Permit Record

Alteration Commercial

4508 28th St NW, Washington, DC 20008

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Yiying Qiu
Owner
Peter Andrew Carolan Trustee
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
2251-0030
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
38.9487, -77.0547
Geocode confidence
95%
Geocode source
Not in source
Issued
Oct 20, 2025
Applied
Not in source
Work class
Residential
Description
Source description

New A frame roof above family room to align with existing roof line. New clad windows and French door at first floor.

Status
Current status
issued
Source status
PERMIT ISSUED
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

12 permits at this parcel (parcel 2251-0030) · Jul 14, 2015 – Apr 14, 2026

  1. Apr 14, 2026E2607637MEP Electrical · Issued
  2. Oct 20, 2025This permitAlteration Commercial · Issued
  3. Apr 26, 2024E2407236MEP Electrical · Issued
  4. Apr 19, 2024P2405889MEP Plumbing · Issued
  5. Feb 20, 2024B2402251Alteration Commercial · Issued
  6. Nov 3, 2017E1801050MEP Electrical · Finaled
  7. Nov 3, 2017P1800857MEP Plumbing · Issued
  8. Feb 15, 2017B1704743Alteration Commercial · Finaled
  9. Feb 8, 2017P1703472MEP Plumbing · Issued
  10. Nov 22, 2016E89549849MEP Electrical · Issued
  11. Oct 13, 2016B1700433Alteration Commercial · Issued
  12. Jul 14, 2015PC99242976Other · Issued

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

Developer details
Permit #
B2509520
Canonical ID
243:B2509520
Source permit ID
B2509520
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