Split-Level Additions
Seamless Upgrades, Smart Design
Unlock the Hidden Potential in Your Split-Level Home
The split-level was a dream home once - a step up that showed you'd made it. More space than a ranch, better layout than a cape, room for a growing family.
But by today’s standards, what once seemed spacious started feeling... small.
A new Master Suite above the kitchen & living room level opens up a world of possibilities.
Add that fourth bedroom, and you're not just gaining space - you're jumping into an entirely different value bracket. In most Long Island markets, a 4-bedroom commands significantly more than a 3-bedroom, often $200K more, depending on your neighborhood. This is a rare time where a home addition pays for itself in added value.
We've transformed so many of these homes throughout Long Island, including Massapequa, Great Neck, Hicksville, Plainview, Syosset, and Jericho. And we know exactly how to make them work for how families actually live today.
You loved this house once. Let's make you love it again - without the hassle and expense of starting over somewhere else.
Endless possibilities
Split-Level Addition Options
Primary Suite Above the Kitchen
The most popular split-level transformation: build a luxurious primary suite above your kitchen and living area. You get a spacious bedroom with walk-in closets, spa-quality bathroom, and complete separation from kids' bedrooms—all without expanding your foundation.
Recent Project Example: We added an over 500 Sq ft primary suite to this classic Nassau County Split-Level home. Giving the parents a spacious new bedroom, en-suite luxury bathroom, and walk-in closet.
They turned the smallest existing bedroom into a study, and reclaimed the original Master Bedroom for one of their girls. Everyone got something they needed.
Kitchen Renovations During Construction
Building above the kitchen often requires some structural modifications that may effect future kitchen renovation plans. So it's a good idea to consider the future, or do it all at once.
Decorative Updates
The architectural style of the existing spaces often gets an upgrade, too. Making the split-level addition look as though it's NOT an addition is our specialty.
Level-Connecting Additions
Removing 'load-bearing' walls is a wonderful way to open up the space and have the main floor feel like one big, beautiful space to enjoy.
Perfect for split level homeowners
Smart Investment for Long Island Homeowners
Split-level additions deliver exceptional returns on investment in Long Island's competitive real estate market. These projects solve the unique layout challenges that hold split-level values back while preserving the distinctive mid-century character that makes these homes attractive to buyers.
Smart Investment Returns
- Split-level additions are among our most popular projects because they deliver the biggest value jump—moving your home from the 3-bedroom market into the premium 4-bedroom tier.
- Cramped bedrooms are the #1 complaint in split-levels. We solve it without making you uproot your family from the neighborhood they love.
- Enhanced resale potential—updated split-levels sell faster and command premium prices
Preserved Split-Level Character
- Proven designs that make split-levels function like much larger homes
- Expert craftsmanship that complements your neighborhood's architectural style
- Seamless exterior integration—looks like it was always part of the original home
Enhanced Daily Living
- Open-concept flow between previously disconnected levels
- Strategic space utilization that maximizes square footage potential
- Improved natural light throughout the home
- Modern functionality that matches how families live today
Why Split-Level Additions Beat Moving
Buying a larger home in the same Long Island neighborhood costs significantly more than adding space to your current home. Plus, you avoid closing costs, moving expenses, and higher property taxes.
What You Gain:
- Stay in your school district and neighborhood
- More affordable than buying up in today's market
- Avoid the stress and disruption of moving
- Keep the mortgage rate you already have
- No competition with other buyers in a tight market
Find the Right Addition for Your Home
Explore Other Addition Types
Whether you need a second floor, master suite expansion, or sprawling family room, we create additions that enhance both lifestyle and property value.
Cape style additions
Complete your Cape Style home by adding a second story with primary suites, extra bedrooms, and proper ceiling height designed for modern family life.
Ranch Style additions
Expand your single-story living with open-concept additions that preserve your ranch's horizontal lines and accessible layout.
Home Additions Overview
Not sure which addition type fits your home? Start with our complete guide to Long Island home additions.
Clarity, Efficiency, and Craftsmanship You Can Trust
How We Handle Split-Level Additions
Consultation and Assessment
We walk your home and discuss how you use each level. Split-levels have unique structural opportunities—we'll show you what's possible based on your specific layout and lot conditions.
Design Development
We create 3D visualizations that show how the addition integrates with your home's tiered architecture. The goal: make it look like it was always there while solving the circulation and lighting issues common in 1960s-70s split-levels.
Permits and Approvals
We handle all municipal submissions and building department coordination across Nassau and Suffolk Counties. Our established relationships with local building departments in towns like Oyster Bay, Hempstead, and Babylon expedite approvals.
Material Selection
Our in-house designer guides you through finish selections in our private showroom. We ensure materials match your home's existing exterior and complement the mid-century character that makes split-levels distinctive.
Construction Execution
Our crews specialize in split-level construction—working with multiple floor levels, strategic load-bearing wall modifications, integrating new structure with existing framing, and maintaining your home's functionality during construction.
Weekly progress updates keep you informed throughout the process.
A Clear, Guided Process for a Seamless Split-Level Addition
Built on Structre and Clear Communication
Split-level additions require careful structural planning and constant coordination between design and construction. If you appreciate detailed documentation, clear timelines, and knowing exactly where your project stands, we're a good fit.
We handle the complexity so your addition happens smoothly.
Detailed Documentation
Every decision, timeline, and budget item tracked
Weekly Progress Updates
You always know what's next
Systematic Process
From permits to final walkthrough, nothing gets missed
Complete Transparency
No surprises, no finger-pointing
Why Long Island Homeowners
Choose Center Island Contracting
Our team brings decades of construction experience to every split-level project. We understand what works and what doesn't when transforming these unique homes. Our systematic approach ensures your addition integrates perfectly with your existing structure while delivering the functionality your family needs.
Every detail receives professional attention because that's how we build lasting relationships with our clients.
- Over 20 years serving Nassau and Suffolk County communities
- Licensed and insured New York State general contractors
- Three 2022 PRO New York Remodeler Awards
- Proven expertise transforming split-level homes across Long Island
- Detailed documentation and systematic project management
- Hundreds of completed split-level additions in your area
Delivering impeccable craftsmanship and exceptional results
Award-Winning General Contractor & Home Builder
Proudly recognized by Houzz, LIBI, and PRO New York for outstanding craftsmanship and service, our award-winning team continues to raise the bar in Long Island homebuilding.
PRO New York
Remodeler of the Year
Awarded for Exceptional Design & Construction
About Split-Level Additions
Frequently Asked Questions
Our Family of Brands
An Integrated Vision for Building, Designing, and Living Well
Center Island Contracting brings together a group of expert divisions dedicated to turning your home vision into reality, from concept and design to construction and completion.
As featured on NBC’s George to the Rescue
Center Island Gives Back
When NBC’s George Oliphant and the team from George to the Rescue met Jackie Pearsall, a devoted mother, wife, and School Teacher, living with ALS (Lou Gehrig’s disease), they discovered a Commack Mom struggling to adapt their home to the rapid progression of his illness.
The request was to convert a second-floor bathroom into a nadicap accessible space for Jackie to use as her condition progressed....
But Center Island Contracting had a better plan!.
