Bolthole Index

Cook County, Illinois

Zoning, building permits and septic rules in Park Ridge, Illinois

Park Ridge, Illinois has its own zoning ordinance and requires a city building permit for new construction, additions and most structural, electrical, plumbing and mechanical work12. The city's Community Preservation and Development department handles both3. Septic and well approvals in Cook County run through the Cook County Department of Public Health, not the city45.

At a glance

Building permit
Required inside Park Ridge for new buildings, additions and most structural or system work; issued by the city2
Zoning
Park Ridge's own zoning ordinance, with residential, commercial and other districts16
Who to call
City of Park Ridge Community Preservation and Development3
Building code
City has adopted international and national codes with local amendments7
Septic
Cook County Department of Public Health reviews private sewage systems county-wide, apart from four named towns; Park Ridge is not one of them4
Driveways and fences
Driveways, fences, sheds, garages and decks also need a city building permit28
Contact
City of Park Ridge Community Preservation and Development, 847-318-52913

Who to call

Building permits

City of Park Ridge Community Preservation and Development

Building permits and inspections, zoning and planning inside Park Ridge city limits

847-318-5291

505 Butler Place

Septic permits

Cook County Department of Public Health - Environmental Health

Review and approval of private sewage disposal systems and well/septic evaluations in Cook County

708-836-8600

7556 Jackson Boulevard, Forest Park, IL 60130

Contact details are copied from each office’s official page and were checked against it on October 17, 2026.

Off-grid gear

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

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

Does Park Ridge, Illinois have zoning?

Yes. Park Ridge administers its own zoning ordinance, and the city publishes the districts and their rules in that document1. Residential districts include single-family R-1 and R-2, two-family R-3 and multi-family R-4, alongside commercial districts6. Each district has its own required yards and bulk rules, so setbacks depend on the district your lot sits in9. The city also provides a zoning calculations workbook for floor area ratio, lot coverage and open space10. Look up a specific address through the city's Community Portal1. We could not confirm numeric minimum lot sizes, building heights, minimum home sizes, or the city's rules on RVs, tiny homes and accessory dwellings, so ask the city's Planning and Zoning division before you rely on any of them3.

Do you need a building permit in Park Ridge, and who issues it?

Yes. Park Ridge requires a city building permit for the construction of any building and for alterations or additions to any building or structure2. Fences, sheds, garages, decks, pools and driveways need one too, as does siding over 100 square feet and removing a tree 10 inches in diameter or larger2. Repairs that do not install or relocate an electrical, plumbing or mechanical system, and decorating, do not need a permit2. The city has adopted international and national codes, and its municipal code prevails over the international building code where they conflict7. Fees are set in a published city schedule11.

Who do you call about Park Ridge building permits and zoning?

Call the City of Park Ridge's Community Preservation and Development department, which coordinates zoning, land use, and building and construction activities3. Its divisions are Administrative, Building, Environmental Health, and Planning and Zoning3. The department works from City Hall at 505 Butler Place and takes calls at 847-318-52913. To apply, complete the building permit application and submit the required materials12. Do not go to the Cook County Department of Building and Zoning for a Park Ridge address: that department oversees unincorporated Cook County, and properties in municipalities contact the local building and zoning authority13.

How do septic permits work in Park Ridge?

We could not confirm a Park Ridge rule on septic systems inside the city, so ask before assuming one applies. Countywide, the Cook County Department of Public Health reviews and approves private sewage disposal systems, except in incorporated Barrington Hills, Inverness, Palos Park and South Barrington, and Park Ridge is not among those four4. Illinois requires plan approval for a new private sewage disposal system14. If a lot is on septic or a well, contact the health department at 708-836-8600 before design work5. Buying or selling a home with a well or septic system typically calls for an evaluation15.

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

We could not confirm Park Ridge's rules on RV occupancy, tiny homes, manufactured homes or accessory dwellings, because the city's zoning text was not available to us in readable form1. Ask the Planning and Zoning division at Community Preservation and Development before buying or parking anything for living space3. Cook County's ban on living in a parked RV applies to unincorporated Cook County, not to land inside Park Ridge16.

Building a home in Park Ridge: the steps, in order

  1. Confirm the lot's zoning district through the city's Community Portal and read the yard and bulk rules for that district19.
  2. Ask Community Preservation and Development about minimum lot size, height and coverage for the district, since we could not confirm them3.
  3. If the property uses a well or septic system, get Cook County Department of Public Health approval5.
  4. Complete the city building permit application and submit the required materials12.
  5. Pay the fees from the city's published schedule11.
  6. Build to the city's adopted codes, and confirm inspection steps with the city, because we could not confirm them73.

What stays with Cook County, and what to check before you buy

Inside Park Ridge the city decides zoning and building permits, while the county's own building and zoning rules cover only unincorporated land13. For land outside city limits, see the Cook County page. Illinois does not issue building permits for privately funded construction; any required permit comes from local government17. Check floodplain status and any short-term rental limits with the city, since we could not confirm either. Cook County's effective property tax rate is about 2%18.

