Bolthole Index

Genesee County, Michigan

Zoning, building permits and septic rules in Atlas Township, Michigan

Atlas Township in Genesee County, Michigan requires a building permit for any structure erected, moved or structurally altered, issued by the township Building Inspector1. The township writes and enforces its own zoning2. Septic permits come from the Genesee County Health Department, but the township Board must also approve a septic plan in writing before a building permit issues34.

At a glance

Building permit
Required for any structure, from the township Building Inspector1
Zoning
Township zoning ordinance with mapped districts across the unincorporated township2
Septic
Genesee County Health Department permits; township Board approves the plan first43
RV or mobile home as a dwelling
Only in a mobile home park, or under the ordinance's Section 3.260 requirements5
Minimum lot (RA district)
3 acres6
Minimum home size (RA district)
1,100 sq ft with a basement, 1,250 sq ft without7
Tiny homes
No tiny-home provision confirmed; ask the township8
Property tax
Genesee County effective rate about 1.4%9

Who to call

Building permits

Atlas Township Building Department

Township building permits and certificates of zoning compliance, with zoning administered under the township ordinance

810-636-6809

7386 S. Gale Road, Grand Blanc, MI 48439

Septic permits

Genesee County Health Department, Environmental Health Division (Septic Office)

Perc tests, septic permits and inspections for every address in Genesee County, including inside townships

(810) 257-3603

Genesee County Administration Building, 324 S Saginaw St, 6th Floor, Flint, MI 48502

Contact details are copied from each office’s official page and were checked against it on October 23, 2026.

Off-grid gear

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

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Does Atlas Township, Michigan have zoning, and what does it mean for RVs, tiny homes, lot size and setbacks?

Atlas Township divides all of its unincorporated area into zoning districts shown on the township Zoning Map2. Rules differ by district, so check the district of the exact parcel before you buy.

In the Residential Agricultural (RA) district, the minimum lot area is 3 acres unless the ordinance provides otherwise, and lots created after enactment need at least 185 feet of width6. A dwelling needs at least 1,100 square feet of finished living area with a basement or 1,250 square feet without one7. RA structures may not exceed 2½ stories or 25 feet, with farm and essential-service structures excepted10.

RA setbacks include at least 25 feet to a side property line where no right-of-way is adjacent and at least 50 feet to the rear lot line11.

Mobile homes and travel trailers may not be used as dwellings in Atlas Township except in a mobile home park or under the ordinance's Section 3.260 requirements5. Camping in the Outdoor Recreation Area district is limited to private parks and to 15 days per stay12. We could not confirm any tiny-home or accessory-dwelling provision, so ask the township Building Department before planning either13.

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

Yes. Atlas Township's zoning ordinance states that no structure may be erected, moved, added to or structurally altered without a permit issued by the Building Inspector1. A permit issues only if the work conforms to the ordinance, unless the township grants written conditional-use approval, an appeal is reversed or a variance is granted1.

Applications must include two sets of plans drawn to scale14. The Township Board sets the fee schedule, which is posted at Township Hall15. The township also requires a certificate of zoning compliance from the Building Inspector before new or changed structures are used16.

The Atlas Township Building Department lists the building permit applications under its forms page, and electrical, mechanical and plumbing permits are pulled through the State of Michigan13. Michigan law requires a building permit before construction, issued by the appropriate enforcing agency17. Owning and living in the home yourself exempts you from residential-builder licensing, not from the permit18. We could not confirm which edition of the state construction code the township has adopted or how it handles inspections; ask the Building Department13.

How do septic permits work in Atlas Township?

Septic permits for Atlas Township come from the Genesee County Health Department, which inspects proposed on-site disposal areas and issues permits for all new installations and repairs4. On vacant land the process has two steps: a perc test, then the septic permit19. A new residential septic permit costs $22019.

Atlas Township adds its own step. Before any building permit issues, the applicant must obtain the township Board's written approval of the plan for any on-site sewage disposal system3. The most restrictive of state law, county regulations and township ordinance controls20.

The Health Department must inspect the tank and drainfield before backfilling, and a certificate of inspection is required before anyone occupies the new structure21.

Soils make this step matter: only about 2.2% of soils in Genesee County rate as not limited for a conventional drain field, so expect a site evaluation and possibly an engineered system22. Call the Septic Office at (810) 257-360323.

Building a home in Atlas Township: the steps, in order

  1. Confirm the parcel's zoning district on the township Zoning Map and check lot size, setbacks and minimum home size for that district2.
  2. Order a perc test from the Genesee County Health Department19.
  3. Take the septic plan to the township Board for written approval, which the ordinance requires before a building permit3.
  4. Apply to the township Building Inspector with two sets of scale plans14.
  5. Pull the septic permit from the Health Department before any licensed installer starts work24.
  6. Have the Health Department inspect the tank and drainfield before backfilling21.
  7. Request the township's certificate of zoning compliance before moving in16.

If the driveway meets a state trunkline highway, a state driveway permit is required in addition to the local building permit25. We could not confirm the township's own driveway standard, so ask the Building Department13.

