Permit Record

Alteration Commercial

521 10th St SE, Washington, DC 20003

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Na Na; Paul Killmer
Owner
Mann, Alexander J
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
0949-0825
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
38.8820, -76.9929
Geocode confidence
95%
Geocode source
Not in source
Issued
Apr 22, 2026
Applied
Not in source
Work class
Residential
Description
Source description

Tuckpoint side neighboring [South facing] fa?ade using lime-based mortar

Status
Current status
issued
Source status
PERMIT ISSUED
Provenance
First seen by PermitCore
May 6, 2026 · 21:09 UTC
Last seen
Aug 28, 2026 · 20:52 UTC
Last changed
Aug 19, 2026 · 09:44 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 0949-0825) · Jun 18, 2009 – Apr 22, 2026

  1. Apr 22, 2026This permitAlteration Commercial · Issued
  2. Sep 1, 2016B1612627Alteration Commercial · Issued
  3. Sep 17, 2014B1412107Alteration Commercial · Issued
  4. Jun 18, 2009B0906659Alteration Commercial · Issued

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

Developer details
Permit #
B2605089
Canonical ID
243:B2605089
Source permit ID
B2605089
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