Ohio
Florida Condo Milestone Inspection (SB 4-D)
Required structural milestone inspections of Florida condo and co-op buildings three stories or taller by a licensed architect or engineer.
What the work involves
After the 2021 Surfside collapse, Florida's SB 4-D created mandatory milestone inspections for condominium and cooperative buildings three stories or more. The first inspection is due by December 31 of the year the building turns 30, and every 10 years after; a 2023 amendment (SB 154) lets the local building official require it at 25 years based on conditions such as proximity to salt water. Phase 1 is a visual examination by a Florida-licensed architect or engineer; if substantial structural deterioration is found, a Phase 2 inspection with testing and a repair plan is required.
Local conditions we plan for
- Frost depth and freeze thaw damage
- Landslides in southeast Ohio hill country
- Riverine flooding (Ohio River)
- Abandoned underground mines and subsidence
Building code: 2021 IBC and 2018 IRC adopted at the state level (ICC adoption chart, April 2026).
When you need it
- Building is three or more stories and approaching 30 years old (or 25 where the local official requires it)
- Local building official sent a milestone inspection notice
- Visible cracking, spalling or rusting reinforcement
- Association planning special assessments for repairs
Frequently asked questions
How much does florida Condo Milestone Inspection (SB 4-D) cost?
Across the US, florida Condo Milestone Inspection (SB 4-D) usually costs $5,000 to $50,000 per building. Estimate. Phase 1 reports are at the low end; Phase 2 testing and repair design for large towers are higher. Repairs themselves can be far larger.
How long does florida Condo Milestone Inspection (SB 4-D) take?
Plan on Weeks for Phase 1; months for Phase 2 from signed proposal to stamped deliverables, longer if a site visit, soil testing or a permit review cycle is involved.
Do I need a licensed PE for florida Condo Milestone Inspection (SB 4-D)?
In most US jurisdictions, yes. When the work needs a permit, the plans, calculations or report usually must be sealed by a Professional Engineer licensed in the state where the project is located. Every deliverable we issue for permit is sealed that way.
How do I verify an engineer's license in Ohio?
Engineers practicing in Ohio are licensed by the Ohio State Board of Registration for Professional Engineers and Surveyors. You can confirm a license number and its status in the board's public license search before you sign a contract.
Which building code applies in Ohio?
2021 IBC and 2018 IRC adopted at the state level (ICC adoption chart, April 2026). Cities and counties can add local amendments, which is one reason to hire an engineer who works in your area.
What site problems do engineers see most in Ohio?
Common issues include frost depth and freeze thaw damage, landslides in southeast Ohio hill country, riverine flooding (Ohio River) and abandoned underground mines and subsidence.