Permit Record

Alteration Residential

922 Massachusetts Ave, Cambridge, MA 02139

ClassificationBuilding: Alteration and AdditionMultifamily Alteration
Reliable value$5,825,000
ContractorErivaldo Valentim
Permit record
Parties
Contractor
Erivaldo Valentim
Applicant
Yi Ming Chen
Owner
Not in source
Architect
Kripper Architecture Studio INC - Amir Kripper
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
24,000 sq ft
Parcel & enrichment
Parcel APN
120-49
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
Multi Family (3 or more dwelling units)
Geocode & dates
Coordinates
42.3684, -71.1090
Geocode confidence
100%
Geocode source
Not in source
Issued
Oct 28, 2020
Applied
Jun 29, 2020
Work class
Residential
Description
Source description

Full interior renovation, exterior updates, and roof work

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 120-49) · Feb 11, 2020 – Oct 28, 2020

  1. Oct 28, 2020This permitAlteration Residential · Issued$5,825,000Erivaldo Valentim
  2. Feb 11, 2020cambridge_aa_66102Alteration Residential · Finaled$297,200The Aulson Company

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

Other permits by Erivaldo Valentim

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Developer details
Permit #
cambridge_aa_79102
Canonical ID
309:cambridge_aa_79102
Source permit ID
cambridge_aa_79102
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