Permit Record

Alteration Commercial

120 Vassar St, Cambridge, MA 02139

ClassificationBuilding: Alteration and AdditionCommercial Alteration
Reliable value$665,736
ContractorDesign Group
Permit record
Parties
Contractor
Design Group
Applicant
Marcus Allen
Owner
Not in source
Architect
Brian V Gilman
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
37,500 sq ft
Parcel & enrichment
Parcel APN
57-171
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
B
Building subtype
Commercial / Mixed Use
Geocode & dates
Coordinates
42.3588, -71.0963
Geocode confidence
100%
Geocode source
Not in source
Issued
Jul 14, 2020
Applied
Jun 29, 2020
Work class
Commercial
Description
Source description

MIT Hockey Arena  - Building W34 - Johnson Ice Rink: Convert existing refrigeration system for Johnson Hockey Ice Rink from NH3 (Ammonia) system to R507 freon system.MIT is concerned with the risk of an ammonia leak, and the potential impact given the proximity to students.Permit approval by July 15 is requested to meet the 3 month duration required to complete this project in order to have the new system operational for the students to use in early October.

Status
Current status
issued
Source status
Active
Provenance
First seen by PermitCore
May 18, 2026 · 16:16 UTC
Last seen
Aug 6, 2026 · 11:30 UTC
Last changed
May 18, 2026 · 16:16 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 57-171) · Mar 4, 2019 – Jul 14, 2020

  1. Jul 14, 2020This permitAlteration Commercial · Issued$665,736Design Group
  2. Mar 4, 2019cambridge_aa_29722Alteration Commercial · Issued$25,000East Coast Communications

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

Other permits by Design Group

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Developer details
Permit #
cambridge_aa_78899
Canonical ID
309:cambridge_aa_78899
Source permit ID
cambridge_aa_78899
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