Watch-outs

  • Park Ridge's municipal code was not readable to us, so confirm certificate of occupancy, inspection stages, utility connection, and floodplain rules with Community Preservation and Development3.
  • Searching for 'Cook County building permit' leads to the unincorporated-area office; for a Park Ridge address the city issues building permits13.
  • Building-permit fees are in a separate city fee schedule that we did not open11.

Sources

  1. Zoning Information - City of Park Ridge, IL (Park Ridge), quoted and re-checked
  2. Frequently Asked Questions - City of Park Ridge, IL (Park Ridge), quoted and re-checked
  3. City of Park Ridge Community Preservation and Development (parkridge.us)
  4. Septic, quoted and re-checked
  5. Cook County Department of Public Health - Environmental Health (cookcountypublichealth.org)
  6. Zoning Information - City of Park Ridge, IL (Park Ridge), quoted and re-checked
  7. Frequently Asked Questions - City of Park Ridge, IL (Park Ridge), quoted and re-checked
  8. Frequently Asked Questions - City of Park Ridge, IL (Park Ridge), quoted and re-checked
  9. Zoning Information - City of Park Ridge, IL (Park Ridge), quoted and re-checked
  10. Zoning Information - City of Park Ridge, IL (Park Ridge), quoted and re-checked
  11. Frequently Asked Questions - City of Park Ridge, IL (Park Ridge), quoted and re-checked
  12. Frequently Asked Questions - City of Park Ridge, IL (Park Ridge), quoted and re-checked
  13. Building and Zoning, quoted and re-checked
  14. 77 Ill. Adm. Code 905.190 Installation Approval (Illinois statewide rule), quoted and re-checked
  15. Septic - Cook County Department of Public Health, quoted and re-checked
  16. 25-0036 Full Text PDF, quoted and re-checked
  17. Illinois Codes FAQ (Illinois statewide rule), quoted and re-checked
  18. Effective property tax rate: Bolthole Index county data

Written October 17, 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 Park Ridge

Park Ridge’s own rules

  • Building permitRequired

    Construction, alteration or addition to buildings and structures inside Park Ridge city

    • Not required for repairs that do not install or relocate any electrical, plumbing, or mechanical system, or for decorating.
    • Also required for fences, sheds, garages, decks, pools, driveways, siding over 100 sq ft, and removing a tree 10 inch DBH or greater.
    “a building permit is required for the construction of any building, or alterations or additions to any building or structure”
  • Building code adoptedAdopted

    Construction and alteration of buildings inside Park Ridge city

    • Local amendments in Municipal Code Article 15.
    • FAQ says 2021 ICC codes were in final stage of adoption, anticipated by end of Q1 2024; it also lists Illinois State Plumbing Code and Illinois Accessibility Code (IBC chapter 11 deleted).
    • Municipal code prevails over the IBC in a conflict.
    “the city of park ridge has adopted by reference international and national codes for the purpose of establishing rules and regulations for the design, and construction or alteration of buildings and structures.”
  • Local zoningPresent

    Land inside Park Ridge city limits

    • Zoning map is updated annually; look up an address via the city Community Portal.
    “the districts and their rules are found in a document known as the zoning ordinance.”
  • Zoning districtsPublished

    Zoning districts inside Park Ridge city

    • Commercial districts: office (O), retail and office (B-1), general commercial (B-2), general commercial, wholesale, and service (B-3), and uptown (B-4).
    • Permitted residential uses are in section 7.2 of the zoning ordinance; commercial uses in section 8.3.
    “residential: single-family (r-1) and (r-2), two-family (r-3), and mutli-family (r-4)”
  • SetbacksDistrict specific (with conditions)

    Required yards by zoning district inside Park Ridge city

    • Numeric yards not retrieved; see zoning ordinance section 7.3 (residential) and 8.4 (commercial).
    • Section 11.5 lists accessory uses that may encroach into required yards.
    “each district has required yards and bulk rules. residential rules are found in section 7.3 and commercial in section 8.4”
  • Lot coverageDistrict specific (with conditions)

    Lot coverage by zoning district inside Park Ridge city

    • Numeric limits not retrieved; city provides a zoning calculations workbook for floor area ratio, lot coverage and open space.
    “the zoning calculations workbook can help accurately calculate floor area ratio (far), lot coverage (lc) as well as open space (os).”
  • Driveway accessRequired

    Driveway construction or resurfacing inside Park Ridge city

    • Listed among work requiring a building permit.
    “construction or resurfacing of driveways and off street parking facilities”
  • Permit feesPublished

    Building permit fees inside Park Ridge city

    • Fee amounts are in a linked schedule not opened here.
    “building permit fees. what are the city's permit fees? click here for a schedule of fees”
  • Permit processPublished

    Building permit application inside Park Ridge city

    • Requirements and permit guides are linked from the FAQ.
    “complete the building permit application and submit the required materials.”

Still unanswered

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

  • Owner-builder exemption — Owner-builder exemption inside Park Ridge city
  • Inspections — Inspections of construction inside Park Ridge city
  • Certificate of occupancy — Certificate of occupancy inside Park Ridge city
  • Minimum dwelling size — Minimum dwelling size, R-1/R-2 districts
  • Minimum lot size — Minimum lot size, R-1/R-2 districts
16 more unanswered
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • 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 Park Ridge publishes no rule on the point, not that none exists. Cook County’s page lists the county offices to call.

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