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Apartment research profile

Grand Bay Apartments: Rent, Trade-offs & Resident Feedback

Key Biscayne · Key Biscayne, FL · Our summary of recurring themes in public resident feedback, plus property details and advertised rent. Updated Jul 2026.

Quick take on Grand Bay

Grand Bay is a landmark ultra-luxury condo tower on Key Biscayne's bay side, renting out units well into five figures per month. It anchors the top of the island's rental market and is realistically only relevant to renters relocating with a substantial budget.

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Address
425-455 Grand Bay Dr, Key Biscayne, FL 33149
Floor plans
Studio-4 BR
Advertised rents
$8,600-$18,000+ (as of 2026-07, per public listings)
Map

What residents like

  • Among the most exclusive addresses on the island, with bay views and finishes that match the ultra-luxury price point
  • Controlled access and concierge service appeal to renters prioritizing privacy and security
  • Extremely low turnover and strong resale/rental demand reflect a consistently desirable building reputation

Common complaints

  • Rent is out of reach for the vast majority of relocating renters; this is a tower for high-net-worth tenants, not typical apartment seekers
  • Individually-owned units mean furnishing, finish quality, and lease flexibility vary tenant to tenant
Firsthand resident experiences

Resident reviews of Grand Bay

Written by people who say they live or lived here. Reviews are moderated for relevance and safety; payment and property partnerships never affect what gets published. Read our review standards.

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Amenities

Waterfront/bay viewsConciergeControlled accessOn-site parking
Research transparency

We cross-check property information and summarize recurring public resident feedback. A missing detail means we could not verify it reliably—not that the fee, rule or feature does not exist.

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Questions to ask when you tour Grand Bay

Use these questions to verify current conditions and investigate the trade-offs surfaced by public resident feedback.

  • What is the exact monthly total after every mandatory fee, utility package and service charge?
  • Can I see the specific available unit—not only the model—and receive the quoted price in writing?
  • How does guest parking work, and what rules can lead to towing?
  • Who handles after-hours maintenance emergencies, and what response time is promised in the lease?
  • How often has the access gate or controlled-entry system been unavailable during the past year?
How this apartment research is made How we build these pages: we examine publicly available resident feedback from sources such as Google, ApartmentRatings, Yelp and Reddit, then summarize recurring themes in our own words. We don't copy review text or display third-party star ratings. Paid partner modules are labeled and do not alter the editorial summary. Trade-offs reflect what residents report — experiences vary. Rent ranges come from public listings and change often; always confirm current pricing, fees and policies with the property directly.

Own or manage this community? Verify factual details or view partner options. Sponsorship never changes our resident-feedback summaries.