Home Addition Specialists
Add the space your household needs while treating the original structure, circulation, building systems, and exterior as one connected design problem.
At a glance
Types of Additions
Design Builders evaluates additions as complete construction projects, coordinating the new space with the existing home instead of treating it as a disconnected room.
New everyday living space can be planned around circulation, natural light, furniture, structure, and its connection to the existing rooms.
Bedrooms, bathrooms, closets, privacy, and building-system needs are considered as one connected suite rather than separate pieces.
Screened porches, covered gathering areas, decks, and their transitions to the house can extend how the property is used.
Roof forms, foundations, openings, exterior materials, utilities, and interior details are studied as part of the addition scope.
Architectural continuity: Roof forms, exterior materials, openings, circulation, and interior details are studied so the addition relates intentionally to the existing home.
Existing-condition documentation: Measurements and, where useful, LIDAR scanning support an as-built model before proposed work is developed. Concealed conditions can still exist and are handled through the written process.
Building-system coordination: Heating and cooling, electrical, plumbing, drainage, and structural needs are considered with the expanded layout and scoped with qualified trade partners.
Managed construction: Design Builders coordinates the trade partners, materials, inspections, decisions, and sequence from the existing-house tie-in through completion.
Common questions
Before construction pricing, the team needs to understand the existing home, intended use, proposed layout, tie-ins, selections, and likely trade scope. That design work is billed at $150 per hour and typically totals $8,000–$12,000 as part of a project Design Builders expects to build.
No. Measurements or LIDAR documentation and the as-is and proposed Chief Architect models support a construction project; they are not offered as a standalone design package.
The Anderson lake-house case study shows a great-room and outdoor-living addition connected to an existing A-frame.
Share what the existing home lacks, how you hope to use the new space, and where the property is located. The introductory conversation helps determine fit and the right next step.