Residential, Commercial Planning, Design, and Production


At Delargent Design we believe in the three R’s – being Respectful, Responsible, and Responsive.


Our talented design team will transform your ideas from concept to reality.


From zoning and building code analysis to expediting services, our experienced team will guide you through all stages of your project.

About Our Firm

Delargent Design is an experienced Merrick, Long Island-based Architecture firm, founded by Marcelo Kohan, RA, AIA in 2011, dedicated to serving all of its clients’ residential and commercial needs, throughout New York, Long Island, and New Jersey. Our team of talented draftsman, expeditors, code consultants, and engineers provide the expertise necessary to run every project from conception to completion. Services can be offered in Spanish if preferred.

Marcelo Kohan, RA, AIA, CEO

Delargent Design Merrick Architect on Long Island

Our Services

Produce creative, cost effective, and functional designs for

Residential or Commercial projects that fit every budget.

New construction

Residential – Single / Multi-Family Buildings

Commercial – Offices / Interior Build Outs

Community – Daycare / Places of Worship


Interior and Exterior Alterations

Finished Basements / Dormers / Bathrooms

Fences / Decks / Sheds

Additions / Renovations

Extensions / Interior Layouts

Patios / Decks / Detached Garages

Builders Paving Plans

Our Portfolio

Below are samples of our work representing the wide range of projects produced by our office.

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Years of Experience

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Projects Completed

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Expert Consultants


Our Expertise

25+ Years of Experience

Marcelo Kohan is a registered Architect licensed in Merrick, New York and New Jersey, and an active member in the Queens and Long Island chapters of the American Institute of Architects (AIA). Marcelo gained his experience in some of the finest Architectural offices in New York including The Spector Group, SLCE Architects and Fakler, Eliason & Porcelli Architects. He participated in the creation of a wide variety of exciting buildings. With each project and each building, Marcelo gained the knowledge needed to forge his own path which led to his opening own firm, Delargent Design Architecture, 2011.


Marcelo was my architect for my urgent care center in Bellerose, NY, and I have had the experience of dealing with different architect when I opened my first center in Hicksville, Long Island. My experience the second time around has certainly been more rewarding.I find Marcelo more dedicated as a professional architect than any of the others I have dealt with. He knows all the rules and regulations so you can avoid the pit falls that can arise when you are seeking DOB approval. With his vast experience, and his attention to detail I was really glad I had Marcelo on my side.I highly reccomend him as an architect for any job you may have. This is coming from someone who knows many architects in the commmunity.

Jagdeep Vyas MD New York Urgent Care | Bellerose, N.Y.

I have personally worked with Marcelo for over two years now on both residential projects and commercial and I can tell you I have not met a more dedicated and professional architect in my many years as an inspector and an energy contractor. If you need to build an extension on your home or have to remove violations from the building department Marcelo can turn your dreams into reality. I've also seen his work on commercial buildings it is truly breathtaking. If you're looking for an architect to help you on a project of any size Marcelo is the person you need to call.

Frank Torre RESNET Energy Smart Contractor | Levittown, N.Y.

Marcelo Kohan is a true gentleman and exceptionally excellent professional! He is very talented, novel in his designs, technically innovative in his understanding and use of materials, and consideration of alternatives. Mr. Kohan’s ethical standards are known to be very high, he is a very collaborative/accessible person, quite dedicated to his profession.

Mark T. Merrick, N.Y.

Marcelo has great experience and is always very professional. We have hired his office numerous times to develop several apartment buildings throughout Queens. He's one of the few architects I've worked with who keeps customer costs in mind. Most importantly he is always reachable, fair in price and diligent in getting things done. I recommend him often!

Greg Raposo Raposo Homes | Queens, N.Y.

We were fortunate to hire Delargent Design Architecture to design, obtain permits and coordinate the building of a new addition to our home and new deck. Marcelo Kohan was exceedingly accommodating, patient, creative and professional. In short, he made it easy. We get many compliments on the work done and couldn’t be happier.”

Steven and Michele M. Bellmore, N.Y.

Marcelo is a wonderful, understanding person with a creative eye that will make your dreams a reality. Been acknowledged by his peers and others for his understanding and ability to deliver to the expectations you seek every time. He can help you!

Bob R. Hicksville, N.Y.

We used Delargent Design as our architects for our home renovation. From the initial phone call to the office and the first meeting at our home, to the home surveying, the preliminary drawings and advice along the way, they always took our calls, and got back to us promptly. Our experience with Marcelo and his team have been top notch. I highly recommend them to anyone in need of a great architectural firm.

Warren T. Freeport, N.Y.

Get in touch

Please contact us regarding your project either via phone, email or by filling out the contact form on this page. 

We look forward to assisting you.
Hablamos Español
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