What stays with Genesee County, and what to check before you buy in Atlas Township

Septic permits and inspections stay with the Genesee County Health Department, and so do well permits: the county requires a $200 permit for a private residential well, and an application must be filed three working days before construction26. We could not confirm any township well rule, so ask the Building Department13. For land outside the township, see the Genesee County page.

Before buying, check the following:

  • Flood risk. Atlas Township bars structures in a natural watercourse floodplain that would reduce its capacity to store runoff27.
  • Taxes. Genesee County's effective property tax rate is about 1.4%9.
  • Land division. Atlas Township lists a Subdivision Control Ordinance and a Land Division ordinance on its website; confirm the rules before splitting a parcel28.
  • Short-term rentals and agricultural exemptions. We could not confirm the township's rules, so ask the township office.

Watch-outs

  • The township Board must approve a septic plan in writing before a building permit issues, so schedule the perc test and the Board's review early3.
  • Living in an RV or mobile home on your own lot in Atlas Township is limited to mobile home parks or the ordinance's Section 3.260 requirements5.
  • Rules such as lot size, home size and setbacks differ by zoning district, so confirm the district before you rely on RA figures6.
  • We could not confirm the township's building-code edition, inspection practice, tiny-home, accessory-dwelling or short-term-rental rules; call the township Building Department13.

Sources

  1. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  2. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  3. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  4. Septic: GCHD Environmental Health Program, quoted and re-checked
  5. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  6. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  7. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  8. michigan.gov (Michigan statewide rule), quoted and re-checked
  9. Effective property tax rate: Bolthole Index county data
  10. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  11. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  12. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  13. Atlas Township Building Department (atlastownship.org)
  14. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  15. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  16. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  17. Building Permit Information, quoted and re-checked
  18. Frequently Asked Questions – Residential Builder, quoted and re-checked
  19. Septic: GCHD Environmental Health Program, quoted and re-checked
  20. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  21. Septic: GCHD Environmental Health Program, quoted and re-checked
  22. 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
  23. Genesee County Health Department, Environmental Health Division (Septic Office) (geneseecountymi.gov)
  24. Septic: GCHD Environmental Health Program, quoted and re-checked
  25. Infrastructure permits (Michigan statewide rule), quoted and re-checked
  26. Wells: Planning, Permits, Bacteria Testing, quoted and re-checked
  27. Atlas Township Zoning Ordinance, amended through Ordinance No. 25-05 (Atlas Township), quoted and re-checked
  28. General Ordinances - Atlas Township (Atlas Township), quoted and re-checked

Written October 23, 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 Atlas Township

Atlas Township’s own rules

  • Building permitRequired

    Structures erected, moved, added to, or structurally altered inside Atlas Township.

    • A permit may issue only in conformity with the ordinance unless there is written conditional-use approval, an appeal reversal, or a zoning variance.
    “No structure shall be erected, moved, added to, or structurally altered without a permit therefore, issued by the Building Inspector.”
  • Certificate of occupancyRequired

    New, changed, converted, altered, enlarged, or nonconforming structures and premises inside Atlas Township.

    • The ordinance calls the required approval a certificate of zoning compliance.
    • A temporary certificate may be issued for partial occupancy during alterations for no more than six months, with safety conditions and safeguards.
    “until a certificate of zoning compliance shall have been issued therefore by the Building Inspector”
  • Zoning districtsPublished (with conditions)

    The unincorporated area of Atlas Township.

    • District boundaries are shown on the incorporated Zoning Map.
    “For the purpose of this Ordinance all of the unincorporated area of the Township is divided into the following use zoning districts:”
  • Living in an RVLimited

    Mobile homes or travel trailers used as dwellings inside Atlas Township.

    • Use is allowed only in a mobile-home park meeting ordinance and Mobile Home Commission Act standards, or outside such a park under Section 3.260 requirements.
    “Mobile homes or travel trailers shall not be used as dwellings, except when located in, and as a part of, a mobile home park development”
  • Manufactured homesLimited

    Mobile/manufactured homes used as dwellings inside Atlas Township.

    • Use is allowed only in a mobile-home park meeting ordinance and Mobile Home Commission Act standards, or outside such a park under Section 3.260 requirements.
    “Mobile homes or travel trailers shall not be used as dwellings, except when located in, and as a part of, a mobile home park development”
  • Who permits septicMixed (with conditions)

    On-site sewage disposal systems associated with buildings inside Atlas Township.

    • The Township Board's written approval is required before the building permit; the controlling standard is state law, county regulations, or Township ordinance, whichever is most restrictive.
    “the approval in writing from the Township Board of his plan for any on-site sewage disposal system”
  • Septic permitRequired

    A building permit application involving an on-site sewage disposal system inside Atlas Township.

    • Written Township Board approval is required before the building permit.
    • The most restrictive of state law, county regulations, and Township ordinance applies.
    “Before any building permit shall be issued under the terms of this Ordinance, the applicant shall obtain the approval in writing”
  • Mandatory utility hookupConditional

    Camping sites for tents, campers, and travel trailers in a private park/recreational facility in the ORA district inside Atlas Township.

