Permit Record

Addition Residential

3247 Patterson St NW, Washington, DC 20015

ClassificationAddition
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
David Linton; Ross Koenig; Henry Chuang
Owner
Stanton Patterson LLC
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
2021-0026
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
ADDITION ALTERATION REPAIR
Geocode & dates
Coordinates
38.9679, -77.0658
Geocode confidence
95%
Geocode source
Not in source
Issued
Dec 5, 2019
Applied
Not in source
Work class
Residential
Description
Source description

RENOVATION AND REAR ADDITION WITH BASEMENT TO EXISTING 2-STORY SINGLE FAMILY HOME WITH BASEMENT.

Status
Current status
finaled
Source status
COMPLETED
Provenance
First seen (no changes since)
May 19, 2026 · 00:11 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 2021-0026) · Feb 12, 2014 – Nov 6, 2023

  1. Nov 6, 2023P2401079MEP Plumbing · Issued
  2. Oct 19, 2023P2400521MEP Plumbing · Issued
  3. Oct 18, 2023E2400644MEP Electrical · Issued
  4. Aug 30, 2023SP2300055Alteration Commercial · Issued
  5. Nov 2, 2020B2100913Alteration Commercial · Expired
  6. Apr 30, 2020F2000381Fence Wall · Expired
  7. Apr 29, 2020E2007196MEP Electrical · Finaled
  8. Apr 7, 2020M2002083MEP Mechanical HVAC · Finaled
  9. Mar 3, 2020B2005806Alteration Commercial · Issued
  10. Feb 18, 2020P2003994MEP Plumbing · Finaled
  11. Dec 5, 2019This permitAddition Residential · Finaled
  12. Feb 12, 2014PC64202155Other · Finaled

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

Developer details
Permit #
B1914713
Canonical ID
243:B1914713
Source permit ID
B1914713
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