Builder-trained.
Designer-led.
Design that understands how it gets built.
Most designers know what looks beautiful
Rose Zefferino knows how it gets built.
Z. Domus Designs (ZDD) brings over two decades of construction experience, from project management to production, to every interior design engagement. That expertise carries through from construction-phase selections to the custom furnishings and styling that complete a home. It means fewer surprises, smarter material decisions, and a process that works with your build schedule, not against it.
Whether you’re a custom home builder in need of a design partner who speaks your language, or a discerning homeowner in Philly, on the Main Line and Bucks County PA, or Coastal New Jersey who wants someone who understands that today’s decisions shape how you’ll live for years...ZDD delivers clarity, craft, and zero surprises.
At the center of it all: a 5,000 sq ft design studio in Malvern, PA, where builders, homeowners, and trade partners come together to work with real materials, real finishes, and real solutions. Nothing goes into the ground or on the wall until it's been seen, touched, and confirmed here first.
For Homeowners
Design decisions that make sense… before and after they’re made.
You’re not just picking finishes. You’re making choices that affect how your home functions, feels, and holds its value for years. Rose walks you through what’s actually happening in the build so every decision is informed, confident, and yours. No guesswork. No regret.
For Builders
A design partner who’s been on your side of the job site.
Rose spent over a decade in construction before she ever opened a design firm. She knows your schedules, your sequencing, and what a late material decision costs. Your clients get a seamless selection experience. You get fewer change orders and a design partner who makes your builds look exceptional.
The Studio
5,000 square feet of materials, finishes, furniture, tile, flooring, cabinetry, and lighting…all in one place, all available to touch, compare, and visualize before anything is ordered. Our studio isn’t a showroom. It’s a working environment where builders, homeowners, and trade partners make better decisions, faster.
Every other firm sends you out to search.
ZDD brings it all in.
Come into my space so we can help you design yours.
Rose ZefferinoCome into my space so we can help you design yours.
Rose ZefferinoServices
Full-service design, from pre-construction through move-in.
5,000
20+
+ design
Philly +
Main Line +
Bucks County +
NJ Coast
Rose Zefferino
CEO + Principal Designer
She’s not just a designer who works with builders. She was one.
By 25, Rose was managing over $60 million in residential construction. That background didn’t just inform her eye, it shaped how she thinks about every project. She built Z. Domus Designs around the belief that beautiful spaces and sound construction aren’t competing priorities. They’re the same thing, done right.
Working with Rose changed how I think about bringing a designer into a project. She understood our schedule from day one, never put us in a position where a design decision became a construction problem, and her studio made the selection process with our clients genuinely painless. Our builds run cleaner. That’s what matters.
Luke Attanasi, Owner, Rockwell Custom | Main Line, PALet’s talk
The first conversation is always worth having.
Building, renovating, or ready for a change?
Come into the studio or start with a call. We’ll walk you through what’s possible, what makes sense for your project, and how we work so you can make a confident decision.
Looking for a design partner on your next project?
Tell us about your build. We’ll show you how we work and whether it’s a fit. No pressure, no pitch, just a real conversation between people who speak the same language.
