2. 421 Mill Rd Westhampton NY
421 Mill Rd Westhampton NY

Report Results for

421 Mill Rd Westhampton, NY

421 Mill Rd Westhampton, NY 11977 was built in 2001 and last sold for $937,500. The property has a lot size of 40,075 Sq Ft lot and is listed as a Duplex 2 Units. The property is currently not for sale. Current estimates place the value near 1,376,000, reflecting a 7% change over the past year, with 4 beds, 3 baths, and approximately 3,036 sq ft of living space. If you are looking to buy or rent a property, use USPhoneBook's property database to avoid rental scams, understand tax liabilities, and get a sense of the property's value over time. You can also check out the neighborhood section and see nearby homes, last sold for prices, tax records and more.
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Public Facts

$937,500
Last sold Mar 2, 2026
4
Beds
3
Baths
3,036
Sqft
Off Market
$1,376,000 estimated value
Built in 2001
$453/sqft
40,075 lot sqft

Property characteristics

Property type
Residential
Zoning type
Duplex 2 Units
APN
0900-357.00-01.00-014.005
Heating
Yes
Cooling
Central
Stories
2

Property History

Over the last 12 months, the sales price of 421 Mill Rd Westhampton, NY 11977 has increased by 7%.

Price History

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Year Price Price/Sq Ft
2026 $ 1,358,000 7 % $ 447
2025 $ 1,268,000 -26 % $ 418
2024 $ 1,716,000 60 % $ 565
2023 $ 1,072,000 0 % $ 353
2022 $ 1,065,000 14 % $ 351
2021 $ 934,000 ---- $ 308

Tax History

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Year Taxes Assesments
2025 ---- $ 848,500
2024 $ 7,361 0 %
2023 $ 7,361 ---- $ 848,500
2022 ---- $ 848,500
2021 ---- $ 848,500
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Owner

Aidan Kellachan Aidan J Kellachan , Age 21

Lives at 421 Mill Rd, Westhampton, NY 11977-1206
Relatives: Carla Kellachan, Jacqueline Kellachan, John Kellachan, Kayla Kellachan, Kyle Kellachan, Alice Kellachan, Anthony Cacioppo
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People Living at 421 Mill Rd Westhampton, NY

Aidan Kellachan Aidan J Kellachan , Age 21

Lives at 421 Mill Rd, Westhampton, NY 11977-1206 Westhampton NY 11977 421 Mill Rd
Prior addresses: 59 Watchogue AVE, Unit 6, East Moriches, NY 11940-1306 East Moriches NY 11940 59 Watchogue AVE, Unit 6
Relatives: Carla Kellachan, Jacqueline Kellachan, John Kellachan, Kayla Kellachan, Kyle Kellachan, Alice Kellachan, Anthony Cacioppo
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Kyle Kellachan Kyle Anthony Kellachan , Age 26

Lives at 421 Mill Rd, Westhampton, NY 11977-1206 Westhampton NY 11977 421 Mill Rd
Prior addresses: 59 Watchogue Ave, Unit 6, East Moriches, NY 11940-1306 East Moriches NY 11940 59 Watchogue Ave, Unit 6 97 Beechwood DR, Manorville, NY 11949-2959 Manorville NY 11949 97 Beechwood DR
Relatives: Aidan Kellachan, Carla Kellachan, Jacqueline Kellachan, John Kellachan, Kayla Kellachan, Alice Kellachan, Anthony Cacioppo
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Kayla Kellachan Kayla A Kellachan , Age 28

Lives at 97 Beechwood Dr, Manorville, NY 11949-2959 Manorville NY 11949 97 Beechwood Dr
Prior addresses: 421 Mill Rd, Westhampton, NY 11977-1206 Westhampton NY 11977 421 Mill Rd 59 Watchogue Ave, Unit 6, East Moriches, NY 11940-1306 East Moriches NY 11940 59 Watchogue Ave, Unit 6 6 Philips Ct, Mount Sinai, NY 11766-3418 Mount Sinai NY 11766 6 Philips Ct
Relatives: Aidan Kellachan, Carla Kellachan, Jacqueline Kellachan, John Kellachan, Kyle Kellachan, Alice Kellachan, Anthony Cacioppo
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Carla Kellachan Carla Anne Kellachan , Age 57

Lives at 421 Mill Rd, Westhampton, NY 11977-1206 Westhampton NY 11977 421 Mill Rd
Prior addresses: 6 Andrea CT, Riverhead, NY 11901-1511 Riverhead NY 11901 6 Andrea CT 59 Watchogue Ave, Unit 6, East Moriches, NY 11940-1306 East Moriches NY 11940 59 Watchogue Ave, Unit 6 6 Philips Ct, Mount Sinai, NY 11766-3418 Mount Sinai NY 11766 6 Philips Ct
Relatives: John Kellachan, Aidan Kellachan, Anthony Cacioppo, Charles Cacioppo, Jacqueline Kellachan, Joseph Cacioppo, Kayla Kellachan, Kelly Cacioppo
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Martin Sarocky Martin Sarocky , Age 52

