Skip to Content

For builders + trade partners

She's been on your side of the job site.

Before Z. Domus Designs, Rose Zefferino spent over a decade managing residential construction at scale. She knows what a late design decision costs. She knows how to read a schedule. And she knows what it takes to make a builder look exceptional to their clients.

Let's talk about your next project
See how we work

What makes us different

Most design firms collaborate with builders. Rose was one.

That's not a marketing line. By 25, Rose was managing over $60 million in residential construction projects across the region. She has sat in the pre-construction meeting, coordinated with trades, and watched what happens when design decisions get made too late or without construction context. She built Z. Domus Designs (ZDD) specifically to close that gap.

When you bring ZDD in as your design partner, you get a team who speaks your language, works within your process, and understands that a beautiful design that can't be executed on schedule isn't a design, it's a problem. Our 5,000 sq ft studio in Malvern, PA gives your clients a place to make informed decisions with real materials in front of them, which means fewer callbacks, faster sign-offs, and a smoother build for everyone.

ZDD works with custom home builders and developers across Philly, the Main Line and Bucks County areas, and Coastal New Jersey. If you're building at a level where design quality matters to your clients and your reputation, this is the partnership worth having.

Why Builders Work With Rose

01

Fewer surprises on the job site.

Rose designs with construction sequencing in mind. Material lead times, installation order, coordination with your trades, she factors all of it in. Which means fewer "we need to change that" moments mid-build.

02

Your clients make decisions faster.

The studio brings everything under one roof: tile, flooring, cabinetry, fixtures, finishes. Clients see it, touch it, and decide. No chasing samples across three showrooms. Faster selections mean your schedule holds.

03

She makes your builds look exceptional.

Design that's beautiful and executable. No change orders from wishful thinking, no finishes that look great on a mood board and impossible in the field. The end result reflects well on everyone, including you.

How the Partnership Works

Simple to start. Thorough from there.

  1. We talk about your project. A straightforward conversation about the build, your timeline, your client's expectations, and where design decisions typically create friction for you. No pitch, no proposal until we both know it makes sense.
  2. We establish the scope and timing. Rose reviews the plans, identifies where early design input will have the most impact, and maps the design process to your build schedule, not the other way around.
  3. Your clients come to the studio. We run the selection process in our 5,000 sq ft Malvern studio: a working environment with real materials, finishes, and vignettes that make decisions concrete, not abstract. Your clients feel confident. You get signoffs that hold.
  4. We stay in the loop through installation. Rose and her team coordinates directly with your trades as needed and is available for field questions that touch design. You're not left translating between your build team and an absent designer.
  5. The build finishes on time. Everyone looks good. A completed project your clients love, that came together without the friction that design and construction too often create for each other.

Services for Builders

From pre-construction through the final walkthrough.

Client Selection Services
We manage the entire interior selection process for your homebuyers: finishes, fixtures, flooring, cabinetry, tile. In the studio, with real samples, in an organized process that gets you decisions on time.
Spec Home Design
Rose knows what buyers want and what they'll pay for. Her real estate background combined with construction and design experience means spec selections that photograph well, sell fast, and don't leave money on the table.
Pre-Construction Design Input
Early involvement on floor plan review, architectural detailing, and material coordination before the build starts, so decisions don't become problems after framing is up.
Trade Coordination + Oversight
We work directly alongside your team. ZDD communicates in construction terms, coordinates with your trades on design-related questions, and stays available through installation.

The Studio

5,000 sq ft
Malvern, PA

Most build and design selection processes happen in bits and pieces; a showroom here, a tile vendor there, samples that don't arrive until after a decision has already been made, or you are left to your own sense of visualization to see how things will look together, and then the sequencing and timing of material decisions don’t align with what you thought it would look like. 

The Z. Domus studio consolidates all of it. Flooring, tile, cabinetry, fixtures, hardware, finishes and more…all have real samples, real vignettes, real context for real decisions, in real time.

