Permit Record

Alteration Commercial

644 South Carolina Ave SE, Washington, DC 20003

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
John Mazura
Owner
Brenda Thornton
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
0875-0033
Climate zone (IECC)
4A
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
ALTERATION AND REPAIR
Geocode & dates
Coordinates
38.8839, -76.9969
Geocode confidence
95%
Geocode source
Not in source
Issued
Dec 20, 2017
Applied
Not in source
Work class
Residential
Description
Source description

INSTALLING NEW GAS BOILER RUNNING NEW GAS LINE FROM EXISTING GAS METER TO NEW BOILER

Status
Current status
expired
Source status
EXPIRED
Provenance
First seen (no changes since)
May 19, 2026 · 00:09 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

7 permits at this parcel (parcel 0875-0033) · May 10, 2017 – Dec 4, 2025

  1. Dec 4, 2025P2602232MEP Plumbing · Issued
  2. Oct 16, 2025F2500778Fence Wall · Issued
  3. Aug 10, 2020B2009524Alteration Commercial · Expired
  4. Apr 9, 2020B2006750Alteration Commercial · Finaled
  5. Dec 20, 2017P1802265MEP Plumbing · Issued
  6. Dec 20, 2017This permitAlteration Commercial · Expired
  7. May 10, 2017B1708179Alteration Commercial · Issued

Full permit history at this parcel · as of Aug 11, 2026.

Developer details
Permit #
B1802295
Canonical ID
243:B1802295
Source permit ID
B1802295
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