Home Additions
Home Additions Designed as Part of the Whole Home
Adding square footage is about more than building new walls. Every addition changes how your home functions, from structural loads and heating requirements to airflow, moisture management, and overall comfort.
That’s why we approach every project as part of one complete building system. Before construction begins, we evaluate how the new space will connect with your existing home so the finished result feels natural, performs efficiently, and supports the way you live for years to come.
Whether you’re expanding your living area, creating a new primary suite, or building upward with a second story, our goal is to create an addition that enhances your entire home—not just adds square footage.
Is This The Right Fit For You?
Our home addition service is a great fit if you:
- Need more space but love your current neighborhood
- Want to expand instead of buying a new home
- Are planning a large structural addition
- Want your addition to look and feel original to the home
- Care about comfort, indoor air quality, and energy efficiency
- Value detailed planning before construction begins
- Want experienced guidance from design through completion
Our Home Addition Service
A successful home addition should improve more than your floor plan.
Every project begins by understanding how the existing home was built and how the new space will affect the entire structure. We consider framing, foundation capacity, HVAC performance, insulation, ventilation, and moisture management before construction starts, allowing every system to work together once the addition is complete.
We build additions that blend naturally with your home’s architecture while creating comfortable, healthy spaces designed for everyday living.
How The Home Addition Process Works
1. Discovery & Project Planning
We discuss your goals, evaluate your existing home, and determine the best approach for creating additional living space.
2. Design & Engineering
Your addition is carefully designed with structural planning, building performance, and long-term functionality in mind. If needed, engineering calculations are completed before construction begins.
3. Fixed-Price Proposal & Agreement
You'll receive a detailed proposal outlining the scope of work, project timeline, and construction process so you know exactly what to expect.
4. Construction & Integration
Our team builds your addition while carefully connecting it to the existing home, ensuring both the structure and building systems work together seamlessly.
5. Final Walkthrough & Completion
Once construction is complete, we review every detail to ensure your new living space is finished to the highest standards and ready for everyday life.
Recent Projects: Smart, Integrated Extra Space
Built on Trust. Inspired by You.
Our homeowners are at the heart of everything we do. From thoughtful design to lasting quality, their stories reflect our commitment to creating homes that nurture well-being, comfort, and pride. Hear what makes the Marnella Homes experience truly exceptional.
FAQs
What types of home additions do you build?
We build major residential additions, including primary suites, family room additions, kitchen expansions, garage additions, second-story additions, whole-home expansions, and ADUs.
Can my home support a second-story addition?
Many single-story homes can, depending on the existing framing and foundation. After opening the necessary areas, we evaluate the home’s structure and work with an engineer to determine what modifications, if any, are required.
Will the addition match my existing home?
Yes. Every addition is designed to integrate naturally with your home’s architecture, materials, and overall character while improving its performance.
Do you handle permits and engineering?
Yes. We coordinate the planning process, including design, engineering, permitting, and construction, to help keep your project moving smoothly.
Let’s Create The Space Your Family Needs
Whether you’re expanding your home, adding a second story, or building an ADU, we’ll help you create a space that’s thoughtfully designed, expertly built, and made to perform for years to come.