Award-winning design & remodeling is just one of the many features that sets us apart!

Professional Home Additions In Illinois

With the addition of new family members your home may need some additions as well. Our home addition team at Legacy Design & Construction has the experience you need to make additions to your home. Whether you are looking to add an extra bedroom, office, sunroom, living space, or even bay windows to your home we can help. Our experts can help you add the perfect living space for you and your family to enjoy. If you need extra room in your home and need a professional company to help you then look no further

Our Home Additions Process

Our team at Legacy Design & Construction can help you make additions to your home. Whether you want to remove a wall or add an extra room to your home. Our experts work with you to design every aspect of your new addition while taking into consideration what your vision for the space will be. We have years of experience helping homeowners in St Charles, IL, and the surrounding area select everything for their project. Our team has made additions to hundreds of homes over the years and can help you create that perfect office space or extra room. Our team takes into consideration what your needs for the room will be as well as how it will function in your home.

Before making home additions we also consider:

  • What will you be using the space for
  • What is the time frame you want for this project
  • What is your vision for the new room or space
  • What is your budget
  • And more

Building your new home addition is what our experts specialize in. The possibilities for additions are endless, but our experts will work with you to ensure that your new space is a good fit for your home and your lifestyle.

Home Additions: Start to Finish

  1. Design: Our team of experts begin every process by helping our homeowners design their new addition. We have designed almost every style of addition imaginable, from office spaces to bedrooms we can design your perfect space. We begin by collecting any reference materials you may have collected as inspiration for the project, and begin designing.
  2. Measurement & Layout: The next step in any project is to take measurements for your new addition on site. Whether we are adding windows, building new rooms or building any other style of addition, we take accurate measurements to ensure the project is completed properly.
  3. Budget: Every home addition project begins with a budget. Our team of experts have the experience needed to provide you with top quality products and selections for your home addition project that will fit your budget properly.
  4. Building The Addition: Once the design, measurements, and products are selected our team will begin working on the project. Whether we are tearing out whole walls or building complete additions to your home, we have the experience needed to complete any job correctly.

Get started on your next professional home addition project today by contacting our experts online or by phone to schedule a free 1-hour initial consultation.

Contact Us

Our Home Additions Gallery

Our Services

Please check other remodeling and renovation services we provide throughout Illinois.

Kitchen Remodeling Illinois


Our design layouts will turn your old kitchen into a functional work space with updated aesthetic value and increase your homes marketability!



Our renovations are seamless. The transition between your existing space and your newly renovated space will be virtually undetectable.

Bathroom Remodeling


Enhance your space, update your look, and give yourself a clean place to get ready every morning! Our bathroom projects received awards for innovative space saving ideas!

Basement Remodeling


Our expert craftsmen have the job knowledge and experience to help you turn your unfinished or outdated basement into a new usable living space.

Exterior Makeovers Services


Our team at Legacy Design & Construction can help you turn your home from dated and drab into the home of your dreams.

Service Area

Legacy Design & Construction, Inc. provides remodeling services in St. Charles, Naperville, Aurora, Schaumburg, Elgin, Downers Grove, and other towns West of Chicago. Take a look at our service area page or use our customer locator to find remodeling and renovation jobs we have completed in your area.

Service Area Customers Near You

Latest Work

Take a look at our latest home addition projects throughout Illinois.


Latest Work

Take a look at our latest home renovation and remodeling projects throughout Illinois.

Home Addition Carol Stream, IL

Home Addition

Carol Stream, Illinois
Home Addition Mt Prospect, IL

Home Addition

Mt Prospect, Illinois
Home Addition Naperville, IL

Home Addition

Naperville, Illinois
My wife and I had been waiting for months on having our kitchen professionally remodeled. We had heard so many contractor horror stories. But after seeing the job Legacy did on our neighbor's Master suite addition, we took the leap and contacted ...
Gary & Roseann S - Naperville, IL 60563
This was our first remodeling experience and didn't know what to expect. The job was to completely remodel the upstairs hall bathroom - taking out the tub and replacing it with a walk in shower, new bathroom floor, new wall tiles, new vanity and ...
Roy & Rosey C - Lombard, IL 60148
We hired Legacy Design for a remodel of our first floor, including an addition. The entire team was professional, conscientious and meticulous in their work. We met with several contractors prior to making a decision. Mike and his architect came up ...
Burnie & Kelly G - Naperville, IL 60565

Featured Reviews

Please read the featured reviews or click the button bellow to read all reviews.

View all reviews
It has been a pleasure to work with Legacy. Mike and his staff make sure all details are addressed and the workmanship and design ideas have made our home more beautiful and functional with each job we enter into with Legacy. Thanks so much! ...
Tom - St. Charles, IL 60174
We met Mike at Legacy approx. one year ago at a home improvement/remodeling show. We wanted to update our baths first and maybe later do our kitchen/family room. The design suggestions looked great so we went ahead with the bathrooms. They look ...
Bob & Kyla R - Naperville, IL 60565
A few years back, we had hired Legacy to completely gut and rebuild a main bath on our 2nd level. It was perhaps the first time where a remodel projects was done without a hitch, start to finish and totally exceeded our expectations. We rehired ...
Dan & Sheryl P - St. Charles, IL 60175