Nassau County  »  55 Mill River Rd

55 Mill River Road, Oyster Bay, NY 11771 - Property report

Also known as: 55 Mill River Rd

Property image for 55 Mill River Road, Oyster Bay, NY 11771
static Mapbox map

Property type

Estates - Luxurious Residence (250.01)

Year built

1915

Acreage

18.46

Sale price

$5,600,000

General information

Unlock this property report with a free account

Access up-to-date information from property owner names to sales history, deeds, tax info, mortgages, development data, planimetric maps and more.

Address
Primary address
55 Mill River Road
ZIP code
11771
County
Nassau
Town/City
Oyster Bay
Village (SWIS code)
Upper Bookville
Parcel ID
24-B-1014

Owner

Find out who owns 55 Mill River Road, Oyster Bay, NY 11771. Uncover corporate and individual owners with a free account.

Sales
Sale date
08/21/2013
Sale price
$5,600,000
Arm's length
Tax
Tax year
2026
Current property tax
$90,273
Tax class
Zoning & Use
Zoning
OP1
Building
Property type
Estates - Luxurious Residence (250.01)
Building sq. ft.
13,812
Buildings on lot
2
Stories
2.7
Year built
1915
Rooms
32
Bathrooms
10
Half bathrooms
4
Exterior wall
Brick
Building style
Mansion, Estate
Basement
Full
Attic
None
Fireplaces
9
Heating type
Central
Heating system
Hot water
Lot
Acreage
18.46
Topography
Level
Land
Primary site

Area overview

Walk score
22 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
28 /100.  Somewhat Bikeable
School district
3008

View more such as transportation, nearby schools and risk designations.

Ownership

Ownership information for 55 Mill River Road, Oyster Bay, NY

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 55 Mill River Road, Oyster Bay, NY 11771

Sale date Sale price Buyer name Seller name
08/21/2013 $5,600,000 XXXXXX XXXX XXXXXX XXXXXXXX X; XXXXXXX XXXXXXXX X

*Most recent sale on record for this property.

More about Nassau County property records.

Title documents

Date Type Amount Party 1 Party 2
09/03/2013 - R
08/21/2013 - D		 Deed XXXXXX XXXXXXXX X XXXXXX XXXX

*Most recent recorded document on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 55 Mill River Road, Oyster Bay, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2026
Property tax
$90,273
Current school tax
Recent tax assessments
Market value
$5,440,000
Assessed value
$5,440
Transitional assessed value

More about Nassau County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Market value Assessed value Tax rate Property tax Y-o-Y change
2026 $5,440,000 $5,440 1659.435 $90,273 -5.08%
2025 $5,849,000 $5,849 1626.006 $95,105 -15.04%
2024 $6,402,000 $6,402 1748.58 $111,944 -3.51%
2023 $6,402,000 $6,402 1812.244 $116,020 -16.06%
2022 $7,029,000 $7,029 1966.355 $138,215 -4.47%
2021 $6,632,000 $6,632 2181.608 $144,684 +77.54%
2020 $3,584,000 $8,960 909.527 $81,494 -6.26%
2019 $4,093,600 $10,234 849.455 $86,933 +5.71%
2018 $4,093,600 $10,234 803.609 $82,241 +2.91%
2017 $4,093,600 $10,234 780.864 $79,914 -10.87%
Permits

Permit information for 55 Mill River Road, Oyster Bay, NY

No recently recorded permits for this property.