Lives at 421 Mill Rd, Westhampton, NY 11977-1206 Westhampton NY 11977 421 Mill Rd
Prior addresses: 271 PO Box, Westhampton, NY 11977-0271 Westhampton NY 11977 271 PO Box Po Box 214, East Quogue, NY 11942-0214 East Quogue NY 11942 Po Box 214 22 Staller DR, East Quogue, NY 11942-3001 East Quogue NY 11942 22 Staller DR
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Jill Bross Jill D Bross , Age 57

Lives at 421 Mill Rd, Westhampton, NY 11977-1206 Westhampton NY 11977 421 Mill Rd
Prior addresses: 42 Monroe Dr, Poughkeepsie, NY 12601-6019 Poughkeepsie NY 12601 42 Monroe Dr
Relatives: Carol Lance, Joseph Lance, Judith Bramson, Marie Lance, Michael Quatro, Michele Lance, Taylor Hewell, William Lance
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Jacqueline Kellachan Jacqueline Kellachan , Age 60

Lives at Po Box 183, Bearsville, NY 12409-0183 Bearsville NY 12409 Po Box 183
Prior addresses: 76 Striebel Rd, Woodstock, NY 12498-1140 Woodstock NY 12498 76 Striebel Rd Po Box 83, Bearsville, NY 12409-0083 Bearsville NY 12409 Po Box 83
Relatives: Aidan Kellachan, Alice Kellachan, Carla Kellachan, Jean Kellachan, John Kellachan, Kayla Kellachan, Kyle Kellachan, Lisa Kellachan
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John Kellachan John S Kellachan , Age 57

Lives at 125 Ocean Ave, Unit 406, Lynbrook, NY 11563-1966 Lynbrook NY 11563 125 Ocean Ave, Unit 406
Prior addresses: 421 Mill Rd, Westhampton, NY 11977-1206 Westhampton NY 11977 421 Mill Rd 6 Andrea CT, Riverhead, NY 11901-1511 Riverhead NY 11901 6 Andrea CT 59 Watchogue Ave, Unit 6, East Moriches, NY 11940-1306 East Moriches NY 11940 59 Watchogue Ave, Unit 6
Relatives: Carla Kellachan, Aidan Kellachan, Daniel Kellachan, Hailey Kellachan, Jacqueline Kellachan, Joseph Kellachan, Kayla Kellachan
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Zuzana Matascikova Zuzana A Matascikova , Age 50

Lives at 643 Ent Ave, Unit B, Westhampton Beach, NY 11978-1008 Westhampton Beach NY 11978 643 Ent Ave, Unit B
Prior addresses: Po Box 271, Westhampton, NY 11977-0271 Westhampton NY 11977 Po Box 271 421 Mill Rd, Westhampton, NY 11977-1206 Westhampton NY 11977 421 Mill Rd 8404 Woodhaven Blvd, Jamaica, NY 11421-1433 Jamaica NY 11421 8404 Woodhaven Blvd
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Jimmy Huang Jimmy Junqi Huang , Age 78

Lives at 14013 58th Rd, Flushing, NY 11355-5308 Flushing NY 11355 14013 58th Rd
Prior addresses: Po Box 527146, Flushing, NY 11352-7146 Flushing NY 11352 Po Box 527146 14032 Oak Ave, Apt 14032, Flushing, NY 11355-3557 Flushing NY 11355 14032 Oak Ave, Apt 14032 2 Westerly Rd, Hampton Bays, NY 11946-1928 Hampton Bays NY 11946 2 Westerly Rd
Relatives: Paolien Huang, Bao Chen, Chen Huang, Chin Huang, Chun Huang, Doris Huang, Elizabeth Jacob, Hweishin Huang, Jacky Huang
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Neighbors

51 Montauk Hwy
Westhampton Beach, NY
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45 Montauk Hwy
East Hampton, NY
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45 Montauk Hwy
East Hampton, NY
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413A Mill Rd
Westhampton, NY
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FAQs

Who lives at 421 Mill Rd, Westhampton, NY 11977?
According to our records, the current person living in 421 Mill Rd is Aidan Kellachan.
Is this property currently for sale?
The property is not for sale and last sold for $937,500 on Mar 2, 2026. Use USPhoneBook to review nearby listings or compare similar homes in the area.
What is the estimated value of this property?
The estimated value is $1,376,000, reflecting a 7% change over the past year. You can explore price history and tax records to see how the value has changed over time.
How big is this property?
It features approximately 3,036 sq ft of living space on a 40,075 sq ft lot, built in 2001 and classified as a Duplex 2 Units.
What nearby properties can I compare this to?
Nearby homes include 51 Montauk Hwy, 45 Montauk Hwy, and 45 Montauk Hwy, each with its own property report to help compare size, value, and residents.