BuildingCensus

50 W MASHTA DR 2

Professional services building · Key Biscayne · 33149

At a glance

50 W MASHTA DR 2 in Key Biscayne, FL is listed on the Miami-Dade County property roll as “Professional services building”, folio 2452050410020. The roll records 921 sq ft of building area, a 1978 build year and an assessed value of $432,870 (2026 roll). It last sold for $100 in Sep 2020. 2 active business locations at this address appear in public records.

Active records here
2
business-tax + registry entities
Building area
921
sq ft (county roll)
Floors
—
county roll
Year built
1978
vintage
Assessed value
$432.9K
2026 roll
Assessed / sq ft
$470
assessed value per sq ft
Last sold
$100
Sep 2020
Sale / sq ft
$0
at the last recorded sale

Recorded transfers — county roll + state sale file

Sale history

RecordedPriceQualificationSourceInstrument
Sep 2020$100not ratedCounty 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 — 2 matched business locations

Tenants & business locations

CompanySuite / floorSinceSourceMatch
UNO CONSTRUCTION SERVICES LLCSTE 2Apr 2021County business taxfolio match · high
LUMA SERVICES LLCSTE 2Mar 2019County business taxfolio match · high

Miami-Dade County assessment roll 2026

Parcel record

FieldValue
folio2452050410020
Site address50 W MASHTA DR 2
Land use (DOR)1918 — Professional services building
Building area (actual)921 sq ft
Building area (gross)921 sq ft
Floors / units / buildings— / — / 1
Lot size—
Year built1978
Zoning (primary)6100
Land value$0
Building value$0
Total assessed value$432,870

Recorded owner (assessment roll)

SJ INVESTMENT LLC

Owner mailing address: 7480 SW 158 TERR, PALMETTO BAY, FL, 33157

Verify on the Property Appraiser →

Location

Address
50 W MASHTA DR 2
City
Key Biscayne
ZIP
33149
Coordinates
25.68628, -80.16425

Within ~650 m

Nearby office buildings

How does 50 W MASHTA DR 2 compare with other Miami office buildings?

At 921 sq ft, 50 W MASHTA DR 2 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 $470 per square foot of building area, against $203 across all office floor area on the roll.

The last recorded sale priced it at $0 per square foot.

What has happened at 50 W MASHTA DR 2 recently?

1 recorded transfer is on file for this parcel, the latest dated Sep 2020.

What does “PROFESSIONAL SERVICE BLDG : CONDOMINIUM - COMMERCIAL” mean for this parcel?

The Miami-Dade County roll classifies folio 2452050410020 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 2?

The recorded owner on the Miami-Dade County assessment roll (2026) is SJ INVESTMENT LLC. Owner mailing address on file: 7480 SW 158 TERR, PALMETTO BAY, FL, 33157.

What companies have offices at 50 W MASHTA DR 2?

2 active business locations at this building appear in Miami-Dade County public records, including UNO CONSTRUCTION SERVICES LLC, LUMA SERVICES LLC. Public records under-count tenants that don't hold a local receipt or register the address.

How big is 50 W MASHTA DR 2?

The Miami-Dade County roll records 921 sq ft of building area, a build year of 1978.

What is the assessed value of 50 W MASHTA DR 2?

$432,870 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 2 last sell?

The last recorded transfer was in Sep 2020 for $100 ($0 per square foot).

What is the folio for 50 W MASHTA DR 2?

Folio 2452050410020, site address 50 W MASHTA DR 2, 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 2

Everything here comes from public records, and public records go stale. If you know better, say so.

Data provenance — public records only

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 2452050410020.

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 2, Key Biscayne, FL (folio 2452050410020)”, https://buildingcensus.com/offices/miami/office-building-16d3e8f9 (data as of October 8, 2026).