Permit Record

Alteration Commercial

4120 18th St NW, Washington, DC 20011

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Null Null; Michelle Clancy
Owner
Gierhart, Cynthia
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
2638-0014
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
38.9415, -77.0415
Geocode confidence
95%
Geocode source
Not in source
Issued
Feb 12, 2025
Applied
Not in source
Work class
Residential
Description
Source description

REMOVE EXISTING REAR PORCH AND CONSTRUCT 12'X12' SCREENED PORCH W/LANDING & STAIRS

Status
Current status
finaled
Source status
COMPLETED
Provenance
First seen (no changes since)
May 19, 2026 · 00:17 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

7 permits at this parcel (parcel 2638-0014) · Jul 25, 2012 – May 8, 2025

  1. May 8, 2025EH2503091Other · Issued
  2. Feb 12, 2025This permitAlteration Commercial · Finaled
  3. Jan 22, 2025F2500211Fence Wall · Finaled
  4. Oct 11, 2022P2300252MEP Plumbing · Finaled
  5. Aug 12, 2022E2210399MEP Electrical · Issued
  6. Jul 9, 2013E1306637MEP Electrical · Finaled
  7. Jul 25, 2012B1205412Alteration Commercial · Finaled

Full permit history at this parcel · as of Aug 11, 2026.

Developer details
Permit #
B2502118
Canonical ID
243:B2502118
Source permit ID
B2502118
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