The Boston ArchiveBoston, Massachusetts

Dataset

Parcels (2025)

City of Boston 2025 parcels created by the Assessing Department. To add ownership information please join the Property Assessment CSV file in Analyze Boston with Parcels 2025 geospatial data using MAP_PAR_ID and GIS_ID fields.

Dataset

Publisher
Boston Maps
Spatial coverage
Boston, Massachusetts
Fields
16
Publisher's page
https://data.boston.gov/dataset/parcels-2025

Artifacts

“Preserved” means the archive holds the bytes and their digest. “Referenced” means it holds the record of them and nothing more. The archive does not claim a holding it cannot prove.

FormatPreservationSizeDigestSource
ArcGIS GeoServices REST APIreferenced——source
CSVpreserved34808291dbdbe3e30583294e777f8de5cf683af8292fde0a3d8574f309731b820f95e28csource
GeoJSONpreserved2643254484741d8d75c22b42add4eec1416f5e262e9c2e8db79b58be9614ac39cb7dd7d9source
KMLpreserved26117945b14e2919f0f9721bec1af1359fccf57fe745a2b5d8c74a06ac48ff0a1bd1ec39source
SHPreferenced——source

Column dictionary

The publisher's own dictionary, preserved verbatim. The archive does not reword a schema into its own vocabulary — how the publisher named a column is evidence about the publisher.

ColumnTypeDescription
MAP_PAR_IDtext
LOC_IDtext
POLY_TYPEtext
MAP_NOtext
SOURCEtext
PLAN_IDtext
BND_CHKtext
NO_MATCHtext
TOWN_IDtext
last_edited_datetext
created_usertext
created_datetext
last_edited_usertext
Shape_Lengthtext
Shape_Areatext
shape_wkttext

The complete dictionary, exactly as the publisher words it, is served as its own holding at /asset/11d1ee6481aa83e90e12b235c9d163d4/parcels-2025-columns.json — 1271 bytes, SHA-256 11d1ee6481aa83e9…, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0.

Questions this record answers

Each answer is composed only from fields this record carries, and names the attestation for what it says. A question the record cannot answer from its own attested content is not asked here. Where a boundary is described as official it was promulgated by an authority with the power to draw it and is not amended by anything on the vernacular layer; where it is described as vernacular it is held by attestation alone and amends no official boundary.

Who publishes Parcels (2025), and under what license?

Boston Maps publishes it. The archive accessioned it under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0 (public domain), and holds the publisher's own column dictionary verbatim rather than reworded into the archive's vocabulary — how a publisher names a column is evidence about the publisher.

Attested by: City of Boston Open Data Portal (Analyze Boston), retrieved 2 September 2026, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0.

What does Parcels (2025) cover?

In space, Boston, Massachusetts.

Attested by: City of Boston Open Data Portal (Analyze Boston), retrieved 2 September 2026, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0.

How large is Parcels (2025)?

16 columns, as the publisher's own catalog reports them.

Attested by: City of Boston Open Data Portal (Analyze Boston), retrieved 2 September 2026, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0.

Can the archive hand back the bytes of Parcels (2025)?

Yes, for 3 of 5 distributions. Each preserved artifact is served at its own address with the digest recorded at retrieval emitted in an x-archive-sha256 header, and is handed over as an attachment: preserved material is evidence, not content, and is never rendered on this origin.

Attested by: City of Boston Open Data Portal (Analyze Boston), retrieved 2 September 2026, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0.

What does the archive hold for Parcels (2025), and under what license?

The Boston Archive holds this record of Parcels (2025) from City of Boston Open Data Portal (Analyze Boston), retrieved 2 September 2026, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0 (public domain). 3 recorded transforms stand between the retrieved bytes and this record. Attribution is due to City of Boston.

Attested by: City of Boston Open Data Portal (Analyze Boston), retrieved 2 September 2026, under Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0.

Identity

Identifier
urn:lemay:boston:dataset:parcels-2025
Canonical URL
https://boston.fyi/dataset/parcels-2025
As JSON
https://boston.fyi/dataset/parcels-2025.json
Version
2 · last changed 13 September 2026

Provenance

Source
City of Boston Open Data Portal (Analyze Boston) — source of record
License
Open Data Commons Public Domain Dedication and Licence (PDDL) 1.0 (public_domain)
Retrieved
2 September 2026
Source identifier
parcels-2025
Attribution
City of Boston
Rights as stated
Open Data Commons Public Domain Dedication and License (PDDL)

Transform ladder

#OperationDescriptionTool
1fetchretrieved the dataset's metadata record from the CKAN package_show endpointarchive-ingest 0.1.0
2normalizemapped the portal's catalog fields onto the archive's Dataset record; the publisher's own wording and column dictionary are preserved verbatimarchive-ingest 0.1.0
3externalize-column-dictionaryThe publisher's 16-column dictionary left the inline page graph and became a preserved holding at /asset/11d1ee6481aa83e90e12b235c9d163d4/parcels-2025-columns.json, served verbatim with its own digest. The record's stored field schema is unchanged; the graph now addresses it instead of carrying it.archive-ingest 0.1.0