Interior Design

Integrated Interior Design Aligned with Architectural Vision

William Leggio Architect LLC offers comprehensive interior design services that are fully integrated with architectural planning, ensuring aesthetic and functional harmony across every project. From custom millwork and finish palettes to space planning and lighting layouts, each design is tailored to how clients live, work, and move through their spaces.



Interior environments are more than decoration—they define mood, circulation, and user experience. That’s why the firm approaches interior design with the same precision and contextual understanding that informs its architectural work.

Our Interior Design Process

Interior design is seamlessly woven into the firm’s architectural services or offered independently, depending on client needs. Regardless of scope, each interior project follows a methodical, hands-on process led by the principal architect.

Core Interior Design Services Include:

• Interior space planning
• Fixture and finish selection
• Custom millwork and built-in design
• Lighting design coordination
• Furniture and material specifications
• Interior permit documentation and compliance

Every detail—from floor layout to final trim—is reviewed in coordination with overall project goals, building systems, and NYC code requirements.

Residential Interior Design

For homeowners, William Leggio Architect LLC designs interiors that reflect personal style, support day-to-day function, and enhance architectural flow. Whether it’s a pre-war apartment renovation or a new construction townhouse, interiors are approached with sensitivity to light, proportion, and the existing architectural context.

Examples of residential interior work include:



• Kitchen and bath redesigns
• Full-floor apartment layouts
• Historic brownstone interior restorations
• Custom storage, shelving, and lighting integrations

The goal is to create interiors that feel effortless, elevated, and uniquely suited to the people who inhabit them.

Commercial and Retail Interiors

The firm also provides design services for boutique retail and workplace interiors—environments where space must serve both brand and function. Commercial interiors are crafted to align with operational goals while offering customers and staff a welcoming, efficient experience.



Designs typically include:

• Material schemes aligned with brand identity
• Layouts optimized for foot traffic and workflow
• Lighting design that enhances merchandise or atmosphere
• Integration with base building systems and code

From initial space planning to furniture selection, the process is comprehensive and collaborative.

Collaboration and Customization

Interior design is never off-the-shelf. Every decision—whether a wall color or the placement of a pendant light—is made in direct response to client needs and project context. The team works closely with fabricators, lighting consultants, and material vendors to ensure accuracy and quality in execution.



Design packages are delivered with drawings, elevations, mood boards, and specifications that allow for clear pricing and fabrication. The goal is always to create a space that feels complete, intentional, and lived in—not staged or superficial.

Why Choose Our Interior Design Services?

FAQs About Interior Design Services