Room additions, rear additions, and second-story additions — structural engineering and permits in-house, tied cleanly into the home you already have. Most additions run 4–7 months on site.
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Addition scope: design and structural engineering, foundation and framing tied into the existing structure, roofline integration, full electrical and plumbing extension, insulation, drywall, and finishes that match the rest of the house. Permitted, inspected, and warrantied.
Layout, elevations, and structural engineering for the tie-in. We confirm what the existing foundation and roof can carry before anything is priced.
Permit pulled with the city. Site protection, temporary weatherproofing, and selective demo where the addition meets the house.
Foundation, framing, MEP, roofline, and finishes. Typically 4–7 months on site, depending on size and how much of the existing house is opened up.
Design and structural engineering: 6–10 weeks. Permit: 6–12 weeks depending on the jurisdiction. On-site construction: 4–7 months. Total from kickoff to final inspection: roughly 8–12 months.
Most additions we take on land between $180,000 and $450,000. Size, single-story versus a second story, foundation conditions, and how much of the existing house is reworked at the seam all move the number. We give a real figure after a site walk.
Yes. Second-story additions need a structural review of the existing foundation and walls — sometimes they carry the load as-is, sometimes they need reinforcement. We confirm that in the design phase before you commit to the scope.
Usually yes. An addition is built largely outside the existing footprint, so we seal the connection point and keep the rest of the house livable. We open the wall between old and new late in the schedule.
Yes. We pull the building permit and prepare the structural and Title 24 documents. If your property has an HOA, we prepare the submittal package for their architectural review.