Bolthole Index

Oakland County, Michigan

Building permits, zoning and land rules in Oak Park, Michigan

Oak Park, Michigan requires building permits for construction and changes in use or occupancy; the city Building Division issues residential and commercial building permits.12 Oak Park administers its own zoning, while Oakland County Health Division handles onsite sewage permits and inspections.34 All of Oak Park is served by public water and sewer facilities, so start a home proposal with the city’s utility and zoning requirements.5

At a glance

Building permits
Required for construction and changes in use or occupancy; apply through the city Building Division.12
Zoning
Oak Park administers city zoning and development review.3
Water and sanitation
Public water and sewer serve all of Oak Park; Oakland County Health Division administers onsite sewage systems.54
RV living
Stored or parked RVs cannot be used for living except under the ordinance’s temporary-use exception.6
Minimum home size
A single-story dwelling in R-1 or R-2 requires at least 900 square feet.78
Owner-builder
Michigan offers an own-property, own-use and occupancy licensing exemption; building permits still apply.9
Occupancy approval
A certificate of occupancy is required before a new or altered building is used or occupied.10

Who to call

Building permits

Oak Park Building Division

City building permits, construction drawing review and building inspections.

(248) 691-7450

14300 Oak Park Blvd. Oak Park, Michigan 48237

Zoning

Oak Park Economic Development and Planning Department

City zoning, development review and conceptual site review meetings.

(248) 691-7455

14300 Oak Park Blvd., Oak Park, MI 48237

Septic permits

Oakland County Health Division, Environmental Health Services

County onsite sewage permit applications and inspections; contact for private sanitation proposals.

248-858-1312

[email protected]

1200 N Telegraph Bldg. 34 East Pontiac, MI 48341

Online permits →

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

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

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Do you need a building permit in Oak Park, MI?

Oak Park requires a building permit before constructing a building or structure and when changing a structure’s use or occupancy.1 Ordinary repairs are exempt, but structural changes, work affecting required exits, and work affecting public health or general safety do not qualify as ordinary repairs.1

Michigan construction codes govern Oak Park buildings, with residential-code provisions for one- and two-family dwellings.11 An owner building on the owner’s property for the owner’s own use and occupancy may qualify for Michigan’s residential-builder licensing exemption; that exemption does not remove building-permit, inspection, zoning or utility requirements.9

Who issues building permits and handles zoning in Oak Park?

Oak Park’s Building Division reviews construction drawings, issues residential and commercial building permits, and performs related inspections; call (248) 691-7450 or visit Municipal Services at 14300 Oak Park Blvd.2 For zoning and development review, contact Oak Park’s Economic Development and Planning Department; conceptual site review meetings can be arranged at (248) 691-7455.12

New construction, major renovations, changes in use, and site or building modifications may require city planning review.12 Building approval therefore should not be treated as the entire development process: ask the city planning team which review applies to your proposal before preparing the full application.12

Does Oak Park have zoning, minimum home sizes and setbacks?

Oak Park administers zoning inside city limits, including development review for the projects identified in its zoning ordinance.3 Most non-residential and multi-family development, planned developments, site condominiums and special land uses require site plan review.3

For single-story dwellings, both R-1 and R-2 require at least 900 square feet.78 For two-story dwellings, R-1 requires at least 625 square feet on the first floor and 1,250 total; R-2 requires at least 575 on the first floor and 1,150 total.78 Ask Oak Park Planning to identify the parcel’s district and confirm its lot size, setbacks, height and coverage limits before selecting a house plan.12

How do septic permits and water service work inside Oak Park?

All of Oak Park is served by public water, sanitary sewer and storm sewer facilities.5 Service availability alone does not establish whether a particular alternative sanitation proposal is allowed; discuss connection requirements with the city before buying land for an off-grid home.5

Oakland County Health Division administers onsite sewage permits and construction and final inspections throughout Oakland County.4 New onsite systems require a new-system permit application, while eligible replacement, alteration or repair projects use a repair application.13 Required inspections are listed on the septic permit; when no special inspection is listed, a final inspection before covering is required.14 Ask Environmental Health Services about any onsite proposal inside Oak Park rather than assuming sewer availability authorizes septic installation.15

Can you live in an RV or tiny home in Oak Park?

