This addition to an existing residence comprises a dining room, remodeled kitchen, master suite, and an upstairs office with roof deck. The dining room opens to a deck on one side and a covered patio on the other, inviting the outdoors in and linking the original house with the addition. Burnished concrete block walls protect the house on its northern exposure and separate the living area from the master suite. Tall windows and a vaulted ceiling in the upstairs office frame treetop views and flood the space with diffuse northern light.