Zoning, building permits and septic rules in Milton, Wisconsin

Milton’s own rules

• Local zoningPresent

  Land inside Milton city limits

  • Zoning ordinance is Chapter 78 of the city code; Ord. No. 561 adopted April 15, 2025.

  “the zoning ordinance was adopted april 15, 2025. use the links below to view the updated map and ordinances.”

• Zoning districtsPublished

  Zoning districts inside Milton city

  • Districts include SR-7, SR-10 and MH-7 among others; interactive zoning map adopted April 15, 2025.

  “residential zoning districts sr-7 single family residential-7 sr-10 single family residential-10 mh-7 mobile home residential-7 tf-8 two family residential-8”

• Minimum lot sizeSpecified

  SR-10 Single Family Residential-10 district inside Milton city

  • District-specific.

  minimum lot area: >= 3000 square feet · minimum lot width: >= 30 feet

  “minimum lot area 3,000 square feet maximum impervious surface ratio 75 percent minimum green space 25 percent maximum building coverage none minimum lot width 30 feet”

  One more reviewed finding on this topic

  • Specified — SR-7 Single Family Residential-7 district inside Milton city

    “minimum lot area 6,000 square feet maximum impervious surface ratio 75 percent minimum green space 25 percent maximum building coverage none minimum lot width 50 feet”

• SetbacksSpecified

  SR-10 Single Family Residential-10 district inside Milton city

  • District-specific.

  front setback: 15 min, 20 max feet · street side setback (corner lots): >= 10 feet · side setback: >= 5 feet · rear setback: 2 min, 4 max feet

  “minimum front setback minimum 15 feet, maximum 20 feet minimum attached garage offset from principal building maximum 10 feet in front of the front plane of the principal structure's facade minimum porch setback (on front and side yard) 6 feet minimum street side setback (on corner lots) 10 feet minimum side setback 5 feet minimum rear setback minimum 2 feet, maximum 4 feet”

  One more reviewed finding on this topic

  • Specified — SR-7 Single Family Residential-7 district inside Milton city

    “minimum front setback 20 feet minimum attached garage offset from principal building maximum 10 feet in front of the front plane of the principal structure's facade minimum porch setback (on front and side yard) 12 feet minimum street side setback (on corner lots) 15 feet minimum side setback 8 feet minimum rear setback 20 feet”

• Lot coverageSpecified

  SR-7 Single Family Residential-7 district inside Milton city

  • No maximum building coverage; impervious surface and green space limits apply.

  maximum impervious surface ratio: <= 75 percent · minimum green space: >= 25 percent

  “minimum lot area 6,000 square feet maximum impervious surface ratio 75 percent minimum green space 25 percent maximum building coverage none minimum lot width 50 feet”

• Building heightSpecified

  SR-7 Single Family Residential-7 district inside Milton city

  • Principal building height; accessory structures have a separate limit.

  maximum principal building height: <= 35 feet

  “maximum principal building height 35 feet minimum principal building separation per the building code”

• Living in an RVLimited

  Recreational trailers used as a residence inside Milton city

  • A recreational trailer may not be used as a residence unless defined as an accessory dwelling unit; RV park/campground rules not reviewed.

  “in no instance shall an accessory structure, unfinished cellar, unfinished basement, tent, or recreational trailer be used as a residence unless defined as an accessory dwelling unit.”

• Accessory dwellingsLimited

  Accessory dwelling units inside Milton city

  • The ordinance recognizes accessory dwelling units as a defined use; district-by-district permission not reviewed.

  “in no instance shall an accessory structure, unfinished cellar, unfinished basement, tent, or recreational trailer be used as a residence unless defined as an accessory dwelling unit.”

• Short-term rentalsLimited

  Short-term residential rentals in all zoning districts inside Milton city

  • Annual city short-term rental license required; violation is a zoning violation.
  • Application requires insurance proof, state tourist rental house license, seller's permit, city room tax permit and an administrative fee.
  • Rental period at least seven consecutive days and under 30 consecutive days.

  minimum rental period: >= 7 days · maximum rental period: < 30 days

  “the minimum rental period shall be a minimum of seven consecutive days by any one party and the maximum rental period shall be less than 30 consecutive days.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Milton or Rock County directly.

• Building permit — Building permits inside Milton city
• Owner-builder exemption — Owner-builder exemption inside Milton city
• Building code adopted — Building code inside Milton city
• Inspections — Building inspections inside Milton city
• Certificate of occupancy — Occupancy certificates inside Milton city

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.