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Residential condominium or cooperative building
Three or more habitable stories
30 years from the date the certificate of occupancy was issued, then every 10 years after that
Coastal buildings: The age trigger is 25 years (instead of 30) if the building is within 3 miles of the coastline.
Required for every building subject to the milestone inspection law. After the inspection, clients receive a report that:
Only required if Phase 1 identifies signs of substantial structural deterioration that call for further investigation and more testing.
During the inspection, our team aims to be courteous, efficient, and as non-disruptive as possible.
1 to 2 engineers may enter the unit to access the balcony
The balcony inspection usually takes about 5 to 10 minutes
Our team may take photos and sound the concrete to check for possible issues
We work carefully to avoid damage to finishes such as tile and paint
For easier access, please clear the balcony of personal items and keep blinds or similar coverings open before the inspection.
Your engineer should be professional, communicative, and ethical — with the ability to guide you through the inspection, clearly explain structural concerns, and provide your Phase 1 report without tying it to repair work.
At Biller Reinhart Engineering Group, we have the knowledge and experience to guide you through the full Milestone Inspection process: from Phase 1 evaluation to Phase 2 testing and repair support.
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This resource is published for informational purposes and does not constitute engineering advice. Consult a licensed Structural Engineer for project-specific guidance.
