Nassau County  »  30 William St

30 William Street, Rockville Centre, NY 11570 Property Information

30 William Street, Rockville Centre, NY 11570 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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30 William Street, Rockville Centre, NY 11570
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Address

Primary address 30 William Street, Rockville Centre
Zip code 11570
County Nassau
Town/City Hempstead
Village (swiss code) Rockville Centre
Parcel ID 38-244-11

Sales & Tax Overview for 30 William Street, Rockville Centre

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 09/21/2016
Sale price $541,700
Arm's length
Tax class
Current property tax $13,582

Lot & Building Information for 30 William Street, Rockville Centre

Building sqft 1,344
Building class One Family Year - Round Residence (210.01)
Land Primary site
Topography Level
Acreage 0.092
Buildings on lot 1
Year built 1926
Stories 2
Style Old Style
Rooms 7
Bathrooms 1
Attic None
Basement Full
Exterior wall Frame
Heating type Central
Heating system Steam and vapor
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district (See more on map)
School district Rockville Centre UFSD

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 30 William Street, Rockville Centre

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About 30 William Street, Rockville Centre

What is the year built & the total sq. ft. for 30 William Street, Rockville Centre, NY 11570?

30 William Street, Rockville Centre, NY 11570 was built in 1926 and has a total of 1,344 square feet.

What is the assessed value of 30 William Street, Rockville Centre, NY 11570 and the property tax paid?

Assessed at $535, the tax amount paid for 30 William Street, Rockville Centre, NY 11570 is $13,582.

When was 30 William Street, Rockville Centre, NY 11570 last sold?

30 William Street, Rockville Centre, NY 11570 was last sold in 02/18/2021.

Ownership Information

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Real Estate Reports:
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
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Past Sales & Property History for 30 William Street, Rockville Centre

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Purchase date Purchase price Buyer name Seller name
09/21/2016 $541,700

Title Documents for 30 William Street, Rockville Centre

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Date Type Amount Party 1 Party 2
03/23/2021 - R Other
(Mortgage satisfaction)
02/18/2021 - D
10/06/2021 - R
Deed
02/18/2021 - D
10/06/2021 - R
Mortgage
(Fixed rate)
09/21/2016 - D
10/04/2016 - R
Deed
         
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R: Recorded date
D: Document date

Property Taxes for 30 William Street, Rockville Centre

Access detailed property tax data for 30 William Street, Rockville Centre, NY 11570. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year 2026
Property tax $13,582
Tax class
Market value $535,000
Assessed value $535
School current tax bill
Transitional assessed value

Assessment History for 30 William Street, Rockville Centre

Here's the assessment & property tax history for 30 William Street, Rockville Centre, including the evolution of the total tax rate and corresponding property tax.

Year Market value Assessment value Total tax rate Property tax Year over year change
2026 $535,000 $535 2538.723 $13,582 +10.13%
2025 $505,000 $505 2442.178 $12,333 -17.93%
2024 $571,322 $571 2631.748 $15,027 -3.59%
2023 $571,000 $571 2729.695 $15,587 -10.98%
2022 $571,000 $571 3066.258 $17,508 -13.36%

Permits for 30 William Street, Rockville Centre

The complete history of permits filed for 30 William Street, Rockville Centre, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Data not available for this property.

Rockville Centre residential market stats

Median Sale Price
$963,000
8.7% YoY
Median Price/Sqft
$483
1.9% YoY
Nassau County Median Sale Price
$805,000
6.6% YoY

Access a detailed real estate market overview of Rockville Centre so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Rockville Centre and compare it to other neighborhoods in Nassau County.

Check out recently sold homes in Rockville-Centre and see how their prices compare.

Risk

Create a free account to unlock extended information for 30 William Street, Rockville Centre, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) X (See more on map)

Transportation

Access the detailed traffic volume map for 30 William Street, Rockville Centre to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Wilson School 7 Public K-5 412 0.54
Hewitt School 7 Public K-5 455 0.59
St Agnes Cathedral School NR Private K-8 690 0.81
Watson School 6 Public K-5 237 0.87
Plaza Elementary School 6 Public K-5 441 0.87

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
South Side Middle School 6 Public 6-8 837 0.63
St Agnes Cathedral School NR Private K-8 690 0.81
St Christopher Elementary School NR Private PK-8 231 1.36
Howard T Herber Middle School 7 Public 6-8 422 1.55
Our Lady of Lourdes School NR Private PK, K-8 0 1.90

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
South Side High School 9 Public 9-12 999 0.65
Baldwin Senior High School 8 Public 9-12 1,484 1.45
Malverne Senior High School 8 Public 9-12 628 1.49
Castleton Academy High School Of Oceanside 4 Public 9-12 50 1.55
Freeport High School 5 Public 9-12 2,264 1.71

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 30 William Street, Rockville Centre

Here are the neighbors for 30 William Street, Rockville Centre.

Address Square feet Purchase date Purchase price
26 William St, Rockville Centre 1,350 03/26/1998 $260,000
20 William St, Rockville Centre 1,552 07/02/2018 $665,000
341 N Forest Ave, Rockville Centre 1,992 07/16/2010 $565,000
10 William St, Rockville Centre 1,312 04/15/2020 $475,000
230 Princeton Rd, Rockville Centre 2,424 11/04/1994 $315,000
222 Princeton Rd, Rockville Centre 2,283 05/28/2014 $750,000
14 William St, Rockville Centre 1,980
347 N Forest Ave, Rockville Centre 1,508 08/02/2012 $555,000
264 Princeton Rd, Rockville Centre 2,235 04/13/2004 $625,000
244 Princeton Rd, Rockville Centre 3,335 06/14/2012
236 Princeton Rd, Rockville Centre 2,416 06/12/2015 $720,000
22 William St, Rockville Centre 1,791 07/13/2022 $805,000
16 William St, Rockville Centre 1,313 04/16/2013 $416,000
345 N Forest Ave, Rockville Centre 1,508 06/07/2021
22 Capitolian Blvd, Rockville Centre 2,288 06/19/2012 $580,000
270 Princeton Rd, Rockville Centre 3,199 01/18/2005 $800,000
250 Princeton Rd, Rockville Centre 2,540 05/30/2000 $499,000
335 N Forest Ave, Rockville Centre 1,846 07/15/2010
24 Capitolian Blvd, Rockville Centre 1,974
254 Princeton Rd, Rockville Centre 2,175 12/17/2021

Nearby ZIP Codes for 30 William Street, Rockville Centre

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