Swimming Pools over 24″ high will need to obtain a permit. More information is available in the “News” section at the bottom of the page. —- The  Sesquicentennial Headquarters / Store (110 West 2nd Street) is now open!   The store hours are:  Mondays 10am-3pm  Thursdays 3pm-7pm  and Saturdays 10am-3pm. 

Contractors’ Corner

If you are a contractor doing business in the City of Rock Falls, check here for important information.

All contractors must be registered with the city in order to perform work in Rock Falls. They must also hold a $15,000 bond and required insurance.

To register, please download our registration form. This form can be completed and and signed digitally and returned to the email addresses at the bottom of the form.



Electricians must have passed the regional test in order to register with the City. If you have a similar license from out of the area the Building Department will likely accept that.


All roofers are required to supply a State of Illinois Roofing License.

The following categories require a State license:

Illinois Roofing Industry Licensing Act

Surveyors Tools

Survey Control Network

All submittals shall tie into the City of Rock Falls official Survey Control Network.

Geospatial Reverence Information:

  • Coordinate System: State Plane (IL West-1202)
  • Horizontal Datum: NAD83 (North American Datum of 1983)
  • Vertical Datum: NAVD88 (North American Vertical Datum of 1988)
  • Unit of Measure: US Survey Foot


Download our PDF with the city’s geospatial reference information.



See public GIS information by visiting the Whiteside County GIS site.