Serving Mantoloking, New Jersey
Interior Design Firm in Mantoloking, NJ
On the narrow barrier island where the ocean and Barnegat Bay meet, we design estates that are as resilient as they are refined.
Call (732) 933-4344 Request Consultation

Est. 1996 · ASID & IIDA Members · WBENC Woman-Owned · 500+ Projects · 3M+ Sq Ft Designed
Interior Design in Mantoloking, New Jersey
Mantoloking is barely a mile long and only a few hundred yards wide, yet it consistently ranks among the wealthiest zip codes in New Jersey. There is a reason. On this sliver of barrier island, the Atlantic breaks on one side of Ocean Avenue and Barnegat Bay laps the other, and every house between them commands water in two directions. It is one of the most rarefied addresses on the entire Eastern seaboard, and the people who own here know exactly what they have.
The building stock tells its own story: a mix of grand original shore estates and a new generation of architect-designed homes, many rebuilt to a higher, smarter standard after the island took the brunt of Sandy. That history shapes how everyone here now thinks about a house: beauty first, but engineered to endure. A Mantoloking home has to be as considered underneath as it is above.
Neighborhoods we serve: Ocean Avenue oceanfront · Bayfront estates · Downer Avenue · Herbert Street

Bay Head, NJ
Bay Head Residence
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Holmdel, NJ
Holmdel Residence
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Colts Neck, NJ
Colts Neck Residence
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Luxury Residential Interior Design in Mantoloking
The homes we design in Mantoloking are built for water, light, and entertaining. We plan interiors around the double exposure: sunrise over the ocean, sunset over the bay, orienting great rooms, primary suites, and outdoor living toward the views that make this island worth the premium. Walls of glass, disappearing corners, and generous circulation let the house breathe with the shore.
This is white-glove, whole-home work: chef-grade custom kitchens with scullery pantries, spa primary baths with heated stone floors and freestanding tubs, wet bars and wine storage, bunk rooms for grandchildren, and the millwork, paneling, and built-ins that give a large open house real intention. Because so many of these are second homes built to gather three generations, we design for the biggest weekends of the year, not the quietest.
- Oceanfront & bayfront estates
- New-build interior architecture
- Chef kitchens & sculleries
- Storm-resilient detailing
- Walls of glass & sightlines
- Wine rooms & wet bars
- Multi-generational planning
- Coastal-luxury furnishings
Call (732) 933-4344 Request a Consultation
Commercial Interior Design in Mantoloking
Mantoloking is almost entirely residential, so commercial design in this area tends to sit just off the island: the yacht clubs, private clubs, marinas, and boutique professional offices that serve the barrier-island community from Point Pleasant Beach down through Bay Head. For these, we design interiors with the same discretion and durability our residential clients expect.

Multifamily
Phillips Seaview Towers
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Monmouth County, NJ
Monmouth Medical Center
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The INSABELLADESIGN Difference
On an island this small, everyone knows everyone's contractor, architect, and designer, which means the standard here is unforgiving. Every Mantoloking project runs through founder Beth Insabella Walsh personally. She reads the site, the light, and the two-water exposure herself, and she stays involved from the first sketch to the last cushion. You're not handed to a junior designer; you get the person whose name is on the door.
Nearly thirty years of that consistency is why our shore work travels by word of mouth. In a community where the wrong renovation becomes local lore, that's the trust required for the most significant, and most exposed, homes on this island.
Selected Work
Projects from our portfolio in Ocean County and the surrounding area, chosen for their relevance to Mantoloking homes and buildings.

