subdivision-related intersections and driveways in unincorporated Montgomery County townships.
The County Thoroughfare Plan sets standards for intersections and driveways.
The cited page does not establish a universal driveway permit requirement for every parcel or existing driveway.
“That process is based upon the Subdivision Regulations, and the County Thoroughfare Plan, which sets future road rights of way and standards for intersections and driveways.”
Building in a floodplainRequired
Building-permit review for projects near FEMA-designated floodplains within Montgomery County Building Regulations jurisdiction.
The county reviews FEMA-designated floodplain proximity and any necessary flood-proofing.
The county page separately identifies flood-damage-prevention regulations as enforced by Building Regulations.
“must obtain a Floodplain Construction Permit”
Permit feesPublished (with conditions)
Montgomery County Building Regulations inspection fees.
Effective July 1, 2026, a $125 fee applies to inspections canceled after 2:00 p.m. on the day before the scheduled inspection date.
The page directs applicants to the updated fee schedule for other fees.
late inspection cancellation fee: 125 USD (inspection canceled after 2:00 p.m. on the day prior to the scheduled inspection date)
“Effective July 1, 2026, a $125 fee will apply to all inspections canceled after 2:00 p.m. on the day prior to the scheduled inspection date.”
Permit processPublished (with conditions)
Building-permit applications handled by Montgomery County Building Regulations.
Applicants must obtain necessary prior approvals such as zoning certificates and septic permits.
Applications require fees, certificates, and documentation; the county reviews zoning, parcel, floodplain, airport-zoning, energy, and Residential Code of Ohio compliance.
Construction may commence after permit issuance.
Construction must be completed within twelve months; a permit extension of up to one additional year may be granted upon timely written request.
“files an Application for a building permit”
County-wide zoningPresent
Land in unincorporated Montgomery County is zoned by township zoning resolutions (municipalities zone their own areas), with the County Planning Commission serving as platting authority and reviewing zoning changes.
General rules adopted by a city or village planning commission, platting commissioner, or village legislative authority for plats and subdivisions within its jurisdiction.
The rule applies to municipal or village planning authorities operating under Ohio Revised Code section 711.09.
The statute limits, rather than establishes, the local minimum lot area; local zoning and other subdivision rules may impose additional requirements where authorized.
maximum local minimum lot area: <= 4800 square feet (The rule concerns city or village planning-authority subdivision rules under section 711.09.)
“but shall not impose a greater minimum lot area than forty-eight hundred square feet.”
SetbacksDistrict specific (with conditions)
Township zoning regulation of setback building lines for agricultural buildings or structures on lots greater than one acre but not greater than five acres in qualifying platted subdivisions or qualifying areas of fifteen or more contiguous lots.
The local regulation must arise under a township zoning resolution or amendment.
The subdivision or area must meet the statutory qualification in section 519.21(B).
The statute does not provide a statewide numeric setback distance.
Township zoning may not regulate agriculture, agricultural buildings or structures, or dairying and animal and poultry husbandry on lots greater than five acres under division (B).
lot size lower threshold: > 1 acre · lot size upper threshold: <= 5 acres
“not greater than five acres by: set back building lines;”
Building heightDistrict specific (with conditions)
Township zoning regulation of height for agricultural buildings or structures on lots greater than one acre but not greater than five acres in qualifying platted subdivisions or qualifying areas of fifteen or more contiguous lots.
The local regulation must arise under a township zoning resolution or amendment.
The subdivision or area must meet the statutory qualification in section 519.21(B).
The statute does not provide a statewide numeric height limit.
Township zoning may not regulate agriculture, agricultural buildings or structures, or dairying and animal and poultry husbandry on lots greater than five acres under division (B).
lot size lower threshold: > 1 acre · lot size upper threshold: <= 5 acres
“Buildings or structures incident to the use of land for agricultural purposes [...] height;”
Manufactured homesLimited
Occupancy of manufactured homes installed in Ohio and regulated under Chapter 4781 of the Revised Code and implementing rules.
A manufactured home generally may not be occupied until the inspector issues the inspection seal.
