In 2022, the Florida Legislature passed Senate Bill 4-D in response to a deadly residential building collapse in Surfside. The law established mandatory structural milestone inspections for multifamily and condominium buildings statewide — with binding deadlines tied to a building's age and location. If your association has been waiting to figure out what this means for your property, this guide covers the essentials.
Which Buildings Are Covered
SB 4-D applies to residential condominium and cooperative buildings that are three stories or taller. Single-family homes, duplexes, and most commercial buildings are not subject to the milestone inspection requirement under this law, though commercial properties may have separate inspection obligations.
The law applies statewide across Florida, but the deadlines are most urgent for South Florida's aging coastal building stock — Miami-Dade, Broward, and Palm Beach counties have a large concentration of properties that were already at or past the trigger ages when the law took effect.
If your building is a three-story-or-taller condo or co-op that was built before 2022, you almost certainly need to act now. Buildings completed after 2022 have a longer runway before their first deadline, but the clock is already running.
The Two Triggers: 25-Year and 30-Year
The law establishes two age-based thresholds that determine when a building must complete its first milestone inspection. Which trigger applies depends on the building's proximity to the coast.
| Building Location | Age Trigger | Deadline for Pre-2022 Buildings |
|---|---|---|
| Within 3 miles of the coastline (coastal/oceanfront) | 25 years | December 31, 2024 (overdue) |
| More than 3 miles from the coastline (inland) | 30 years | December 31, 2024 (overdue) |
| Built after 2022 — coastal | 25 years from completion | December 31 of the 25th year |
| Built after 2022 — inland | 30 years from completion | December 31 of the 30th year |
For the overwhelming majority of South Florida condo buildings built before 2022, the first milestone deadline was December 31, 2024. If your association has not yet completed a Phase 1 inspection, it is currently out of compliance. Boards that were issued extensions by their local building department may have additional time, but those extensions are finite — and enforcement activity is increasing.
What the Inspection Actually Covers
The milestone inspection is a two-phase process performed by a licensed Florida structural engineer or architect.
Phase 1 is a visual assessment of the building's primary structural components. The engineer walks the property and examines:
- Structural foundation and load-bearing elements
- Building facade — concrete, stucco, cladding, and balcony soffits
- Balconies, railings, and cantilevered elements
- Parking garages and carports attached to or below the residential structure
- Roof structure and mechanical penetrations
- Signs of water intrusion, spalling, corrosion, or delamination
If Phase 1 reveals no substantial structural concerns, the inspection is complete. If the engineer identifies areas that require closer examination, Phase 2 is triggered — a more detailed investigation that may include material sampling, probe openings, and lab testing.
Phase 2 findings result in a formal engineer's report that the association must file with the local building department. If repairs are required, the association must obtain permits and complete the work within a timeframe set by the engineer.
What Happens If You Miss the Deadline
Non-compliance with SB 4-D carries real consequences. Local building departments are authorized to:
- Issue fines — up to $1,000 per day for each day a required inspection report is outstanding
- Restrict occupancy — in cases where structural risk is deemed imminent, authorities can require residents to vacate the building
- Pursue receivership — if a condo association repeatedly fails to act, the state can appoint a receiver to manage the association and force compliance, at the association's expense
Beyond regulatory penalties, non-compliance creates serious insurance exposure. Many property insurers are now reviewing milestone inspection status as part of their underwriting process. Associations that cannot demonstrate compliance may face coverage gaps, policy non-renewals, or substantially higher premiums.
Board members should also be aware that failure to act can expose individual directors to personal liability claims from unit owners who suffer harm as a result of deferred maintenance that a milestone inspection would have flagged.
How Drone Surveys Support the Milestone Inspection Process
A milestone inspection requires a licensed structural engineer — drone surveys don't replace that. What they do is give the engineer (and the board) a thorough, documented baseline before the engineer sets foot on the property.
Here's what a drone facade survey adds to the process:
- 100% facade coverage — every elevation, every floor, every balcony soffit documented in high resolution. Ground-based visual inspection inevitably misses upper-floor details.
- No scaffolding or rope access required — for a preliminary visual assessment, drone imagery eliminates the need to erect temporary access equipment, which can cost $2,000–$5,000 per day in South Florida.
- AI-annotated defect mapping — our pipeline flags and classifies visible defects (spalling, cracking, delamination, efflorescence, exposed rebar) and marks them on a georeferenced building map, so the engineer can prioritize where to look closely.
- Engineer-ready PDF deliverables — timestamped, GPS-tagged image sets and annotated reports that structural engineers can use as supporting documentation in their Phase 1 report.
- No resident disruption — no equipment on balconies, no access required inside individual units, no noise or safety concerns for residents.
For associations that are already past their deadline and moving quickly to get into compliance, drone surveys help the engineering process move faster. For associations that are still in the planning phase, a drone baseline gives the board a clear picture of what the engineer is likely to find before any contracts are signed.