Permit Record

Alteration Commercial

551 Boylston St, Boston, MA 02116

ClassificationLong Form/Alteration Permit - CHGOCCCommercial Alteration
Reliable value$800,000
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Ilia Diamandis
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
501299000
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
Not in source
Building subtype
Comm
Geocode & dates
Coordinates
42.3507, -71.0760
Geocode confidence
100%
Geocode source
Not in source
Issued
May 29, 2026
Applied
Not in source
Work class
Commercial
Description
Source description

Change of Occupancy from a restaurant to a Cannabis Dispensary. Interior and exterior renovation of existing tenant space and building facade. Interior renovations for mercantile &; business use with new commercial finishes throughout. Exterior storefront renovation included.

Status
Current status
issued
Source status
Open
Expired
Nov 29, 2026
Provenance
First seen (no changes since)
Jun 24, 2026 · 23:16 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

11 permits at this parcel (parcel 501299000) · Feb 19, 2010 – May 29, 2026

  1. May 29, 2026This permitAlteration Commercial · Issued$800,000
  2. Dec 11, 2025SF1804223Demolition · Issued$15,000
  3. Nov 29, 2021SF1254467Roofing · Finaled$62,400
  4. Aug 13, 2015COO473881Other · Finaled$340,000
  5. May 20, 2015COO474823Other · Finaled$340,000
  6. Apr 2, 2015E458719MEP Electrical · Issued$32,000
  7. Mar 30, 2015PL458095MEP Plumbing · Finaled$16,000
  8. Feb 27, 2015ALT442769Sign · Issued$5,660
  9. Feb 23, 2015ALT431416Alteration Commercial · Issued$340,000
  10. Aug 24, 2012ALT52642Alteration Commercial · Issued$100,000
  11. Feb 19, 2010ALT14624Alteration Commercial · Finaled$5,000

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

Developer details
Permit #
ALT1400229
Canonical ID
69:ALT1400229
Source permit ID
ALT1400229
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