Bolthole Index

Oakland County, Michigan

Building permits, zoning and septic rules in Walled Lake, Michigan

Walled Lake, Michigan requires city building permits for construction, additions, accessory structures and alterations; work must wait for approval.1 Walled Lake has its own zoning and prohibits using RVs, trailers and tents as dwellings.23 In Oakland County, septic permits for qualifying sites inside Walled Lake come from Oakland County Health Division, separately from city building approval.4

At a glance

Building permits
City approval required before construction starts1
Zoning
City zoning applies inside Walled Lake2
Septic permits
Oakland County Health Division handles on-site systems4
RV living
RVs, trailers and tents cannot be used as dwellings3
Minimum dwelling size
R-1A: 1,000 square feet; R-1B: 950 square feet of usable floor area per unit56
Owner-builder
Homeowner affidavit allows personal work in an occupied or soon-to-be-occupied home, with inspections7

Who to call

Building permits

Walled Lake building permit office

City building and trade permit applications, inspection scheduling and zoning application forms

(248)624-4847

1499 E. West Maple Road, Walled Lake, MI 48390

Zoning

Walled Lake Planning and Development

City planning review and development questions

(248) 624-4847

1499 E. West Maple Road, Walled Lake, MI 48390

Septic permits

Oakland County Health Division, Environmental Health Services

On-site sewage disposal system permits and construction and final inspections

248- 858-1312

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 Walled Lake means bringing your own water and power. The kit we’d start with:

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Who handles Walled Lake building permits and zoning questions?

Use the Walled Lake building permit page for building, zoning, electrical, mechanical and plumbing application forms.8 The city lists the building-permit contact as (248)624-4847 and City Hall at 1499 E. West Maple Road, Walled Lake, MI 48390.8 Ask Walled Lake Planning and Development to identify the parcel’s zoning district before designing a home; the city publishes district regulations and a zoning map article.9

City building approval does not replace septic approval: Oakland County Health Division evaluates sites and soils and issues on-site sewage disposal permits inside Walled Lake where public sewer is not used or is unavailable.4

Does Walled Lake have zoning, lot-size rules and setbacks?

Walled Lake has city zoning, with separate district regulations rather than a single citywide residential lot standard.29 In Walled Lake’s R-1A Single Family District, minimum lot area is 12,000 square feet and minimum lot width is 90 feet.10 In R-1B, minimum lot area is 9,600 square feet and minimum width is 80 feet.11

The R-1A schedule lists a 30-foot front setback, 10-foot least side yard, 25-foot combined side yards, 35-foot rear setback and 30-foot waterfront setback, subject to the established residential building pattern and lot-of-record exceptions.12 R-1B lists the same front, rear and waterfront figures, but a 5-foot least side yard and 20-foot combined side yards, also subject to exceptions.13 In both districts, impervious surfaces may cover at most 35% of the parcel, so include proposed paving in the design review.14

How do septic permits work inside Walled Lake?

Oakland County Health Division handles site and soil evaluations, septic permits and inspections for newly installed on-site sewage systems inside Walled Lake where public sewer is not used or is unavailable.415 A new residential septic system requires a new-system permit application; qualifying replacements, alterations and repairs require a repair application.16

Oakland County lists a new residential septic permit for vacant land at $325 and a residential repair permit at $221.17 Applications may be submitted through the county’s Citizen Access Portal or at county offices, with account registration required for first-time online users.18 Follow the inspections specified on the septic permit; absent special inspections, the required final inspection occurs before covering the system.19

Can you live in an RV or tiny home in Walled Lake?

Walled Lake prohibits using automobile trailers, recreational vehicles, boats, similar portable dwellings or tents as dwellings.3 The prohibition means an RV cannot serve as your dwelling while you build a Walled Lake home.3 Permitted RV storage is a separate matter: stored RVs and trailers must be disconnected from utilities and cannot be occupied for dwelling purposes.3

For permanent homes, Walled Lake’s R-1A district requires at least 1,000 square feet of usable floor area per unit, while R-1B requires 950 square feet.56 We could not confirm a complete tiny-home-specific or accessory-dwelling rule; ask Walled Lake Planning and Development how the proposed structure and use would be classified before buying a tiny home.

Building a home in Walled Lake: what are the steps?

