1321 ALTON RD
Office building — one story · Miami Beach · 33139 · Miami Beach — South Beach
At a glance
1321 ALTON RD in Miami Beach, FL is listed on the Miami-Dade County property roll as “Office building — one story”, folio 0242030098890. The roll records 1,913 sq ft of building area, 1 floors, a 1934 build year and an assessed value of $1,639,348 (2026 roll). It last sold for $795,000 in Dec 2004. 2 active business locations at this address appear in public records.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Dec 2004 | $795,000 | 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 — 2 matched business locations
Tenants & business locations
Registered entities at this address (2) — 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 |
|---|---|---|---|
| UM INSURANCE GROUP INC. | — | Jul 2025 | address match · high |
| DMD INSURANCE CORP | — | Jun 2022 | address match · high |
Miami-Dade County assessment roll 2026
Parcel record
| Field | Value |
|---|---|
| folio | 0242030098890 |
| Site address | 1321 ALTON RD |
| Land use (DOR) | 1713 — Office building — one story |
| Building area (actual) | 1,913 sq ft |
| Building area (gross) | 1,913 sq ft |
| Floors / units / buildings | 1 / — / 1 |
| Lot size | 7,500 sq ft |
| Year built | 1934 |
| Zoning (primary) | 4800 |
| Land value | $1,500,000 |
| Building value | $139,348 |
| Total assessed value | $1,639,348 |
Recorded owner (assessment roll)
STAR PROPERTYES XV LLC
Owner mailing address: 3750 W FLAGER ST, CORAL GABLES, FL, 33134
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
- 1321 ALTON RD
- City
- Miami Beach
- Submarket
- Miami Beach — South Beach
- ZIP
- 33139
- Coordinates
- 25.78438, -80.14064
Submarket labels are informal ZIP-derived groupings, not official designations.
Within ~650 m
Nearby office buildings
- 960 ALTON RD13 tenants
24,294 sq ft · 2 fl · 1975
- 1231 W 14 ST1 tenants
13,245 sq ft · 2 fl · 1941
- 1200 ALTON RD7 tenants
11,122 sq ft · 1 fl · 1951
- 1414 ALTON RD2 tenants
6,007 sq ft · 1 fl · 1974
- 1355 ALTON RD2 tenants
3,373 sq ft · 1 fl · 1940
- 1329 ALTON RD2 tenants
3,245 sq ft · 1 fl · 1933
How does 1321 ALTON RD compare with other Miami office buildings?
At 1,913 sq ft, 1321 ALTON RD 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 $857 per square foot of building area, against $203 across all office floor area on the roll.
The last recorded sale priced it at $416 per square foot.
Does the owner of 1321 ALTON RD hold other Miami office property?
2 Miami office properties (2 parcels, 4.1K sq ft) are recorded to 2 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 1321 ALTON RD recently?
1 recorded transfer is on file for this parcel, the latest dated Dec 2004.
What does “OFFICE BUILDING - ONE STORY : OFFICE BUILDING” mean for this parcel?
The Miami-Dade County roll classifies folio 0242030098890 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 4800.
Frequently asked questions
Who owns 1321 ALTON RD?
The recorded owner on the Miami-Dade County assessment roll (2026) is STAR PROPERTYES XV LLC. Owner mailing address on file: 3750 W FLAGER ST, CORAL GABLES, FL, 33134.
What companies have offices at 1321 ALTON RD?
2 active business locations at this building appear in Miami-Dade County public records, including UM INSURANCE GROUP INC., DMD INSURANCE CORP. Public records under-count tenants that don't hold a local receipt or register the address.
How big is 1321 ALTON RD?
The Miami-Dade County roll records 1,913 sq ft of building area, 1 floors, a build year of 1934. It sits on a 7,500 sq ft lot.
What is the assessed value of 1321 ALTON RD?
$1,639,348 on the 2026 Miami-Dade County roll — $1,500,000 land and $139,348 building. Assessed values are taxable-roll figures, not market prices.
When did 1321 ALTON RD last sell?
The last recorded transfer was in Dec 2004 for $795,000 ($416 per square foot).
What is the folio for 1321 ALTON RD?
Folio 0242030098890, site address 1321 ALTON RD, Miami Beach. It is the key to look the parcel up in the Miami-Dade County Property Appraiser — assessment roll.
More around 1321 ALTON RD
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.
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 0242030098890.
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, “1321 ALTON RD, Miami Beach, FL (folio 0242030098890)”, https://buildingcensus.com/offices/miami/office-building-0fc7c7eb (data as of October 8, 2026).