Neighborhood

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones
X

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 55 Mill River Road, Oyster Bay, NY 11771 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Vernon School 6 Public 3-6 434 0.62
St Dominic High School NR Private PK-12 603 0.98
St Dominic High School NR Private PK-12 603 0.98
St Dominic Elementary School NR Private PK-8 218 1.03
St Dominic Elementary School NR Private PK-8 218 1.03
Theodore Roosevelt School NR Public PK, K-2 325 1.10
Theodore Roosevelt School NR Public PK, K-2 325 1.10
Mill Neck Manor School for the Deaf NR Private PK-12 106 2.02
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
St Dominic High School NR Private PK-12 603 0.98
St Dominic Elementary School NR Private PK-8 218 1.03
OYSTER BAY MIDDLE SCHOOL 5 Public 7-8 217 1.16
Harmony Heights School NR Private 8-12 74 1.24
Harmony Heights School NR Private 8-12 0 1.26
Mill Neck Manor School for the Deaf NR Private PK-12 106 2.02
Locust Valley Middle School 8 Public 6-8 472 3.34
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
St Dominic High School NR Private PK-12 603 0.98
Oyster Bay High School 7 Public 9-12 415 1.16
Harmony Heights School NR Private 8-12 74 1.24
Harmony Heights School NR Private 8-12 0 1.26
Mill Neck Manor School for the Deaf NR Private PK-12 106 2.02
Mill Neck Manor School for Deaf Child NR Private PK, K-12 0 2.10
Locust Valley High School 9 Public 9-12 629 3.34
Syosset Senior High School 10 Public 9-12 2,266 3.63
P.S. 256 NR Public PK, K-12 500 3.77

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 55 Mill River Road, Oyster Bay, NY

75 Mill River Rd, Oyster Bay 136 Mill River Rd, Oyster Bay 453 Remsens Ln, Oyster Bay 185 Lawn Ln, Oyster Bay 99 Mill River Rd, Oyster Bay 89 Mill River Rd, Oyster Bay 880 Oyster Bay Rd, East Norwich 1395 Planting Fields Rd, Oyster Bay 45 Mill Riv, Oyster Bay 57 Mill Riv, Oyster Bay 69 Mill River Rd, Oyster Bay 63 Mill River Rd, Glen Head 111 Mill River Rd, Oyster Bay 184 Lawn Ln, Oyster Bay 87 Mill River Rd, Oyster Bay 117 Mill River Rd, Oyster Bay 321 Mill River Rd, Oyster Bay 447 Remsens Ln, Oyster Bay 93 Mill River Rd, Oyster Bay 67 Mill River Rd, Oyster Bay

Nearby ZIP codes for 55 Mill River Road, Oyster Bay, NY

11542, Nassau County, NY 11545, Nassau County, NY 11547, Nassau County, NY 11548, Nassau County, NY 11560, Nassau County, NY 11568, Nassau County, NY 11576, Nassau County, NY 11579, Nassau County, NY 11590, Nassau County, NY 11709, Nassau County, NY 11724, Suffolk County, NY 11732, Nassau County, NY 11743, Suffolk County, NY 11753, Nassau County, NY 11765, Nassau County, NY 11791, Nassau County, NY 11797, Nassau County, NY 11801, Nassau County, NY 11804, Nassau County, NY

Frequently asked questions

What is the year built for 55 Mill River Road, Oyster Bay, NY 11771?

The development at 55 Mill River Road, Oyster Bay, NY 11771 was built in 1915.

What is the total square footage of 55 Mill River Road, Oyster Bay, NY 11771?

55 Mill River Road, Oyster Bay, NY 11771 has a total of 13,812 square feet.

When was 55 Mill River Road, Oyster Bay, NY 11771 last sold and what was the sale price?

55 Mill River Road, Oyster Bay, NY 11771 was last sold on 08/21/2013 for $5,600,000.

What is the assessed value of 55 Mill River Road, Oyster Bay, NY 11771?

55 Mill River Road, Oyster Bay, NY 11771 is currently assessed at $5,440.

What are the property taxes for 55 Mill River Road, Oyster Bay, NY 11771?

The property taxes for 55 Mill River Road, Oyster Bay, NY 11771 total $90,273.

Disclaimer

Copyright 2003-2026 by PropertyShark.com

All data comes from government sources. No attempt has been made to validate it. No attempt has been made to validate the accuracy of the programming of this website.

Do not rely on this report to support investment decisions. The only authoritative source for the information in this report is the government agencies from which the data was acquired.

Sign up for a free account