Herlong Architects
Herlong Architects + Interiors is a privately held, full-service residential architecture and interior design firm founded in 1986 in Sullivan's Island, SC, specializing in luxury custom coastal homes for high-net-worth individuals throughout the South Carolina Lowcountry and Caribbean.
- Company typePrivate
- Founded1986
- HeadquartersSullivans Island, United States
- Headcount11–50
- GTM typeB2C
- OfferingServices
What Herlong Architects does
Herlong Architects + Interiors is a privately held, full-service residential architecture and interior design firm founded in 1986 by Steve Herlong, AIA, and headquartered on Sullivan's Island, South Carolina, with a secondary by-appointment office in Charleston. The firm specializes in luxury custom coastal homes across the South Carolina Lowcountry barrier islands (Sullivan's Island, Isle of Palms, Kiawah Island, Daniel Island, James Island, Dewees Island) and select Caribbean destinations. Its integrated service platform bundles site analysis and feasibility, conceptual design, 3D modeling and rendering (including photo-realistic renderings and animation), construction documents, builder selection, and design management, alongside in-house interior architecture, owner selections, interior design, interior construction review, and installation services.
The firm operates a project-based professional services model with quote-based fees tied to project scope, complexity, and square footage, targeting high-net-worth individuals seeking primary residences, second homes, or vacation properties along the coast. Many clients are out-of-state buyers building coastal retreats, supported by feasibility study offerings and a wholly-owned real estate subsidiary, The Herlong Group, which provides property identification and acquisition services to feed the architecture pipeline. The team of approximately 11-50 employees cites 225 years of combined experience and holds credentials from Clemson, Virginia Tech, Cornell, University of Virginia, Florida International, and other programs, with senior leadership including Founder and Design Principal Steve Herlong, Managing Principal Jim Henshaw, AIA, and Principal James Selvitelli.
The firm's go-to-market is sales-led and reputation-driven, relying on an extensive award-winning portfolio (including Best in American Living Awards, AIA SC and AIA Charleston awards, Carolopolis preservation awards, Aurora Awards, and Luxe RED), client testimonials, referrals from past clients, builders, and real estate professionals, plus content marketing through a blog and downloadable Custom Home Design Guidebook. The firm has no external funding, no parent company, and operates as an independent boutique practice with multi-year project cycles (6-12 month design phase followed by 16-24 months construction).
Herlong Architects firmographics
Firmographics- Name
- Herlong Architects
- Legal name
- Herlong Architects
- Website
- https://herlongarchitects.com
- Company type
- Private
- Founded year
- 1986
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Herlong Architects + Interiors is a privately held, full-service residential architecture and interior design firm founded in 1986 in Sullivan's Island, SC, specializing in luxury custom coastal homes for high-net-worth individuals throughout the South Carolina Lowcountry and Caribbean.
- Ownership category
- akta.pro rank
Herlong Architects industry classification
Industry- Product category
- Residential Architecture Services
- NAICS
- Architectural Services (54131), Interior Design Services (54141)
- SIC
- Real Estate Agents & Managers (For Others) (6531)
- akta.pro primary industry
- Architectural Design Services (BPAHAKAA)
- akta.pro secondary industries
- Interior Design Services (BPAHAKAB), Luxury Whole-Home Renovation (High-End Finishes & Custom Build) (HSAPAEAI), Residential Luxury / High-End Home Construction (IMAFABAJ)
Keywords
Where Herlong Architects is headquartered
LocationHeadquarters
- HQ city
- Sullivans Island
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Herlong Architects business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Custom Residential Architecture Services: Full-service residential architecture from concept through construction documents and design management. Revenue is generated through project-based fees for custom home design services, typically quoted based on project scope, complexity, and square footage.
- Interior Design Services: In-house interior design services including interior architecture, owner selections, interior design, and construction review. Offered as standalone service or integrated with architecture services.
- Real Estate Services: The Herlong Group provides real estate agent services for property identification and navigation, leveraging architectural expertise to help clients find suitable lots for custom home construction.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Feasibility Study - Initial property evaluation service |
| Other | Multi-year contract | Custom Architecture and Interior Design - Project-based pricing |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels6 records
Herlong Architects product offering
Product offeringCore offering
Herlong Architects + Interiors provides full-service residential architecture and interior design for luxury custom homes, with a particular specialization in coastal and waterfront residences throughout the South Carolina Lowcountry, Southeast US, and the Caribbean. Services integrate exterior architecture with interior design under one firm, spanning feasibility studies, conceptual design, 3D modeling and rendering, construction documents, builder selection, and construction administration for individual high-net-worth homeowners and select collaborating builders.
Product overview
Herlong Architects + Interiors is a full-service residential architecture and interior design firm offering a unified platform of services for luxury custom home design. The core offering combines Residential Architecture Services with Interior Design Services, with ancillary services including The Herlong Group real estate services and Coastal Home Feasibility Studies. The service delivery includes modular phases: Site Analysis/Property Feasibility, Conceptual Design, 3D Modeling & Rendering, Construction Documents, Builder Selection, and Design Management. Interior services encompass Interior Architecture, Owner Selections, Interior Design, Interior Construction Review, and Installation. The firm also provides a Custom Home Design Guidebook as a client resource. Projects span the USA portfolio (including Sullivan’s Island, Kiawah Island, Isle of Palms, James Island, Daniel Island) and Caribbean locations.
