Permit Record

MEP Mechanical HVAC

406 N St NW 20001

ClassificationHVAC / Mechanical
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Not in source
Owner
Arthur S Brown Jr
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
0513-0087
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
MECHANICAL
Geocode & dates
Coordinates
38.9071, -77.0165
Geocode confidence
95%
Geocode source
Not in source
Issued
Nov 8, 2018
Applied
Not in source
Work class
Not in source
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

5 permits at this parcel (parcel 0513-0087) · Oct 5, 2018 – Mar 18, 2019

  1. Mar 18, 2019B1906253Alteration Commercial · Expired
  2. Nov 8, 2018This permitMEP Mechanical HVAC · Expired
  3. Nov 6, 2018E1901254MEP Electrical · Issued
  4. Oct 18, 2018B1900775Alteration Commercial · Expired
  5. Oct 5, 2018B1900276Alteration Commercial · Expired

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

Developer details
Permit #
M1900475
Canonical ID
243:M1900475
Source permit ID
M1900475
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