  1. Ask Walled Lake Planning and Development to identify the zoning district and review the district’s dimensional requirements.9
  2. Submit complete building plans and supporting information to Walled Lake; additions, garages, sheds, pools, decks and other structures need a mortgage survey or plot plan, plus impervious-surface and lot-coverage calculations.20
  3. If the project needs an on-site sewage system, arrange Oakland County Health Division’s site and soil evaluation and septic permit.4
  4. Obtain city building approval before starting work and obtain the separate electrical, mechanical and plumbing permits.1
  5. Keep approved plans at the job site and arrange inspections; trade inspections must be approved before rough-frame and final building inspections.21

For land outside Walled Lake city limits, use the Oakland County guide for the county’s answers; the city’s zoning applies inside Walled Lake.2

Watch-outs

  • Walled Lake’s RV dwelling prohibition applies even when an RV is parked on your own property.3
  • Walled Lake’s residential setback schedule has established-building-pattern and lot-of-record exceptions; ask Planning and Development to apply the exceptions to the actual parcel.1213
  • We could not confirm Walled Lake’s complete private-well, off-grid sanitation or driveway-access requirements; ask Oakland County Health Division about wells and sanitation, and Walled Lake Planning and Development about driveway approval.2223

Sources

  1. Building Permit Application (Walled Lake), quoted and re-checked
  2. Walled Lake Code of Ordinances, Sec. 51-21.28, Site plan review (Walled Lake), quoted and re-checked
  3. Walled Lake Code of Ordinances, Sec. 51-21.20, Automotive trailer camps or tourist cabins prohibited (Walled Lake), quoted and re-checked
  4. Oakland County Proposed Use of Septic (Walled Lake), quoted and re-checked
  5. Article 17.00 Schedule of Regulations (Walled Lake), quoted and re-checked
  6. Article 17.00 Schedule of Regulations (Walled Lake), quoted and re-checked
  7. City of Walled Lake, Building Permit and Checklist (Walled Lake), quoted and re-checked
  8. Walled Lake building permit office (walledlake.us)
  9. Walled Lake Zoning Ordinances (Walled Lake), quoted and re-checked
  10. walledlake.us (Walled Lake), quoted and re-checked
  11. walledlake.us (Walled Lake), quoted and re-checked
  12. Article 17.00 Schedule of Regulations (Walled Lake), quoted and re-checked
  13. Article 17.00 Schedule of Regulations (Walled Lake), quoted and re-checked
  14. Article 17.00 Schedule of Regulations (Walled Lake), quoted and re-checked
  15. oakgov.com (Walled Lake), quoted and re-checked
  16. Onsite Sewage Disposal System (Septic), quoted and re-checked
  17. Onsite Sewage Disposal System (Septic) — applications and fees, quoted and re-checked
  18. Onsite Sewage Disposal System (Septic) — applications and fees, quoted and re-checked
  19. Onsite Sewage Disposal System (Septic), quoted and re-checked
  20. City of Walled Lake, Building Permit and Checklist (Walled Lake), quoted and re-checked
  21. Building Inspection List (Walled Lake), quoted and re-checked
  22. Oakland County Health Division, Environmental Health Services (oaklandcountymi.gov)
  23. Walled Lake Planning and Development (walledlake.us)

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 Walled Lake

Walled Lake’s own rules

  • Building permitRequired

    Building work submitted to the City of Walled Lake.

    • The application must be reviewed for code compliance; if approved, permit and bond fees must be paid before issuance and starting work.

    review notice period: <= 10 business days (The city may instead notify the applicant that additional information is needed.)

    “No work may be started before the approval of this permit. The penalty for work done prior to the issuance of a permit shall double the permit fee.”
  • Owner-builder exemptionConditional

    A homeowner performing permitted work in the homeowner's own occupied or soon-to-be-occupied home.

    • The homeowner must certify the work will be installed personally in the homeowner's own home.
    • Work must comply with the State Building Code.
    • Work may not be enclosed, covered, or put into operation before inspection and approval.
    • The homeowner must arrange necessary inspections.
    “I hereby certify the work described on this permit application shall be installed by myself in my own home in which I am living or about to occupy.”
  • Building code adoptedAdopted (with conditions)

    Construction regulated by Walled Lake inside city limits.

    • The city page identifies multiple enforced state construction codes; applicants are directed to check Michigan codes for current codes.
    “Enforcing Codes: 2021 Michigan Building Code 2021 Michigan Rehabilitation Code 2021 Michigan Energy Code for Commercial Buildings 2021 Michigan Plumbing Code 2023 National Electric Code (NEC) 2023 Michigan Part 8 Electrical Code 2021 Michigan Mechanical Code 2015 Michigan Residential Code 2015 Michigan Energy Code Residential”
  • InspectionsRequired

    Permitted construction inside Walled Lake city limits.