For your clients, it removes the guesswork. For you, it removes the delays. Selections made in person, in context, tend to hold. Change orders from buyer's remorse drop. Everyone moves faster.

Let's have a conversation

Results

  • Faster selections
  • Fewer change orders
  • Happier homebuyers
  • Cleaner builds

Forward thinking builders who work with Rose and Z Domus view design services not as a COGS expense, but a strategic investment. When thoughtfully integrated into the building process, great design creates a better customer experience, strengths perceived value, and generates returns for the Builder that extend well beyond the initial investment.

Paul Mihrahian, Director of Operations, Lighting by Design | Main Line, PA

A Few Things We Get Asked

That's the norm, not the exception. In most cases, your preferred vendors are ones we've already worked with, so the collaboration is easy. We prioritize working within your existing network… it's better for continuity, scheduling, and warranty coverage. If a specialty finish or custom element calls for someone outside that network, we'll flag it with you before anything moves forward. We're part of your team, and we operate like it.

Rose spent over a decade in construction before she ever opened a design firm. She's managed residential builds from the ground up, coordinated trades, and lived through what happens when design decisions don't account for construction reality. That background means she designs with your schedule, your sequencing, and your process in mind. Most designers collaborate with builders. Rose thinks like one.

As early as possible. Pre-construction is where Rose adds the most value. Floor plan review, architectural detailing, material coordination before the build starts means fewer surprises, fewer change orders, and better outcomes. That said, she can come in at any stage. The earlier, the cleaner. But we'll work with wherever you are.

Rose stays in the loop from selection through installation. She coordinates directly with your trades on design-related questions, communicates in construction terms, and is available for field decisions that touch design intent. You're not left translating between an absent designer and your build team. She's part of your team and operates like it.

The opposite. Rose's studio accelerates the selection process. Your clients make decisions in person, with real materials, in an organized environment designed to get you signoffs that hold. Faster selections mean your schedule holds. And because Rose understands construction timelines, she's never the bottleneck.

The real question is: how can you afford not to? Design decisions made late or without construction knowledge create change orders, delays, and unhappy clients. Those cost more than bringing Rose in from the start. That said, if you prefer not to include design services in your contract, we welcome the opportunity to work directly with your buyers. Rose can support you through initial conversations, and your clients can engage her separately. This is actually our preference. It gives them choice, and it gives you a trusted design partner without the contract complexity.

No. We receive pricing from your vendors or your team directly and present it to clients based on your pricing structure, but all pricing comes from you or the vendor. We don't procure construction finishes, which builders actually prefer because it allows you to maintain your profitability and warranty. We don't process change orders either. That stays with you since it's part of your contract paperwork. We coordinate the design side. You manage the contract side.

Yes. Rose provides detailed documentation for finishes, fixtures, cabinetry, tile, lighting, and any custom elements. Everything your trades need to execute the design correctly. If architectural drawings are required for structural changes, we coordinate with your architect or can bring one in if needed.

Always. Rose works within the parameters you and your client establish. She's transparent about costs, presents options at different price points, and doesn't push clients toward selections that don't make sense for their project. Budget discipline is part of construction discipline. She gets that.

Let's Talk

If you're building something worth designing well, let's talk.

No sales pitch. Just a conversation about your project and whether we're a fit.
Connect with Rose
See our work

72 Lancaster Ave, Suite 1, Malvern, PA

Serving Philadelphia + Main Line + Bucks County, PA + Coastal New Jersey

 

Overlapping letters reading ZDD
Industry Perspective

What a Late Tile Decision Actually Costs

Most renovation surprises aren't bad luck. They're the predictable result of design and construction working as two separate processes instead of one. Rose Zefferino breaks down what changes when your designer understands construction from the inside.

Enter your name and email, and we'll send it straight to your inbox.
This field is for validation purposes and should be left unchanged.
Name(Required)