6303 SW 40 ST
Office building — one story · Unincorporated County · 33155 · Westchester / Bird Road
At a glance
6303 SW 40 ST in Unincorporated County, FL is listed on the Miami-Dade County property roll as “Office building — one story”, folio 3040130191240. The roll records 2,826 sq ft of building area, 1 floors, a 1940 build year and an assessed value of $1,157,658 (2026 roll). 2 active business locations at this address appear in public records.
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.
Public record — 3 matched business locations
Tenants & business locations
| Company | Suite / floor | Since | Source | Match |
|---|---|---|---|---|
| ENT AND ALLERGY ASSOCIATES OF FLORIDA LLC | — | Jul 2025 | County business tax | folio match · high |
| ACSI COMM BEHAVIORAL CENTER, LLC. | — | Oct 2021 | Certificate of use | folio match · high |
Former / closed records (1)
| Company | Suite | Since | Source |
|---|---|---|---|
| ACSI COMMUNITY BEHAVIORAL CENTER LLC | — | May 2022 | County business tax |
Miami-Dade County assessment roll 2026
Parcel record
| Field | Value |
|---|---|
| folio | 3040130191240 |
| Site address | 6303 SW 40 ST |
| Land use (DOR) | 1713 — Office building — one story |
| Building area (actual) | 2,826 sq ft |
| Building area (gross) | 2,826 sq ft |
| Floors / units / buildings | 1 / — / 1 |
| Lot size | 8,925 sq ft |
| Year built | 1940 |
| Zoning (primary) | 6900 |
| Land value | $981,750 |
| Building value | $175,908 |
| Total assessed value | $1,157,658 |
Recorded owner (assessment roll)
6303 SW 40 STREET LLC
Owner mailing address: 9375 NW 117 AVE, MIAMI, FL, 33178
2 Miami office properties share this owner mailing address →
Commercial property is usually held one building per entity; a shared mailbox is how the roll reveals a portfolio. It is evidence of common ownership, not proof.
Location
- Address
- 6303 SW 40 ST
- City
- Unincorporated County
- Submarket
- Westchester / Bird Road
- ZIP
- 33155
- Coordinates
- 25.73390, -80.29700
Submarket labels are informal ZIP-derived groupings, not official designations.
Within ~650 m
Nearby office buildings
- 6495 SW 40 ST2 tenants
16,940 sq ft · 3 fl · 2020
- 6090 SW 40 ST5 tenants
14,740 sq ft · 2 fl · 1981
- 6205 SW 40 ST0 tenants
14,265 sq ft · 2 fl · 1986
- 6080 SW 40 ST11 tenants
10,802 sq ft · 2 fl · 1968
- 6035 SW 40 ST5 tenants
10,403 sq ft · 2 fl · 1982
- 6085 SW 40 ST3 tenants
9,634 sq ft · 1 fl · 1982
How does 6303 SW 40 ST compare with other Miami office buildings?
At 2,826 sq ft, 6303 SW 40 ST 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 $410 per square foot of building area, against $203 across all office floor area on the roll.
Does the owner of 6303 SW 40 ST hold other Miami office property?
2 Miami office properties (18 parcels, 9.9K sq ft) are recorded to 18 owner entities sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.
What has happened at 6303 SW 40 ST recently?
In the last 12 months 0 businesses opened a receipt here and 1 closed one.
What does “OFFICE BUILDING - ONE STORY : OFFICE BUILDING” mean for this parcel?
The Miami-Dade County roll classifies folio 3040130191240 as “OFFICE BUILDING - ONE STORY : OFFICE BUILDING” (use code 1713). 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 6900.
Frequently asked questions
Who owns 6303 SW 40 ST?
The recorded owner on the Miami-Dade County assessment roll (2026) is 6303 SW 40 STREET LLC. Owner mailing address on file: 9375 NW 117 AVE, MIAMI, FL, 33178.
What companies have offices at 6303 SW 40 ST?
2 active business locations at this building appear in Miami-Dade County public records, including ENT AND ALLERGY ASSOCIATES OF FLORIDA LLC, ACSI COMM BEHAVIORAL CENTER, LLC.. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 6303 SW 40 ST?
The Miami-Dade County roll records 2,826 sq ft of building area, 1 floors, a build year of 1940. It sits on a 8,925 sq ft lot.
What is the assessed value of 6303 SW 40 ST?
$1,157,658 on the 2026 Miami-Dade County roll — $981,750 land and $175,908 building. Assessed values are taxable-roll figures, not market prices.
What is the folio for 6303 SW 40 ST?
Folio 3040130191240, site address 6303 SW 40 ST, Unincorporated County. It is the key to look the parcel up in the Miami-Dade County Property Appraiser — assessment roll.
More around 6303 SW 40 ST
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 certificates of use — Certificates authorising a business to occupy a space: the date it was issued, the corporate and trading names, the county's business-use label, the suite, and the officers named on the application.
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 3040130191240.
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, “6303 SW 40 ST, Unincorporated County, FL (folio 3040130191240)”, https://buildingcensus.com/offices/miami/office-building-408fd033 (data as of October 8, 2026).