ONYX TOWER LLC
2 office properties in Fort Lauderdale / Broward County recorded to 2 owner entities mailing to 21500 BISCAYNE BLVD STE 301, AVENTURA, FL. likely one owner
At a glance
ONYX TOWER LLC is recorded as the owner of 2 office properties (2 parcels) in Fort Lauderdale / Broward County, totalling 1.1M sq ft of building area with $134M of assessed value. The holdings sit in 2 owner entities that share one tax-bill mailing address in AVENTURA, FL — and a name root, which is how a single sponsor usually holds property.
County assessment roll
Properties
| Building | Submarket | Sq ft | Assessed | Last sold | Tenants |
|---|---|---|---|---|---|
| 1010 S FEDERAL HWY | Golden Beach / county line | 796K | $100M | $52,211,600 · May 2025 | 0 |
| 21500 BISCAYNE BLVD owner on site | Aventura | 354K | $34M | $5,500,000 · Jul 2008 | 170 |
Names on the deeds
Owner entities at this address
- ONYX TOWER LLC
- OPTIMA INTERNATIONAL LLC
How this group was built. These entities share both a mailing address and a name root, which is how a single sponsor usually holds property — one entity per building.The county records an owner and a mailing address for every parcel; this page collects the office parcels whose owners mail to the same address, and counts buildings rather than parcels using the county's own condo-to-building link. 1of these properties also carry a business-tax receipt in the owner's own name, which is the public record's way of showing an owner-occupier rather than a landlord. Lease terms, rents and the identity of a manager acting for the owner are not public records and are not shown.
Where are ONYX TOWER LLC's office buildings?
The 2 properties are spread across 2 cities, led by Hallandale Beach (1), Aventura (1).
The largest is 1010 S FEDERAL HWY in Hallandale Beach at 796K sq ft.
Recorded build years run from 2013 to 2024.
How large is this portfolio within Fort Lauderdale's office market?
Its 1.1M sq ft is 1.53% of the 75M sq ft of office building area on the Fort Lauderdale / Broward County roll.
Its $134M of assessed value is 0.95% of the metro's office total.
It holds 2 of the metro's 6,702 office buildings.
2 of its parcels carry a recorded sale price; the most recent was 1010 S FEDERAL HWY in May 2025 for $52,211,600.
1 parcel also carries a business-tax receipt in the owner's own name — an owner-occupier rather than a landlord.
Frequently asked questions
How many office buildings does ONYX TOWER LLC own in Fort Lauderdale?
2 office properties (2 parcels) on the Fort Lauderdale / Broward County roll, counted by building rather than by condo parcel.
What is ONYX TOWER LLC's largest office building?
1010 S FEDERAL HWY, Hallandale Beach — 796K sq ft, assessed at $100M.
What are ONYX TOWER LLC's office properties worth?
Their combined assessed value on the current Fort Lauderdale / Broward County roll is $134,000,000. Assessed values are taxable-roll figures, not market prices.
Are these properties owned by one company?
These entities share both a mailing address and a name root, which is how a single sponsor usually holds property — one entity per building. 2 owner entities share the mailing address. It is evidence of common ownership, not proof of it.
When did one of ONYX TOWER LLC's Fort Lauderdale office properties last change hands?
The most recent recorded transfer among these parcels is 1010 S FEDERAL HWY, May 2025, for $52,211,600.
Related
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Fort Lauderdale / Broward County — Florida DOR NAL assessment roll for Broward County: owner names, mailing addresses, values, and recorded sales with price at month precision. The county's local business tax roll is not yet ingested, so no tenant layer yet.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
Dataset updated . Derived from public data sources.
About this data
Source: Florida DOR NAL assessment roll for Broward County (Fort Lauderdale / Broward County), as published October 8, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “ONYX TOWER LLC — Fort Lauderdale office property holdings”, https://buildingcensus.com/offices/fort-lauderdale/owners/onyx-tower-llc-4a172a (data as of October 8, 2026).