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  • Company
    • About
    • Our Team
    • Our History
  • Our Properties
    • All Properties
    • Coming Soon
  • Available Space
    • Our Listings
    • Request Available Property
  • Tenant Hub
    • Tenant Portal
    • Featured Tenants
    • Tenant Testimonials
  • In the News
  • Contact Us
    • Inquire
    • Lease Application

We are Long Island’s premier developer, owner, and manager of industrial, commercial, and office buildings.

our properties

Our tenants range from national & international companies to Long Island's backbone of small businesses.

available listings

Over 40 Years of Experience & More Than 1 Million Square Feet of Rented Commercial Space

Available Listings
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Suffolk County’s premier developer, owner and manager of industrial, commercial and office buildings. From Long Island to everywhere.

our company

Turnkey occupancy, flexible lease terms and fixed monthly rent. We serve our local, national and international client base like neighbors.

Featured Properties

104 Lake Avenue South
Nesconset, NY 11767
  • Under Construction - Coming April 2022
  • New Construction, Modern Industrial Building
  • Units sizes: 1,961/2, 405/2, 738 SF
Learn More
2805 Veterans Highway
Ronkonkoma, NY 11779
  • Fully renovated move-in ready office suites
  • Common areas, private bathrooms & kitchens
  • Located within MacArthur Airport’s business corridor
  • Modern alternative to high rise office plazas
Learn More
46-48 Windsor Place
Central Islip, NY 11722
  • New construction turnkey industrial units
  • Strategically located off Veterans Highway - minutes from the L.I.E. (Exit 57), LIRR, & Sunrise Highway
  • 24/7 access, doorstep parking & LED exterior lighting
Learn More
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Tenant Testimonials

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"One property in particular stood out - a brand new space with opportunity to be the first lessee. We loved the balance of office and warehouse, perfect for a current workshop to eventually transition into a meeting space for our clients. The price was competitive, the proximity to amenities convenient, and the sales team was prompt, courteous, and detail oriented. Each team member we worked with was consistent in communication, eager to clarify questions, and available as needed to assist us in the process. The info packet was modern and extensive. 3D mapping and tours of the spaces really helped us streamline our search to efficiently hone in on what we were looking for. The tenant portal is also a big plus. It allows us to work around our hours and not have to wait for checks to clear. We would absolutely recommend O’Shea Properties. From start to finish our process with O'Shea has been efficient, transparent, and professional. Perfect for tenants of all experience levels."

Nectar & Bloom LLC/Lisa Reichenberger

"Space, distance, and low fees – are the main reason I chose O’Shea Properties. The professionalism, quick responses to all inquiries, politeness, and patience of the ladies I communicated with were highly appreciated. I will recommend O’Shea Properties for the professional and respectful services they provide to their client."

Beverage Services of New York/Milagro Perla

"Great newly constructed building! Excellent staff, ready to cater to all their tenant needs."

Merchandise Haven Inc./Muntazir Jamal

“I was recommended by a friend who was renting from O'Shea for years. He spoke very highly of the properties, and how well the facilities where maintained. The rent is reasonable, the place always looks appealing to outside vendors. But most of all, the property management is quick to respond with any of our needs. I have been in my unit for years; and hope to continue our relationship in the future. I feel that my business is striving at this current location. And turn-over of other tenants are few and far between. A great testament to the O'Shea Group!”

Lito’s Customs/Raul Rivera

“Reputation, competitive lease and rent are the reasons I chose O’Shea Properties. The grounds at our facility are always kept neat and clean, and the staff is responsive and courteous. I would recommend O’Shea Properties because of the competitive rent, well maintained properties and professional staff.”

Air Master LLC/John Castro

“O’Shea represents a lot of the real estate, inventory near the airport which is where we needed additional space. They are fair and have honest practices, accommodating and great people to work with! I would absolutely recommend O’Shea Properties.”