Differentiator
Problem solved
Functional benefit
Products and services
- Residential Architecture Services Full-service residential architecture for luxury custom homes with a specialization in coastal, waterfront, marshfront, and barrier island residences, serving high-net-worth homeowners throughout the South Carolina Lowcountry, broader Southeast US, and the Caribbean.
- Interior Design Services In-house interior design services covering interior architecture, owner selections, interior design, interior construction review, and furniture installation for luxury custom home clients.
- Coastal Home Feasibility Study Pre-purchase and pre-design site evaluation for coastal properties, including zoning analysis, regulatory review, site opportunities and challenges, conceptual planning, and preliminary budget considerations for prospective custom home clients.
- The Herlong Group Real Estate Services Real estate services for clients building custom homes, providing property identification, lot evaluation, and navigation of the property purchase process, leveraging the firm's architectural expertise to identify suitable coastal sites.
Quantifiable outcome
- Design and construction timeline: 6-12 months design phase followed by 16-24 months construction
- +1 more outcomes
Companies that use Herlong Architects
Customer profileNamed customers8 records
Segments3 records
Ideal customer profiles3 records
Herlong Architects technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Herlong Architects partnerships and signals
Strategic signalScale indicators4 records
Recent moves5 records
Expansion highlights5 records
Herlong Architects competitors and assessment
Company assessmentDirect peers
- Studio Sofield: New York-based luxury interior design firm comparable to Herlong's interior design arm. Comparable luxury residential clientele, project-based fees, and tightly integrated designer-led practice for high-net-worth custom home projects.
- Beau Clowney Architects: Charleston-based luxury custom residential architecture firm specializing in coastal Lowcountry homes. Most direct local peer to Herlong, with overlapping client base, similar project scale, and parallel design review expertise for Kiawah, Sullivan's Island, and Isle of Palms projects.
- Ken Fulk Studio: Luxury interior design and architecture studio serving high-net-worth residential clients. Comparable integrated design practice combining architecture and interiors under one brand with strong brand recognition in the luxury segment.
- Historical Concepts: Atlanta-based luxury residential architecture, planning, and design-build firm with comparable focus on high-end custom homes in the Southeast. Similar integrated offering across architecture, interiors, and planning for discerning private clients.
- Pursley Dixon Architecture: Charlotte and Charleston-based luxury custom residential architecture firm serving high-net-worth clients in the Carolinas. Comparable business model with project-based fees, integrated design services, and similar focus on bespoke custom homes in affluent Southeastern communities.
- John Andrews Architects: East Coast luxury residential architecture firm with comparable custom home focus, project-based fees, and high-net-worth clientele. Overlapping geographic reach in the Carolinas and similar scale of operation.
Broad incumbents
- Olson Kundig: Larger, internationally recognized residential architecture firm with comparable custom luxury home focus and coastal/site-specific design expertise. Operates at greater scale and broader geography but shares the bespoke, design-led approach for affluent private clients.
- Peter Pennoyer Architects: Premium residential architecture firm with deep specialization in luxury custom homes, including coastal and historic properties. Comparable design excellence reputation and high-net-worth client focus, though more historically rooted in NYC market.
- Ike Kligerman Barkley: Established luxury residential architecture firm with comparable custom home practice serving affluent clients. Larger scale and broader portfolio but overlapping high-end residential design sensibility and project-based fee model.
Regional players
- Cline Architecture: Coastal luxury residential architecture firm in a different regional market (Pacific Northwest). Comparable custom home coastal expertise and high-net-worth client focus, though geographically distinct from Herlong's Southeast positioning.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Herlong Architects social profiles
Digital presenceHerlong Architects financial estimates
Financial estimateRevenue estimate
Valuation estimate
Herlong Architects leadership team
Management profileNumber of profiles
Profiles12 records
Herlong Architects subsidiaries and ownership
Company hierarchySubsidiaries1 record
Herlong Architects funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Herlong Architects M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Herlong Architects
What does Herlong Architects do?
Herlong Architects + Interiors provides full-service residential architecture and interior design for luxury custom homes, with a particular specialization in coastal and waterfront residences throughout the South Carolina Lowcountry, Southeast US, and the Caribbean. Services integrate exterior architecture with interior design under one firm, spanning feasibility studies, conceptual design, 3D modeling and rendering, construction documents, builder selection, and construction administration for individual high-net-worth homeowners and select collaborating builders.
Is Herlong Architects a public or private company?
Herlong Architects is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Herlong Architects founded?
Herlong Architects was founded in 1986. It employs 11 to 50 people.
Where is Herlong Architects based?
Herlong Architects is headquartered in Sullivans Island, United States, in the North America region.
How does Herlong Architects make money?
Three revenue lines are on record. Custom Residential Architecture Services are the primary driver. The others are interior Design Services and real Estate Services.
Who are Herlong Architects's main competitors?
Direct peers on record are Studio Sofield, Beau Clowney Architects, Ken Fulk Studio, Historical Concepts, Pursley Dixon Architecture and John Andrews Architects. Broad incumbents are Olson Kundig, Peter Pennoyer Architects and Ike Kligerman Barkley. Cline Architecture is listed as a regional player.
Does Herlong Architects have an API?
No public API is recorded for Herlong Architects.
What industry is Herlong Architects in?
Herlong Architects's product category is Residential Architecture Services. Its primary akta.pro industry code is BPAHAKAA, Architectural Design Services, with a secondary code of BPAHAKAB, Interior Design Services. Its NAICS code is 54131 and its SIC code is 6531.