Home Addition Contractor in Knollwood, Illinois

Expand your home with Knollwood's most trusted remodeling contractor

Does Your Knollwood Home Need Any of These Changes?

A Home Addition Contractor in Knollwood, Illinois Who Gets You

Finding the right contractor to build an addition on your Knollwood 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.

Clear & Proven Process

A successful home remodel starts with a clear plan. With hundreds of satisfied Knollwood customers, our proven 6-Step Design-Build Process ensures a smooth and stress-free remodeling experience.

True Cost Accuracy

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.

Your Project, On Time

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.

Common Remodeling Challenges for Homes in Knollwood, Illinois Include:

Adding on in Knollwood usually means expanding a mid-century home — a primary suite, family room, or second story — on a generous wooded lot. The challenge is growing the home without it looking tacked on or crowding the trees.

We design and build additions throughout Knollwood and handle the Lake County permits and setbacks for this unincorporated area. We match the new space to the home’s rooflines and materials so it blends in.

Coastal Weather

Additions in Knollwood clear Lake County zoning, setbacks, and permits, since the area is unincorporated. We manage the approvals and inspections so the project moves forward without surprises.

Historic Preservation

Adding to a Knollwood mid-century home means matching rooflines, siding, and proportions so the new space blends in. We design additions that look original to the house, not bolted on.

Large Lot Design

Knollwood families add on for primary suites, family rooms, and space that opens to the wooded lot. We plan additions around how your household lives and grows in the home.

The Right Approach For Your Knollwood Home Addition

Whether you need to add extra room for a growing family or a second level to your home, our team will help you find the best way to expand your space.

Single Level Additions

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.

Second Story Additions

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.

Basement Additions

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.

Design-Build Home Addition Contractor

Our easy-to-follow remodel process will help you expand your living space without the typical home improvement hassle.

1. Work With Our Designers to Plan Your Remodel

2. Our Build Teams Remodel Your Space

3. Gather With Your Friends and Family in Your New Space

Design-Build Contractor For Home Addition in Knollwood

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.

Pegasus may not be a good fit for your Knollwood Home Addition if.....

You want to hire the cheapest contractor.
You prefer to design the project as it is being built.
You plan to do most of the work yourself.
You want to begin the construction immediately.
You want to assemble your own remodeling team.

Contact the Pegasus Construction team about your Knollwood Home Addition if.....

You prefer a balance of cost, quality and experience.
You understand the value i thorough design plans
You value high quality craftsmanship.
You want to take the time to carefully plan your remodel.
You want a team that works together to guide you.

Schedule and Advisory Call to Discuss your Remodel

Step 1

Schedule an advisory call with a Design Consultant

Step 2

Invite us to your home for an initial evaluation

Step 3

Align on a budget and meet to discuss the design

Fill out This Form to Get Started

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.”

Our Knollwood Service Area

We Renovate Homes In The Knollwood Area

Frequently Asked Questions

Can my Knollwood home support a second-story addition?

Many Knollwood ranches and split-levels can support a dormer or upper level, but it depends on the foundation and framing. We bring in a licensed structural engineer to evaluate your home before committing to a design.

Do I need permits and zoning approval for an addition in Knollwood?

Yes. Because Knollwood is unincorporated, additions go through Lake County for permits and zoning review, with setbacks, lot coverage, and any septic capacity to plan around. We manage the approvals on your behalf.

Is a rear addition or a second story better for my Knollwood home?

It depends on your lot and the space you need. A rear addition adds main-floor living space, while a second story or dormer adds bedrooms without expanding the footprint — we weigh both against your property and budget.

How much does a home addition cost in Knollwood?

Knollwood additions generally start around $65,000 for a single-room bump-out and climb past $220,000 for a large two-story addition with finished baths. Foundation work, septic capacity, rooflines, and finish level are the main variables, each estimated in detail.

Will an addition match the rest of my Knollwood home?

Yes — we match siding, brick, rooflines, and window proportions so the addition reads as original rather than added on, and we keep it in scale with the home and its wooded surroundings.

How long does an addition take to build in Knollwood?

Most Knollwood additions take about 3 to 6 months from permit approval to completion, depending on size and complexity. County permitting and any septic review add time up front, which we factor into the schedule.