Village · Oyster Bay · 2028 tentative roll
Bayville property taxes
37 homes sold here recently. The County valued them anywhere from 45% to 76% of what they sold for.
Free to look. A grievance can’t raise your assessment.
37 recent sales
County value as a share of each sale price
At the same $800k price, that’s $361k for one home and $609k for another.
- Typical County value
- $504,500
- Homes counted
- 2,619
How Bayville compares
Value
$505k Higher than 27 of 119 hamlets and villages
Bills here run lower partly because homes are worth less. That alone doesn’t mean anyone is over-assessed: what counts is how your home compares with similar homes in Bayville.
Valued most like Bayville: Lynbrook, North Bellmore, East Rockaway
Is Bayville assessed evenly?
37 one-to-three family homes in Bayville sold in the 18 months before the County’s valuation date. For the middle sale, the County’s market value was 60% of the sale price. That is below 100%, so the County typically valued these homes lower than they sold for.
The County valued 0% of these homes above what they sold for. Values here are about as even as the standard assessors are held to.
- Homes sold and compared
- 37After setting aside 3 unusual sales
- County value as a share of sale price
- 60%The middle sale; 100% means the County’s value matched the price
- Valued above their sale price
- 0%
- Evenness of values (COD)
- 9.4The assessors’ standard for homes is 15 or lower; higher means less even
- Price-related differential (PRD)
- 1.010.98 to 1.03 is acceptable; higher favors expensive homes
By sale price
The same sales split into five groups by price. For the cheapest fifth, the County’s value was 67% of the sale price; for the priciest fifth, 59%.
Sale prices come from New York State SalesWeb records, adjusted to the valuation date by the local price trend of +0.6% a month. A ratio study describes Bayville, not your home: one sale can be unusual. It is not an appraisal. Compare your own home or see how every district ranks.
Home values in Bayville
A quarter of homes in Bayville are valued under $425,000 and a quarter over $630,000. 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 | $24,000 | $425,000 | $504,500 | $630,000 | $969,250 |
| Assessed value | $24 | $425 | $505 | $630 | $969 |
County market value
- Median
- $504,500
- Middle half
- $425,000–$630,000
- Most homes (5th–95th)
- $24,000–$969,250
Assessed value
- Median
- $505
- Middle half
- $425–$630
- Most homes (5th–95th)
- $24–$969
Reading these figures
A median describes Bayville, 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 Bayville assessed?
Nassau assesses one-to-three family homes at the same small fraction of County market value across the county. In Bayville, the median assessed value is $505, which is 0.1% of market value. Your tax bill is calculated from assessed value.
How do I file a property tax grievance in Bayville?
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. The Village of Bayville levies village taxes on the County’s assessment, so an ARC filing covers village taxes too.
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 Bayville
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 Bayville 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.