Permit Record

MEP Mechanical HVAC

311 34th St NE, Washington, DC 20019

ClassificationSUPPLEMENTAL - MECHANICALResidential MEP
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Not in source
Owner
Deborah L Patterson
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
5018-0056
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
38.8940, -76.9573
Geocode confidence
95%
Geocode source
Not in source
Issued
Nov 24, 2020
Applied
Not in source
Work class
Residential
Status
Current status
expired
Source status
EXPIRED
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

5 permits at this parcel (parcel 5018-0056) · Jun 29, 2020 – Nov 24, 2020

  1. Nov 24, 2020This permitMEP Mechanical HVAC · Expired
  2. Nov 12, 2020E2101450MEP Electrical · Issued
  3. Aug 14, 2020B2009690Alteration Commercial · Issued
  4. Jul 3, 2020P2007164MEP Plumbing · Issued
  5. Jun 29, 2020BP2003395Other · Expired

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

Developer details
Permit #
M2100574
Canonical ID
243:M2100574
Source permit ID
M2100574
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