Alton Bay
Developer
Mast Capital
Architect
Ricardo Bofill, Taller de Arquitectura
Interior Design
Ricardo Bofill, Taller de Arquitectura
About
Alton Bay
3900 Alton Road, Miami Beach, FL
MODERN DESIGN AND TIMELESS ELEGANCE Rising gracefully amid the turquoise waters of Biscayne Bay, Alton Bay brings the modern design of internationally acclaimed master architect Ricardo Bofill to the historic heart of Miami Beach, offering a residential enclave of luxury, convenience, and breathtaking views. Developer Mast Capital has assembled a visionary team of designers, artists, and craftsmen to create a lifestyle of quiet elegance and stunning beauty in an unrivaled location.
Key Building Details
$1.7M – $2.6M
Contact Agent for Info.
940–2,182 ft²
78
8
Deposit Schedule
10% Reservation (now)
10% Contrat (Q3 2018)
10% Ground Breaking (Q4 2018)
10% (Q2 2019)
10% (Q3 2019)
50% Closing (Q2 2020)
Gallery
Alton Bay
Legal Disclaimer
Images are for illustration purposes only and may not reflect the actual finished product.
Highlights
Alton Bay
- RESIDENCE FEATURES
- 10’ high ceilings in all residences
- Floor-to-ceiling energy efficient windows
- Direct elevator access to select units
- Italian-designed kitchens
- Sub-Zero® and Wolf® appliances
- High-end designer bathroom fixtures
- Frameless glass enclosed showers
- Spacious Italian-designed walk-in closets
- Assigned covered self-parking for residents and 24-hour valet for guests
- Integrated high-speed internet throughout common areas
- Unrivaled & highly accessible location at the entry to Miami Beach
- BUILDING AMENITIES
- Elegant porte cochère entry to a professionally curated collection of contemporary art
- Landscaped pool terrace featuring lounge seating and sunset bay view deck
- Expansive pool & spa surrounded by lounging cabanas and poolside daybeds
- VIP access to the Beach Club at the Nobu Hotel and Eden Roc Miami Beach with cabanas, lounges, towel service and beach butlers
- Light-filled fitness center and state-of-the-art fitness equipment
- Sauna, steam and changing area
- Social lounge with gaming area, library and media room that converts to a private high-definition theater
- Chef-grade commercial kitchen with indoor seating
- Private dining room
Available Listings
Alton Bay
| Unit | Price | MLS # | Beds | Baths | Sqft | Date Listed | |
|---|---|---|---|---|---|---|---|
 | Unit 618 | $10,500/mo | A12107363 | 3 | 3 | 1,410 ft² | Oct 15, 2026 |
 | Unit 603 | $7,395/mo$8,995 | A11968632 | 2 | 3 | 1,035 ft² | Feb 20, 2026 |
 | Unit 623 | $4,295/mo$3,500 | A11968708 | 1 | 1 | 671 ft² | Feb 20, 2026 |
 | Unit 606 | $4,885/mo$6,300 | A11968726 | 1 | 2 | 826 ft² | Feb 20, 2026 |
 | Unit 725 | $11,995/mo$11,750 | A11968839 | 3 | 3 | 1,316 ft² | Feb 20, 2026 |