50 W MASHTA DR
Professional services building · Key Biscayne · 33149
At a glance
50 W MASHTA DR in Key Biscayne, FL is listed on the Miami-Dade County property roll as “Professional services building”, folio 2452050410010. The roll records 1,278 sq ft of building area, a 1978 build year and an assessed value of $581,490 (2026 roll). It last sold for $825,000 in Jul 2015. 78 active business locations at this address appear in public records.
Derived from suite and floor strings in the occupancy records
Which floors show activity
- 61 on record
- 5no record
- 42 on record
- 35 on record
- 2no record
- 11 on record
Floors are read from suite numbers on Miami-Dade business-tax receipts (suite 4900 → floor 49). A floor with no record is not necessarily vacant — it may be mechanical, occupied by the owner, or let to a business whose receipt carries no suite. Receipts also lag reality by months. This shows where the public record places businesses, not a rent roll or an availability report. A stretch of quiet floors is not contiguous space for rent — it is contiguous silence in the record, which is the closest thing the public record has to that question and worth exactly what it costs to check.
Permits and tenant turnover — what runs ahead of a listing
Recent activity
Permits come from Miami-Dade County, with job cost and square footage added from the City of Miami's file where the building sits in the city. Arrivals and departures are business-tax receipts opened and closed at this address. None of this is an availability listing. A permit means work was authorised, not that space is for rent, and a closed receipt can mean a business moved, renamed or simply stopped renewing. It is the record that runs ahead of a listing, which is the only part of "what is coming available" that is public at all.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Jul 2015 | $825,000 | not rated | County roll | — |
Prices are the consideration the documentary stamps indicate, as recorded by Miami-Dade County. A qualification code is the property appraiser's judgement of whether a transfer was arm's length; the state publishes it only for the current roll period, so older transfers appear unrated rather than assumed clean. Whether a building is on the market today, and at what price, is not a public record and is not shown here — asking prices, listings and lease terms live in private commercial databases.
Public record — 79 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| MG COMPANIES LLC | STE 4W | Apr 2022 | County business tax | address match · high |
| KEY BASIS | STE 3 | Feb 2022 | County business tax | address match · high |
| RAIG CONSTRUCTION & CARPENTRY LLC | STE 3C | Dec 2018 | County business tax | folio match · high |
| LANCASTER & REED LLCvia REED SHERRY L CPA | STE 6 | Oct 2018 | County business tax | address match · high |
| GENERAL MARKETING SOLUTIONS, LLC | STE 4 | Oct 2018 | County business tax | address match · high |
| TOMPKINS CONSTRUCTION INC | STE 3 | Oct 2017 | County business tax | address match · high |
| CLOSING THE GAPS INC | STE 3B | Oct 2002 | County business tax | address match · high |
| INVERTEC CORP | STE 3A | Jul 1989 | County business tax | address match · high |
| LAND HEADQUARTERS CO | STE 1 | Aug 1988 | County business tax | address match · high |
Registered entities at this address (69) — Florida corporate registry
Active Florida entities whose registered principal address is this building. A registration is evidence of presence, not a verified lease — many are holding companies or entities administered from a tenant's suite.
