Residential Architecture + Interior
Design in Charleston, SC
Herlong Architects
+ Interiors
Herlong Architects + Interiors is a full-service architecture and interior design firm in Charleston, South Carolina, specializing in luxury custom homes, coastal architecture, and high-end residential design throughout the Lowcountry.
For over 40 years, our firm has designed distinctive homes shaped by their setting—whether along the Charleston Harbor, barrier islands, marshfront properties, or coastal destinations throughout the Southeast and Caribbean. Each residence is thoughtfully crafted to respond to its site, capturing views, breezes, and the natural character of the coastal landscape.
Our collaborative team of residential architects and interior designers works closely with each client to create homes that are both deeply personal and architecturally enduring. From initial concept through interior design and detailing, we design residences that balance timeless architecture, coastal resilience, and refined coastal living.
With 225 years of combined experience designing custom homes, Herlong Architects + Interiors is trusted by discerning clients seeking a home that is both exceptional in design and perfectly suited to life on the coast.
Our Work
Homes, Which Tell
the
Story of Your Life
We don't just design homes.
We create stories. We create a seamless dialogue
throughout your home so that life flows effortlessly — in your rhythm.
How We Work
Our Approach
Just as the specific site of your custom home is integral to the design process, so too are your home's interiors.
At Herlong Architects + Interiors, we believe a collaborative approach between the owner, residential architect, and interior designer is essential for achieving a seamless blend of form, function, and style. This creates a truly timeless home and makes the design and building process enjoyable. By offering residential architecture and interior design services under one roof, we provide the perfect opportunity to bring your vision to life. Your story, infused with your character and your style.
Since 1986
Begin Your Project
Let's embark on this journey together. Get ready to design a custom home that doesn't just stand out. It belongs.
Begin Your Project
Coastal Residential
Architecture FAQ's
Questions, Answered
When should I involve an architect if I am considering buying a waterfront lot?
It is best to involve an architect before purchasing a property. Coastal sites often have flood elevation requirements, setbacks, tree regulations, and design review approvals that affect what can be built. We frequently help clients evaluate lots so they understand the opportunities and limitations before committing to a purchase.
How does Herlong Architects design homes that meet flood and hurricane requirements without sacrificing aesthetics?
Coastal homes must meet strict structural and elevation requirements, but thoughtful design allows these constraints to become opportunities. By carefully planning floor heights, foundation systems, roof forms, and outdoor spaces, we create homes that feel natural to the landscape while meeting all coastal building regulations.
Can Herlong Architects help assemble the right team for a custom home project?
Yes. One of the most important decisions in a custom home project is selecting the right builder and consultants. We often assist clients with builder interviews, conceptual budgeting, and early coordination so the project team is aligned from the beginning.
How long does it take to design and build a custom coastal home?
Every project is different, but most custom coastal homes require 6-12 months of design followed by 16-24 months of construction. Projects located in communities with architectural review boards or complex site conditions may require additional time for approvals.
How do you design homes to maximize views and outdoor living?
Waterfront homes are designed to take advantage of their surroundings. We carefully study the orientation of the site, prevailing breezes, sun angles, and sightlines to position rooms, porches, and outdoor spaces where they will be most enjoyable throughout the year.
Does Herlong Architects work with clients who live out of state?
Yes. Many of our clients live outside Charleston and are building second homes or vacation properties along the coast. Our process is designed to work smoothly with remote clients, with regular meetings, detailed presentations, and close coordination with builders and consultants.
Do coastal communities require design approvals before construction?
Many coastal communities, including those in the Charleston area and surrounding islands, require approval from architectural review boards before construction can begin. We guide our clients through this process, preparing drawings and presentations that meet the requirements while maintaining the integrity of the design.
What are the benefits of hiring a firm that provides both architecture and interior design services?
Designing architecture and interiors together creates a more cohesive home. When both disciplines are developed at the same time, the proportions, materials, lighting, and details work together seamlessly, resulting in a residence that feels refined and complete.
Can you design homes in communities with strict architectural guidelines?
Yes. We have extensive experience designing homes in communities with detailed architectural standards. Understanding these guidelines early in the design process allows us to create homes that meet requirements while still feeling unique and tailored to the client.
What makes an experienced coastal architect important for a luxury home?
Coastal homes present unique challenges that require experience and careful planning. An architect familiar with waterfront properties understands how to design for climate, regulations, and long-term durability while creating a home that feels timeless, comfortable, and appropriate to its setting.
In Their Words
Client testimonials
"Our experience with Herlong Architects was great, they listened to a very general description of what we like and how we wanted to live and designed a home that was better than we could have ever imagined, it was like they read our minds. Everyone and every step of the process was a pleasure all the way through to the day we moved in. I recommend them highly."
W. Westmoreland
"You are all wonderful people at Herlong Architects, and we could not be happier with our beautiful home design and Cintra's wonderful touch in colors, fabrics, stone, and materials. We get compliments every week on our beach cottage. You have made our lives better through your creative genius."
D. Kirby
"From the very first moment that we met Steve and his staff we knew that our search was over. Steve Herlong is extremely talented and has many years of experience. He is deliberate and thoughtful and we knew that we had his undivided attention every time we met with him. He brought our ideas to life and he and his team created the house that we only imagined in our minds."
Frank Addington — Charleston, SC
"From walking the site, to understanding our needs, and the 'bedside manner' they had in the many frequent touchpoints along the way, Steve and his team developed and delivered an amazing design that captured the unique characteristics of our site, and the eye of many a passerby. The outcome has been nothing but a joy."
Mike Carter — Sullivan's Island, SC
"Steve and his staff designed a house that went above and beyond my wildest expectations. I am as happy with it today as I was the day we moved in. It was a great pleasure to work with Herlong and Associates."
Kaye Smith — Sullivan's Island, SC
"Best architectural firm in the Lowcountry!"
Kathryn Richardson — James Island, SC
"I have always found their entire organization to be very professional, creative, and responsive to an owner's desires or to the builder's needs. Their interior design team beautifully complements the talents of the architectural group. Their attention to detail is impeccable. I highly recommend Herlong & Associates to anyone planning to build a new custom home or to upgrade an existing home."
Steve Kendrick — Daniel Island, SC
"Herlong's designs have always been logical and well conceived, in addition to incredibly attractive and architecturally appropriate. The sign of a great architectural firm is one whose designs are enjoyably challenging, are rooted in functionality and are exciting to photograph once built. This is always the case with this fine outfit."
Rob Crawford — Mount Pleasant, SC
Recognition
Awards
- Luxe RED Award 2022 — Southeast Regional, Exterior Architecture
- AIA Charleston Merit Award 2022
- Best in American Living Award (BALA) 2019 — Historic Preservation / Restoration
- AIA SC 2019 — Honor Award for Excellence in Historic Preservation
- Carolopolis Award for Excellence in Historic Preservation 2018, Preservation Society of Charleston
- Best in American Living Award (BALA) 2013 — Silver Award, Best One-of-a-Kind Custom Home
- AIA SC 2009 Robert Mills Residential Design Award