Washington Harbour
mixed-use development at 3000 and 3050 K Street, N.W., Washington, D.C., United States

Washington Harbour is a Class-A mixed-use development at 3000 and 3050 K Street, N.W., in Washington, D.C., United States. The southern edge of the development borders the Potomac River on the Georgetown waterfront. Designed by Arthur Cotton Moore, the complex consists of two curved towers and three other buildings attached to them, all in the Postmodern architectural style. Completed in 1986, the complex contains luxury condominia, offices, retail space, restaurants, and underground parking.
Construction of the complex was preceded by a seven-year zoning and legal battle over the future of the Georgetown waterfront. This dispute led to the designation and development of a new national park, the Georgetown Waterfront Park. A two-year controversy over the design of the complex, which included accusations of malfeasance by a D.C. agency, followed. Construction began in November 1981, and was complete in June 1986. Critical reception of Washington Harbour was mixed, but the public quickly embraced it.
Washington Harbour suffered management problems in its first two years, which led to the removal of one of its developers as property manager.
Begin with the source’s own compact description: “Washington Harbour” is mixed-use development at 3000 and 3050 K Street, N.W., Washington, D.C., United States. The dossier treats that line as a proposition to test through Washington, Harbour and mixed-use, not as a finished interpretation.
Why this record matters
The phrase “mixed-use development at 3000 and 3050 K Street, N.W., Washington, D.C., United States” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Sep 20, 2026. The linked authority identifier is Q7971901. Authority coordinates are 38.902, -77.060. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1986 and 1981.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Washington Harbour”, its source revision and the description used here.
- Expand the search: follow Washington Harbour primary sources, Washington Harbour archive and Washington research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Washington Harbour”?
- Which authority defined the place, boundary or structure at the relevant date?
- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “Washington Harbour” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.