| Entity | Suite / floor | Filed | Match |
|---|---|---|---|
| BALAM STUDIO LLC | SUITE 4 | May 2026 | address match · high |
| PLX DIGITAL HEALTH INC. | 4 | Apr 2026 | address match · high |
| GILSOL QUANT LLC | SUITE 2 | Apr 2026 | address match · high |
| PLX OPERATING SYSTEMS INC | 102 | Mar 2026 | address match · high |
| LUISYNC HOLDINGS LLC | SUITE 2 | Jan 2026 | address match · high |
| MIAMI SUNRISE LLC | — | Dec 2025 | address match · high |
| HOLLEMAN ESTATES LLC | STE 4 | Jun 2025 | address match · high |
| LANCASTER & REED LLC | 6 | Jun 2025 | address match · high |
| RCP I COINVESTMENT LLC | SUITE 2 | May 2025 | address match · high |
| JAWS GROUP LLC | — | Apr 2025 | address match · high |
| WRE AT FLAGLER LLC | SUITE 4 | Apr 2025 | address match · high |
| LION OAK REAL ESTATE LLC | SUITE 2 | Mar 2025 | address match · high |
| CIRCLE NETWORK LLC | 4 | Feb 2025 | address match · high |
| NEXTHEALTH 360, LLC | STE 4 | Dec 2024 | address match · high |
| SAVE THE TURTLES LLC | — | Oct 2024 | address match · high |
| RYO CAPITAL PARTNERS LLC | SUITE 2 | May 2024 | address match · high |
| HORUS369 LLC | SUITE 4 | Jan 2024 | address match · high |
| NIRVANA369 LLC | SUITE 4 | Jan 2024 | address match · high |
| GASTAP CORP | — | Nov 2023 | address match · high |
| BE CLEAR ADVERTISING LLC | SUITE 2 | Oct 2023 | address match · high |
| FHM MANAGEMENT LLC | STE 4 | Feb 2023 | address match · high |
| FHM TRADE LIMITED PARTNERSHIP | STE 4 | Feb 2023 | address match · high |
| THE NAUTI GROUP LLC | SUITE 4 | Jan 2023 | address match · high |
| LMI TRADE LLC | SUITE 4 | Jan 2023 | address match · high |
| FLOWSQUARE LLC | — | Nov 2022 | address match · high |
| JCMFF LLC | STE 4 | Oct 2022 | address match · high |
| XMART HEALTHLY LIVING CORP | SUITE 4 | Oct 2022 | address match · high |
| XMART HEALTH & WEALTH ADVISORS LLC | SUITE 4 | Oct 2022 | address match · high |
| 2554 SOUTHWEST 8TH ST, LLC | SUITE 2 | May 2022 | address match · high |
| LOOP INTERMODAL LLC | SUITE 4 | Apr 2022 | address match · high |
| MG COMPANIES LLC | — | Feb 2022 | address match · high |
| LISYKA, LLC | STE 4 | Oct 2021 | address match · high |
| KEY BASIS, LLC | — | Sep 2021 | address match · high |
| 30 NW 59 STREET INVESTMENT, LLC | SUITE 2 | Aug 2021 | address match · high |
| SWI MANAGEMENT, LLC | SUITE 2 | Aug 2021 | address match · high |
| 147 NW 59 ST INVESTMENT, LLC | SUITE 2 | Jul 2021 | address match · high |
| BEJPAS INVESTMENTS, LLC. | — | Jun 2021 | address match · high |
| MBROSFF LLC | STE 4 | Mar 2021 | address match · high |
| JACOBS TRADING, LLC | suite 2 | Mar 2021 | address match · high |
| 1255 NW 60 ST, LLC | SUITE 2 | Feb 2021 | address match · high |
| 2511 NW 25 AVE, LLC | SUITE 2 | Feb 2021 | address match · high |
| YGRIEGA, LLC | — | Jun 2020 | address match · high |
| SOUTHERN WINDS DEVELOPMENTS, INC. | SUITE 2 | Jan 2020 | address match · high |
| LUMA SERVICES LLC | — | Nov 2018 | address match · high |
| FOR SISTERS INC | STE 4 | Apr 2018 | address match · high |
| MIAMI MASTERPIECE LLC | Suite 3 | Feb 2018 | address match · high |
| EPM USA HOLDINGS LLC | STE 6 | Dec 2017 | address match · high |
| XL2007 LLC | 4 | Nov 2017 | address match · high |
| GENERAL MARKETING SOLUTIONS, LLC | — | Oct 2017 | address match · high |
| BOLEITA SUR, LLC | SUITE 3 | Apr 2017 | address match · high |
| REED CAPITAL PARTNERS LLC | STE 6 | Jul 2016 | address match · high |
