Designed by Bates Masi + Architects LLC, the waterfront site of an existing 1970’s kit house overlooks layers of wetlands to an estuary, the bay, and the ocean. The client set the parameters of keeping the existing structure while doubling the size of the house with an addition. The existing structure consists of glulam post and beam construction connected with steel plates. The architect chose to clearly identify the existing system of the house and create a dialogue with a contrasting panelized system in the addition. The new system utilizes prefabricated elements that resolve multiple structural and spatial problems. Examining the strategy of a kit of parts, current material fabrication technologies are utilized to expand on this idea.