Hamlet · Oyster Bay · 2028 tentative roll
Greenvale property taxes
The typical home here is valued at $818,000, the 40th-highest of 119 hamlets and villages.
Free to look. A grievance can’t raise your assessment.
Typical County value: $818,000
The 40th-highest of 119 hamlets and villages
- Middle half
- $667,000–$1,060,000
- Homes counted
- 190
How Greenvale compares
Value
$818k Higher than 79 of 119 hamlets and villages
Bills here run high partly because homes are worth more. That alone doesn’t mean anyone is over-assessed: what counts is how your home compares with similar homes in Greenvale.
Valued most like Greenvale: Point Lookout, Jericho, Cold Spring Harbor
Is Greenvale assessed evenly?
Too few homes in Greenvale sold recently to compare the County’s values with sale prices. A fair comparison needs at least 30 sales. See Greenvale in North Hempstead, which has more homes, or how every district ranks.
Home values in Greenvale
A quarter of homes in Greenvale are valued under $667,000 and a quarter over $1,060,000. A home near the top isn’t over-assessed for that alone; it may simply be larger, newer, or on more land.
| Figure | 5th percentile | 25th percentile | Median | 75th percentile | 95th percentile |
|---|---|---|---|---|---|
| County market value | $11,900 | $667,000 | $818,000 | $1,060,000 | $1,976,350 |
| Assessed value | $12 | $667 | $818 | $1,060 | $1,976 |
County market value
- Median
- $818,000
- Middle half
- $667,000–$1,060,000
- Most homes (5th–95th)
- $11,900–$1,976,350
Assessed value
- Median
- $818
- Middle half
- $667–$1,060
- Most homes (5th–95th)
- $12–$1,976
Reading these figures
A median describes Greenvale, not your home, which may sit well above or below it for good reasons. The tentative roll can still change before it becomes final. This page summarizes published records and is not an appraisal; verify any figure that matters in the Nassau County Land Records Viewer, and see how these pages are built.
Common questions
How are homes in Greenvale assessed?
Nassau assesses one-to-three family homes at the same small fraction of County market value across the county. In Greenvale, the median assessed value is $818, which is 0.1% of market value. Your tax bill is calculated from assessed value.
How do I file a property tax grievance in Greenvale?
File with Nassau County’s Assessment Review Commission (ARC), online or on paper, during the published window of January 4–March 1, 2027. Filing is free, needs no attorney, and the County states a grievance never raises an assessment. ARC reviews the assessment behind county, town, and school taxes. If your home is in an incorporated village that sets its own assessment, the village holds a separate grievance, usually in February.
See any home’s County record and how it compares.
Look up any home to see the value the County has assigned it. No account, payment, or appeal authorization required.
We have records for every town and city in Nassau County.
School districts serving Greenvale
School districts that serve homes in this area. Each has its own summary page.
Town of Oyster Bay taxes and grievances · Browse every school district, hamlet, and village
Other hamlets and villages in Oyster Bay
Compare Greenvale with its neighbors on the same roll.
Keep reading
Understanding your Nassau County assessment
Market value, assessed value and your bill measure different things. A grievance argues the value behind your assessment is too high.
Choosing comparable sales
Homes like yours in size, type, location and condition. A neighbor’s lower tax bill isn’t evidence.
Nassau County tax grievance deadline
January 4–March 1, 2027, filed with ARC. Don’t count on an extension.