    • Electrical, plumbing, and mechanical permits must be inspected and approved before rough-frame and final building inspections.
    • Approved plans must be at the job site.
    • Inspection requests require advance notice.
    • A reinspection fee or partial-inspection fee may apply.
    “All disciplines (Electrical, Plumbing and Mechanical) permits must be inspected and approved PRIOR to scheduling the rough frame and final building inspections.”
  • Certificate of occupancyRequired

    Work under Walled Lake building permits.

    • Final-building-inspection approval alone does not authorize occupancy; a certificate of occupancy must issue before moving in.
    “Final Building inspection approval DOES NOT grant permission to occupy space. All building permits require a Certificate of Occupancy to be issued PRIOR to moving in.”
  • Local zoningPresent (with conditions)

    Land and development inside Walled Lake city limits.

    • Site-plan review is generally required in each zoning district, subject to the stated R-1A/R-1B single-family exception and other provisions of Sec. 51-21.28.
    “Planning commission review is required to determine the compliance of the site plan with the zoning ordinance and other applicable regulations, its adherence with sound site planning and design principles, and conformance with the criteria for approval of site plans outlined in subsection (g) of this section.”
  • Zoning districtsPublished

    Zoning districts inside Walled Lake city limits.

    • The official city zoning page publishes the zoning district and map article, residential districts, mobile-home park districts, community-service, commercial, office, industrial, parking, planned-unit-development, overlay, and commercial-planned-development articles.
    “ARTICLE 3.00 ZONING DISTRICTS & MAP [...] ARTICLE 4.00 R1A & R1B SINGLE FAMILY RESIDENTIAL DISTRICTS [...] ARTICLE 12.00 M H - MOBILE HOME PARK DISTRICTS [...] ARTICLE 17.00 SCHEDULE OF REGULATIONS”
  • Minimum dwelling sizeDistrict specific (with conditions)

    R-1A Single Family District.

    • The schedule lists minimum usable floor area per unit of 1,000 square feet.

    minimum usable floor area per unit: >= 1000 square feet

    “R-1A Single Family 12,000 90 2 30 30 30o 10n 25n 35 30 1,000”
    One more reviewed finding on this topic
  • Minimum lot sizeDistrict specific (with conditions)

    R-1A Single Family District.

    minimum lot area: >= 12000 square feet · minimum lot width: >= 90 feet

    “R-1A Single Family 12,000 90 2 30 30 30o 10n 25n 35 30 1,000”
    2 more reviewed findings on this topic
    • District specific (with conditions) — R-1B Single Family District.
      “R-1B Single Family 9,600 80 2 30 30 30o 5n 20n 35 30 950”
    • District specific (with conditions) — R-1A and R-1B single-family site condominium projects inside Walled Lake city limits.
      “Single-family site condominiums shall be subject to all requirements applicable to R-1A or R-1B Districts, including minimum lot requirements and all other applicable requirements set forth in section 51-17.01.”
  • SetbacksDistrict specific (with conditions)

    R-1A Single Family District.

    • Required setbacks are measured from the existing right-of-way line unless the adopted zoning map specifies a different setback measurement standard.
    • Front setback is based on the Established Residential Building Pattern or the schedule minimum, whichever is less.
    • Lots of record between 65 and 74 feet wide may have a 15-foot total side yard with 5 feet minimum; lots less than 65 feet wide may have a 12.5-foot total side yard with 3.5 feet minimum.

    front setback: >= 30 feet (subject to ERBP rule) · least side setback: >= 10 feet (lot-of-record exceptions apply) · total side setbacks: >= 25 feet (lot-of-record exceptions apply) · rear setback: >= 35 feet · waterfront setback: >= 30 feet

    “R-1A Single Family 12,000 90 2 30 30 30o 10n 25n 35 30 1,000”
    2 more reviewed findings on this topic
    • District specific (with conditions) — R-1B Single Family District.
      “R-1B Single Family 9,600 80 2 30 30 30o 5n 20n 35 30 950”
    • District specific (with conditions) — R-1A and R-1B single-family site condominium projects inside Walled Lake city limits.
      “The site condominium unit shall be equivalent to the area of the lot where a principal building can be constructed and there shall be a limited common element associated with each site condominium unit which shall be at least equivalent to the minimum yard area requirements.”
  • Lot coverageSpecified

    Residential additions and renovations subject to Walled Lake plan review.

