Permit Record

Alteration Commercial

1779 Massachusetts Ave NW, Washington, DC 20036

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Luis Guillen; Na
Owner
Carnegie Endowment For Intl Peace
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
0157-0866
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
ALTERATION AND REPAIR
Geocode & dates
Coordinates
38.9093, -77.0410
Geocode confidence
95%
Geocode source
Not in source
Issued
Aug 8, 2023
Applied
Not in source
Work class
Residential
Description
Source description

Historic Districts: Dupont Circle Historic District Massachusetts Avenue Historic District CARNEGIE ENDOWMENT FOR INTERNATIONAL PEACE -CEIP-. PROPOSED WORK CONSIST OF INTERIOR RENOVATION, FINISHES AND DEMOLITION ON PORTION OF THE SIX FLOOR TO AN EXISTING BUILDING INCLUDING CEIP EXPANTION, ARCHITECTURAL, ELECTRICAL, FIRE ALARM, AND MECHANICAL, AS PER PLANS.

Status
Current status
issued
Source status
PERMIT ISSUED
Provenance
First seen (no changes since)
May 19, 2026 · 00:15 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

Permits grouped by tax lot (parcel 0157-0866) — same parcel, same project.

No other permits at this parcel in the indexed window.
Developer details
Permit #
B2305753
Canonical ID
243:B2305753
Source permit ID
B2305753
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