Permit Record

Alteration Commercial

3525 Alton Pl NW, Washington, DC 20008

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Not in source
Owner
Marsha K Silverberg
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
1970-0039
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
RETAINING WALL
Geocode & dates
Coordinates
38.9473, -77.0686
Geocode confidence
95%
Geocode source
Not in source
Issued
Aug 30, 2011
Applied
Not in source
Work class
Residential
Description
Source description

Revise permit # RW1100122 to change the height of the fence to 7 feet on the retaining wall.

Status
Current status
issued
Source status
PERMIT ISSUED
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

6 permits at this parcel (parcel 1970-0039) · Feb 15, 2011 – Aug 30, 2011

  1. Aug 30, 2011This permitAlteration Commercial · Issued
  2. Aug 16, 2011RW1100122Alteration Commercial · Issued
  3. Apr 13, 2011E1104934MEP Electrical · Finaled
  4. Apr 8, 2011M1101269MEP Mechanical HVAC · Finaled
  5. Apr 6, 2011P1104203MEP Plumbing · Finaled
  6. Feb 15, 2011B1101886Alteration Commercial · Finaled

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

Developer details
Permit #
RW1100147
Canonical ID
243:RW1100147
Source permit ID
RW1100147
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