Mariners Harbor / Graniteville
North ShoreSeller's Market
▼ Cooling
Composite score combining supply, pricing dynamics, and speed
Mariners Harbor / Graniteville is a seller's market. Homes sell in 56 days on average, 1% under asking.
Market Metrics
Pricing
Median Sale Price
$575K
↑ +0.1%YoY
Avg $/Sq Ft
$409
Sale-to-List Ratio
99.4%
% Over Asking
0.3%
% With Price Cuts
N/A
Speed
Median Days on Market
56 days
Sold in <14 Days
0.1%
Sold in <30 Days
N/A
Supply
Active Inventory
36
New Listings
N/A
Months of Supply
1.1
Absorption Rate
94.4%
Volume
Homes Sold
34
Adjust Assumptions
Mariners Harbor / Graniteville median: $574,765
Required in FEMA flood zones. Not all areas of SI need this.
Monthly Cost Breakdown
Zone AE — $2,000-$5,000/yr
Express Bus
$47,809/yr
Estimates for planning purposes. Actual costs may vary. Property tax uses a ~1% approximation; NYC assessments differ. Flood insurance ranges reflect typical NFIP premiums.
Price Trends
Median Sale Price
Avg Price Per Sq Ft
Days on Market
Median Days on Market
Sale-to-List Ratio
Sale-to-List Ratio
Supply & Demand
Supply & Demand
Property Types & Price Distribution
Property Types
Price Distribution
Flood Risk Assessment
Primary FEMA Zone
Zone X (minimal flood hazard)
Est. Annual Flood Insurance
$400 – $800 / year
Mariners Harbor has some tidal wetland areas near the Arthur Kill. Graniteville is mostly elevated and low-risk.
Look up your address on FEMA Flood Map ServiceRecent Sales
| Address | Sale Price | Sq Ft | $/Sq Ft | Land Sq Ft | Year Built | Sale Date▼ | Type | Units |
|---|---|---|---|---|---|---|---|---|
| $730,000 | 1,080 | $676 | 4,900 | 1955 | Mar 30, 2026 | Single Family | 1 | |
| $832,000 | 1,584 | $525 | 3,775 | 2006 | Mar 17, 2026 | Two/Three Family | 2 | |
| $330,000 | 1,326 | $249 | 3,600 | 1915 | Feb 27, 2026 | Single Family | 1 | |
| $300,000 | 5,587 | $54 | 7,150 | 1931 | Feb 25, 2026 | FACTORIES | 3 | |
| $900,000 | 3,330 | $270 | 7,800 | 1950 | Feb 25, 2026 | Elevator Rental | 4 | |
| $312,000 | — | — | — | 1988 | Feb 24, 2026 | Condo | 1 | |
| $575,000 | 2,250 | $256 | 6,271 | 1910 | Feb 18, 2026 | Two/Three Family | 2 | |
| $525,000 | 1,672 | $314 | 5,800 | 1899 | Feb 13, 2026 | Single Family | 1 | |
| $440,000 | 1,204 | $365 | 2,002 | 2004 | Feb 9, 2026 | Single Family | 1 | |
| $515,000 | 1,062 | $485 | 2,550 | 1899 | Feb 5, 2026 | Two/Three Family | 2 | |
| $555,000 | 1,008 | $551 | 4,320 | 1960 | Feb 4, 2026 | Single Family | 1 | |
| $580,000 | 1,638 | $354 | 4,280 | 1960 | Jan 30, 2026 | Single Family | 1 | |
| $710,000 | 1,837 | $387 | 5,693 | 1955 | Jan 30, 2026 | Single Family | 1 | |
| $540,000 | 1,704 | $317 | 7,250 | 1925 | Jan 28, 2026 | Single Family | 1 | |
| $621,500 | 1,280 | $486 | 4,646 | 1960 | Jan 27, 2026 | Single Family | 1 | |
| $250,000 | 1,368 | $183 | 3,400 | 1910 | Jan 26, 2026 | Two/Three Family | 2 | |
| $440,000 | 968 | $455 | 798 | 1992 | Jan 12, 2026 | Single Family | 1 | |
| $435,000 | 1,495 | $291 | 2,500 | 1931 | Jan 5, 2026 | STORE BUILDINGS | 1 | |
| $480,000 | 1,344 | $357 | 4,095 | 1955 | Dec 30, 2025 | Single Family | 1 | |
| $580,403 | 1,518 | $382 | 2,288 | 2007 | Dec 23, 2025 | Single Family | 1 | |
| $450,000 | 2,132 | $211 | 7,482 | 1899 | Dec 22, 2025 | Two/Three Family | 2 | |
| $643,000 | 1,500 | $429 | 2,500 | 1993 | Dec 22, 2025 | Single Family | 1 | |
| $610,000 | 1,200 | $508 | 1,316 | 2001 | Dec 19, 2025 | Single Family | 1 | |
| $684,210 | 2,112 | $324 | 5,700 | 1925 | Dec 11, 2025 | Two/Three Family | 2 | |
| $525,000 | 1,300 | $404 | 1,100 | 1910 | Dec 8, 2025 | Two/Three Family | 2 |
Showing 25 of 100 sales
Neighborhood Profile
Population
27,400
Median Income
$50,000
Owner-Occupied
38.0%
Median Age
34.0
Owner vs Renter
Ferry service available from St. George only
Via Verrazzano-Narrows Bridge
Estimated one-way travel times to Lower Manhattan during weekday rush hour.