Bay Head Residence
Bay Head, NJ. A custom coastal home shaped by its landscape, with a refined palette and rooms designed for family life and guests.
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Holmdel Residence
Holmdel, NJ. An ASID Silver Award winning primary suite renovation in a substantial family residence.
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Phillips Seaview Towers
Multifamily. Elevated common areas and resident amenities for a large residential property.
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View Residential Portfolio View Commercial Portfolio
I must say it's been my pleasure to have had the opportunity to work with Beth and her team at Insabella Design. My boss has been a long time client of Beth, over 25 years. And over those many years I was fortunate enough to work with Beth directly. She is extremely attentive and knows exactly what needs to be done. She has designed numerous major renovations and reconstruction projects for us. She has always been a pleasure to work with from the beginning of the projects to the very end. If I ever needed something in a pinch she always makes it happen. I would be completely lost without her and her support in keeping my boss comfortable and happy. Thank you Beth, to you and your team for your excellent services.
30+ Years of Experience
500+ Projects Completed
3M+ Sq Ft Designed
98% Client Satisfaction
How a Project Works
1. Start with a conversation
A consultation at our Little Silver studio or your property. We talk through the space, the scope, how you live or work in it, and what you want the finished project to accomplish. No obligation, and you will always be speaking with Beth.
2. Design and decisions
Space planning, materials, millwork and cabinetry design, lighting, and furnishings developed into one coherent plan, with drawings and documentation your contractor and trades can actually build from.
3. We carry it to the finish
We coordinate the trades, manage orders and timelines, and stay on the project through installation and styling, so you get a completed space rather than a plan left for you to assemble.
About INSABELLADESIGN
- Nearly 30 years of award-winning residential & commercial design (est. 1996)
- ASID & IIDA professional members · WBENC-certified, woman-owned firm
- Full service: detailed space planning and design documentation, custom kitchens & baths, millwork, furnishing, install
- Every project led personally by founder Beth Insabella Walsh
- Trusted by the architects, builders, and trades our clients rely on
- Sourced materials, custom fabrication, and finishes held to an exacting standard
Nearby Areas We Serve
Mantoloking Interior Design FAQs
Do you design both oceanfront and bayfront homes in Mantoloking?
Yes. The two sides of the island behave differently. An Ocean Avenue lot gets direct morning sun and surf sound, while a bayfront lot faces west toward calmer water and long sunset light. We plan the floor plan around whichever exposure your address actually has, rather than applying the same layout to both.
Can you work on new construction and rebuilds?
Absolutely. Much of the island has been rebuilt to a higher standard, and we frequently collaborate with architects and builders from the ground up, shaping interior architecture, millwork, kitchens, and baths before construction rather than decorating around it after.
How do you address storm resilience and salt exposure?
We coordinate with your architect and builder on elevated, moisture-managed, storm-rated construction, then specify salt-tolerant finishes, marine-grade hardware, and durable performance materials, all hidden beneath interiors that look effortless and luxurious.
Do you design for large-scale entertaining?
Constantly. Most of these houses sit quiet for weeks and then fill to capacity for a single August week or a holiday weekend, so we plan for that peak: enough sleeping arrangements for extended family, a mudroom that can absorb wet towels and sandy feet from a crowd, and a kitchen positioned so whoever is cooking can still see the pool and the water.
Is INSABELLADESIGN's founder personally involved?
Yes. Beth walks every Mantoloking lot herself before any plan is drawn, deals directly with your architect and builder rather than through an associate, and is the one who signs off the day furniture and art go in. On an island this small, clients want to know the same person who saw the site is the one who finished the job.
Do you handle full furnishing and art, not just construction finishes?
We're full-service: space planning, custom kitchens and baths, millwork, lighting, furnishings, and art. We can deliver a home fully installed and turnkey, or partner on specific phases.
Start a Project in Mantoloking
Whether you're rebuilding on Ocean Avenue, finishing a new bayfront home, or reimagining an estate you've loved for years, INSABELLADESIGN brings founder-led design and estate-level execution to Mantoloking. Call 732-933-4344 or email info@insabelladesign.com to start the conversation.
(732) 933-4344 info@insabelladesign.com
Serving Mantoloking, Ocean County, and communities throughout New Jersey