90 Alton Rd

Miami Beach, FL 33139

$2,500,000

$1,678/ft²

2Beds

2Baths

1,490Sq ft

1999Year built

CondoType

About this home

Exceptional penthouse residence at the highly sought-after Yacht Club at Portofino in Miami Beach's prestigious South of Fifth neighborhood. This spacious 2-bedroom, 2-bath corner unit offers breathtaking panoramic views of the Atlantic Ocean, Biscayne Bay, the Downtown Miami skyline, Fisher Island, Key Biscayne, Government Cut, and the Port of Miami. Filled with natural light, the residence features an open layout and a huge private balcony, perfect for entertaining, outdoor dining, and enjoying spectacular sunsets and ocean breezes. Perched on the penthouse level, this unique residence offers privacy, tranquility, and some of the most coveted views in South Beach. Yacht Club at Portofino offers resort-style amenities including a waterfront pool, fitness center, marina access, and on-site café and market. Ideally located just moments from South Pointe Park, pristine beaches, world-class dining, luxury shopping, and Miami Beach's renowned nightlife. A rare opportunity to own a penthouse in one of South of Fifth's most desirable waterfront communities.

Features

Waterfront

Property details

Listing

MLS #: A12033825
Status: For sale
Listed on: Jun 10, 2026
Days on market: 60 days
Listing data updated: Jun 16, 2026

Interior

Beds: 2
Baths: 2
Living area: 1,490 ft²
Price per ft²: $1,678/ft²
Unit: PH3209

Building & community

Type: Condo
Year built: 1999
HOA fee: $2,097/mo
County: Miami-Dade

Lot & exterior

Waterfront: Yes

Days on market, price per ft² and the monthly HOA amount are calculated by this site from the MLS data shown; the association fee is normalized to a monthly figure.

True monthly cost

Mortgage (principal & interest): $12,641
Property taxes (est.): $2,292
Home insurance (est.): $600
Flood insurance (est.): —
HOA fee: $2,097

Estimated total$17,630*/mo

* Some cost lines aren't available yet for this listing; the total shown is incomplete.

Based on 20% down, a 6.5% rate and a 30-year loan, plus this home's estimated Florida carrying costs. All figures are illustrative estimates — not quotes, not financial or insurance advice.

Sources: flood zone — FEMA National Flood Hazard Layer; mortgage, taxes and insurance figures — this site's own estimates; HOA / CDD — as reported for this listing.

What will this home really cost you?

Building structural health (SIRS)

No filing record found

We couldn't find a SIRS filing record for this building in Florida's public DBPR database. That is not a red flag by itself: buildings under three stories are exempt, recent or mailed-in filings may not appear yet, and the name or address on file may differ from this listing.

Questions about this

What is a SIRS and why does it matter?

Since the Surfside collapse, Florida requires condo and co-op buildings three stories or taller to complete a Structural Integrity Reserve Study: an inspection-based plan that forces the association to fund structural repairs (roof, load-bearing walls, plumbing, electrical) instead of deferring them. It matters because underfunded buildings are the ones that surprise owners with large special assessments.

Has this building filed its SIRS?

We didn't find a filing record for this building in the DBPR's public database. Absence of a record does not mean the building is out of compliance — it may be exempt (under three stories), the filing may be recent or on paper, or the recorded name/address may differ. It IS the right question to ask before offering.

What is a special assessment?

A one-off charge the association levies on every owner when reserves don't cover a needed repair — in older coastal buildings they have ranged from a few thousand to over $100,000 per unit. The SIRS exists precisely to make these predictable and funded in advance. Always review the building's budget, reserves and meeting minutes before buying.

What should I check before buying in this building?

Florida law gives buyers the right to review the association's SIRS, milestone inspection reports, budget and reserves — the full study is available from the association by written request. Nilyan requests and walks through these documents with her buyers as part of the offer process.

Source: Florida DBPR public SIRS reporting database. Filing status is self-reported by the association; this is not an audit, inspection or safety certification, and absence of a record does not mean non-compliance. Data as of July 30, 2026.

Want the full structural picture of this building before you offer?