Our Services
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.
Get a Free EstimateUpdated: May 2026

Specialties
Our Home Additions & Structural Services Services

Full-Scale Home Extensions
JD Contracting LLC builds complete room additions, multi-room expansions, and second-story additions for Metro Detroit homeowners. Our licensed team navigates Oakland County permits, engineering reviews, and zoning requirements for seamless home extensions.

Basement & Attic Conversions
JD Contracting LLC converts unfinished basements and attics into beautiful living spaces for Metro Detroit homeowners. Our licensed team installs egress windows, insulation, drywall, electrical systems, and flooring in full compliance with Michigan building codes.

Residential Electrical & Plumbing Systems
JD Contracting LLC handles panel upgrades, whole-house rewiring, plumbing rough-in, fixture installation, and code compliance for residential projects across Metro Detroit. Our licensed team ensures safe, reliable electrical and plumbing systems.
Project Types
Home Additions & Structural Services Project Types We Complete
Room Additions
Ground-floor and multi-room additions with foundations, framing, roofing, and finishes integrated seamlessly into your existing home.
Learn More →Second-Story Additions
Full and partial second-floor additions with structural evaluation, foundation reinforcement, and complete upper-level build-outs.
Learn More →Wall Removal
Structural modifications to open floor plans by removing load-bearing walls and installing engineered steel beams with proper support posts.
Learn More →Foundation Work
Excavation and construction of reinforced concrete footings, frost walls, crawlspaces, and monolithic slabs engineered for Michigan soil conditions.
Learn More →Permit Management
Complete permit preparation, submission, and inspection scheduling across all Oakland County building departments for addition and structural projects.
Learn More →Structural Engineering
Coordination with licensed structural engineers for load calculations, beam sizing, foundation design, and plan review submissions.
Learn More →Mechanical Integration
Extension and integration of HVAC, electrical, and plumbing systems into new spaces with properly sized ductwork, circuits, and supply lines.
Learn More →Where We Work
Home Additions & Structural Services Across Oakland County
Serving 13 communities throughout Metro Detroit. Click a city to see local project examples, common renovations, and service details.
Bloomfield
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Bloomfield Hills
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Birmingham
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Beverly Hills
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Franklin
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Troy
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Berkley
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Rochester Hills
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West Bloomfield
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Royal Oak
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Farmington Hills
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Lake Orion
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Clarkston
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Our Work
See Our Home Additions & Structural Services Projects
Browse completed home additions & structural services projects across Oakland County.
View Our PortfolioFAQ
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.