What percentage of each side property line may a firewall be constructed on R-5 zoned properties with two side firewalls?

In R-5 zoned properties, which typically allow for multi-family residential buildings, the construction of firewalls is subject to specific regulations intended to ensure safety and proper fire separation between properties. The correct answer reflects the standard maximum percentage of each side property line that firewalls may occupy when two side firewalls are in place.

The allowance of up to 75% on each side property line helps to maximize the usable space while ensuring that building regulations for fire safety are still met. This percentage is particularly important in denser urban areas where properties are closer together and the risk of fire spreading is a significant concern. By allowing firewalls to extend into a significant portion of the side property lines, the regulations facilitate better architectural designs that comply with safety standards without compromising on the total living space that can be constructed.

Understanding this percentage is crucial for developers and builders as they navigate zoning laws and building codes to achieve a balance between compliance and optimal building design.