Architecture & Interior Design · Long Island, NY
Shaping Spaces
That Inspire
Award winning architecture and interior design for discerning clients across Long Island, the Hamptons, and greater New York. Over 22 years of turning vision into built reality.
Selected Work
Featured Projects
View All ProjectsWhat We Do
Services
Architecture
Ground up residential and commercial design with deep knowledge of Long Island's coastal building codes and zoning requirements.
Interior Design
Full service interiors from concept through installation. Furniture, finishes, lighting, and art curation for cohesive living environments.
Renovations
Thoughtful transformations of existing spaces. Historic preservation, modern additions, and complete reimaginations of homes and commercial properties.
Consulting
Expert guidance on feasibility studies, design direction, material selection, and project planning for clients who need a trusted advisor.
Client Stories
Words From Those We've Built For
Insights
From the Studio
Design Trends
The Return of Natural Stone in Coastal Architecture
How Long Island designers are embracing locally sourced materials for a new generation of beach houses.
Renovation Guide
What to Know Before Renovating a Historic Long Island Home
Navigating preservation requirements, structural considerations, and modern expectations for vintage properties.
Materials
Storm Resilient Design for Coastal Properties
Engineering beauty and durability for homes in flood zones along the South Shore and Hamptons coastline.
Ready to Begin?
Let's Build Something Extraordinary
Every great space starts with a conversation. Tell us about your vision and we'll show you how to bring it to life.
Schedule a ConsultationOur Work
Portfolio
Two decades of architecture and interior design across Long Island's most celebrated addresses. Each project tells a story of collaboration, craft, and vision realized.
Transformations
Before & After
Garden City Revival: Full interior transformation of a 1920s Colonial
Your Project Starts Here
See Your Vision Take Shape
We'd love to hear what you're imagining. Reach out for a complimentary initial consultation.
Get in TouchOur Expertise
Services
Comprehensive design solutions from first concept through final installation. Every project receives the full depth of our studio's knowledge and passion.
01
Architecture
From waterfront estates to village mixed use buildings, we design structures that respond to their context, honor their surroundings, and exceed expectations. Our deep familiarity with Long Island's building codes, zoning variances, and coastal regulations means fewer delays and a smoother path from concept to completion.
We specialize in storm and flood resilient construction for coastal properties, a critical consideration for South Shore and Hamptons builds that many firms overlook.
02
Interior Design
Our interiors team creates spaces that feel both elevated and deeply personal. We handle every layer of the design, from spatial planning and custom millwork to furniture sourcing, textile selection, lighting design, and art curation.
Whether you're looking for warm minimalism, collected elegance, or bold contemporary statements, we develop a design language unique to each client and each home.
03
Renovations
Long Island is full of homes with extraordinary bones. We bring out their potential through renovations that balance respect for original character with the demands of modern living. Our trusted network of local contractors ensures quality execution and realistic timelines.
From gut renovations of mid century ranches to sensitive additions on historic North Shore estates, we approach every transformation with the same rigor as new construction.
04
Design Consulting
Not every project requires full service engagement. Our consulting packages offer expert guidance at key decision points, whether you need help with design direction, material selection, contractor vetting, or feasibility analysis for a potential property purchase.
We also offer virtual design services for clients outside our immediate area, bringing the Harlow & Stone approach to projects beyond Long Island.
Design Packages
Invest in Your Space
Essential
Design Consultation
$750 / session
2 hour on site consultation
Design direction & mood board
Material & color recommendations
Prioritized action plan
Follow up summary document
Most Popular
Room Transformation
$5,500 / room
Full room design concept
3D renderings & floor plan
Custom furniture selections
Material & finish specifications
Vendor coordination
2 revision rounds included
Premium
Full Home Design
Custom pricing
Complete home design
Architecture & interiors
Project management
Contractor coordination
Procurement & installation
Ongoing support
Free Resources
Start Planning Today
Free Download
Renovation Planning Checklist
Everything you need to consider before starting a major renovation on Long Island. Permits, budgets, timelines, and contractor questions.
Download PDFFree Download
Mood Board Template Kit
Our studio's process for capturing design intent. Includes templates for material palettes, color stories, and spatial concepts.
Download KitGift Available
Design Consultation Gift Certificate
Give the gift of great design. Perfect for homeowners planning a renovation, new build, or interior refresh.
Purchase GiftOur Story
The Studio
Where architecture meets intention. A team of designers, thinkers, and makers committed to shaping the built environment of Long Island with care and purpose.
