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Home Additions & Structural Services

Room additions, second-story expansions, and structural modifications for Oakland County homeowners. Foundation work, load-bearing wall removal, and full permit management.

Home Additions & Structural Services

What's Included in Our Home Additions & Structural Services

Additions are the most complex residential projects we do, and the ones where experience matters most. You're tying into an existing structure, dealing with zoning setbacks, coordinating with a structural engineer, and managing a permit process that varies by municipality. We've done this across Oakland County for 25 years. We handle everything from single-room bump-outs to full second-story additions: foundation, framing, load-bearing wall removal, steel beam installation, roofing, and all the mechanical tie-ins so the new space feels like it was always part of the house.

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Updated: May 2026

Home addition framing in progress: JD Contracting crew on scaffolding installing plywood sheathing and Tyvek HomeWrap housewrap on a first-floor bump-out addition to a two-story colonial home by JD Contracting LLC

Our Work

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Browse completed home additions & structural services projects across Oakland County.

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FAQ

Home Additions & Structural Services FAQs: Oakland County, Michigan

Home additions in Oakland County typically range from $80,000 to $250,000 or more. Cost depends on square footage, foundation requirements, and interior finishes. Costs vary by scope and complexity. Every project gets a fully itemized written proposal.

Yes, all home additions in Oakland County require building permits, plus electrical, plumbing, and mechanical permits. We handle the entire permit process and inspection coordination.

Most home additions in Metro Detroit take 3 to 6 months from permit approval to final walkthrough. Timeline depends on size, foundation type, and weather. Actual timelines may vary based on project complexity, permit timelines, material availability, and site conditions.

Full-scale extensions in Oakland County typically range from $100,000 to $300,000 depending on size, foundation type, and finish level. Two-story additions cost more per square foot. Costs vary by scope and complexity. Every project gets a fully itemized written proposal.

A typical basement conversion in Metro Detroit takes 6 to 10 weeks. Timeline depends on scope, permitting, and whether plumbing or egress windows are involved. Actual timelines may vary based on project complexity, permit timelines, material availability, and site conditions.

Yes, provided the attic has adequate ceiling height and structural capacity. We handle reinforcement, insulation, dormers, electrical, and all interior finishes to meet Michigan code.

Yes. Second-story additions require structural engineering, foundation assessment, and comprehensive permitting. We coordinate with engineers and local building departments throughout Oakland County to ensure the addition meets Michigan residential code.

Room additions in Oakland County typically recoup 50 to 70 percent at resale. Master suite additions and family room expansions tend to perform best. The biggest return comes from adding square footage in neighborhoods with high price-per-square-foot values. Costs vary by scope and complexity. Every project gets a fully itemized written proposal.

We coordinate with licensed Michigan structural engineers for load calculations, beam sizing, and foundation design. Engineering drawings are submitted with permit applications. We manage this coordination so you have one point of contact throughout the project.

A bump-out extends an existing room by 2 to 8 feet, cantilevering over the existing foundation. A full addition requires a new foundation, framing, and roofline. Bump-outs cost less but offer limited square footage. We assess which makes sense for your home and goals.

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