Oak Park prohibits using stored, parked or placed recreational vehicles and recreational equipment for living purposes except under the ordinance’s temporary-use exception.6 Parking recreational vehicles in the public right-of-way is prohibited for any purpose or length of time.6 Ask Oak Park Planning to explain the temporary-use exception before relying on an RV as housing during construction.612

A small house still faces Oak Park’s residential floor-area standards: single-story dwellings in R-1 and R-2 require at least 900 square feet.78 We could not confirm a separate tiny-home or accessory-dwelling approval route; ask Oak Park Planning to evaluate the proposed use and district before ordering a unit.12

Building a home in Oak Park: what are the steps?

  1. Start with Oak Park Planning: describe the parcel, proposed use and house plan, and ask which zoning or development review applies; a conceptual site review meeting is available.12
  2. Establish the water and sewer arrangements with the city; Oak Park reports public water and sewer facilities throughout the city.5
  3. Submit the required planning application, plans, supporting documents and fees for the review your project needs.12
  4. Apply to the Oak Park Building Division for the building permit before construction, and arrange the applicable construction inspections.12
  5. Obtain a certificate of occupancy before using or occupying the new or altered building; return the completed application to Municipal Services.10

What stays with Oakland County, and what should Oak Park buyers check?

Oakland County Health Division remains the onsite sewage authority; Oak Park’s own zoning and building offices handle the city development questions.432 For land outside Oak Park, use the Oakland County guide to distinguish county services from local planning and zoning, which Oakland County says municipalities control.16

A rental plan needs extra attention: Oak Park approved a six-month moratorium on new rental licenses for properties rented for 30 days or less on Aug. 17, 2026.17 The pause is temporary, so ask the city about the current licensing position before budgeting rental income.17 Michigan also requires state floodplain approval for qualifying work along rivers, streams or drains with drainage areas of at least 2 square miles; ask about floodplain jurisdiction before grading or placing fill.18

Watch-outs

  • Oak Park’s zoning applies inside city limits; Oakland County’s lack of county zoning does not remove the city’s zoning requirements.319
  • RV storage permission is not permission to live in the RV; Oak Park limits living use to the ordinance’s temporary-use exception.6
  • Oak Park’s six-month pause on new rental licenses for stays of 30 days or less was approved Aug. 17, 2026; confirm the current status before committing to a rental project.17
  • We could not confirm private-well or alternative off-grid sanitation approval inside Oak Park; ask city Planning and Oakland County Environmental Health Services before designing around either.1215

Sources

  1. Building Permit Information (Oak Park), quoted and re-checked
  2. Oak Park Building Division (oakparkmi.gov)
  3. Planning, Zoning and Development Review (Oak Park), quoted and re-checked
  4. Onsite Sewage Disposal System (Septic), quoted and re-checked
  5. Water Quality Report (Oak Park), quoted and re-checked
  6. Sec. 323. Recreational equipment and vehicle parking and storing (Oak Park), quoted and re-checked
  7. Sec. 212. Provisions applicable to residential districts (Oak Park), quoted and re-checked
  8. Sec. 212. Provisions applicable to residential districts (Oak Park), quoted and re-checked
  9. Frequently Asked Questions – Residential Builder (Michigan statewide rule), quoted and re-checked
  10. Licenses and Permits (Oak Park), quoted and re-checked
  11. Building Permit Information (Oak Park), quoted and re-checked
  12. Oak Park Economic Development and Planning Department (oakparkmi.gov)
  13. Onsite Sewage Disposal System (Septic), quoted and re-checked
  14. Onsite Sewage Disposal System (Septic), quoted and re-checked
  15. Oakland County Health Division, Environmental Health Services (oaklandcountymi.gov)
  16. Local Community Planning & Zoning, quoted and re-checked
  17. Share Your Feedback on Short-Term Rentals in Oak Park (Oak Park), quoted and re-checked
  18. FAQ: Floods and Floodplain Management, quoted and re-checked
  19. Local Community Planning & Zoning (2026 county census)

Written October 11, 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 Oak Park

Oak Park’s own rules

  • Certificate of occupancyRequired

    Any new or altered building used or occupied inside Oak Park city.

    • The completed Certificate of Occupancy Application must be returned to the Municipal Services Department.
    “Required before any new or altered building is used or occupied.”
  • Local zoningPresent

    Land inside Oak Park city limits; the city administers zoning and development review.

