Key Takeaway: Florida's milestone inspection law requires all condo buildings 3+ stories to undergo structural inspections at 25 years (coastal) or 30 years (inland). Understanding the Phase I and Phase II process, and preparing with drone-based inspection data, can save your community millions and keep you compliant.
What Is a Milestone Inspection?
A Milestone Inspection is a state-mandated structural inspection required for all condominium and cooperative buildings in Florida that:
- Are three stories or taller, and
- Are 30 years old, or 25 years old if located within 3 miles of a coastline
This inspection law was enacted in response to the Surfside tragedy in 2021. It is designed to catch and correct structural deterioration before it becomes catastrophic.
Phase I vs. Phase II: What Is the Difference?
Phase I: Visual Structural Assessment
Performed by a licensed engineer or architect, this initial step is a non-invasive inspection of the building's:
- Load-bearing walls
- Columns and slabs
- Roof system
- Balconies and structural connections
If no substantial structural deterioration is found, the process ends here. Your building passes.
If issues are detected, you move to Phase II.
Phase II: In-Depth Investigation
This deeper evaluation may include:
- Thermal + visual drone imaging
- Core sampling
- Destructive or semi-destructive testing
- Detailed engineering analysis
This helps determine how severe the damage is and what repairs are needed.
Deadlines: Is Your Building Due?
| Building Type | Trigger Age | Deadline |
|---|---|---|
| 3+ Story Building (Coastline, less than 3 miles) | 25 Years | Dec 31 of the trigger year |
| 3+ Story Building (Inland) | 30 Years | Dec 31 of the trigger year |
| All Subsequent Inspections | Every 10 Years | Rolling basis |
If your building was built before 1999 and is near the coast — or before 1994 inland — your time is now. Delays can result in fines, loss of insurance, or even mandatory evacuations.
Why Milestone Inspections Matter to You
This is not just about legal compliance. It is about avoiding the worst-case scenarios:
- Uninsurable buildings
- Multi-million-dollar emergency repairs
- Litigation from unit owners or residents
- Forced building evacuations or red-tagging
- Devaluation of your units on the market
Getting ahead of the law helps you budget intelligently, control your narrative, and maintain safety — without panic.
Common Milestone Inspection Findings
During milestone inspections, engineers frequently discover these conditions — many of which are invisible from ground level without drone facade inspection:
- Concrete spalling — Surface concrete delaminating due to rebar corrosion, especially on balconies, parking decks, and exterior columns exposed to salt air
- Water intrusion — Moisture migrating through failed sealants, cracked stucco, or deteriorated waterproofing membranes
- Efflorescence — White salt deposits indicating ongoing moisture flow through concrete
- Rebar corrosion — Rust staining and expansion cracking from corroding reinforcement steel
- Balcony deterioration — Waterproofing failure, railing connection corrosion, and slab edge spalling
- Roof membrane aging — Blistering, cracking, and ponding water from clogged drains
Phase I vs Phase II: What It Costs
| Item | Small Building (3-5 stories) | Mid-Size (6-12 stories) | High-Rise (13+ stories) |
|---|---|---|---|
| Phase I (visual assessment) | $5,000 - $8,000 | $8,000 - $15,000 | $15,000 - $25,000 |
| Phase II (if triggered) | $15,000 - $25,000 | $25,000 - $40,000 | $40,000 - $75,000+ |
| Drone visual assessment | $3,000 - $6,000 | $5,000 - $10,000 | $8,000 - $15,000 |
| Scaffolding (traditional) | $15,000 - $25,000 | $25,000 - $50,000 | $40,000 - $80,000+ |
Using drone inspection for the visual assessment component can save significantly compared to traditional scaffolding methods while providing more complete coverage. See our comprehensive cost guide for detailed pricing.
Traditional Inspections vs. Smarter Alternatives
Many condo boards are surprised by how disruptive, slow, and expensive traditional inspection methods can be:
- Swing stages or scaffolding — $20,000-$50,000+ just for access
- Limited spot-checks instead of full coverage (10-15% of the facade)
- Timelines measured in weeks, not days
- Significant disruption to residents (noise, restricted access, safety concerns)
AERIALLY.AI offers a better path — 90-100% facade coverage in 1-2 days with zero scaffolding, zero tenant disruption, and AI-powered analysis that catches defects human eyes miss.
How AERIALLY.AI Supports Milestone Compliance
We partner directly with licensed engineering firms to deliver:
- Full Thermal + Visual Drone Scans of the entire facade and roof
- AI-Powered Defect Detection to spot issues like cracks, spalling, water intrusion, or heat loss
- Digital reports + 3D models to provide full transparency for engineers and boards
- PE-stamped reports ready for submission to your municipality
The result: you get faster turnaround, more complete data, and no disruption to residents — all while keeping your community compliant and protected.
And because the engineers we work with use our scan data directly in their sealed reports, you cut out unnecessary steps and save money long-term.
When Should You Start?
If your building is anywhere near the 25- or 30-year mark — or if you are already facing restoration projects or insurance questions — it is time to act.
We recommend:
- Starting with a full-facade and roof scan
- Having an engineer review the findings
- Addressing minor issues before they escalate
This is also critical if you are preparing for a facade restoration project, as it ensures accurate bidding, reduces change orders, and protects the board from liability.
Schedule a free consultation to review your building's timeline and risk profile, and learn how drone data and AI analysis can simplify the entire process.
Need a Building Inspection?
Get a free consultation and custom quote — 1-hour average response time. PE-certified reports. significantly less than scaffolding.
Frequently Asked Questions
What is a milestone inspection in Florida?
A milestone inspection is a state-mandated structural inspection required for all condominium and cooperative buildings in Florida that are three stories or taller and are 30 years old (or 25 years old if located within 3 miles of a coastline). It was enacted after the Surfside collapse in 2021.
What is the difference between Phase I and Phase II milestone inspections?
Phase I is a visual structural assessment performed by a licensed engineer or architect, examining load-bearing walls, columns, slabs, roof systems, and balconies. If substantial structural deterioration is found, Phase II is triggered — an in-depth investigation that may include thermal and visual drone imaging, core sampling, destructive testing, and detailed engineering analysis.
When is my condo building due for a milestone inspection?
Buildings within 3 miles of the coastline are due at 25 years of age. Inland buildings are due at 30 years. After the initial inspection, subsequent inspections are required every 10 years. If your building was built before 1999 near the coast or before 1994 inland, your deadline may be approaching now.
What happens if a condo building fails its milestone inspection?
Delays or failure to comply can result in fines, loss of insurance, mandatory evacuations, litigation from unit owners, and devaluation of units. Getting ahead of the inspection helps you budget intelligently, control the narrative, and maintain safety.