Permit Record

Alteration Commercial

2409 1st St NW, Washington, DC 20001

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Null Null; Louderback, Matthew L
Owner
Louderback, Matthew 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
3127-0048
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
38.9217, -77.0118
Geocode confidence
95%
Geocode source
Not in source
Issued
Jan 21, 2026
Applied
Not in source
Work class
Residential
Description
Source description

HISTORIC Removing exiting front mansard slate roof. Inspect and replace decking as needed. Install new ice and water membrane, flashing, and counter flashing. Put down black aluminum flashing and counter flashing. Install new black never fading slate of similar size to existing.

Status
Current status
issued
Source status
PERMIT ISSUED
Provenance
First seen by PermitCore
May 6, 2026 · 21:08 UTC
Last seen
Aug 28, 2026 · 20:51 UTC
Last changed
Aug 19, 2026 · 09:43 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

3 permits at this parcel (parcel 3127-0048) · Oct 8, 2010 – Jan 21, 2026

  1. Jan 21, 2026This permitAlteration Commercial · Issued
  2. Mar 31, 2021P2104721MEP Plumbing · Issued
  3. Oct 8, 2010B1005868Alteration Commercial · Expired

Full permit history at this parcel · as of Aug 20, 2026.

Developer details
Permit #
B2602299
Canonical ID
243:B2602299
Source permit ID
B2602299
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