Permit Record

Demolition

173 Sherman St, Cambridge, MA 02140

ClassificationBuilding: Alteration and AdditionResidential Demolition
Reliable value$800
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Chadd Mars
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
194-82
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
Townhouse
Geocode & dates
Coordinates
42.3921, -71.1331
Geocode confidence
100%
Geocode source
Not in source
Issued
Oct 8, 2025
Applied
Sep 4, 2025
Work class
Residential
Description
Source description

Replace and extend front and side attached decks of house.

Status
Current status
issued
Source status
Active
Provenance
First seen by PermitCore
May 18, 2026 · 16:17 UTC
Last seen
Jul 2, 2026 · 11:40 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 194-82) · Jan 19, 2021 – Oct 8, 2025

  1. Oct 8, 2025This permitDemolition · Issued$800
  2. Jan 19, 2021cambridge_aa_105750Alteration Residential · Issued$6,000Romain Strecker

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

Developer details
Permit #
cambridge_aa_1182259
Canonical ID
309:cambridge_aa_1182259
Source permit ID
cambridge_aa_1182259
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