321 Union Avenue, Riverhead, NY 11901
FOR SALE

321 Union Avenue
Riverhead, NY 11901

  • 7 Beds
  • 4.5 Baths
  • 2,700 sqft

$899,000

Est. Mortgage $5,917/mo*

$899,000

Est. Mortgage $5,917/mo*
7 Beds
4.5 Baths
2,700 sqft

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

Description

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 Highlights

Parking
Open Parking
Outdoor
Patio
A/C
Heating & Cooling
HOA
None
Price/Sqft
$333
Listed
26 days ago
Last check for updates: about 5 hours ago
Listing by: World Prop Intl Sea to Sky, (631) 961-4626
Matthew Hart, (631) 961-4626
Source: OneKey® MLS as distributed by MLS GRID, MLS#1001523

Home Details for 321 Union Avenue

Interior Features

Interior Details
Basement: FinishedNumber of Rooms: 11
Beds & Baths
Number of Bedrooms: 7Number of Bathrooms: 5Number of Bathrooms (full): 4Number of Bathrooms (half): 1
Dimensions and Layout
Living Area: 2700 Square Feet
Appliances & Utilities
Utilities: Electricity ConnectedAppliances: Stainless Steel Appliance(s)
Heating & Cooling
Heating: ElectricHas CoolingAir Conditioning: Central AirHas HeatingHeating Fuel: Electric
Fireplace & Spa
Number of Fireplaces: 1Has a Fireplace
Gas & Electric
Has Electric on Property
Windows, Doors, Floors & Walls
Flooring: Wood
Levels, Entrance, & Accessibility
Floors: Wood

Exterior Features

Exterior Home Features
Patio / Porch: PatioNo Private Pool
Parking & Garage
No CarportNo GarageHas Open ParkingParking: Driveway
Water & Sewer
Sewer: Public Sewer

Days on Market

Cumulative Days on Market: 1Days on Market: 26

Property Information

Year Built
Year Built: 2026
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family Residence, ResidentialArchitecture: Colonial
Building
Construction Materials: FrameNot Attached Property
Property Information
Parcel Number: 0600127000100041000

Price & Status

Price
List Price: $899,000Price Per Sqft: $333

Active Status

MLS Status: Active

Location

Direction & Address
City: Riverhead
School Information
Elementary School: Contact AgentJr High / Middle School: Riverhead Middle SchoolHigh School: Riverhead Senior High SchoolHigh School District: Riverhead

Agent Information

Listing Agent
Listing ID: 1001523

Building

Building Area
Building Area: 2700 Square Feet

Community

Not Senior Community

HOA

No HOA

Lot Information

Lot Area: 5227 sqft

Listing Info

Special Conditions: None

Offer

Listing Agreement Type: Exclusive Agency

Miscellaneous

BasementMls Number: 1001523Attic: UnfinishedAttribution Contact: 631-961-4626Showing Requirements: Appointment Only

Market trends in Riverhead

Last updated May 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
69
3
MoM

Price History for 321 Union Avenue

DatePriceEventSource
05/18/2026$899,000Listed For SaleOneKey® MLS as distributed by MLS GRID #1001523

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Comparable Sales for 321 Union Avenue

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.09
Single-Family Home
$662,000
03/04/26
5
2
2,318
0.09
Single-Family Home
$530,000
04/08/26
3
1.5
1,740
0.52
Single-Family Home
$651,000
06/30/25
6
3
2,150
0.45
Single-Family Home
$815,000
06/09/26
4
2.5
2,600
0.77
Single-Family Home
$790,000
10/25/25
4
3.5
3,000
0.26
Single-Family Home
$540,000
09/02/25
3
1.5
1,400
0.29
Single-Family Home
$571,000
08/27/25
3
1.5
1,813
0.36
Single-Family Home
$535,000
10/10/25
3
1
1,932
0.83
Single-Family Home
$825,000
02/19/26
6
3
1,933

Nearby homes

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Assigned Schools

These are the assigned schools for 321 Union Avenue.
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