The inspection seal must be paid for when the permit is issued.
A temporary occupancy permit may provide the applicable exception under Rule 4781-7-01(C).
The home must meet Ohio manufactured-home installation standards; local ordinances and other regulations may also apply to site placement.
“Except as provided in paragraph (C) of this rule, no manufactured home shall be occupied until the inspector has issued the inspection seal.”
Agricultural exemptionConditional
Buildings or structures incident to agricultural use of the land, and a specific building or structure declared by a county or township zoning inspector to be used in agriculture.
The exemption in section 3781.06 applies to buildings or structures incident to agricultural use of the land.
The buildings or structures must not be used in the business of retail trade.
A building or structure is not considered used in the business of retail trade if fifty per cent or more of gross income from sales of products in the building or structure comes from products produced or raised in a normal crop year on farms owned or operated by the seller.
Under section 3781.061, a county zoning inspector under section 303.16 or township zoning inspector under section 519.16 must issue a zoning certificate declaring the specific building or structure is to be used in agriculture for the additional exemption described there.
The cited section 3781.06 is effective January 1, 2025; section 3781.061 is effective October 17, 2019.
retail-sales agricultural-product threshold: >= 50 percent of gross income (Products must be produced or raised in a normal crop year on farms owned or operated by the seller.)
“issues a zoning certificate that declares a specific building or structure is to be used in agriculture, such building is not subject to sections”
3 more reviewed findings on this topic
Conditional — Agricultural buildings or structures in Montgomery County where the statutory conditions apply.
“Whenever a county zoning inspector under section 303.16 of the Revised Code, or a township zoning inspector under section 519.16 of the Revised Code, issues a zoning certificate that declares a specific building or structure is to be used in agriculture, such building is not subject to sections 3781.06 to 3781.20, 3781.40, or 3791.04 of the Revised Code.”
Available (with conditions) — Qualifying parcel divisions processed under rules adopted pursuant to Ohio Revised Code section 711.133.
“Rules adopted under this section shall exempt from the approval requirements of this section parcels of land to be used only for agricultural”
Available (with conditions) — Buildings or structures incident to agricultural use of the land in Ohio.
“incident to the use for agricultural purposes [...] provided those buildings or structures are not used in the business of retail trade.”
Campground & park staysLimited
Roadside camping at designated Ohio state forests along public roads maintained by the division of forestry.
Permitted only at designated state forests, along public roads maintained by the division of forestry, during certain legally established hunting seasons.
The chief of the division of forestry must authorize the applicable season.
Only self-contained camping units meeting Rule 1501:3-3-04 are permitted unless restroom facilities are available.
Vehicles must be parked sufficiently far off the roadway not to present a hazard and may not block roads, trails, or gated access areas.
Other restrictions in Rule 1501:3-3-06 apply.
“Roadside camping is permitted at designated state forests, along public roads maintained by the division of forestry, during certain legally established hunting seasons as authorized by the chief of the division of forestry.”
2 more reviewed findings on this topic
Limited — Occupancy and placement of recreational vehicles in Ohio-licensed campgrounds and temporary campgrounds.
“Recreational vehicles or portable camping units shall be parked only on sites that have been verified as complying with plans approved by the director, or in the case of a temporary campground, by the licensor;”
Prohibited — Camping in Ohio state forests outside areas, sites, or campgrounds designated by the chief of the division of forestry or an authorized agent.
“No person shall camp in a state forest except in areas, sites or campgrounds designated by the chief of the division of forestry or authorized agent.”
county zoning authorityGeneral
County commissioners may adopt zoning resolutions regulating building, structures, land uses, and districts or zones in unincorporated territory statewide.
The authority is exercised by resolution and must be in accordance with a comprehensive plan.
The authority applies to unincorporated territory of the county.
The statute begins with the exception phrase “Except as otherwise provided in this section,” so the limitations in ORC Chapter 303 apply.
For nonresidential property only, the county may regulate height, bulk, number of stories, size, lot coverage, yards, courts, open spaces, and population density.
