Permit Record

Alteration Commercial

800 Technology Sq, Cambridge, MA 02142

ClassificationBuilding: Alteration and AdditionCommercial Alteration
Reliable value$937,550
Permit record
Parties
Applicant
Joseph Ambrose
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
63,600 sq ft
Parcel & enrichment
Parcel APN
43A-19
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
42.3645, -71.0915
Geocode confidence
100%
Geocode source
Not in source
Issued
Jan 5, 2026
Applied
Jul 28, 2025
Work class
Commercial
Description
Source description

We will be completing traffic topping repairs to the ground and 2nd floor of the parking garage @ 800 Technology Sq

Status
Current status
issued
Source status
Active
Provenance
First seen by PermitCore
May 18, 2026 · 16:17 UTC
Last seen
Aug 6, 2026 · 11:31 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 43A-19) · Aug 16, 2021Jan 5, 2026

  1. Jan 5, 2026This permitAlteration Commercial · Issued$937,550Acme Waterproofing
  2. Aug 14, 2024cambridge_aa_280752Alteration Commercial · Issued$224,300Acme Waterproofing
  3. Jul 29, 2024cambridge_aa_280760Alteration Commercial · Finaled$561,000Debora Juliao
  4. Aug 16, 2021cambridge_aa_136853Alteration Commercial · Issued$762,600Acme Waterproofing

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

Other permits by Acme Waterproofing

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Developer details
Permit #
cambridge_aa_1176233
Canonical ID
309:cambridge_aa_1176233
Source permit ID
cambridge_aa_1176233
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