A building permit and inspection are required for all new buildings, additions and alterations to existing buildings. A building permit is also required for outside improvements, including but not limited to swimming pools, hot tubs, porches, garages, decks, and fences. You do not need a building permit for construction of a residential storage building that is less than 80 square feet in size; however, applicable zoning setbacks still apply. A permit is required for replacement or addition of a heating or cooling unit, upgrading of an electrical service or installing new/upgrading existing wiring, and any kind of plumbing work except minor repairs or fixtures repacement. You do not need a permit to replace existing electrical switches or outlets or plumbing fixtures in the same location.
For further information and applications:
Who may obtain permits
- Homeowners may obtain electrical permits for a single-family residence, which he/she occupies, only after passing the City of Janesville homeowners electrical exam (otherwise permit must be pulled by a Master Electrician licensed through the City of Janesville).
- Homeowners may obtain a plumbing permit for a single-family residence, which he/she occupies.
- Homeowners may obtain a heating permit for any heating or air conditioning replacements or additional heating and cooling equipment.
- If the homeowner has a licensed contractor install the electrical, plumbing or heating, then the licensed contractor shall obtain the required permit.
Inspectors are available in the office daily from 7:00 am to 9:00 am or by appointment. For more information, contact the Community Development Department at 608-755-3060.
Any contractors you hire to do one and two-family construction, heating, electrical, or plumbing work are required to be licensed by the State of Wisconsin and in addition any electrical contractor needs to be licensed through the City of Janesville.
Helpful Links of Interest to Builders: