BuildingCensus

21 PORTER ST

Office · Boston · 02128

Active records here
0
business-tax + registry entities
Building area
4,275
sq ft (county roll)
Floors
2
county roll
Year built
1910
vintage
Assessed value
$758.5K
current roll
Assessed / sq ft
$177
assessed value per sq ft
Last sold
$1.4M
Jun 2022
Sale / sq ft
$327
at the last recorded sale

Recorded transfers — county roll + state sale file

Sale history

RecordedPriceQualificationSourceInstrument
Jun 2022$1,400,000not 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.

Boston assessment roll

Parcel record

FieldValue
parcel ID0105915000
Site address21 PORTER ST
Land use (DOR)342 — Office
Building area (actual)4,275 sq ft
Floors / units / buildings2 / — / —
Lot size0 sq ft
Year built1910
Zoning (primary)—
Land value—
Building value—
Total assessed value$758,500

Recorded owner (assessment roll)

43 OCEAN STREET LLC

Owner mailing address: Lantern, FRAMINGHAM, MA, 01702

Location

Address
21 PORTER ST
City
Boston
ZIP
02128

Within ~650 m

Nearby office buildings

No other office parcels within ~650 m.

Frequently asked questions

Who owns 21 PORTER ST?

The recorded owner on the Boston assessment roll (current) is 43 OCEAN STREET LLC. Owner mailing address on file: Lantern, FRAMINGHAM, MA, 01702.

What companies have offices at 21 PORTER ST?

No business locations at this building appear in the public records ingested so far — no licence, tax or registry record currently lists this address; that is a gap in the record, not proof the building is empty.

How big is 21 PORTER ST?

The county assessment roll records 4,275 sq ft of building area across 2 floors, built in 1910, on a 0 sq ft lot, with a current assessed value of $758,500.

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: Boston assessment roll, parcel ID 0105915000.