| SLN MANAGEMENT LLC | — | Jun 2016 | address match · high |
| THOMSON GROUP INTERNATIONAL, LLC | 3A | Feb 2016 | address match · high |
| JASU JUICE, LLC | Suite 4 | Nov 2015 | address match · high |
| MBROS KB LLC | STE 4 | Sep 2015 | address match · high |
| SARLA INVESTMENTS, LLC | SUITE 1 | Apr 2015 | address match · high |
| VALULADA, LLC | SUITE 2 | Mar 2015 | address match · high |
| INDIAN RIVER RESIDENTIAL LLC | SUITE 6 | Mar 2015 | address match · high |
| 7540 NE MIAMI CT LLC | — | Dec 2014 | address match · high |
| 785 ALLENDALE, LLC | — | Sep 2014 | address match · high |
| ALEJANDRA PASARELL, P.A. | — | Sep 2014 | address match · high |
| ELECTRONIC RETAIL SOLUTIONS INC. | STE 4 | Apr 2010 | address match · high |
| INNOVENTIONS INTERNATIONAL, LLC | SUITE 4 | Jul 2009 | address match · high |
| JAINA INVESTMENTS, LLC | SUITE 1 | May 2009 | address match · high |
| GARAGE DEVELOPERS LLC | Suite No. 4 | Mar 2006 | address match · high |
| MEDIA INNOVATIONS, LLC | — | Sep 2005 | address match · high |
| MUK INVESTMENT CORP. | — | Aug 2005 | address match · high |
| JIM ERASO TRAVEL INC | STE 3 | Mar 2003 | address match · high |
| THE PROFESSIONALS' BUILDING OF KEY BISCAYNE, INC. | STE 6 | Feb 1979 | address match · high |
Former / closed records (1)
| Company | Suite | Since | Source |
|---|---|---|---|
| ECO PLUS GROUP LLC | STE 4 | Jan 2018 | County business tax |
Other public registries naming this address
Corroboration
| Organisation | Registry | What it records | Reference |
|---|---|---|---|
| MIAMI MASTERPIECE LLC · SUITE 3 | State licence | Real Estate Corporation | 1055761 |
| Osigu Inc. · 4 | SEC filer | — | CIK 0001960586 |
| SLN Management, LLC · STE 4 | SEC filer | — | CIK 0001826237 |
| Thomson Group International LLC · 3A | SEC filer | — | CIK 0001790966 |
These registries are not tenant rosters and are not counted as tenancies. Each one records an organisation giving this address to a regulator for its own purposes — a bank registering a branch, a firm holding a state licence, a public company telling the SEC where it operates. That last one is the strongest tenant evidence in public record, because the company filed it about itself.
Miami-Dade County assessment roll 2026
Parcel record
| Field | Value |
|---|---|
| folio | 2452050410010 |
| Site address | 50 W MASHTA DR |
| Land use (DOR) | 1918 — Professional services building |
| Building area (actual) | 1,278 sq ft |
| Building area (gross) | 1,278 sq ft |
| Floors / units / buildings | — / — / 1 |
| Lot size | — |
| Year built | 1978 |
| Zoning (primary) | 6100 |
| Land value | $0 |
| Building value | $0 |
| Total assessed value | $581,490 |
Recorded owner (assessment roll)
SARLA INVESTMENTS LLC
Owner mailing address: 50 W MASHTA DR J, MIAMI, FL, 33149
The owner is on site. A business-tax receipt at this address is held in the owner's own name, so the public record shows an owner-occupier rather than a landlord letting the space.
Location
- Address
- 50 W MASHTA DR
- City
- Key Biscayne
- ZIP
- 33149
- Coordinates
- 25.68628, -80.16425
Within ~650 m
Nearby office buildings
- 520 CRANDON BLVD5 tenants
15,532 sq ft · 2 fl · 2001
- 580 CRANDON BLVD33 tenants
14,854 sq ft · 2010
- 30 W MASHTA DR43 tenants
14,174 sq ft · 2 fl · 1988
- 753 CRANDON BLVD A0 tenants
4,720 sq ft · 1998
- 753 CRANDON BLVD B0 tenants
2,772 sq ft · 1998
- 50 W MASHTA DR 61 tenants
1,444 sq ft · 1978
How does 50 W MASHTA DR compare with other Miami office buildings?
