Mount Sinai, NY Commercial real estate for Rent & Lease

Updated: Jun 2

Multi-Tenant Office Building

Portview Building - 28 N. Country Road, Mount Sinai, NY 11766

$14 SF/Yr

Multi‑tenant office building built in 1988
Modified gross leases include gas and water; utilities are $3.50 psf
Fiber optic data cable and 24/7 tenant access with security camera system
Elevator service to all floors
On‑site parking with good tenant signage

View details

Updated: Nov 24, 2025

Retail and Medical Office Space

2 Myrtle St, Mt Sinai, NY

Contact for pricing

42,800 sqft

Approved Planned Development District (PDD) Master Plan allows for diverse uses.
High‑traffic location on four‑lane Route 25A, near Route 112.
Development includes a new 4‑way signalized intersection at 25A and Myrtle Street.
Potential for 15,400 sf of retail space suitable for a market/grocery anchor.
Divisible 5,000 SF pad site with drive‑through potential.

View details

Mount Sinai Retail Space Available

5505-5507 Nesconset Highway, Mount Sinai, NY

$22 SF/Yr

2,500 sqft · $4,731/Mo

Retail space in large shopping center, Mount Sinai, NY.

View details

Turn Any Listing Into an Investment Snapshot Owner equity, real caprate, demand score for every listing. Go To Analytics Center

Divisible Pad Site For Rent

9 Myrtle St, Mt Sinai, NY

Contact for pricing

5,000 sqft

Divisible pad site with drive-through available for rent.

View details

Mount Sinai Office Space Available

28 N Country Rd, Mount Sinai, NY 11766

$14 SF/Yr

Office space for rent near Port Jefferson Village.

View details

Mount Sinai Retail Space

21-51 New York 25A, Mount Sinai, NY

Contact for pricing

2,400 sqft

Retail space available for rent in Mount Sinai, New York.

View details

Retail and Medical Development Opportunity

12 Myrtle St, Mount Sinai, NY 11766

Contact for pricing

88,200 sqft

Land available for retail, medical office, and luxury rentals.

View details

Based on your search, we've compiled 15 Potential Opportunities for your consideration. Besides 7 Active listings in Mount Sinai, NY, we suggest exploring alternatives. Consider Similar 4 Spaces in Nearby Cities, and Similar 4 Properties for Sales.

Commercial real estate for Lease in Nearby Cities

Here are 4 Similar Spaces we found in Nearby Locations for your consideration.

Office/Beauty Services Rooms Available

409 Patchogue Rd, Port Jefferson Station, NY 11776

$2,600/Mo

Five-room office space suitable for beauty services, parking available.

View details

Gated Flex Warehouse Suite

50 N Columbia Street, Port Jefferson, NY 11777

$2,900/Mo

Secure gated industrial space with 24-foot ceilings and a 11x11 electric bay door for practical storage or light operations.

View details

Port Jefferson Station Office Space

170 N Country Rd, Port Jefferson Station, NY

$25 SF/Yr

6,800 sqft · $14,166/Mo

6,800 SF office space available for lease.

View details

Port Jefferson Office Space Available

625 Belle Terre Rd, Port Jefferson, NY

Contact for pricing

650 sqft

650 square feet office space for rent in Port Jefferson.

View details

Similar Spaces for Sale in Mount Sinai, NY

Consider Similar Space for Sale. We found 4 Spaces matching your search parameters.

Vacant Land in Mount Sinai

28 Rocky Hill Road, Mount Sinai, NY 11766

$449,000

1.28 AC lot

Vacant land in historic district with winter waterview.

View details

Mount Sinai Mixed-Use Investment

749 Mount Sinai Coram Rd, Mount Sinai, NY

$1,300,000

4,210 sqft · 0.44 AC lot

Two buildings with restaurant, apartment, and cottage; 100% occupancy.

View details

Mount Sinai Land For Sale

306 Route 25A, Mount Sinai, NY 11766

$8,500,000

Commercial land available on Route 25A in Mount Sinai.

View details

Commercial Development Sites on Route 25A

12 Myrtle St, Mt Sinai, NY 11766

Contact for pricing

87,000 sqft · 8.54 AC lot

Two contiguous commercial development sites for sale on Route 25A.

View details

Mount Sinai, NY Commercial real estate Market Trends and Statistics

Explore Commercial real estate leasing options in Mount Sinai, NY with 7 listings featured on our commercial real estate exchange. The current inventory includes 2,500 square feet of properties with an estimated lease value of $22 SF/Yr.

Estimated lease rates for Commercial real estate in Mount Sinai, NY begin at $22 SF/Yr, with an average of $22 SF/Yr and extend to $22 SF/Yr.