Additions & New Construction in the NW Burbs

At OHi, we believe your home should evolve with your lifestyle. Whether you’re welcoming a growing family, launching a home-based business, or finally ready to build your dream addition, our team is here to bring your vision to life. Based in Elk Grove Village, OHi proudly provides expert home additions and new construction services across the Northwest Suburbs of Chicago—from Arlington Heights and Schaumburg to Barrington and Mount Prospect.

With a legacy spanning over 100 years, our family-owned business understands what it takes to design and build functional, beautiful living spaces that enhance both comfort and value. In this post, we’ll explore how OHi helps homeowners throughout the Northwest Suburbs reimagine their living space through custom additions and new construction—and why our proven design-build approach makes the entire process smoother and more rewarding.

Why Homeowners in the Northwest Suburbs Are Choosing Additions

The Northwest Suburbs of Chicago are known for their excellent schools, spacious lots, and strong community ties. But as families grow and lifestyles shift, many homeowners face a common dilemma: love the neighborhood, but outgrow the house.

Home additions offer the perfect solution—adding square footage, functionality, and modern amenities without uprooting your life. Whether it’s a second-story addition in Park Ridge, a sunroom in Inverness, or a new garage in Palatine, OHi tailors each project to suit your unique needs and architectural style.

Popular Types of Additions Include:

• Primary Suite Expansions: Create a luxurious, private retreat with custom closets, spa-like bathrooms, and natural light.

• Family Room Additions: Add open-concept living space perfect for entertaining, relaxing, or family movie nights.

• Home Offices: With remote work on the rise, homeowners are investing in quiet, productive workspaces.

• In-Law Suites & Guest Rooms: Provide privacy and comfort for extended family or long-term guests.

• Second-Story Additions: Maximize square footage on smaller lots with vertical expansion.

New Construction Options: Building from the Ground Up

In some cases, an addition may not be enough—or may not be the right solution. OHi also offers new construction services for homeowners ready to take a bolder step. Whether you're looking to build a detached structure, expand your home with a large-scale redesign, or even tear down and start fresh, we offer the full spectrum of planning, design, and construction support.

Common New Construction Projects:

• Guesthouses & Pool Houses

• Detached Garages with Loft Spaces

• Large-Scale Additions with Full Gut-Renovations

• Custom Outdoor Structures

• Accessory Dwelling Units (ADUs)

Our team helps you evaluate zoning, code requirements, and long-term goals to determine the most efficient and valuable path forward.

The OHi Difference: Design-Build Excellence from Concept to Completion

One of the key reasons Northwest Suburban homeowners trust OHi with their additions and new construction projects is our integrated design-build model. Unlike traditional construction where you juggle separate contractors, architects, and designers, OHi delivers a streamlined process with one dedicated team.

Here’s what that means for you:

1. Collaborative Design Experience

You’ll work closely with our in-house designers to plan every detail of your addition or new construction project. Using 3D renderings and personalized design boards, we’ll help you visualize how the new space will look and function before any work begins.

Our design team understands the unique architectural styles found in the Northwest Suburbs—from mid-century ranch homes in Des Plaines to Tudor-style homes in Arlington Heights. We’ll ensure your addition blends seamlessly with your existing home while enhancing your property’s curb appeal.

2. Accurate Budgeting & Transparent Pricing

Home remodeling can feel unpredictable—but not with OHi. Thanks to our deep experience and detailed planning, we’re able to provide accurate estimates early in the process and stick to them. We’ll guide you through material selections, layout options, and features that align with your budget and vision.

3. Dedicated Project Management

Once construction begins, your dedicated project manager oversees the entire process. From scheduling and permits to inspections and daily communication, you’ll have a single point of contact keeping your project on track.

4. Skilled Construction Team

Our team includes highly experienced craftsmen who take pride in their work. We maintain a clean job site, prioritize safety, and treat your home with the utmost respect throughout the build. Many of our team members live in the Northwest Suburbs themselves, so your project is personal to us.

Serving the Northwest Suburbs: Local Expertise You Can Trust

We’re proud to serve a wide range of communities in the Northwest Suburbs. Each suburb has its own character, building codes, and market trends—something national or less experienced contractors often overlook.

Some of our most popular service areas include:

• Arlington Heights: Known for its walkable downtown and mix of historic and modern homes.

• Schaumburg: Suburban comfort meets urban convenience; perfect for growing families.

• Palatine: Diverse housing stock and large lots make it ideal for additions and outdoor living upgrades.

• Barrington: Custom homes and estate properties often require high-end materials and attention to architectural detail.

• Mount Prospect & Des Plaines: Older homes with solid bones, ideal for reimagining space through additions.

No matter where you live in the Northwest Suburbs, OHi brings the same level of care, creativity, and professionalism to your home.

Frequently Asked Questions About Additions & New Construction

How long does a home addition typically take?

Most additions take 3–6 months from design to final walkthrough, depending on the size and complexity. Our design-build process helps streamline the timeline by reducing delays between phases.

Can I live in my home during construction?

In many cases, yes. We work carefully to isolate the construction area, minimize dust, and maintain safe access. For larger projects or full-home renovations, we may recommend temporary housing.

Will my addition increase property value?

Yes—when thoughtfully designed and well-executed, additions can significantly boost your home’s resale value. We help you choose layouts and finishes that maximize ROI and livability.

What kind of permits are required?

We handle all the necessary permits and coordinate with local municipalities in the Northwest Suburbs to ensure your project complies with zoning and building codes.

Ready to Expand? Let’s Start with a Conversation

Adding on to your home—or building something new—can be one of the most exciting investments you make. But it can also feel overwhelming without the right team.

At OHi, we’re more than just contractors—we’re your trusted partners. With deep roots in the Chicagoland area and a commitment to excellence in design and craftsmanship, we’ll help you create a space that reflects your lifestyle and adds lasting value to your home.

Take the next step today:

• Visit contactohi.com to schedule a free design consultation.

• Browse our portfolio for inspiration.

• Meet the team behind the build.

Your dream home doesn’t have to exist somewhere else—it can grow right where you are, in the heart of the Northwest Suburbs.