What Locals Say about Riverhead

At least 198 Trulia users voted on each feature.
  • 85 % Say car is needed

  • 77 % Say there's holiday spirit

  • 76 % Say yards are well-kept

  • 69 % Say it's dog friendly

  • 69 % Say parking is easy

  • 60 % Say kids play outside

  • 59 % Say it's quiet

  • 57 % Say they plan to stay for at least 5 years

  • 55 % Say there's wildlife

  • 53 % Say people would walk alone at night

  • 51 % Say streets are well-lit

  • 47 % Say neighbors are friendly

  • 45 % Say there are community events

  • 43 % Say it's walkable to restaurants

  • 39 % Say there are sidewalks

  • 39 % Say it's walkable to grocery stores

Sourced by Trulia users. Learn more about our methodology.
  • Candylure
    "The usual holiday parades, alive on 25 during the summer months. A party in the streets of downtown Riverhead. "
  • Marthos P.
    "Riverhead is an up and coming neighborhood. This town has made a lot of upgrades and is cleaned up quite a bit from the Riverhead I remember as a kid."
  • Christine K.
    "Polar opposite experiences from when you enter downtown Riverhead, which is not to be considered as safe as communities closer to the other side of town ... where many neighborhoods and developments are located up and down Sound Avenue ... and just blocks from a handful of public and private beaches overlooking the beautiful Long Island Sound. "
  • Fredyacampos22
    "It’s kinda lonely but safe people it’s nice but the bus service it’s not that easy sings and bus stops not well located but there’s nice lakes nearby "
  • Kollshay24
    "My commute is very short, I don’t ave a hard time getting to and from work and shops. Pretty convenient for me"
  • Fauxfoe
    "There aren’t many sidewalks in a lot of areas. There are also tons of deer, and lots of hunters. Ticks are also an issue."
  • Donnacooke23
    "I work in the town of Riverhead. Shopping, schools, and easy access to major roads to travel such as Sunrise and the expressway"
  • Tabithabrunskill123
    "I’ve lived here all my life and it’s pretty much close knit and friendly and everyone takes care of each other"
  • Kattibattaglia
    "There are lots of dog friendly public spaces and outdoor restaurants. Safe streets for walking your pup"
  • BayViewPinesResident
    "Bay View Pines is a hidden gem in the Town of Southampton. It is a quiet, peaceful community-minded neighborhood with its own bay beach, good neighbors and easy access to both the North & the South Forks. It is located in Flanders which is the proud home of the Big Duck!"
  • Christine K.
    "The area is going through a transition for the better — downtown Riverhead is becoming more popular for both young kids, teens .... and adult age groups. Main street is now lined with popular restaurants and bars all along the Riverwalk, which is a great place to go for a walk / people watch / stroll around with Ralphs! "
  • Michelle878 a.
    "The school is district is great and the neighbors are friendly. There are many restaurants, malls, grocery stores and fun places for kids to learn and grow."
  • Mike C.
    "Flanders does not include garbage pickup. Be prepared to pay for private company or cart garbage back to the city. "
  • jimmyb11957
    "Live in an over 55 community. Very nice close to entertainment, restaurants shopping wineries and beaches. "
  • Coachcasas
    "only lived here temporarily for a year but neighbors are friendly. They walk their dogs & jog around safely. Shopping, wineries & restaurants are nearby."
  • 2 D. W. L.
    "Riverhead has several golf courses, numerous vineyards and restaurants. The family will enjoy Atlantis aquarium and Splish Splash. There is plenty of shopping at downtown riverhead and Tanger Mall. There are several equestrian centers as well."
  • ally4
    "There is a lot of crime in this neighborhood ,loud music and in the summer all of it gets worst. It's not an easy place to walk around at night and the cops are always around"
  • Bob P.
    "Live here and work this area and a 20 mile radius as an real estate broker"

LGBTQ Local Legal Protections

Matthew Hart, World Prop Intl Sea to Sky, (631) 961-4626
Agent Phone: (631) 961-4626
Based on information submitted to the MLS GRID as of 2026-02-06 15:18:24 PST. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some IDX listings have been excluded from this website. Click here for more information
321 Union Avenue, Riverhead, NY 11901 is a 7 bedroom, 5 bathroom, 2,700 sqft single-family home built in 2026. This property is currently available for sale and was listed by OneKey® MLS as distributed by MLS GRID on May 18, 2026. The MLS # for this home is MLS# 1001523.