Agricultural uses and agricultural buildings are subject to the limitations in ORC 303.21; the statute also contains limitations for public utilities, railroads, telecommunications towers, alcoholic-beverage sales, oil and gas drilling, and permanently sited manufactured homes.
Activities regulated under ORC Chapters 1513 and 1514 may be regulated only in the interest of public health or safety, and Chapter 1514 activities must be provided for as permitted or conditional uses as specified by ORC 303.02.
“the board of county commissioners may regulate by resolution, in accordance with a comprehensive plan”
county building authorityGeneral
County commissioners may adopt and enforce local residential building regulations in unincorporated areas and may operate certified county building departments that enforce state residential and nonresidential building codes, accept and approve plans, and conduct inspections.
Local residential building regulations may be enforced within the unincorporated area or within districts established in the unincorporated area.
A local residential building regulation may not differ from the state residential building code unless it addresses subject matter not addressed by that code or is adopted under ORC 3781.01.
An existing structures code must concern subject matter not addressed by, and may not conflict with, the state residential building code.
County building departments may enforce state codes only for the types of buildings and subject matters for which they are certified.
Certification permits enforcement authority, plan approval, and inspections; the certification application identifies whether it covers residential or nonresidential buildings and whether residential certification covers new construction only or also repair and alteration.
The board may adopt flood-hazard, Lake Erie coastal-erosion, and drainage regulations, subject to the statutory limits and exceptions in ORC 307.37.
Local regulations, codes, or amendments require public hearings at not fewer than two regular or special board sessions; they take effect on the thirty-first day after adoption.
Regulations adopted under ORC 307.37 generally do not affect buildings or structures existing, or under construction, before adoption, except as provided for an existing structures code.
The state residential building code is effective as a uniform requirement in areas with a building department certified to enforce it.
“The board of county commissioners may adopt local residential building regulations governing residential buildings as defined in section 3781.06 of the Revised Code”
One more reviewed finding on this topic
General — Ohio boards of county commissioners adopting and enforcing local residential building regulations in unincorporated county areas, including districts established within those areas, and administering state building codes when certified.
“The board of county commissioners may adopt local residential building regulations governing residential buildings”
Inside cities and towns in Montgomery County
Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.
Homeowners performing work on their own property in areas under Montgomery County Building Regulations Division building-code enforcement jurisdiction.
Homeowners do not need to be registered for such work.
The rule applies only in areas under the Division's building-code enforcement jurisdiction.
Other jurisdictions, including Dayton, Centerville, and Kettering, may have different requirements.
A building permit may still be required for the work.
“Homeowners do not need to be registered to work on their own property in areas under our building code enforcement jurisdiction.”
Set by your township or city, not the county
In Ohio, zoning is adopted by each township or city, so Montgomery County has no county-wide answer on these. Find your township or city in the list of places on this page, or call its clerk or zoning administrator.
Zoning districts
Minimum dwelling size
Lot coverage
Living in an RV
Camping on your land
Tiny homes
Accessory dwellings
Short-term rentals
Still unanswered
We looked and could not find an official answer yet. Silence is not permission — ask the county directly.
Off-grid sanitation — Off-grid sanitation systems in Montgomery County.
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.
Living off-grid in Montgomery County, Ohio
Is Montgomery County a good place to live off-grid or homestead?
Montgomery County scores 39/100 on the Bolthole Index, a marginal county profile. Its strengths: mixed durability signals and manageable long-term carry cost. Watch-outs: about 662,067 people within a 30-minute drive and a weaker property-autonomy legal backdrop.
Do you need a building permit in Montgomery County, Ohio?
Montgomery County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Public Health - Dayton & Montgomery County. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.
How much does land cost in Montgomery County, Ohio?
Land in Montgomery County runs about $7,918 per acre, based on the latest county data.
What is the water situation in Montgomery County?
Montgomery County gets about 41.6" of rain a year, with severe drought in roughly 1.6% of years.
How remote is Montgomery County?
A representative private-land location has about 662,067 people within a 30-minute drive and 8,850,922 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.
