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Mixed-Use Office and Apartment Building
For Sale
$625,000

218 Griffing Avenue, Riverhead, NY 11901

The two-level property combines office layouts with a documented one-bedroom apartment use.

Property Size1,698 SF
Price / SF$368.08
Days on Market573

Property Features for 218 Griffing Avenue

General Information

Standard status Active
Size 1,698 SF
Total Parking Spaces 6
Property subtype Commercial
Zoning DC-3

Additional Details

Property Use Office, Apartment

Taxes and HOA fees

Annual Taxes $15,204

Building Details

Building Size 1,698 SF
Year Built 1870
Buildings 2
Stories 2
Units 3
Listing Agency: Bagshaw Real Estate L.L.C
Listed By: John L. Bagshaw Jr · License #10491202130
Source: Clairedleone
Added: Mar 31, 2025 Changed: Oct 23 Last Checked: Oct 23 at 5:15PM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Bagshaw Real Estate L.L.C

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Investment Insights

Based on property information with market context.

Built in 1870, this 1,698-square-foot mixed-use property has two floors. The first includes seven rooms, a kitchen, and 1.5 bathrooms; the second offers three rooms, a large half bath, and an emergency exit. A detached garage is located behind the building, with parking for six vehicles. The property is zoned DC-3.

An updated letter dated August 2, 2024, documents pre-existing use as office space and a one-bedroom apartment. The building is adjacent to Riverhead Town Hall and across Griffing Avenue from the Suffolk County Supreme Courts. Municipal parking is 55 feet away.

Key Highlights

  • 1,698‑square‑foot, two‑level mixed‑use property built in 1870
  • First floor has seven rooms, a kitchen, and 1.5 bathrooms
  • Second floor includes three rooms, a large half bath, and an emergency exit

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$30,228
Cap Rate
4.84%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$604,560 $604.6K
Cap Rate 7%
$431,829 $431.8K
Cap Rate 9%
$335,867 $335.9K
Market Conditions
NOI Build-Up for 1,698 SF
Gross rent
$52.6K $30.96/SF
− Vacancy
−$4.2K −$2.48/SF
EGI
$48.4K $28.48/SF
− OpEx
−$18.1K −$10.68/SF
NOI
$30.2K $17.80/SF
Area
Suffolk County, NY
Vacancy
8.00%
Lease Rate
$30.96 /SF/Yr
Expense Ratio
37.50%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$604,560
Cap Rate 7%
$431,829
Cap Rate 9%
$335,867

Alternative Uses

Best Use
Mixed Use
$431.8K
$377.9K – $503.8K (±1% cap)
NOI $30,228 @ 7.0% cap · market cap 4.84%
Second Best
Office B
$417.1K
$365.0K – $486.6K (±1% cap)
NOI $29,198 @ 7.0% cap · market cap 4.67%
Theoretical Best
Office A
$517.3K
$452.6K – $603.5K (±1% cap)
NOI $36,210 @ 7.0% cap · market cap 5.79%
Zoning and permitted uses should be independently verified with authorities. How Realmo checks its estimates

Property Analytics

Who owns this building? See the owner, sales and loan history
Open Analytics

Current Use

Kelly Rode & Kelly Law Firm Suffolk County Lawyers ... Law Firm

Suggested Use

Top Pick Auto Parts Store (Bike/Boat/Book/etc) Store Carpet & Flooring Store Bakery Real Estate Agency HVAC Service

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

Location Intelligence

Trade Area within ½ mile

1,392
Businesses Nearby

Demographics for 11901, NY

30,936
Population
13,126
Households
2.4
Avg Household Size
42
Median Age
21%
College-Educated
79%
High-School Grad
56.7 sq mi
ZIP Area
546
Density / Sq Mi
$83,252
Median Household Income
$39,949
Median Earnings
$2,195
Median Rent
$437,500
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

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

Frequently Asked Questions

What type of property is this?
Mixed-use property - The two-level property combines office layouts with a documented one-bedroom apartment use.
Where is this mixed-use property located?
The property is located at 218 Griffing Avenue Riverhead, NY.
What is the asking price?
The asking price for this property is $625,000.
What are key features of this property?
This property features: 1,698‑square‑foot, two‑level mixed‑use property built in 1870; First floor has seven rooms, a kitchen, and 1.5 bathrooms; Second floor includes three rooms, a large half bath, and an emergency exit
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