What is a Seismic Joint?

Q: What is a Seismic Joint?

A: Pursuant to Local Law 17/1995, a Building Separation (seismic joint) is required for all new construction adjoining existing construction. One inch (1") of separation is required for every fifty feet (50') of building height. This separation does not create a non-compliant side yard.

When proposed work consists of enlargement of an existing structure, compliance is required when new foundations are constructed, or when existing foundations are reinforced for the new enlargement, or when the cost of alterations exceeds 60% of the building value.