Permit Record

Alteration Commercial

600 21st St NW, Washington, DC 20052

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
John Patrick Chalk
Owner
George Washington University
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
0080-0052
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
38.8976, -77.0469
Geocode confidence
95%
Geocode source
Not in source
Issued
Feb 6, 2018
Applied
Not in source
Work class
Residential
Description
Source description

Existing office to be divided into two separate smaller offices. new GWB wall, minor demolition, new ceiling, new lighting, new HVAc diffusers, new electrical outlets. 225 SF.

Status
Current status
expired
Source status
EXPIRED
Provenance
First seen (no changes since)
May 19, 2026 · 00:10 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 0080-0052) · Jul 20, 2013 – Feb 6, 2018

  1. Feb 6, 2018This permitAlteration Commercial · Expired
  2. Jul 20, 2013PC61512446Other · Issued

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

Developer details
Permit #
B1802296
Canonical ID
243:B1802296
Source permit ID
B1802296
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