Permit Record

Alteration Commercial

429 M St NW, Washington, DC 20001

ClassificationAlteration
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Mark Shaffery
Owner
Farnsworth, Marlin G
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
0513-0804
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
SWIMMING POOL
Geocode & dates
Coordinates
38.9059, -77.0172
Geocode confidence
95%
Geocode source
Not in source
Issued
Mar 27, 2026
Applied
Not in source
Work class
Residential
Description
Source description

Historic District Construct inground concrete 300 SF swimming pool and 50 SF raised spa with paver patio and fence to code.

Status
Current status
issued
Source status
PERMIT ISSUED
Provenance
First seen by PermitCore
May 6, 2026 · 21:09 UTC
Last seen
Aug 28, 2026 · 20:52 UTC
Last changed
Aug 19, 2026 · 09:44 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

4 permits at this parcel (parcel 0513-0804) · Feb 28, 2020 – Mar 27, 2026

  1. Mar 27, 2026This permitAlteration Commercial · Issued
  2. Aug 28, 2025E2512921MEP Electrical · Issued
  3. Jan 22, 2024P2403105MEP Plumbing · Finaled
  4. Feb 28, 2020P2004314MEP Plumbing · Expired

Full permit history at this parcel · as of Aug 20, 2026.

Developer details
Permit #
SP2500047
Canonical ID
243:SP2500047
Source permit ID
SP2500047
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