What is the maximum height of firewalls on two opposite sides of an R-3 zoned property?

The correct answer is based on the building codes and guidelines governing R-3 zoned properties, which typically pertains to residential buildings. In these codes, firewalls serve as a critical safety feature that helps to prevent the spread of fire between adjacent buildings or units.

For R-3 zoning, regulations often dictate that firewalls can provide protection for structures that may be up to two storeys in height. This is designed to maintain safety while allowing for reasonable construction practices in residential areas. As a result, the maximum height of firewalls on opposite sides of an R-3 zoned property is established at two storeys.

The other options suggest heights beyond what is permissible under typical building code regulations for R-3 properties, which could lead to increased fire risks and non-compliance with safety standards. Therefore, the acknowledgment of two storeys as the maximum height reflects both safety considerations and adherence to building laws relevant to residential zoning.