    • The packet identifies a proposal exceeding maximum coverage as a possible Zoning Board of Appeals approval issue; applicability of the stated maximum to every district was not established.

    maximum lot coverage: <= 30 percent (The city packet identifies an exceedance as a possible Zoning Board of Appeals issue.)

    “Proposed exceeds the maximum 30 percent lot coverage”
    One more reviewed finding on this topic
    • Specified — R-1A and R-1B Single Family Districts.
      “Impervious Surface in Single Family Districts. A maximum of thirty-five percent (35%) of the parcel shall be covered by impervious surfaces in the R-1A and R-1B districts.”
  • Building heightSpecified

    R-1A and R-1B Single Family Districts.

    • The Article 17 schedule lists a maximum of two stories and 30 feet for each district.

    maximum building height: <= 2 stories · maximum building height: <= 30 feet

    “R-1A Single Family 12,000 90 2 30 30 30o 10n 25n 35 30 1,000 R-1B Single Family 9,600 80 2 30 30 30o 5n 20n 35 30 950”
    One more reviewed finding on this topic
  • Living in an RVProhibited

    Use or occupancy of automobile trailers and recreational vehicles as dwellings inside Walled Lake city limits.

    “No automotive trailer camps or tourist cabins shall be established, and automobile trailers, recreational vehicles, boats and similar portable dwellings or tents shall not be permitted to be used or occupied as dwellings.”
  • Camping on your landProhibited

    Use of tents or similar portable dwellings as dwellings inside Walled Lake city limits.

    “No automotive trailer camps or tourist cabins shall be established, and automobile trailers, recreational vehicles, boats and similar portable dwellings or tents shall not be permitted to be used or occupied as dwellings.”
  • Who permits septicCounty (with conditions)

    Onsite sewage disposal systems serving property inside Walled Lake city limits, where an onsite system is proposed.

    • Oakland County's online program applies the permit rule to residential, commercial, and community onsite sewage systems; systems with flows over 10,000 gallons per day are excepted from the quoted commercial permit rule.
    “Effective May 6, 2012 the Oakland County Sanitary Code, Article XI, requires anyone who installs onsite sewage disposal systems in Oakland County to be licensed by the Oakland County Health Division.”
  • Septic permitRequired

    A new or repaired onsite sewage disposal system proposed inside Walled Lake city limits.

    • A new-system permit application is required for construction or installation. A repair-system permit application is required for replacement, alteration, or repair. The commercial rules quoted by Oakland County except flows greater than 10,000 gallons per day.

    commercial-flow exception: > 10000 gallons per day (Oakland County states the new and repair onsite-system application requirements do not apply above this flow.)

    “A Repair Onsite Sewage Disposal System Permit Application is required for any replacement, alteration or repair of an existing onsite sewage disposal system.”
  • Permit processPublished

    Building permit applications inside Walled Lake city limits.

    • Applications require complete plans and supporting information.
    • A mortgage survey or plot plan is required for additions, garages, sheds, pools, decks, or structures.
    • Impervious-surface and lot-coverage calculations are required.
    • Separate electrical, mechanical, and plumbing permits are required.
    • Approved plans must remain at the job site.
    “Mortgage survey or plot plan required for any addition, garage, shed, pool, deck or any structure”

Rules another office applies inside Walled Lake

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

  • Septic inspectionRequired

    Newly installed on-site sewage disposal systems inside Walled Lake city limits.

    • Oakland County Health Division conducts inspections of newly installed systems.
    “Conduct inspections of newly installed on-site sewage disposal systems.”

Still unanswered

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

  • Tiny homes — Tiny-home occupancy inside Walled Lake city limits.
  • Accessory dwellings — Accessory dwelling units inside Walled Lake city limits.
  • Off-grid sanitation — Off-grid sanitation systems inside Walled Lake city limits.
  • Well permit — Private wells inside Walled Lake city limits.
  • Agricultural exemption — Agricultural construction or land use inside Walled Lake city limits.
3 more unanswered
  • Driveway access
  • Building in a floodplain
  • 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 Walled Lake publishes no rule on the point, not that none exists. Oakland County’s page lists the county offices to call.

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