Permit Record

Alteration Commercial

523 Cambridge St, Boston, MA 02134

ClassificationLong Form/Alteration Permit - SDCommercial Alteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
John Walsh
Owner
Not in source
Architect
Not in source
Engineer
Not in source
Contractor license
Not in source
Building & lot · PLUTO
Building class
Not in source
Zoning district
Not in source
Lot area
Not in source
Year built
Not in source
Units (total)
Not in source
Units (residential)
Not in source
Units (commercial)
Not in source
Floor area
Not in source
Parcel & enrichment
Parcel APN
2101293000
Climate zone (IECC)
5A
Roof area (est.)
Not derivable — no building-size signal for this permit
HVAC tonnage (est.)
Not derivable — no building-size signal for this permit
Building type
Not in source
Building subtype
Comm
Geocode & dates
Coordinates
42.3533, -71.1389
Geocode confidence
100%
Geocode source
Not in source
Issued
Jun 8, 2023
Applied
Not in source
Work class
Commercial
Description
Source description

Combine lot 2101293000 (523 Cambridge St.) , with 3,238 sqft with lot 2101292000 (515 Cambridge St.) , with 5,807 sqft to create lot of 9,045 sqft. Upon completion of consolidation application to erect multi family residential dwelling. Companion applications ALT1451585 and ERT1445179eplan; Proviso: approval is conditional to the issuance of ERT1445179

Status
Current status
issued
Source status
Open
Expired
Dec 8, 2023
Provenance
First seen by PermitCore
May 4, 2026 · 20:05 UTC
Last seen
Jun 24, 2026 · 23:02 UTC
Last changed
May 15, 2026 · 09:21 UTC
Data-quality checks1 of 12 flagged

1 of 12 data-quality checks flagged on this permit. Detail below.

Valuation is placeholder
valuation_usd_is_placeholder

valuation_usd matched a known placeholder (often 0 or 1) used by the source when the real valuation wasn't reported.

Checks not flagged

  • Geocode out of bounds
  • Geocode is sentinel
  • Issued date in the future
  • Issued date parse bug
  • Issued date is placeholder
  • Commercial units is placeholder
  • Residential units out of bounds
  • Residential units is placeholder
  • Total units out of bounds
  • Total units is placeholder
  • Valuation out of bounds
Project timeline at this parcel

2 permits at this parcel (parcel 2101293000) · Apr 5, 2013 – Jun 8, 2023

  1. Jun 8, 2023This permitAlteration Commercial · Issued
  2. Apr 5, 2013SF232305Roofing · Issued$6,100

Full permit history at this parcel · as of Jul 8, 2026.

Developer details
Permit #
ALT1445173
Canonical ID
69:ALT1445173
Source permit ID
ALT1445173
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