Permit Record

Addition Residential

4700 Linnean Ave NW, Washington, DC 20008

ClassificationAddition
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Helen Kwon
Owner
Elizabeth C Blase
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
2262-0003
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
ADDITION ALTERATION REPAIR
Geocode & dates
Coordinates
38.9509, -77.0587
Geocode confidence
95%
Geocode source
Not in source
Issued
Aug 12, 2020
Applied
Not in source
Work class
Residential
Description
Source description

1. CONSTRUCT A NEW DORMER FOR THE ATTIC FLOOR. 2. CONSTRUCT A NEW PREFABRICATED METAL BALCONY FOR THE OFFICE.

Status
Current status
issued
Source status
PERMIT ISSUED
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 2262-0003) · Aug 12, 2020 – Jan 22, 2025

  1. Jan 22, 2025E2504376MEP Electrical · Issued
  2. Jan 16, 2025SOL2501307Solar PV · Issued
  3. Sep 17, 2024F2400893Fence Wall · Expired
  4. Jun 9, 2022B2207931Addition Residential · Finaled
  5. Aug 12, 2020This permitAddition Residential · Issued

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

Developer details
Permit #
B2009327
Canonical ID
243:B2009327
Source permit ID
B2009327
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