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    © 2026 Developed by Panda IDX
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    Alton Bay heroAlton Bay heroAlton Bay heroAlton Bay hero
    Alton Bay logo

    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.

    Alton Bay view
    Alton Bay view

    Key Building Details

    Price Range

    $1.7M – $2.6M

    Avg Assoc Fee

    Contact Agent for Info.

    Sq Ft Area

    940–2,182 ft²

    Units

    78

    Stories

    8

    Deposit Schedule

    1

    10% Reservation (now)

    2

    10% Contrat (Q3 2018)

    3

    10% Ground Breaking (Q4 2018)

    4

    10% (Q2 2019)

    5

    10% (Q3 2019)

    6

    50% Closing (Q2 2020)

    Gallery

    Alton Bay

    Legal Disclaimer

    All promotional content displayed on this page, including renderings, floor plans, brochures, videos, and similar materials, are sourced from the developer to facilitate the marketing of the relevant project. PANDA IDX, LLC does not assert ownership or creation of these materials.

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    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
    Alton Bay highlights
    Alton Bay highlights