Serving Allentown, New Jersey
Interior Design Firm in Allentown, NJ
We update older houses and recent custom homes with restraint: thoughtful plans, durable materials, and furnishings that make daily life easier without erasing character. The first consultation clarifies scope, priorities, and next steps so you can decide with confidence. Primary CTA: Request a Design Consultation Secondary CTA: Call 732.933.4344
Call (732) 933-4344 Request Consultation

Est. 1996 · ASID & IIDA Members · WBENC Woman-Owned · 500+ Projects · 3M+ Sq Ft Designed
Interior Design in Allentown, New Jersey
Allentown’s small-town, rural-edge setting calls for work that respects historic scale and the layered history of older houses while bringing them forward for contemporary family living. We focus on measured interventions: reworking floor plans to improve circulation, adding discreet storage, and choosing materials that read as honest and enduring rather than trend-driven. The goal is a house that feels like itself and also works better every day.
Many clients here have a mix of original details and later additions. We look for the points of connection—how a kitchen addition meets a farmhouse wing, where a mudroom can become a family hub, how new lighting and millwork can reconcile old proportions with modern use. Our approach balances preservation with practical upgrades so each decision protects character and increases function.
Neighborhoods we serve: Historic downtown Allentown · Main Street · Upper Freehold Township estates · Cream Ridge / horse country border

Colts Neck, NJ
Colts Neck Residence, Billiard and Theatre
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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 Allentown
Historic-home updates and additions begin with respect for original geometry, trim, and proportions. We start by understanding what a family needs now—storage, circulation, more daylight, durable work surfaces—and then design interventions that sit quietly within the existing composition. Kitchens and baths become opportunities to make daily routines simpler: layouts that streamline cooking and cleanup, built-in storage that reduces clutter, and material palettes chosen for wear and longevity.
Custom furnishings, mudrooms, and integrated storage are central to how we connect old and new. Rather than applying a single aesthetic, we develop custom millwork and furniture that bridge styles—matching sightlines and scale, choosing hardware and finishes in dialogue with original elements, and specifying surfaces that stand up to family life. Addition work is planned to minimize disruption and protect character, with construction documents detailed enough for contractors to build accurately.
- Historic home renovation
- Victorian & colonial interiors
- Country & horse-country homes
- Custom kitchens & baths
- Paneled studies & wine rooms
- Architectural millwork
- Lighting & furnishings
- Project management
Call (732) 933-4344 Request a Consultation
Commercial Interior Design in Allentown
While our practice is residential-led, we also design small professional and hospitality spaces that need a durable, welcoming identity. For local offices and boutique hospitality projects, we prioritize materials and layouts that make daily maintenance predictable, support clear circulation, and present a restrained, human-scaled look that complements nearby homes rather than competing with them.

Freehold, NJ
Monmouth County Prosecutors Office
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Monmouth County, NJ
Monmouth County Child Advocacy Center
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Healthcare
University Pain & Spine Center
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The INSABELLADESIGN Difference
Projects are principal-led by Beth Insabella Walsh, ASID, IIDA, CID, whose background informs both the conceptual direction and the technical documentation. Since 1996 our team has completed more than 500 projects and designed over three million square feet; we bring that depth of experience to every decision, from millwork details to procurement schedules. We are a WBENC-certified woman-owned firm and operate as a full-service studio—planning through installation—so one team manages design intent, drawings, and on-site coordination.
The approach rests on a practical-luxury mindset: attention to material performance and construction detailing without showing off. We prepare clear construction documents, coordinate with engineers and contractors, and oversee installation so the outcome matches the plan. Our furnishing and material selections are chosen to age gracefully and to make daily life easier, not to create unnecessary maintenance burdens.
Selected Work
Projects from our portfolio in Monmouth County and the surrounding area, chosen for their relevance to Allentown homes and buildings.

Colts Neck Residence, Billiard and Theatre
Colts Neck, NJ. An entertainment wing with a black light hallway of vintage posters and a red themed billiard room.
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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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Monmouth County Prosecutors Office
Freehold, NJ. A 129,000 square foot civic facility housing multiple divisions, with specialized and public facing spaces.
View project
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
Part of our Monmouth County interior design service area.
Allentown Interior Design FAQs
Are you interior designers or interior decorators?
We are a full-service design firm. That means space planning and design documentation, custom kitchens and baths, millwork, lighting, furnishing and installation. Decoration is part of the work, not the whole of it.
What does full service include?
Drawings, custom millwork and casework, lighting design, finishes, furnishings, procurement, trade coordination and installation. We coordinate the trades and manage the schedule.
Have you worked in this area?
Yes. Holmdel Residence, Colts Neck Residence and Monmouth Medical Center are in Monmouth County. The studio is in Little Silver and we work across New Jersey, New York, Connecticut and Florida.
Do you design commercial spaces as well as homes?
Yes. Alongside residential work we design medical, corporate, government, retail and multifamily interiors. Work in Monmouth County includes Monmouth Medical Center, Monmouth County Prosecutors Office and Monmouth County Child Advocacy Center.
Do you take single rooms, or only whole homes?
Both. Scope runs from a single room to a full renovation or new build.
How do your fees work?
It depends on scope, from a single room to a full renovation or new build. After an initial consultation we provide a detailed proposal.
Who leads the project?
Beth Insabella Walsh, the firm’s founder, leads every project.
Start a Project in Allentown
If you own a historic or newer country house and want updates that honor character while improving daily life, let’s talk. Call 732.933.4344 or email info@insabelladesign.com to request a design consultation.
(732) 933-4344 info@insabelladesign.com
Serving Allentown, Monmouth County, and communities throughout New Jersey