Permit Record

Alteration Residential

409 Main St, Boston, MA 02129

ClassificationShort Form Bldg Permit - INTEXTResidential Alteration
Reliable value$7,594
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
William Nichols
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
201129000
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
1-2FAM
Geocode & dates
Coordinates
42.3807, -71.0701
Geocode confidence
100%
Geocode source
Not in source
Issued
May 18, 2018
Applied
Not in source
Work class
Residential
Description
Source description

4 replacement windows

Status
Current status
issued
Source status
Open
Expired
Nov 18, 2018
Provenance
First seen by PermitCore
May 4, 2026 · 20:12 UTC
Last seen
Jun 25, 2026 · 00:07 UTC
Last changed
May 15, 2026 · 09:37 UTC
Data-quality checks0 of 12 flagged

0 of 12 data-quality rules flagged anything on this permit.

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
  • Valuation is placeholder
Project timeline at this parcel

3 permits at this parcel (parcel 201129000) · May 21, 2010 – May 18, 2018

  1. May 18, 2018This permitAlteration Residential · Issued$7,594.74
  2. Apr 19, 2016SF581250Alteration Residential · Issued$6,000
  3. May 21, 2010G26279MEP Plumbing · Finaled$300

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

Developer details
Permit #
SF830527
Canonical ID
69:SF830527
Source permit ID
SF830527
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