At 1,278 sq ft, 50 W MASHTA DR is less than a tenth the size of the average office building on the Miami-Dade County roll, which comes to 29,215 sq ft across 4,288 buildings.
Its assessed value works out to $455 per square foot of building area, against $203 across all office floor area on the roll.
The last recorded sale priced it at $646 per square foot.
Does the owner of 50 W MASHTA DR hold other Miami office property?
SARLA INVESTMENTS LLC also holds a business-tax receipt at this address, so the public record shows an owner-occupier rather than a landlord letting the space.
What has happened at 50 W MASHTA DR recently?
1 recorded transfer is on file for this parcel, the latest dated Jul 2015.
In the last 12 months 0 businesses opened a receipt here and 1 closed one.
What does “PROFESSIONAL SERVICE BLDG : CONDOMINIUM - COMMERCIAL” mean for this parcel?
The Miami-Dade County roll classifies folio 2452050410010 as “PROFESSIONAL SERVICE BLDG : CONDOMINIUM - COMMERCIAL” (use code 1918). BuildingCensus includes a parcel in its office census when the roll gives it an office-class use, so the label is the county's, not an inference.
Its primary zoning on the roll is 6100.
Frequently asked questions
Who owns 50 W MASHTA DR?
The recorded owner on the Miami-Dade County assessment roll (2026) is SARLA INVESTMENTS LLC. Owner mailing address on file: 50 W MASHTA DR J, MIAMI, FL, 33149.
What companies have offices at 50 W MASHTA DR?
78 active business locations at this building appear in Miami-Dade County public records, including MG COMPANIES LLC, KEY BASIS, RAIG CONSTRUCTION & CARPENTRY LLC, LANCASTER & REED LLC, GENERAL MARKETING SOLUTIONS, LLC. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 50 W MASHTA DR?
The Miami-Dade County roll records 1,278 sq ft of building area, a build year of 1978.
What is the assessed value of 50 W MASHTA DR?
$581,490 on the 2026 Miami-Dade County roll — $0 land and $0 building. Assessed values are taxable-roll figures, not market prices.
When did 50 W MASHTA DR last sell?
The last recorded transfer was in Jul 2015 for $825,000 ($646 per square foot).
What is the folio for 50 W MASHTA DR?
Folio 2452050410010, site address 50 W MASHTA DR, Key Biscayne. It is the key to look the parcel up in the Miami-Dade County Property Appraiser — assessment roll.
More around 50 W MASHTA DR
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Miami-Dade County Property Appraiser — assessment roll — Parcel identity, site address, recorded owner, use code, areas, year built and assessed values, via the county's public GIS services (MD_LandInformation, PaGis layer).
- Miami-Dade County Local Business Tax roll — Business-tax receipts: business name, premises address (incl. suite/floor), account status and start date, via the county's public GIS services.
- Florida Division of Corporations (Sunbiz) — corporate data file — Registered entities: document number, status, filing date, registered agent and principal address, from the state's public quarterly data file.
- Miami-Dade County Property Appraiser — recorded sale — The last recorded transfer price and date for the parcel, from the county's public property point view.
- Florida Department of Revenue — Sale Data File — Every transfer in the current roll period with the property appraiser's sale qualification code, vacant/improved code, multi-parcel flag and the clerk's recording reference.
- Florida Department of Business and Professional Regulation — licensee extracts — Licensed business entities at an address — real-estate corporations, partnerships and branch offices, with licence number and status.
- U.S. Securities and Exchange Commission — EDGAR filer submissions — The business address a public company files with its regulator, plus its industry classification and ticker.
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.
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Dataset updated . Source: Miami-Dade County assessment roll, folio 2452050410010.
About this data
Source: Miami-Dade County Property Appraiser — assessment roll, as published October 8, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “50 W MASHTA DR, Key Biscayne, FL (folio 2452050410010)”, https://buildingcensus.com/offices/miami/office-building-9f3a0909 (data as of October 8, 2026).