From Blueprints to Brillance! For over thirty-seven years, Northcape Design’s talented design-build team has created many beautiful renovations and additions, as well as new homes, in the Dartmouth – Lake Sunapee area. Our award-winning firm’s design staff strives to create designs that allow new homes and additions to compliment and enhance existing neighborhoods. Northcape’s design-build process combines high-quality, professional architectural design services with high-quality, professional construction services. This marriage of operating style and service provides one-stop shopping, accountability, functional and cost-efficient designs that are highly valued by today’s consumer. Our architectural designers, interior designer and project managers work as a team to provide you a seamless and enjoyable experience!