    • Site plan review is required for most non-residential and multi-family development, planned developments, site condominiums, special land uses, and other projects identified in the Zoning Ordinance.
    “Site Plan Review is required for certain developments to ensure compliance with zoning standards and to evaluate potential impacts on surrounding properties, traffic circulation, natural resources, and the character of future development.”
  • Minimum dwelling sizeSpecified

    One-family and two-family dwellings in the R-1 district.

    • The table distinguishes one-story, one-and-one-half-story, and two-story dwellings and lists first-floor and total minimum floor areas.

    1-story minimum floor area: >= 900 square feet · 1½-story minimum first-floor floor area: >= 720 square feet · 1½-story minimum total floor area: >= 1080 square feet · 2-story minimum first-floor floor area: >= 625 square feet · 2-story minimum total floor area: >= 1250 square feet

    “R-1 | 900 | 900 | 720 | 1,080 | 625 | 1,250”
    One more reviewed finding on this topic
  • Camping on your landLimited

    Temporary camping or use of recreational vehicles for living purposes inside Oak Park city.

    • Stored, parked, or placed recreational vehicles and recreational equipment may not be occupied or used for living purposes except as provided in Sec. 323(g).
    • Public-right-of-way parking is prohibited for any purpose or length of time.
    “At no time, except in conformance with subsection g below, shall any stored, parked, or placed recreational vehicles and/or recreational equipment be occupied or used for living purposes.”
  • Mandatory utility hookupWater and sewer (with conditions)

    Properties inside Oak Park city limits.

    • The city states that all Oak Park is served by public water, sanitary sewer, and storm sewer facilities.
    • The cited materials establish service availability but do not state a distance threshold or separately quote a universal mandatory-connection rule.
    “All of Oak Park is served by public water, sanitary sewer and storm sewer facilities.”
  • Short-term rentalsLimited

    Rental properties rented for 30 days or less inside Oak Park city limits.

    • Oak Park regulates short-term and long-term rentals under the same licensing framework.
    • A six-month moratorium was approved on Aug. 17, 2026, on issuing new rental licenses for properties rented for 30 days or less.
    • The moratorium is temporary and does not itself establish a permanent prohibition.

    moratorium duration: 6 months · short-term rental threshold: 30 days or less · moratorium approval date: Aug. 17, 2026

    “On Aug. 17, the Oak Park City Council approved a six-month moratorium on issuing new rental licenses for properties rented for 30 days or less. The temporary pause will allow the city time to evaluate whether additional regulations specific to short-term rentals are needed to support public safety, neighborhood stability and quality of life.”

Rules another office applies inside Oak Park

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

  • Building permitRequired

    Construction of buildings or structures and changes in use or occupancy inside Oak Park city.

    • A permit is not required for ordinary repairs.
    • Ordinary repairs do not include structural changes, changes affecting required means of egress, or work affecting public health or general safety.
    “Before construction of a building or structure, an owner, or the owner's builder, architect, engineer, or agent, shall submit an application in writing to the appropriate enforcing agency for a building permit. A permit is also required when the use or occupancy of a structure or portion thereof is changed.”
  • Building code adoptedAdopted (with conditions)

    Construction, alteration, occupancy, and maintenance of buildings inside Oak Park city, through the Michigan Building Code and Michigan Residential Code.

    • The Michigan Residential Code contains provisions for one- and two-family dwellings.
    “The Michigan Building Code controls all matters concerning the construction, alteration, addition, repair, removal, demolition, use, location, occupancy, and maintenance of all buildings and structures and their service equipment. Presently, provisions for one- and two-family dwellings are included in the Michigan Residential Code.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Oak Park or Oakland County directly.

  • Minimum lot size — Residential lots inside Oak Park city limits.
  • Setbacks — Residential lots inside Oak Park city limits.
  • Lot coverage — Residential lots inside Oak Park city limits.
  • Building height — Residential buildings inside Oak Park city limits.
  • Tiny homes — Tiny-home occupancy inside Oak Park city limits.
9 more unanswered
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Agricultural exemption
  • Subdividing land
  • Building in a floodplain

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 Oak Park publishes no rule on the point, not that none exists. Oakland County’s page lists the county offices to call.

← All of Oakland County: county rules, score and offices