421 Park DR, Boston MA

Parcel · Laboratory · Parcel of record· Boston, MA, Suffolk County

Source: City of Boston Assessing Department

No date on record · this record's last observation

Relationships: 1
Dated events: 2

No date on record · this record's last observation

Data as of an unrecorded date (this record's last observation) from county and municipal records. Page built Sep 25, 2026, 1:59 PM UTC and rebuilt at most every 15 minutes.

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Right now

one signal names this record (all real estate signals)

#1NewFactReal estateReal Estate Development / buildings entering service

421 Park DR: an occupancy certificate was issued 2026-08-21, declared valuation $437,981,077. 675,000 sq ft stated.

Dated 2026-08-21 (source_record); first seen by DFX 2026-08-30.

Exposure: $438M knowndisclosed amount
Who this matters to: CRE lenders
Historical: not a measured predictor

Real Estate Development / buildings entering serviceAug 21, 2026 · seen 25 days ago

Across DFX

This entity has not been resolved onto another DFX graph by a shared identifier. A name match elsewhere would be a candidate, never an identity, and none is recorded.

Facts

fact = as filed or announced; derived = computed by DFX; estimate = a band, never a point

Parcel number: 2100077200
Address: 421 Park DR
Municipality: Boston
County: Suffolk
State: MA
Land use: LABORATORY
Assessed total: $249M
Assessed land: $65.3M
Assessed building: $183M
Assessment year: 2026

Relationships

Owns (1)

← ARE MA REGION NO 112 OWNEROrganization
observedCounty and municipal records

Dated events

Order

Occurred
21 Aug 2026
Certificate of occupancy
421 Park DR: an occupancy certificate was issued 2026-08-21, declared valuation $437,981,077. 675,000 sq ft stated.
County and municipal records
$438M
Occurred
4 Sep 2024
Demolition filed
421 Park DR: a demolition permit was issued 2024-09-04, declared valuation $8,900.
County and municipal records
$8,900

Provenance

Graph: Real Estate
Canonical id
First observed: n/a
Last observed: n/a : not yet measured
Source families: County and municipal records
1 registered feed stand behind this record; each fact above carries its own dates and, where the publisher serves one, its document.
Resolution: Identity across graphs by shared identifier (CRD, CIK, EIN, ADV fund id, individual CRD) or citation; a name match is shown as a candidate and never merged.