Mariners Harbor / Graniteville
North ShoreSeller's Market
● Stable
Composite score combining supply, pricing dynamics, and speed
Mariners Harbor / Graniteville is a seller's market. Homes sell in 58 days on average, 1% under asking.
Market Metrics
Pricing
Median Sale Price
$558K
↑ +0.1%YoY
Avg $/Sq Ft
$431
Sale-to-List Ratio
99.2%
% Over Asking
0.3%
% With Price Cuts
N/A
Speed
Median Days on Market
58 days
Sold in <14 Days
0.2%
Sold in <30 Days
N/A
Supply
Active Inventory
35
New Listings
N/A
Months of Supply
1.1
Absorption Rate
94.3%
Volume
Homes Sold
33
Adjust Assumptions
Mariners Harbor / Graniteville median: $558,273
Required in FEMA flood zones. Not all areas of SI need this.
Monthly Cost Breakdown
Zone AE — $2,000-$5,000/yr
Express Bus
$46,586/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 | 1,500 | $487 | 2,500 | 2024 | May 29, 2026 | Single Family | 1 | |
| $540,000 | 1,250 | $432 | 2,520 | 1965 | May 21, 2026 | Single Family | 1 | |
| $540,000 | 1,192 | $453 | 5,355 | 1925 | May 19, 2026 | Single Family | 1 | |
| $555,000 | — | — | — | 2004 | May 13, 2026 | Condo | 1 | |
| $585,000 | 1,300 | $450 | 1,555 | 2000 | May 8, 2026 | Single Family | 1 | |
| $620,000 | 1,244 | $498 | 7,752 | 1899 | May 8, 2026 | Single Family | 1 | |
| $820,000 | 1,584 | $518 | 3,250 | 2013 | May 7, 2026 | Two/Three Family | 2 | |
| $310,000 | — | — | 3,750 | — | May 1, 2026 | Vacant Land | 0 | |
| $310,000 | — | — | 3,750 | — | May 1, 2026 | Vacant Land | 0 | |
| $660,000 | 1,176 | $561 | 1,508 | 2004 | May 1, 2026 | Two/Three Family | 2 | |
| $718,000 | 1,348 | $533 | 5,063 | 1920 | Apr 29, 2026 | Two/Three Family | 2 | |
| $580,000 | 1,300 | $446 | 1,340 | 2000 | Apr 24, 2026 | Single Family | 1 | |
| $715,000 | 1,350 | $530 | 1,365 | 2000 | Apr 15, 2026 | Two/Three Family | 2 | |
| $440,000 | 1,350 | $326 | 1,500 | 2000 | Apr 13, 2026 | Two/Three Family | 2 | |
| $540,000 | 1,020 | $529 | 5,472 | 1910 | Apr 13, 2026 | Single Family | 1 | |
| $423,000 | 1,408 | $300 | 1,136 | 1899 | Apr 10, 2026 | Single Family | 1 | |
| $475,000 | 1,470 | $323 | 1,280 | 1992 | Apr 1, 2026 | Single Family | 1 | |
| $790,000 | 1,920 | $411 | 5,355 | 1930 | Mar 31, 2026 | Two/Three Family | 2 | |
| $730,000 | 1,080 | $676 | 4,900 | 1955 | Mar 30, 2026 | Single Family | 1 | |
| $400,000 | 1,408 | $284 | 1,136 | 1899 | Mar 30, 2026 | Single Family | 1 | |
| $545,000 | 1,000 | $545 | 4,220 | 1997 | Mar 27, 2026 | Single Family | 1 | |
| $465,000 | 1,974 | $236 | 7,752 | 1915 | Mar 24, 2026 | Single Family | 1 | |
| $400,000 | 1,403 | $285 | 1,386 | 1991 | Mar 23, 2026 | Single Family | 1 | |
| $832,000 | 1,584 | $525 | 3,775 | 2006 | Mar 17, 2026 | Two/Three Family | 2 | |
| $770,000 | 1,800 | $428 | 3,375 | 1989 | Mar 13, 2026 | 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.