Kent County, Michigan requires a building permit before construction, but the county has no building-code program; apply to the enforcing agency for the parcel's city, village or township12. Kent County also has no unified county zoning ordinance3. Septic and well permits go through the Kent County Health Department4.
At a glance
- Building permit
- Generally required; no county program, so apply to the parcel's local enforcing agency12
- Zoning
- No unified county ordinance; each township, city and village has its own35
- Septic permit
- Required through the Kent County Health Department64
- Well permit
- Required through the Kent County Health Department74
- Owner-builder
- Conditional licensing exemption for a person building on their own property for their own use and occupancy8
- RV / tiny home
- No countywide occupancy answer confirmed; ask the local zoning office5
- Septic soils
- About 2% of soils lack severe limits for a conventional drain field9
- Property tax
- About 1.1% effective rate; median annual bill about $3,0281011
Who to call
Septic permits
Kent County Health Department -- Environmental Health Division
On-site septic and well permits, site evaluations, and well/septic evaluations
700 Fuller Ave NE, Grand Rapids, MI 49503
Roads & driveways
Kent County Road Commission (KCRC)
Permits for work in county road rights-of-way, including driveways
1900 4 Mile Road NW, Walker, MI 49544
Floodplain permits
Kent County Drain Commissioner's Office
County drains and stormwater detention ponds
775 Ball Avenue NE, Grand Rapids, MI 49503
Contact details are copied from each office’s official page and were checked against it on September 29, 2026.
Do you need a building permit in Kent County, Michigan?
Yes. Before construction of a building or structure in Kent County, the owner or project representative must submit a written application to the appropriate enforcing agency; a permit is also required for a change in use or occupancy1. Ordinary repairs are exempt, but the exemption does not cover specified structural, egress, utility, public-health or safety work1. Michigan has adopted a statewide building code, with residential requirements in the Michigan Residential Code12. After permitted work is complete, a new or altered building cannot be occupied until the code official issues a Certificate of Occupancy13.
Who issues building permits in Kent County, Michigan?
Kent County has no county building-code program. The statewide jurisdiction list identifies local programs for Kent County's listed cities, villages and townships, so send the application to the enforcing agency for the parcel rather than to a county building department2. Application methods differ by local agency. For example, a new single-family home or duplex in the City of Grand Rapids requires uploaded plans showing the project's location, size and detail, and plan review does not begin until those plans are submitted14. The Kent County Health Department separately handles required on-site septic and water-supply well permits67. For work in a county road right-of-way, including a residential or commercial driveway, apply to the Kent County Road Commission15.
Does Kent County have zoning?
Kent County has no unified county zoning ordinance. Zoning is administered through separate ordinances adopted by the county's townships, cities and villages3. The zoning districts and their rules vary among those local jurisdictions5. Most local jurisdictions use a maximum building height of 35 feet unless the property is in a high-density, high-rise zone, but the parcel's own ordinance and district control16. We could not confirm one countywide answer for setbacks, minimum lot size, dwelling size, lot coverage, accessory dwellings or short-term rentals. Ask the zoning office for the township, city or village containing the parcel for its current map and ordinance before choosing a house location. Zoning approval does not replace the building permit required by the appropriate enforcing agency1.
How do septic and well permits work in Kent County?
The Kent County Health Department requires a permit before installation of an on-site septic system, and a new-construction application must include a detailed site plan and floorplans6. A county site evaluation determines whether land is suitable for the proposed development and on-site well and septic systems17. Only about 2% of Kent County soils lack severe limitations for a conventional drain field, so make septic feasibility an early contingency rather than assuming a conventional system will fit9. Septic work authorized by a county permit requires final inspection before approval and generally cannot be covered or made inaccessible first18. A separate county permit is required before installing an on-site water-supply well7. Mark underground utilities through MISS Dig before the county site visit17.
Can you live in an RV or tiny home in Kent County?
We could not confirm one countywide rule for living in an RV, temporary camping, or occupying a tiny home on private land. Kent County's townships, cities and villages use their own zoning ordinances, so the answer must come from the local zoning office for the parcel5. Michigan guidance does not let a tiny house used as a resort cabin bypass ordinary approvals merely because it is on wheels; applicable local zoning, building, electrical, plumbing, well and septic approvals still apply19. Residential sewage from plumbing fixtures must go to a public sewer where available or an approved private sewage-disposal system20.
Building a home in Kent County: what are the steps?
- Identify the township, city or village containing the parcel and obtain its zoning district rules, because local zoning varies5.
- Find that jurisdiction's building-code agency and apply there; Kent County has no county building-code program2.
- Ask the Kent County Health Department for a site evaluation, then apply for the required septic and well permits with the required plans67.
- Obtain a Kent County Road Commission permit if a driveway or other work enters a county road right-of-way15.
- If floodplain work or a county drain is involved, confirm state and Drain Commission requirements before grading21.
What should you check before buying land in Kent County?
Make an accepted septic site evaluation a purchase contingency: only about 2% of Kent County soils lack severe limitations for a conventional drain field9. If land will be divided and served by onsite wastewater or individual wells, involve the Kent County Health Department early; local-health-department review applies to divisions under one acre, subdivisions and site condominiums22. Confirm the parcel's local zoning district, permitted uses, setbacks and dimensional standards with the township, city or village, because those ordinances differ5. Check flood maps and proposed grading early; floodplain construction, filling and grading can require EGLE permits, while certain floodway or floodplain alterations also require Kent County Drain Commission review21. Verify whether a driveway enters a county road right-of-way, where a Road Commission permit is required15. The effective property-tax rate is about 1.1%, and the median annual property-tax bill is about $3,0281011.
Watch-outs
- Kent County has no county building-code program and no unified zoning ordinance; identify the parcel's city, village or township before seeking permits or zoning answers23.
- A person building a residence on their own property for their own use and occupancy has a conditional builder-licensing exemption, but permitting and code requirements still apply81.
- Most local jurisdictions use a 35-foot building-height maximum, but high-density and high-rise zones can differ; confirm the parcel's district before designing16.
- Only about 2% of Kent County soils lack severe limitations for a conventional septic drain field, so secure the county site evaluation before finalizing a build plan917.
Sources
- Building Permit Information, quoted and re-checked
- Statewide Jurisdiction List, quoted and re-checked
- 2025 Kent County Fair Housing Analysis and Fair Housing Equity Plan, quoted and re-checked
- Kent County Health Department - Septic & Well Permits (2026 county census)
- 2025 Kent County Fair Housing Analysis and Fair Housing Equity Plan, quoted and re-checked
- Septic & Well, quoted and re-checked
- Septic & Well, quoted and re-checked
- Frequently Asked Questions – Residential Builder (RB), quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Code Books, quoted and re-checked
- Certificate of Occupancy Request (Michigan statewide rule), quoted and re-checked
- Apply for a New Residential Building or Addition Building Permit, quoted and re-checked
- Kent County Road Commission (KCRC) (kentcountyroads.net)
- 2025 Kent County Fair Housing Analysis & Equity Plan, quoted and re-checked
- Kent County Health Department -- Environmental Health Division (kentcountymi.gov)
- Sewage Disposal Regulations for Kent County, MI, quoted and re-checked
- 2022 ARVC - General (Michigan statewide rule), quoted and re-checked
- Michigan Part 7 Plumbing Code Rules (Michigan statewide rule), quoted and re-checked
- Site Development Rules: Procedures and Design Standards for Stormwater Management, quoted and re-checked
- Septic & Well, quoted and re-checked
Written September 29, 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.