For saleReduced $14,600,000Virtual tour
$39,900,000
7 beds9,039 sq ft
Ocean or gulf · Bay, harbor, inlet or soundShared waterfront site
450 Alton Rd #PH1Miami Beach, FL 33139
Condo · MLS 11394859
Listing courtesy of Compass Florida, LLC · MyStateMLS
For saleReduced $1,000,000 from $39,000,000Virtual tour
$38,000,000
5 beds7,890 sq ft0.36 acres
126 W San Marino DrMiami Beach, FL 33139
Homes, condos and townhomes · MLS 11467242 · Listed 772 days ago (Sep 18, 2024)
Ocean or gulf · Bay, harbor, inlet or sound · Direct parcel frontage · Waterfront details
For sale: Listed and available according to the MyStateMLS feed.
About this property
This Venetian Islands modern mansion has it all: Downtown views, Sunsets, incredible interiors, a lot & a half + 90 feet of water frontage. Three distinct social areas benefit from skyline exposure enhanced by 10' telescopic windows. An integrated wood-paneled kitchen + oversized pantry complete the gourmet experience. The oak flooring on the main level leads upstairs where the picturesque Primary has it all: 2 closets, drench shower, deep soaking tub, book-matched marble, and an enviable view. The tropical pool, spa, cabana + Summer kitchen, ample green space, dockage for multiple boats & jet skis, and rooftop complete the outdoors. Draped in ipe and coral stone, a privacy gate and 2 car garage enhance the first appeal. Plus theatre, office, gas cooking, Jr. Primary, & spacious terraces.
Description provided by the listing brokerage.
MLS-reported waterfront
Waterfront details
The listing represents the offered parcel itself as adjoining the water. This is what the listing reports, not a survey or a title finding.
- Relationship to the water
- Direct parcel frontage
- Water type
- Ocean or gulf, Bay, harbor, inlet or sound
- Water body
- Not provided. Ask the listing agent.
- Frontage length
- Not provided. Ask the listing agent.
- Water access arrangement
- Not provided. Ask the listing agent.
- Docks, slips, lifts, moorings
- Dock reported
- Dock depth
- Not provided. Ask the listing agent.
- Shoreline
- Not provided. Ask the listing agent.
- Seasonal or tidal conditions
- Not provided. Ask the listing agent.
- Boating limits (bridges, depth, open-water access)
- Not provided. Ask the listing agent.
The listing reports a dock. It does not say whether the dock is private, shared or transferable, or what boats it fits.
Why this is listed as waterfront
WaterfrontYN“Yes”: The listing is marked waterfront.WaterfrontFeatures“Ocean Front, Boat Dock, Bay”: Includes a "… Front" value describing frontage.PropertyTypeDetail“house”: Property form used to read the frontage relationship.
Classified from fields in the MyStateMLS listing data. It has not been independently verified, and it is not a survey, title examination or legal determination of shoreline or access rights. Rules version 2026-10-29.1. How we classify waterfront
Something wrong with this classification? Report a waterfront classification issue. Questions about frontage, docks or access are best answered by Compass Florida, LLC.
Facts
- List price
- $38,000,000
- Original list price
- $39,000,000
- Status
- For sale
- Property type
- House
- Bedrooms
- 5
- Full baths
- 5
- Half baths
- 2
- Interior area
- 7,890 sq ft
- Lot size
- 0.36 acres (15,750 sq ft)
- Year built
- 2018
- Garage spaces
- 2
- County
- Miami-Dade County
- MLS number
- 11467242
- Annual property tax (2023)
- $269,395
Facts are reported by the listing brokerage. Items not listed were not provided; that does not mean the property lacks them.
Features
Interior
- Walk-In Closet(s)
Exterior
- Outdoor Shower
Appliances
- Washer
- Range
- Microwave
- Refrigerator
- Dryer
- Dishwasher
Flooring
- Marble
- Hardwood
Heating
- Electric
Parking
- Driveway
Water
- Public (Water Source)
Sewer
- Other
Virtual tours
Location
The pin is the listing's reported coordinates and may be approximate. It is not a parcel boundary or shoreline, and no flood, wetland or hazard conclusion should be drawn from it. See more listings in Miami Beach.
Price and status history
- Original list price reported by the brokerage: $39,000,000
Changes observed by Waterfront Homes in MyStateMLS data since Oct 29, 2026. This is not a public-record sales history; MyStateMLS does not publish sold prices.
Estimate a monthly payment
$7,600,000
Illustrative. Replace with a quote from your lender.
From the listing (tax year 2023). Taxes can change after a sale.
Get a quote; rates vary widely by location.
Manufactured homes on a leased lot.
Applied only while the loan is over 80% of the price. Illustrative.
Estimated monthly payment
$225,682 per month
Principal and interest$192,149
Property tax$22,450
Homeowners insurance$11,083
Loan amount$30,400,000
Total interest over the term$38,773,524
An estimate for comparison only, not a loan offer or approval. Actual rates, taxes, insurance, PMI and fees depend on your lender, credit, location and loan program.
Similar waterfront listings nearby
Waterfront listings of the same property type and water type in Miami Beach, priced within 25% of this listing ($28,500,000 to $47,500,000), newest first. Each one passes the same waterfront rules. See all matches
Questions to ask before you buy
Questions worth investigating for any waterfront property. They are not claims that this property has a problem or meets any condition.
- Who owns the shoreline and the land under the water, and are there easements or public-access rights along it?Ownership can stop at a high-water line, a survey line or a seawall. A title search and survey answer this, not the listing.
- Is a dock, slip, lift or mooring included, and do the rights transfer to you?Docks can be shared, leased, assigned by an association or held under a permit that does not automatically transfer.
- What permits exist for the dock, seawall or other shoreline structures, and what would new work require?Shoreline work is often regulated by local, state and federal agencies.
- How much does the water level change by season, by tide or by reservoir management?Depth at a dock in one season can differ a lot in another.
- What does flood insurance cost for this property, and what does the current flood map show?Get a quote from an insurer or agent. A flood zone is not a premium, and no zone does not mean no risk.
- What maintenance does the shoreline need (seawall, bulkhead, riprap, erosion), and what has been done recently?Shoreline structures are expensive to repair; ask for records and inspection reports.
- How are water, sewer or septic, and power provided?Waterfront septic systems and wells can have extra rules and inspections.
- How do you reach the property by road year-round, and who maintains that road?Some waterfront roads are private, seasonal or shared.
- What local rules apply: rentals, docks, boat lifts, fences, tree removal, setbacks?Rules come from the town, county, state, lake authority or association and vary widely.
Printable due-diligence checklist · Ownership budget planner · FEMA Flood Map Service Center (official flood maps; look up the address yourself)
Guides and next steps
Listing courtesy of Compass Florida, LLC. Listings provided by MyStateMLS.
Listing last updated by the brokerage Nov 13, 2025, 2:10 PM UTC. Waterfront Homes last received MyStateMLS data Oct 30, 2026, 5:01 PM UTC. Information is deemed reliable but not guaranteed; verify all details with the listing agent.