All permits

1234 MASSACHUSETTS AVE NW

WASHINGTON, DC 20005 · DC — Ward 2

Permit activity

Jan 2026 → Jun 2026
  1. Building permit issuedJan 22
  2. Building permit issuedFeb 2
  3. Building permit issuedFeb 13
  4. Building permit issuedFeb 21
  5. Building permit issuedFeb 21
  6. Building permit issuedFeb 21
  7. Building permit issuedApr 2
  8. Building permit issuedApr 10
  9. Building permit issuedJun 8
DC-EA2601174
PERMIT ISSUED

Building permitelevator - alteration

MODERNIZATION: Three (3) passenger elevators - controller replacement, new fixtures

Applicant: N / A · Owner: MASS HOUSE LLC

Issued Jun 8, 2026
DC-E2607503
PERMIT ISSUED

Building permitelectrical

Owner: MASS HOUSE LLC

Issued Apr 10, 2026
DC-UP2600041
PERMIT ISSUED

Building permitboiler

Owner: MASS HOUSE LLC

Issued Apr 2, 2026
DC-UP2600037
PERMIT ISSUED

Building permitboiler

Owner: MASS HOUSE LLC

Issued Feb 21, 2026
DC-FB2600036
PERMIT ISSUED

Building permitboiler

Owner: MASS HOUSE LLC

Issued Feb 21, 2026
DC-P2604779
PERMIT ISSUED

Building permitplumbing and gas

Owner: MASS HOUSE LLC

Issued Feb 21, 2026
DC-B2602152
PERMIT ISSUED

Building permitalteration and repair

Replace boilers in existing penthouse

Applicant: CHRIS WING · Owner: MASS HOUSE LLC

Issued Feb 13, 2026
DC-P2604158
PERMIT ISSUED

Building permitplumbing and gas

Owner: MASS HOUSE LLC

Issued Feb 2, 2026
DC-B2510324
PERMIT ISSUED

Building permitalteration and repair

***WALK-THRU*** INTERIOR WORK ONLY, REPAIR/REPLACE THE FOLLOWING: Replace switch disconnect for elevator mainline power, Repair fire rated swing doors, frame, and hardware, Change the electrical equipment in machinery space and pit, upgrade light fixtures, change ventilation in comptroller and machinery room, stand-alone, supervisory control (ESCU) FACP, Provide emergency power to light fixtures in elevator spaces, Repair pit ladder, Replace 9000 GPH pit sump pump. MEP on existing equipment ONLY ***WALK-THRU***

Applicant: INSPECTOR STEVENS · Owner: MASS HOUSE LLC

Issued Jan 22, 2026

Property record

SSL 0283 0826
Lot
25,805 sq ft
Assessed
$49,712,380
Land / improvements
$12,420,980 / $37,291,400
Last sale
Jan 6, 1999

Published by the District as assessment data, separately from the permit record above, and current as of the District’s own assessment cycle rather than today. An assessment can lag construction by a cycle, so a property with a recently issued permit may still be assessed as it was before the work. Owner details are published by the jurisdiction but are deliberately not shown here.

What this page cannot show

These are the permits published by the jurisdictions listed above. A project usually depends on approvals from other agencies that publish nothing machine-readable — a forest conservation exemption, a well completion report, a sediment control or grading plan, a utility connection, a homeowners’ association sign-off. Their absence here is not evidence they were not required, and the gaps between the dates above are usually where they happened. Rows labelled “Issued” are ISSUED permits — Washington DC publishes an issue date and no project valuation at all. Records are grouped by normalised address text, so the same property may also appear upstream under a different spelling. Verify scope, dates, and contractor information with the issuing jurisdiction before bidding, quoting, or performing work.

DC building
current to Sep 21, 2026
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