#1 Chicago General Contracting Contractor: Pegasus Construction
Finding the right contractor to build an addition on your Kelvin Park, Chicago home can be a challenge. It’s important to thoroughly vet and interview your options before deciding who to hire.
To ensure that you find a contractor that meets your needs and budget expectations, download our free 3-Step Guide to Choosing A Remodeling Contractor.
Whether you decide to hire our team at Pegasus Construction or another local remodeler, you can use this helpful guide to be confident knowing you have your bases covered.
A successful home remodel starts with a clear plan. With hundreds of satisfied Kelvin Park, Chicago customers, our proven 6-Step Design-Build Process ensures a smooth and stress-free remodeling experience.
1 in 3 remodels exceed their budget—but yours doesn’t have to. At Pegasus Construction, we’ve created a budgeting system to eliminate surprise costs, with our projects averaging just a 5% variance from the initial budget to the final price.
Feel confident knowing your home remodel is managed by experts. Each project is assigned a dedicated team, led by an experienced master carpenter, ensuring timely completion. While other companies face delays of weeks or months, our projects average less than a 2-day difference from the original schedule.
Adding space in Kelvin Park usually means a rear addition, dormer, or reconfiguring a two-flat rather than building out wide on a city lot. The challenge is expanding a century-old home without losing its masonry and proportions.
We design and build additions throughout Kelvin Park and handle the Chicago Department of Buildings permits and zoning. We match the new space to the home’s original brick and rooflines so it looks like it belongs.
If you find yourself needing more living space and want to expand your home rather than upsize, a single-level addition is the place to start.
The most cost-effective way to add living space, a single-level addition attaches to the side of the home. They typically require expanding the home’s foundation, and are most often used for expanding kitchens, living rooms, or home offices.
Single-level additions are typically limited by lot size and setback laws. For this reason, these additions are better fit for homes on larger lots.


Want to expand your home without expanding its footprint? Many homeowners don’t realize it’s possible to expand their living space by adding a second story.
Although often more expensive than single-level additions, second-story additions can be a great solution for homeowners who need additional living space but don’t have enough yard space to build out.
Second-story additions tend to be more technically challenging, as they require extensive engineering and planning to ensure that they don’t disrupt the design or aesthetic of the existing structure.
For some homeowners, a basement addition is the best way to expand their living space. This often involves either raising the home or digging out the crawl space.
Homeowners who go this route often use their basement for additional bedrooms, a recreational space, or an Accessory Dwelling Unit (ADU).
Basement additions are among the most expensive methods of adding onto a home. Extensive manual labor, planning, and permitting all contribute to the high cost of basement additions.

At Pegasus Construction our mission is to change the lives of homeowners by helping them expand their homes with custom home additions built just for them. However, we also recognize that not every home addition project is the right fit for our team. Here is how to tell if Pegasus Construction is or isn’t a good fit for your home addition project.
Schedule an advisory call with a Design Consultant
Invite us to your home for an initial evaluation
Align on a budget and meet to discuss the design
Hear that this client had to say!
“…I felt truly heard and valued during our conversation. I came to your company with questions about our projects, and Greg provided thoughtful, flexible scenarios and options to help us achieve our goals. He genuinely seemed to care about me and my family as real people.”
Many vintage Chicago bungalows, two-flats, and greystones in Kelvin Park Chicago are built on foundations capable of supporting an upper level, but it requires a structural assessment. Pegasus works with licensed engineers to evaluate your existing framing, foundation, and load paths before committing to a design. We will not promise a second story until we know the structure can handle it.
Often yes. Converting an existing attic with dormers can add significant livable square footage at 30 to 40 percent lower cost than a ground-up addition because the foundation and exterior walls already exist. Pegasus will price both options so you can compare real numbers before deciding.
In Kelvin Park Chicago, home additions typically run $150 to $250 per square foot for a fully finished, permitted addition including framing, mechanical, electrical, plumbing, and finishes. Complexity and site access affect where you land in that range. You receive a detailed estimate before any contract is signed.
Permit approval through the Chicago Department of Buildings in Kelvin Park Chicago typically takes four to eight weeks depending on project complexity and current review volume. Pegasus submits complete, code-compliant drawings the first time to avoid back-and-forth that delays the clock. Permit timelines are built into the project schedule from day one.
Matching vintage Chicago bungalows, two-flats, and greystones requires attention to roof pitch, exterior materials, window proportions, and trim profiles. Pegasus sources the same siding species, brick veneer, and roofing materials as your existing home wherever possible so the addition looks like it was always there.
The Chicago Department of Buildings in Kelvin Park Chicago enforces setback requirements limiting how close structures can be to property lines, and zoning codes cap total lot coverage. Pegasus researches your specific parcel restrictions before design begins so there are no scope surprises after plans are drawn.
Choosing the right contractor for your remodel can be simple. Use our free guide to walk you through 3 easy steps to select the perfect contractor.