Custom Builds & Additions in Knoxville
Custom homes, additions, garages, cabins, and one-of-a-kind builds — bringing your vision to life in Knoxville and surrounding areas.
500+
Projects Completed
15+
Years in Knoxville
5-Star
Google Rated
Licensed
Bonded & Insured
Not every project fits a template. That's where we shine.
At Green Home Installations, we specialize in custom builds that require creative problem solving and experienced craftsmanship. Whether you’re adding onto your existing home or building something entirely new, our team manages every detail from permits to final walkthrough.
Every custom build is unique. Here's what's possible.
Home additions
Room additions, second story additions, and whole home expansions
Custom homes
New construction custom homes designed and built to your specifications
Garages & workshops
Attached, detached, and custom garage and workshop builds
Cabins & tiny homes
Custom cabin and tiny home builds for residential or recreational use
Greenhouses & specialty builds
Custom greenhouse, barndominium, and specialty structure builds
Our Simple Process
Free Consulation
We meet at your property, assess the space, and discuss your vision - no pressure, no cost
Custom Design + Quote
We Build Realistic Renderings and Provide a Detailed Itemized Quote
We build it
OUr in-house crew handles everything from permits to final walkthrough
What our clients say
Frequently Asked Questions
How much does a home addition cost in Knoxville?
Home additions in Knoxville typically range from $30,000 to $150,000+ depending on size, scope, and finishes. We provide free detailed quotes after an on-site consultation.
How long does a custom build or addition take?
Timeline varies significantly by project — a garage build may take 4-6 weeks while a full home addition can take 3-6 months. We provide a detailed timeline before every project starts.
Do you handle design and engineering?
We work with trusted local architects and engineers when needed. For simpler projects our team handles design in-house including 3D renderings before construction begins.
Do you handle permits for custom builds?
Every project is different. After your consultation we’ll walk you through exactly what’s needed — we offer a permit package for those who want us to handle it, or we can guide you through pulling your own permits if you prefer.
Do you serve Farragut, Maryville, and surrounding areas?
Yes — we serve Knoxville and all surrounding areas including Farragut, Maryville, Lenoir City, Oak Ridge, and beyond.
Ready to build? Lets talk.
Fill out the form below and we’ll be in touch within 24 hours to schedule your free consultation.