Building Details

Year built 1991

Floors in Building 1

Number of units 5

Building materials Frame

Listing Agency: Douglas Elliman Real Estate T***@elliman.com Show Phone

Listed By: Jacqueline Nett E-PRO PSA Show Phone

Added: Sep 14 Changed: Oct 13 Last Checked: Oct 15 at 10:06AM

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MLS# 1050283

Copyright © 2026 OneKey MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

At 229 Railroad Avenue in Sayville, this 4,697-square-foot medical office property occupies 0.49 acres. The single-level building contains five separately arranged suites, each with a reception area, operator rooms, and a private bathroom. A shared interior corridor connects the suites, and the property is fully occupied. The building dates to 1991 and has central air conditioning.

Approximately 25 on-site parking spaces serve the property. The Sayville Train Station and Main Street are within walking distance. The site is zoned BUS1 and has public water service and a cesspool system.

Key Highlights

• 4,697 SF medical office building on 0.49 acres
• Five private suites, each with reception, operator rooms, and a private bathroom
• Fully occupied, single‑level layout connected by a shared central corridor

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr

$80,767

Cap Rate

4.62%

Suggested Prices Based on Cap Rates

Cap Rate 5%

$1,615,340 $1.6M

Cap Rate 7%

$1,153,814 $1.2M

Cap Rate 9%

$897,411 $897.4K

Market Conditions

NOI Build-Up for 4,697 SF

Gross rent

$131.3K $27.96/SF

− Vacancy

−$23.6K −$5.03/SF

EGI

$107.7K $22.93/SF

− OpEx

−$26.9K −$5.73/SF

NOI

$80.8K $17.20/SF

Area

Suffolk County, NY

Vacancy

18.00%

Lease Rate

$27.96 /SF/Yr

Expense Ratio

25.00%

Simulate Cap Rate and NOI

Suggested Prices Based on Cap Rates

Cap Rate 5%

$1,615,340

Cap Rate 7%

$1,153,814

Cap Rate 9%

$897,411

Alternative Uses

Best Use

Office B

$1.15M

$1.01M – $1.35M (±1% cap)

NOI $80,767 @ 7.0% cap · market cap 4.62%

Second Best

Healthcare Medical

$1.07M

$939.1K – $1.25M (±1% cap)

NOI $75,124 @ 7.0% cap · market cap 4.29%

Theoretical Best

Office A

$1.43M

$1.25M – $1.67M (±1% cap)

NOI $100,165 @ 7.0% cap · market cap 5.72%

Zoning and permitted uses should be independently verified with authorities. How Realmo checks its estimates

Property Analytics

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Current Use

Gallager Loretta Dental Office Schwarz Lyla Dental Office Physical Therapy-Sayville Physician Elizabeth R. Cambra, ... Physician Research Solutions Inc Advertising Agency

Suggested Use

Top Pick Parking Lot & Garage Grocery & Convenience Store HVAC Service Storage Facility (Bike/Boat/Book/etc) Store Carpet & Flooring Store

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

5

Office units

100%

Occupancy

Multi-tenant

Tenancy

Location Intelligence

Trade Area within ½ mile

1,163

Businesses Nearby

Under-served

Demand for This Use

Explore this area Business Placement

Demographics for 11782, NY

15,682

Population

6,680

Households

2.3

Avg Household Size

46

Median Age

55%

College-Educated

95%

High-School Grad

5.6 sq mi

ZIP Area

2,800

Density / Sq Mi

$144,786

Median Household Income

$70,996

Median Earnings

$2,338

Median Rent

$614,300

Median Home Value

Market

Vacancy Rate% for Office in Northeast region

13.1% 2019

15.4% 2020

17.6% 2021

19.1% 2022

20.2% 2023

20.9% 2024

19.9% 2025

Questions? Ask Rey

Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

What type of property is this? Where is this medical office space located? What is the asking price? Find similar properties What are key features of this property?

Similar For Sale Nearby

Two-Story Brick Office Building

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Two-Story Mixed-Use Building

230 N Main Street, Sayville, NY 11782

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Target Investment Property For Sale

5750 Sunrise Hwy, Sayville, NY

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145,000 SF

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Similar Off Market Nearby

• Grady Animal Hospital — 465 N Main St, Sayville, NY 11782

Frequently Asked Questions

What type of property is this?

Medical Office Space - A fully occupied, single-level property offers private clinical suites and on-site parking.

Where is this medical office space located?

The property is located at 229 Railroad Avenue Sayville, NY.

What is the asking price?

The asking price for this property is $1,750,000.

What are key features of this property?

This property features: 4,697 SF medical office building on 0.49 acres; Five private suites, each with reception, operator rooms, and a private bathroom; Fully occupied, single‑level layout connected by a shared central corridor