Permit Record

Alteration Residential

40 Sherman St, Cambridge, MA 02138

ClassificationBuilding: Alteration and AdditionResidential Alteration
Reliable value$2,198
ContractorAir Tight Weatherization →
Permit record
Parties
Contractor
Air Tight Weatherization
Applicant
James Fortin
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
205-16
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
R
Building subtype
One or Two Family Dwelling
Geocode & dates
Coordinates
42.3859, -71.1307
Geocode confidence
100%
Geocode source
Not in source
Issued
May 3, 2021
Applied
Apr 30, 2021
Work class
Residential
Description
Source description

Blown in cellulose attic floor. Air Sealing.  Install door sweeps and weather stripping. Rim Joist - 6in Fiberglass Batting and 2in Thermal Barrier Polyiso. Vent bath fan. Attic Stair Cover w/ Carpentry.

Status
Current status
issued
Source status
Active
Provenance
First seen by PermitCore
May 18, 2026 · 16:17 UTC
Last seen
Aug 6, 2026 · 11:30 UTC
Last changed
May 18, 2026 · 16:17 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

2 permits at this parcel (parcel 205-16) · Nov 10, 2020 – May 3, 2021

  1. May 3, 2021This permitAlteration Residential · Issued$2,198.51Air Tight Weatherization
  2. Nov 10, 2020cambridge_aa_91007Alteration Residential · Issued$22,622Kod Construction Group

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

Other permits by Air Tight Weatherization

Showing up to 12 most-recent permits by this contractor in the indexed window

No other permits by this contractor in the indexed window.
Developer details
Permit #
cambridge_aa_118570
Canonical ID
309:cambridge_aa_118570
Source permit ID
cambridge_aa_118570
Browse Boston permits in the Market Explorer →Pull this permit via /v1/permits →