1909 MARTIN LUTHER KING JR Avenue SE unit: Floor 5 Floor 5 Top floor penthouse office space available for full service lease at 1909 Martin Luther King Jr Avenue SE, Washington, DC. This brand new, Class A suite is located on the 5th floor of the MLK Gateway Phase II development and is offered in shell condition-ready for your custom buildout, with central heating and cooling. Office tenants enjoy secure access through the main lobby and elevators. This premier office-over-retail building is 95% leased and sits at the gateway to historic Anacostia, with exceptional visibility at the foot of the 11th Street bridge. One of only two remaining office suites-an outstanding opportunity in a signature new development.