Permit Record

Addition Residential

4540 28th St NW, Washington, DC 20008

ClassificationAddition
Reliable valueNot in source
ContractorNot in source
Permit record
Parties
Contractor
Not in source
Applicant
Sengers, Maarten W
Owner
Sengers, Maarten W
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
2251-0026
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
38.9491, -77.0554
Geocode confidence
95%
Geocode source
Not in source
Issued
Sep 18, 2023
Applied
Not in source
Work class
Residential
Description
Source description

Add approx. 210 sq. ft. barrel roof dormer addition to attic which will become a new bedroom 3/study. Finish remaining attic space to include a walk in closet (WIC)for bedroom 3, open ceiling above living room to create a half cathedral ceiling into attic space. Spray foam attic so that it will be a conditioned space with mini split HVAC. On main floor, replace existing bathroom and bedroom 1 closet area to create two bathrooms, create new WICs for bedroom 1 from existing study/den space, and change existing study/den space to a new bedroom 2/gym.

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

12 permits at this parcel (parcel 2251-0026) · Jun 14, 2012 – May 16, 2024

  1. May 16, 2024E2407907MEP Electrical · Issued
  2. May 16, 2024P2406678MEP Plumbing · Issued
  3. Sep 18, 2023This permitAddition Residential · Issued
  4. Oct 28, 2021RW2200013Alteration Commercial · Finaled
  5. Jun 20, 2017P1706801MEP Plumbing · Finaled
  6. Jun 19, 2017B1709706Alteration Commercial · Issued
  7. Jun 9, 2017E1707247MEP Electrical · Finaled
  8. Jun 7, 2017P1706480MEP Plumbing · Finaled
  9. Apr 28, 2017B1707185Alteration Commercial · Finaled
  10. Apr 8, 2013P1304100MEP Plumbing · Expired
  11. Mar 11, 2013E1303633MEP Electrical · Issued
  12. Jun 14, 2012PC43421221Other · Issued

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

Developer details
Permit #
B2308783
Canonical ID
243:B2308783
Source permit ID
B2308783
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