Coldwell Banker Home Page
Skip to main contentColdwell Banker Home Page
Local Realty Service Provided By: Coldwell Banker Kueber Realty
Property view
Listing view 2
Listing view 3

321 Union Avenue, 
Riverhead, NY 11901

$899,000

7

Beds

5

Baths

2,700

Sq Ft

Single Family

Active

Listed by

Matthew Hart

World Prop Intl Sea To Sky

Last updated:

June 3, 2026, 10:49 AM

MLS#

1001523

Source:

OneKey MLS

About This Home

321 Union Avenue

Welcome to this beautifully built brand new construction home featuring 7 bedrooms, 4 full bathrooms, and 1 half bath with room for everyone. Designed with comfort and functionality in mind, the home boasts soaring 10-foot finished basement ceilings, 9-foot ceilings throughout the first and second floors, and spacious open living areas perfect for entertaining. The separate outside entrance to the basement provides added flexibility for extended family or guest accommodations. Outside, enjoy a professionally designed premium landscaping package and full irrigation system. Ideally situated just a short 5-minute walk to the revitalized Main Street in Riverhead, filled with restaurants, shopping, and entertainment. Surrounded by exciting new development being built nearby by a prominent local developer, adding tremendous future value to the neighborhood.

Home Facts

Single Family

5 Baths

7 Bedrooms

Built in 2026

Price Summary

899,000

$332 per Sq. Ft.

MLS #:

1001523

Last Updated:

June 3, 2026, 10:49 AM

Added:

18 day(s) ago

Rooms & Interior

Bedrooms

Total Bedrooms:

7

Bathrooms

Total Bathrooms:

5

Full Bathrooms:

4

Interior

Living Area:

2,700 Sq. Ft.

Structure

Structure

Architectural Style:

Colonial

Building Area:

2,700 Sq. Ft.

Year Built:

2026

Lot

Lot Size (Sq. Ft):

5,227

Finances & Disclosures

Finances

Price:

$899,000

Price per Sq. Ft:

$332 per Sq. Ft.

Source:OneKey MLS
Copyright 2026 OneKey MLS. All rights reserved. Listings courtesy of OneKey MLS as distributed by MLS GRID . OneKey MLS provides content displayed here (“provided content”) on an “as is” basis and makes no representations or warranties regarding the provided content, including, but not limited to those of non-infringement, timeliness, accuracy, or completeness. Individuals and companies using information presented are responsible for verification and validation of information they utilize and present to their customers and clients. OneKey MLS will not be liable for any damage or loss resulting from use of the provided content or the products available through Portals, IDX, VOW, and/or Syndication. Recipients of this information shall not resell, redistribute, reproduce, modify, or otherwise copy any portion thereof without the expressed written consent of OneKey MLS.

Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.

Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.