100 Hidden Bay is a 39-story, 371-unit waterfront condominium on Dumfoundling Bay in Aventura, built in 2001 and professionally managed by FirstService Residential. Owners can rent out apartments, subject to association approval. Residents value the water views, security and grounds. Complaints concern association deposit refunds and unhelpful staff interactions.
Residents appreciate sweeping water views, well-kept grounds and a secure waterfront setting.
Renters have reported difficulty getting the association deposit returned after move-out.
Reviews describe unhelpful front-desk and association-management interactions alongside positive feedback about other staff.
Central air, in-unit washer/dryer and a dishwasher in every apartment, a marina and yacht club, two pools with a hot tub and cold plunge, a fitness center with daily classes, and 24/7 valet with concierge service.
* Fees apply to marked amenities. See Costs in the Availability tab.
Also here: One-acre waterfront park · Dog park · Tennis, pickleball and basketball courts · Fiberoptic internet · EV charging stations
100 Hidden Bay is located at 3370 NE 190th St, Aventura, FL 33180. 100 Hidden Bay sits on Dumfoundling Bay in Aventura, between Miami and Fort Lauderdale, with water views over the bay and Intracoastal Waterway.
Driving times without traffic.
Driving times without traffic.

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A nearby Aventura condominium community to compare waterfront amenities and owner-set rental terms.
Apartments are individually owned, with owner-set lease terms and association approval required before move-in. An association deposit may apply in addition to the landlord’s deposit.
Budget about $150/month on top of rent. Individually owned condominium apartments. Electricity is the main direct renter cost; a resident review describes the association requiring a full month's rent as a deposit from renters.
| Cost | Monthly amount |
|---|---|
Electricity Electricity Electricity is billed directly by Florida Power & Light. We estimate $90/month for a one-bedroom apartment. Source: FPL rates and typical bill | ~$90 |
Internet Internet Fiberoptic internet is available at the building; a renter's own plan is paid separately. We estimate $60/month for a basic plan. Source: AT&T Fiber / Xfinity Miami entry-level pricing, used as a planning allowance, not a quote | ~$60 |
Estimated monthly total Excludes any association approval or application fee, which is set by the association
~$150| Cost | One-time amount |
|---|---|
| Security deposit Security deposit A resident review describes the condo association requiring a full month's rent as a deposit from renters. Source: Google review, 2025-09-22 | Reported at 1 month's rent |
