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SW Construction
Additions & Expansions in South Lyon, MI
More space for your family without leaving the neighborhood you love.
When Your Home Needs More Room
Your family is growing, your needs have changed, or you've simply outgrown your space. Before you start house hunting, consider what an addition can do. A well-planned expansion can give you everything you need — more bedrooms, a bigger kitchen, a dedicated home office, an in-law suite — without uprooting your life.
At SW Construction, we specialize in additions that feel like they were always part of the house. Not tacked on. Not obvious. Just more of the home you already love.
With 10+ years of experience building in South Lyon and Oakland County, Michigan, we understand local building codes, soil conditions, and the architectural styles common in Oakland County neighborhoods. Steve personally oversees every project from initial planning through final walkthrough.
Whether you're adding a single room or going up with a full second story, we manage the entire process: design consultation, structural engineering, permitting, construction, and finish work. One contractor. One point of contact. One person accountable.
What We Build
- Room additions
- Second-story expansions
- In-law suites & ADUs
- Sunroom additions
- Garage conversions
- Bump-out expansions
- Foundation work
- Structural engineering
Why Homeowners Choose Additions
Stay in Your Neighborhood
You love where you live. Your kids have friends. Your commute works. An addition lets you get the space without the move.
Often Cheaper Than Moving
When you factor in real estate commissions, closing costs, moving expenses, and today's mortgage rates, building an addition can be the smarter financial move.
Built Exactly How You Want
No compromising on someone else's layout. Your addition is designed around your family's needs, your style, and your daily life.
Steve and his team completed our addition with the utmost professionalism. The attention to detail was excellent and the project was done on time. I would hire him again without hesitation.
Marilyn Greene|Addition & Expansion
Frequently Asked Questions
How long does a home addition take?
Most additions take 3-6 months depending on size and complexity. A single-room bump-out might be 8-12 weeks, while a second-story addition can take 4-6 months. We provide a detailed timeline during your estimate.
Do I need to move out during an addition?
Usually not. We plan the work to minimize disruption and maintain a safe, livable home throughout construction. For second-story additions, there may be brief periods where certain rooms are inaccessible.
How much does a home addition cost in Michigan?
Costs vary significantly based on scope. A basic room addition starts around $40,000-$60,000, while second-story additions or in-law suites typically range from $80,000-$200,000+. We provide honest, detailed estimates with no hidden costs.
Will an addition increase my home's value?
In most cases, yes. Well-designed additions that add functional living space — especially bedrooms, bathrooms, and kitchens — typically recoup 50-80% of costs at resale. We help you plan additions that maximize both livability and value.
Do you handle permits and engineering?
Yes. We manage the entire process — architectural plans, structural engineering, permit applications, inspections, and final sign-off. That's included in our service, not an add-on.
Get Your Free Addition Estimate
Tell us about your project and we'll get back to you within 24 hours.
More Room for the Life You're Building
Let's talk about what your home needs. Free consultation, honest pricing, and a partner who'll be there every step of the way.