Guideline No. 40 – Radon Units – Fast Track Available

An Exterior Alteration Application is required for all radon mitigation systems/units where exhaust pipes etc. must be located in the front of the home or above the roof line.

Application Requirements

Application must include:

  • A site (plot) plan including the exact location of the radon unit.

Note: Applications without a diagramed plot/plat plan will not be accepted.

  • A manufacturer’s drawing and/or photograph if available.


Your application will most likely be approved if the following criteria are met:

  1. A completed application is submitted.
  2. A screening plan is provided. See GUIDELINE No.47- SCREENING.

Approval not required

An Exterior Alteration Application for exterior radon units will not be needed if the following criteria are met:

  1. The exhaust pipe is located alongside a downspout and painted the color of the downspout.
  2. The unit is placed vertically on the side of the house and painted to match the siding.
  3. The unit is located along the rear or side of the house and is of a size that does not require screening.