Luxury Interior Designer on Long Island, NY
Building a new home is your one chance to get every room right from the start. Interiors by Just Design plans your new construction interior before the walls go up, so the finished house fits the way you really live.
Have you decided to build your dream house on Long Island? Maybe you found the perfect lot, and now you need to turn that vision into a home you love. Your best first move is simple. Bring in an interior designer early.
Builders and even some architects do not always plan how each room will be used, or where the furniture will sit. A little forethought goes a long way. Without it, you can end up staring at a living room and thinking, if we only had made it three feet wider. Or, if we had put the window here instead of there. I have walked into many finished homes where owners said exactly that.
Early planning solves these problems on paper, long before they cost you money. So while the drawings can still change, we map furniture layouts, traffic flow, sightlines, and lighting. Then your builder gets a clear plan to follow.
A new build has a lot of moving parts. Here is how we turn your vision into a home, step by step, without the stress and the costly mistakes.
Start before construction if you can. When we join at the plan stage, we shape room sizes, window placement, and flow while the drawings can still change. This one step prevents the biggest and most expensive regrets.
We can hand you the names of trusted Long Island architects and builders we have worked with, or we can work with the team you already hired. Either way, we all pull in one direction. Listening comes first, so your goals guide every decision.
Next, we take all the pieces of the new home puzzle and shape them into one cohesive whole. You get furniture layouts, mood boards, CAD drawings, 3D visuals, lighting plans, and finish selections, all tied to a clear budget.
Finally, we coordinate the trades and keep the schedule on track. Robyn allocates funds wisely, catches problems early, and keeps quality high, so your dream house comes together on time and on budget.
We review your architectural plans and build furniture layouts before a single wall goes up. As a result, every room gets the right proportions, flow, and function.
Changes made after construction cost real money. When you plan finishes, outlets, and openings early, you get it right the first time.
We size sofas, beds, and dining tables to the actual room. Because of that, nothing feels cramped, and nothing floats in empty space.
We place lighting, switches, and outlets where you will truly need them. Good lighting is hard to add once the drywall is up.
Robyn coordinates with contractors, painters, and flooring specialists. You also get trade-only furniture and materials the public cannot buy.
From cabinetry to paint to hardware, every choice works together. So your new home reads as one clear, luxury design.
“Build it once, and build it right.”
Hi, I am Robyn Baumgarten, designer and founder of Interiors by Just Design. My team specializes in new house construction and full home renovation. After decades of new home projects on Long Island, we are known as one of the top design firms for ground-up construction.
I was rated one of the Top 100 Interior Designers in New York. Every project starts with an in-depth interview to define your needs, style, and budget. From there I coordinate the whole process, from concept to completion. You get to relax while I work with your contractors and suppliers, allocate funds wisely, and find real discounts along the way.
Call us. Let us plan your new home the smart way, right from the start.
Our Firm Will Focus On Your
25+
Years of Experience
150+
Manufacturer Partners
Top 100
Interior Designer in New York
Great new homes are never a one-person job. Our design firm is all about working together, because as your dream team we are here to build your dream house and skip the stress and the mistakes.
How do we get it done? Listening is first and foremost. After that, we take every piece of the construction puzzle and shape it into a strategic plan. Then your vision of the perfect home actually becomes real, room by room.
You stay in the loop the whole way, but you never carry the weight of a hundred small decisions alone. We keep the trades moving, flag issues early, and protect your budget at every turn. So the build feels calm instead of chaotic.
Long Island holds some of the most beautiful new builds in New York. We design luxury homes across the North Shore Gold Coast and out in the Hamptons, and each area has its own feel. A Gold Coast estate calls for grand, formal rooms. A Hamptons home leans into light, texture, and easy coastal living.
Robyn brings casual elegance to every new build. She layers timeless, classic pieces with texture, natural light, and the natural materials that define refined coastal living on Long Island. As a result, your new home feels polished, yet it still feels like a place where you can truly relax.
Because we plan early, these choices become part of the architecture instead of an afterthought. Ceiling details, window walls, built-ins, and lighting all work as one. That is how a brand-new house turns into a home you are proud to show off and happy to live in.
Our scope covers your whole new home, from the first floor plan to the last accessory. Here is what we handle as your new home interior designer, so nothing slips through the cracks during your build.
In-home Interior Design Consultation
New Home Construction Interior Design
Residential Home Remodeling & Home Design
Management of Construction Projects, Budgets, and Schedules
Kitchen and Bath Design
Interior Color Consultation
Concept Development for New, Old, or Renovated Spaces
Design and Build – Space Planning
CAD Drawings, Mood Boards, and 3D Visuals (Floor Plans, Elevations, Cabinetry)
Lighting Selections and Plans
Sourcing and Purchasing of Furniture and Accessories
Window Treatments
Furniture Layout Plans
Collaboration with Contractors and Architects on New Construction
Architectural Detailing and Molding Designs
All Finish and Fabric Selections
Art and Accessories, Placement and Selection
A look at how we reimagine Long Island's most distinctive homes — from black-and-white sitting rooms to timeless estate interiors.
We design new homes all over Long Island, from the North Shore Gold Coast to the South Shore and the Hamptons. That includes Old Westbury, Oyster Bay, Manhasset, Roslyn, Syosset, Woodbury, Huntington, Northport, East Hampton, Southampton, and the towns nearby.
Find Your AreaHire one as early as you can, ideally before construction starts, while the plans can still change. Even at the lot or blueprint stage, we can improve the layout, the flow, and the lighting. The earlier we join, the more we can save you.
We plan the inside of your new construction from the ground up. That covers space planning, furniture layouts, finishes, cabinetry, lighting, and every material selection. After that, we coordinate with your builder all the way to completion.
Yes. We can recommend trusted Long Island architects and builders we have worked with before. Or we can work with the team you have already hired. Either way, everyone stays on the same page.
Every new home is different, so the cost is too. At your first meeting, Robyn reviews the scope, your priorities, and your budget in plain terms. You will know the numbers before any work begins.
We design new homes across Nassau and Suffolk County. Our work runs from the North Shore Gold Coast to the South Shore and the Hamptons, from Oyster Bay to East Hampton.
Yes. Starting early is best, but we often join projects mid-build. Even then, we can still improve the layout, the lighting, the finishes, and the furniture plans.
Call for a free consultation. Nassau & Suffolk County.
25+ Years Experience · 150+ Manufacturer Partners · Full-Service Design Firm
