Permit Record

Alteration Commercial

400 U St NW, Washington, DC 20001

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Gay W Hardwick
Owner
Jordan Knowles
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
3090-0010
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
38.9166, -77.0176
Geocode confidence
95%
Geocode source
Not in source
Issued
May 15, 2018
Applied
Not in source
Work class
Residential
Description
Source description

No work being done. Permit application is to obtain a Certificate of Occupancy for the cellar apartment.

Status
Current status
issued
Source status
PERMIT ISSUED
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

13 permits at this parcel (parcel 3090-0010) · Dec 10, 2009 – Jun 3, 2022

  1. Jun 3, 2022B2207498Alteration Commercial · Expired
  2. Jun 30, 2020SD2000053Alteration Commercial · Expired
  3. Aug 31, 2018B1813731Alteration Commercial · Finaled
  4. May 15, 2018This permitAlteration Commercial · Issued
  5. Sep 8, 2014B1411715Alteration Commercial · Issued
  6. Feb 4, 2014B1401630Alteration Commercial · Expired
  7. Jan 28, 2014B1401657Alteration Commercial · Issued
  8. Feb 1, 2013B1303611Alteration Commercial · Issued
  9. Jan 11, 2012HO1200179Other · Finaled
  10. Jun 28, 2010B1007482Alteration Commercial · Expired
  11. Mar 23, 2010B1004270Alteration Commercial · Expired
  12. Mar 22, 2010E1004013MEP Electrical · Issued
  13. Dec 10, 2009B1001883Alteration Commercial · Expired

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

Developer details
Permit #
B1804800
Canonical ID
243:B1804800
Source permit ID
B1804800
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