Permit Record

MEP Mechanical HVAC

6515 6th St NW, Washington, DC 20012

ClassificationSUPPLEMENTAL - MECHANICALResidential MEP
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
John Denis Ruff
Owner
Louise P Van Buren
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
3195-0821
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
38.9692, -77.0209
Geocode confidence
95%
Geocode source
Not in source
Issued
Apr 26, 2012
Applied
Not in source
Work class
Residential
Status
Current status
expired
Source status
EXPIRED
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

7 permits at this parcel (parcel 3195-0821) · Aug 23, 2010 – Apr 26, 2012

  1. Apr 26, 2012This permitMEP Mechanical HVAC · Expired
  2. Jan 10, 2012B1203379Addition Residential · Issued
  3. Nov 10, 2010E1101038MEP Electrical · Expired
  4. Nov 9, 2010P1100861MEP Plumbing · Expired
  5. Nov 8, 2010B1009879Addition Residential · Expired
  6. Aug 23, 2010D1000303Demolition · Expired
  7. Aug 23, 2010R1000141Alteration Commercial · Expired

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

Developer details
Permit #
M1201631
Canonical ID
243:M1201631
Source permit ID
M1201631
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