St. Augustine's residential market spans everything from historic downtown restorations to modern coastal new builds in communities like Nocatee, World Golf Village, and Ponte Vedra Beach. Homeowners investing in these properties expect more than basic decorating; they want a design partner who understands premium materials, refined aesthetics, and the practical demands of a luxury home. Finding the right interior design firm St. Augustine residents can trust with a high-end residential project starts with knowing who specializes in this level of work.
This list highlights six firms that serve the St. Augustine and Northeast Florida market with a focus on upscale residential interiors. Each brings a different strength to the table, from turnkey full-home installations to custom renovation management.
- Trifecta Home Furniture
Location: 160 Registry Blvd., St. Augustine, FL 32092
Specialties: Full home installations, turnkey furnishing, personalized one-on-one design services, exclusive luxury furniture collections, complimentary design consultations
Trifecta Home Furniture has established itself as a go-to interior design firm St. Augustine homeowners, investors, and builders depend on for residential projects of any scale. With over 650 full-home installations completed across the Southeast and most projects finished in 24 hours, the firm is built for clients who need a fully furnished, move-in-ready home on a short timeline. The company's proprietary TRIFECTA line features exclusive fabrics and American-made craftsmanship. Alongside recognized brands like Four Hands, Hooker Furniture, Bernhardt, and Gabby, the showroom provides a depth of inventory that allows the design team to furnish entire homes from in-stock pieces rather than waiting months for manufacturer orders.
Trifecta provides two distinct design experiences: a fully managed turnkey installation for clients who want a hands-off process, and a personalized one-on-one design service that includes in-home consultations and private showroom appointments for homeowners who want to be involved in every decision.
- Interiors by Studio A
Location: St. Augustine, FL (St. Johns County)
Specialties: Full-service residential interior design, kitchen and bath remodeling, custom furnishings
Interiors by Studio A is a full-service interior design and luxury remodeling firm based in St. Augustine. Founded by April O'Brien, the studio manages projects from initial concept through final installation, with particular strength in kitchen and bath renovations as well as whole-home design for new construction. They serve clients throughout St. Johns County and beyond, with a design approach that emphasizes personalized, livable luxury. Their portfolio includes residential work ranging from coastal contemporary to traditional Southern interiors.
- Tara Regan Interiors
Location: St. Augustine, FL
Specialties: Residential interior design, decorating for luxury homes and cottages, award-winning design
With over 20 years of interior design experience and multiple industry awards, Tara Regan is an allied member of ASID and one of the most recognized designers in Northeast Florida. Her firm serves clients across St. Augustine Beach, Ponte Vedra, and the greater Jacksonville area. The studio is known for layered, personalized interiors that balance comfort with sophistication. Tara Regan Interiors has been named Best Interior Firm in the Best of St. Augustine awards and has participated in the Jacksonville Symphony Guild Showhouse.
- Gem and Clay Interior Design
Location: St. Augustine, FL (second office)
Specialties: Full-service interior design, new home builds, historic restorations, residential styling
Gem and Clay operates as a full-service interior design studio with a presence in St. Augustine. The firm handles a wide range of residential projects, from new construction in luxury beachside communities to historic restorations in the city's downtown neighborhoods. Their design approach is rooted in creating personalized spaces that reflect each client's personality and lifestyle, with a portfolio that spans coastal, modern, and traditional aesthetics across Northeast Florida and beyond.
- Cherie Thompson Design & Build, Inc.
Location: St. Augustine, FL
Specialties: Custom residential design, kitchen and bath, commercial interiors, design-build projects
Cherie Thompson holds both an interior design license and a residential contractor license in the State of Florida, along with NCIDQ certification and LEED GA credentials. Her firm provides a design-build approach, handling both the creative and construction sides of residential projects. The studio is known for luxury home environments and cottages, with additional experience in commercial interiors, including healthcare and corporate spaces. The firm's dual licensing allows for streamlined project management from concept through construction.
- Nouveau International Design
Location: Ormond Beach, FL (serving St. Augustine, Jacksonville, Ponte Vedra, Nocatee)
Specialties: Full-service residential and commercial design, design-build with in-house general contractor
Nouveau International Design is a design-build firm led by Rita and Edgar, with an in-house Certified General Contractor and an Architectural Interior Designer on staff. The firm serves clients in St. Augustine, Jacksonville, Ponte Vedra, Nocatee, and Atlantic Beach. Their holistic approach integrates design and construction under one roof, making them a strong option for clients whose projects involve both renovation and interior design. The studio blends timeless aesthetics with modern functionality across residential and commercial projects.
How to Choose the Right Partner for Your Project
The right interior design firm St. Augustine homeowners choose will depend on the scope of the project, the desired timeline, and the level of involvement preferred. For clients who need an entire home furnished quickly and without managing multiple vendors, a firm with in-stock inventory and turnkey installation capabilities will be the strongest fit. For renovation-heavy projects that require construction management, a design-build firm with contractor licensing may be more appropriate. In every case, start with a consultation, review the firm's portfolio, and ask directly about timelines, pricing structure, and what the process looks like from start to finish.