Owners at the Aston Martin Residences in downtown Miami say their ultra-luxury tower is already showing some very un-luxurious problems, and they have taken the fight to court. The condo association’s lawsuit claims the waterfront high-rise has crumbling balcony edges, leaking pool features and exposed steel that owners say posed immediate safety risks. The construction-defect case lands on top of earlier accusations that the developer improperly steered association contracts and failed to deliver big-ticket amenities that were part of the sales pitch.
The new suit was filed April 15 in Miami-Dade County Circuit Court by the 300 Biscayne Boulevard Way Condominium Association. It names Riverwalk East Developments LLC, led by Germin Coto, along with 16 contractors, architects and engineers, and alleges negligence and building-code violations. As reported by Bisnow, the association is seeking at least $750,000 and wants the court to force repairs. The filing pins the alleged defects on improper design and construction of multiple systems and components throughout the property.
After owners took control of the condo board in March 2025, the association hired Epic Forensics & Engineering to conduct a property condition assessment. According to the lawsuit, that report documented cracks in concrete, exposed post-tension tendons, waterproofing failures, seawall cracks and corrosion, elevator defects and leaks in fire-protection systems. The complaint singles out contractor Coastal Construction for allegedly failing to properly design, install or adequately inspect pool and spa systems, which the association says led to active or past leaks, corrosion of reinforcing steel and a repair tab projected in the millions. “Spalling concrete shouldn’t occur in any high-rise,” association attorney David Haber told Bisnow, adding that the association has already paid to remove loose concrete pieces flagged as an immediate life-safety hazard.
Owners Say Promised Amenities Never Materialized
The construction-defect allegations stack onto a separate lawsuit filed earlier this year that paints an unflattering picture of how the building has been run. That earlier complaint accuses the developer of a pattern of self-dealing and no-bid contracts, and says promised amenities like a helipad and beach-club access never showed up. According to the Miami Herald, the suit alleges the developer and affiliated companies steered pricey service contracts to businesses tied to Coto. Residents say the combination of financial issues and alleged structural problems has left owners paying for fixes and fighting to protect their property values.
The Building, the Developer and the Stakes
The sail-shaped Aston Martin Residences at 300 Biscayne Boulevard Way is a 66-story waterfront tower that opened in 2024, widely described as a 391-unit ultra-luxury project developed by G&G Business Developments and Riverwalk East. Coverage in The Real Deal and other outlets has chronicled flashy sales and penthouse deals at the building, and notes that the developer and his attorney declined to comment when the association’s earlier lawsuit became public. For owners, what happens in these cases will determine whether condo assessments climb, whether the developer or insurers end up covering repairs, or whether years of litigation undercut resale prices.
Legal Pathway and What Comes Next
In Florida, construction-defect disputes typically start with expert inspections and a pre-suit notice under Florida Statutes Chapter 558, which gives contractors a chance to inspect and propose repairs before a full-blown lawsuit moves forward. Developers and condo associations also have to follow turnover and record-keeping rules in the state’s Condominium Act, found in Chapter 718 of the Florida Statutes, which can affect remedies for any alleged self-dealing. Expect a slow, document-heavy fight: the association is set to lean on forensic engineering reports and contract records, while the contractors and designers are likely to defend their work and argue they followed the plans and applicable codes.
