Permit Record

Alteration Commercial

629 Q St NW, Washington, DC 20001

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Carlos E Mardesich; Na
Owner
Mark A Silberer
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
0444-0805
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
38.9113, -77.0212
Geocode confidence
95%
Geocode source
Not in source
Issued
Oct 23, 2020
Applied
Not in source
Work class
Residential
Description
Source description

Revision to permit # B2011575 - REMOVE TWO EXISTING 2"X10" DECAYING FLOOR JOISTS AT 2ND FLOOR BATHROOM & REPLACE WITH IN KIND JOISTS. - REPAIR EXISTING PLUMBING NOTCHES/ CUT OUTS OF EXISTING JOISTS .

Status
Current status
expired
Source status
EXPIRED
Provenance
First seen (no changes since)
May 19, 2026 · 00:12 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

8 permits at this parcel (parcel 0444-0805) · Oct 5, 2017 – Oct 23, 2020

  1. Oct 23, 2020This permitAlteration Commercial · Expired
  2. Oct 14, 2020P2100381MEP Plumbing · Issued
  3. Oct 7, 2020P2100199MEP Plumbing · Finaled
  4. Oct 1, 2020E2100033MEP Electrical · Finaled
  5. Sep 4, 2020B2011575Alteration Commercial · Finaled
  6. Jul 23, 2019B1912008Alteration Commercial · Finaled
  7. Jan 18, 2019P1903038MEP Plumbing · Finaled
  8. Oct 5, 2017B1800190Alteration Commercial · Issued

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

Developer details
Permit #
B2100678
Canonical ID
243:B2100678
Source permit ID
B2100678
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