Permit Record

Alteration Residential

218 Hamilton St, Cambridge, MA 02139

ClassificationBuilding: Alteration and AdditionResidential Alteration
Reliable value$933,761
ContractorSeaver Construction
Permit record
Parties
Contractor
Seaver Construction
Applicant
George E. Gallagher, Iii
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
102-134
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
42.3601, -71.1093
Geocode confidence
100%
Geocode source
Not in source
Issued
Sep 30, 2024
Applied
Jul 31, 2024
Work class
Residential
Description
Source description

A second story addition; extension and raising of the main roof; new dormers; finishing of the third floor; interior remodeling of the first and second floors, and extention of rear deck.

Status
Current status
finaled
Source status
Complete
Finaled
Sep 30, 2024
Provenance
First seen by PermitCore
May 18, 2026 · 16:17 UTC
Last seen
Aug 6, 2026 · 11:31 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 102-134) · Jul 1, 2019 – Sep 30, 2024

  1. Sep 30, 2024This permitAlteration Residential · Finaled$933,761Seaver Construction
  2. Jul 1, 2019cambridge_aa_50266Alteration Residential · Finaled$13,400Ian Kenny

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

Other permits by Seaver Construction

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Developer details
Permit #
cambridge_aa_282918
Canonical ID
309:cambridge_aa_282918
Source permit ID
cambridge_aa_282918
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