Founded 2004
Building for the Island We Call Home
Harlow & Stone was founded with a clear belief: that great architecture grows from a deep understanding of place. Long Island is where we live, where we raise our families, and where we've spent over two decades learning every nuance of its landscapes, communities, and building traditions.
Our studio operates at the intersection of contemporary design thinking and local knowledge. We understand the light that comes off the Sound, the way salt air weathers materials, the rhythm of village life, and the expectations of clients making significant investments in their homes and businesses.
We are not a satellite office of a Manhattan firm. We are here. Available, invested, and committed to the long term relationships that produce the best work.
Context First
Every project responds to its site, its climate, and its community. We don't import trends. We design from the ground up, literally.
Rigorous Simplicity
Good design removes the unnecessary. We pursue clarity in form, honesty in materials, and spaces that feel effortless even when the details are deeply considered.
Built to Last
Coastal environments demand durability. We specify materials and systems that perform beautifully over decades, not just on move in day.
The Team
The People Behind the Work
Elena Harlow
Founding Principal, Architecture
AIA, LEED AP
David Stone
Founding Principal, Interiors
NCIDQ, ASID
Maya Chen
Senior Architect
AIA, M.Arch Yale
James Okafor
Design Director
NCIDQ, M.Des Pratt
We'd Love to Hear Your Story
Every project begins with listening. Tell us what you're envisioning and we'll share how our studio can help.
Start the ConversationHow We Work
Our Process
A clear, collaborative approach that keeps you informed and involved at every stage. No surprises, no guesswork, just thoughtful progress toward your vision.
Phase 01
Discovery & Vision
We begin with a deep conversation about how you live, what you value, and what you're hoping to achieve. We visit the site, study the context, review any existing conditions, and begin shaping a shared vision for the project.
Typical duration: 2 to 4 weeks
Phase 02
Concept Design
Using sketches, mood boards, 3D renderings, and preliminary floor plans, we explore design directions that respond to your goals and the site's potential. This is where the big ideas take shape and we align on direction before investing in detailed documentation.
Typical duration: 4 to 8 weeks
Phase 03
Design Development
The approved concept is refined into detailed drawings, material specifications, and technical documentation. We coordinate with structural engineers, MEP consultants, and landscape designers to ensure every system works in harmony.
Typical duration: 6 to 12 weeks
Phase 04
Permitting & Approvals
We navigate the full permitting process with local municipalities, including zoning board appearances when needed. Our familiarity with Long Island's regulatory landscape helps avoid common delays and keeps your project on schedule.
Typical duration: 4 to 10 weeks
Phase 05
Construction & Installation
During construction, we remain your advocate. Regular site visits, coordination with contractors, and careful oversight of material installations ensure the design intent is carried through to the finished product.
Typical duration: varies by scope
Phase 06
Reveal & Beyond
The final walkthrough is one of our favorite moments. We ensure every detail meets the standard before handoff, coordinate professional photography, and remain available for any adjustments as you settle into your new space.
Your project is never truly finished to us
Ready to Start the Journey?
Your project begins with a simple conversation. No obligation, no pressure, just two parties exploring what's possible.
Book Your Discovery CallGet in Touch
Contact
Whether you have a fully formed vision or just the seed of an idea, we'd love to hear from you. Every great project starts with a conversation.
Studio
42 Harbor Lane, Suite 200
Cold Spring Harbor, NY 11724
Phone
Hours
Monday through Friday, 9:00 AM to 6:00 PM
Saturday consultations by appointment
Service Area
The Hamptons, North Shore, South Shore, Garden City, Fire Island, and all of Long Island. Virtual design services available nationwide.
Recognition
Press & Awards
Selected features, publications, and professional recognitions spanning two decades of design practice on Long Island.
Awards
Recognized Excellence
2025
Best Residential Design, Northeast
AIA New York Chapter
2024
Interior Design Excellence Award
ASID National
2024
Best of Houzz Design
Houzz
2023
Sustainable Design Award
LEED Council
2023
Best Renovation Over $500K
Long Island Builders Institute
2022
Emerging Firm of the Decade
Architectural Record
Press
Featured In
Architectural Digest
"The 10 Most Exciting Firms Reshaping Long Island's Coastline"
March 2025
Dwell
"Inside the Dune House: Where Modernism Meets the Atlantic"
January 2025
Hamptons Magazine
"Local Architects Who Rival the City's Best"
Summer 2024
Interior Design
"Material Honesty: How Harlow & Stone Lets Craft Lead"
November 2024