Permit Record

MEP Mechanical HVAC

436 20th St NE, Washington, DC 20002

ClassificationSUPPLEMENTAL - MECHANICALResidential MEP
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
James D Perkins
Owner
Froilan Mamani
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
4549-0092
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
38.8957, -76.9764
Geocode confidence
95%
Geocode source
Not in source
Issued
Oct 23, 2012
Applied
Not in source
Work class
Residential
Status
Current status
finaled
Source status
COMPLETED
Provenance
First seen (no changes since)
May 19, 2026 · 00:01 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 4549-0092) · Sep 28, 2012 – Oct 23, 2012

  1. Oct 23, 2012This permitMEP Mechanical HVAC · Finaled
  2. Oct 18, 2012P1300436MEP Plumbing · Finaled
  3. Oct 17, 2012E1300469MEP Electrical · Finaled
  4. Sep 28, 2012B1215125Alteration Commercial · Finaled

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

Developer details
Permit #
M1300166
Canonical ID
243:M1300166
Source permit ID
M1300166
Browse Washington, DC permits in the Market Explorer →Pull this permit via /v1/permits →