Permit Record

Alteration Commercial

450 Memorial Dr, Cambridge, MA 02139

ClassificationBuilding: Alteration and AdditionCommercial Alteration
Reliable value$374,445
ContractorBerkeley Building Company →
Permit record
Parties
Contractor
Berkeley Building Company
Applicant
Emil Frei
Owner
Not in source
Architect
David R Prengaman
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
12,830 sq ft
Parcel & enrichment
Parcel APN
60-6
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
42.3554, -71.0995
Geocode confidence
100%
Geocode source
Not in source
Issued
Apr 29, 2021
Applied
Apr 9, 2021
Work class
Commercial
Description
Source description

Renovation of first floor space to accommodate new offices

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 60-6) · May 16, 2019 – Apr 29, 2021

  1. Apr 29, 2021This permitAlteration Commercial · Issued$374,445Berkeley Building Company
  2. May 16, 2019cambridge_aa_45952Alteration Commercial · Issued$428,325Acella Construction Corporation

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

Other permits by Berkeley Building Company

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Developer details
Permit #
cambridge_aa_115268
Canonical ID
309:cambridge_aa_115268
Source permit ID
cambridge_aa_115268
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