Permit Record

MEP Mechanical HVAC

3900 Windom Pl NW, Washington, DC 20016

ClassificationSUPPLEMENTAL - MECHANICALResidential MEP
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Andrew P Carayiannis
Owner
Jacob R Osborn
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
1784-0009
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
MECHANICAL
Geocode & dates
Coordinates
38.9453, -77.0773
Geocode confidence
95%
Geocode source
Not in source
Issued
Sep 26, 2014
Applied
Not in source
Work class
Residential
Status
Current status
finaled
Source status
COMPLETED
Provenance
First seen (no changes since)
May 19, 2026 · 00:06 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

6 permits at this parcel (parcel 1784-0009) · Jun 26, 2014 – Dec 6, 2014

  1. Dec 6, 2014PC38574402Other · Issued
  2. Oct 31, 2014B1411010Alteration Commercial · Issued
  3. Sep 26, 2014This permitMEP Mechanical HVAC · Finaled
  4. Sep 23, 2014E1409346MEP Electrical · Finaled
  5. Sep 11, 2014P1408520MEP Plumbing · Finaled
  6. Jun 26, 2014B1409027Alteration Commercial · Finaled

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

Developer details
Permit #
M1403377
Canonical ID
243:M1403377
Source permit ID
M1403377
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