    • A public-water connection is required if public water is available within 500 feet of any portion of the land.
    • A sewer connection is required if public sewer is available within 500 feet of the park.

    public water availability distance: <= 500 feet (Any portion of the land) · public sewer availability distance: <= 500 feet (Any portion of the park)

    “If public sewer shall be available within 500 feet of any such park, the park sewer system shall be connected thereto.”
  • Subdividing landRegulated (with conditions)

    Subdivision activity inside Atlas Township.

    • Specific subdivision-control standards were not extracted from the linked ordinance document.
    “Subdivision Control Ordinance Roads Plat Fee Ordinance Standard for Construction of Driveways not Maintained at Public Expense Land Division”
  • Building in a floodplainLimited

    Structures proposed in a natural-watercourse floodplain inside Atlas Township.

    • A structure may not diminish floodplain runoff-storage capacity or impede runoff flow.
    “No structure shall be constructed within a floodplain of any natural water course, such as to diminish the capacity of the floodplain to store runoff”
  • Permit feesVariable (with conditions)

    Conditional-use, variance, appeal, building-permit, certificate-of-zoning-compliance, and amendment applications inside Atlas Township.

    • The Township Board establishes the schedule and collection procedure.
    • The schedule must be posted at Township Hall and may be changed by Board resolution.
    “The Township Board shall establish a schedule of fees, charges, and expenses, and establish a procedure for their collection.”
  • Permit processPublished (with conditions)

    Building-permit applications inside Atlas Township.

    • Applications must include two sets of scale plans and the specified lot, structure, use, and occupancy information.
    • The Building Inspector may require further lawful information needed for conformance and enforcement.

    plan sets: 2 sets (Building-permit application)

    “All applications for building permits shall be accompanied by two sets of plans drawn to scale”

Rules another office applies inside Atlas Township

Atlas Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Minimum dwelling sizeSpecified

    Dwelling units in the Residential Agricultural (RA) district inside Atlas Township.

    • For units of more than one story, at least 800 square feet must be on the ground floor.
    • The standard differentiates units with and without basements.

    minimum finished living area with basement: >= 1100 square feet (800 square feet on ground floor for units of more than one story) · minimum finished living area without basement: >= 1250 square feet (800 square feet on ground floor for units of more than one story)

    “Dwelling units without a basement shall have a minimum finished floor area of 1,250 square feet”
  • Minimum lot sizeSpecified

    Lots in the Residential Agricultural (RA) district inside Atlas Township.

    • Lots created after ordinance enactment may not have depth more than four times their width.
    • The standard is subject to other ordinance provisions or requirements.

    minimum lot area: >= 3 acres (Except as otherwise provided or required) · minimum lot width: >= 185 feet (Lots created after enactment)

    “Minimum lot area shall be three acres except as otherwise provided or required”
  • SetbacksSpecified

    Residential structures in the Residential Agricultural (RA) district inside Atlas Township.

    • The front-yard standard is subject to the stated block-face average and corner-lot exceptions.
    • The side and rear standards are subject to other ordinance provisions.

    section-line road setback: 90 feet (Measured under Section 6.60) · quarter-section-line road setback: 70 feet (Measured under Section 6.60) · local-thoroughfare setback: 55 feet (Measured under Section 6.60) · side property-line setback: >= 25 feet (Where no right-of-way is adjacent to the side yard) · rear lot-line setback: >= 50 feet (Except as otherwise provided)

    “No structure or appurtenance thereto shall be closer than 50 feet from any rear lot line”
  • Building heightSpecified

    Structures in the Residential Agricultural (RA) district inside Atlas Township.

    • Farm and essential-service structures are excepted.

    maximum height: <= 25 feet (Farm and essential service structures) · maximum stories: <= 2½ stories (Farm and essential service structures)

    “No structure or part thereof shall be erected to a height exceeding two and one-half (2½) stories or 25 feet”
  • Camping on your landLimited

    Camping sites for tents, campers, and travel trailers in the Outdoor Recreation Area (ORA) district inside Atlas Township.

    • The site must be a private park and recreational facility.
    • Occupancy is limited to 15 days.

    maximum camping duration: <= 15 days (Tent, camper, or travel trailer parking at the ORA private park/recreational facility)

    “camping sites for tents, campers, and travel trailers, limited to not more than 15 days duration”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Atlas Township or Genesee County directly.

  • Owner-builder exemption — Owner-built residential construction inside Atlas Township.
  • Building code adopted — Construction inside Atlas Township.
  • Inspections — Construction inside Atlas Township.
  • Lot coverage — Lots inside Atlas Township.
  • Tiny homes — Tiny-home occupancy inside Atlas Township.
6 more unanswered
  • Accessory dwellings
  • Septic inspection
  • Well permit
  • Agricultural exemption
  • Driveway access
  • 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 Atlas Township publishes no rule on the point, not that none exists. Genesee County’s page lists the county offices to call.

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