Permit Record

MEP Plumbing

400 Massachusetts Ave NW 407, Washington, DC 20001

ClassificationSUPPLEMENTAL - PLUMBING AND GASCommercial MEP
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Not in source
Owner
Yong, Pierre L
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
0517-2509
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
PLUMBING AND GAS
Geocode & dates
Coordinates
38.9001, -77.0169
Geocode confidence
95%
Geocode source
Not in source
Issued
Aug 12, 2021
Applied
Not in source
Work class
Commercial
Status
Current status
finaled
Source status
COMPLETED
Provenance
First seen (no changes since)
May 19, 2026 · 00:13 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 0517-2509) · Aug 9, 2021 – Aug 12, 2021

  1. Aug 12, 2021This permitMEP Plumbing · Finaled
  2. Aug 12, 2021E2109717MEP Electrical · Finaled
  3. Aug 10, 2021P2107951MEP Plumbing · Issued
  4. Aug 9, 2021B2109926Alteration Commercial · Finaled

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

Developer details
Permit #
P2108011
Canonical ID
243:P2108011
Source permit ID
P2108011
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