Permit Record

Alteration Residential

14 Leonard Ave, Cambridge, MA 02139

ClassificationBuilding: Alteration and AdditionResidential Alteration
Reliable value$4,000
ContractorRock Built
Permit record
Parties
Contractor
Rock Built
Applicant
Andrew Radar
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
140-51
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
42.3756, -71.1057
Geocode confidence
100%
Geocode source
Not in source
Issued
Sep 26, 2022
Applied
Sep 23, 2022
Work class
Residential
Description
Source description

insulate exterior walls with blown in cellulose

Status
Current status
issued
Source status
Active
Provenance
First seen by PermitCore
May 18, 2026 · 16:17 UTC
Last seen
Aug 6, 2026 · 11:30 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

4 permits at this parcel (parcel 140-51) · Dec 21, 2020 – Sep 26, 2022

  1. Sep 26, 2022This permitAlteration Residential · Issued$4,000Rock Built
  2. Feb 24, 2022cambridge_aa_149313Alteration Residential · Issued$15,500Mv Companies
  3. Aug 23, 2021cambridge_aa_130237Alteration Residential · Issued$13,725A&m General Contracting
  4. Dec 21, 2020cambridge_aa_100632Alteration Residential · Finaled$150,000Mv Companies

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

Other permits by Rock Built

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Developer details
Permit #
cambridge_aa_196085
Canonical ID
309:cambridge_aa_196085
Source permit ID
cambridge_aa_196085
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