Emtec Consultants Professional Engineers, PLLC/Anthony Musumeci

“Our O’Shea rental properties provide easy access for commercial traffic, clean attractive facilities, right-sized rental space (not too much, not too little), and reasonable rental rates. O’Shea Properties offer good service, friendly interaction, and business-friendly rental/property management. I recommend O’Shea Properties to anyone considering rental of quality office and work/warehouse space from a business-friendly management company, at fair rental rates, suitable for customer service visits and day-to-day business activities.”

Biocogent, LLC/Joseph Ceccoli

“We chose O’Shea Properties originally because of their availability and space size. We have been renting from them approximately 10 years and upgraded our rent space during that time. O’Shea offers clean lots and are well maintained compared to other properties I have seen. I would recommend O’Shea Properties, the staff is friendly, accommodating and always willing to work with us on any issues that arise. They offer numerous locations and offices/warehouse spaces and sizes that are clean and well maintained.”

Sparkle Pool Services/Natalie Schlesinger

“We chose this property because it’s the right location and had the right office to shop ratio. We love that O’Shea is a family owned business just like ours. We would definitely recommend O’Shea Properties; they have a great selection of properties so you can find the perfect space for your business.”

L & M Mechanical Services Inc./Lori Gaskin

“We are long term tenants. The property is well maintained, clean buildings, well-lit properly at night, clutter-free parking, easy access for clients. Neighboring tenants are respectful. O’Shea has good responses to building systems complaints. We believe that it is more cost effective to lease then owning your own property, especially on Long Island.”

Hayden Karn Consulting Inc./Bill Hayden

“The condition of the property is immaculate, and the personnel are incredibly helpful. (The professionalism and the prompt attention to any problems that arise). I also appreciate that all the maintenance and snow removal is included in the rent. I would certainly recommend O’Shea Properties. Having leased space from other landlords prior, I can without a doubt say this is a class act."

Ready Home Service LLC/John Fealy

“Local to our area and the location was perfect for the business we are in. We appreciate the quick responses from your (O’Shea Properties) personnel whenever we have a question or if there is a problem we need resolved. I would recommend O’Shea Properties because you have multiple areas available and the rent is priced well for each area.”

Campbell Consulting Services, Inc./Maureen Campbell

“We were looking for affordable warehouse space and the location we found was convenient. When we knew we would be working with people from an O’Shea property, it would be a good experience, a fair price and a lease we could agree on. When we reached out to O’Shea Properties, our inquiry was responded to in an acceptable amount of time. The rent is reasonable, properties are always neat and clean. We feel they are an accessible and cooperative landlord management that have integrity and fairness. We would recommend O’Shea Properties because they are easy to work with.

Sunrise Business Systems, Inc/Mark, Lisa & Karen Arthus

“We have been at the same location for over 28 years - that speaks for itself. The office staff is incredible, their knowledge and kindness are always over the top! I would recommend O’Shea because they are a fair and reasonable company that is always ready to listen to requests and concerns.

ShortStop Inn/Gerard Turnier

“I chose O’Shea properties because of their experience and professionalism. The staff’s communication is good and anytime you have an issue or concern, they address it immediately. Joanne is our favorite! The rent price and lease agreements are fair also. I would absolutely recommend O’Shea because when you have a great landlord, that’s one less thing you have to worry about when you are a business owner."

Tattoo Maven LLC/Edwon Oquendo

“We chose O’Shea Properties because of the cost of rent, location and maintenance of the units. The most value to me is the friendliness of everyone at the office. No matter how you want to reach someone, either by phone or personally at the office, all the staff is ready to help with any problem that you may have in a timely manner. I without hesitation would recommend O’Shea Properties, I have been renting the same unit since 1995 and not once have I had any problems. My sincere thanks to everyone that works there.”

Inpol, Inc./Stan Stromski

“We chose O’Shea Properties because of the location, they had several listings in the area that I was looking for. After 23 years in the same location I lost my lease, so I wanted to stay local. I had also rented from O’Shea 25 years ago when I first started my business and it was a pleasant experience. I would recommend O’Shea because the staff is professional and friendly, and I like the way they upkeep their properties.”

Champion Glass, Inc./Greg Galano

4155 Veterans Highway
Suite 13
Ronkonkoma, NY 11779
Phone: 631.218.8318
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