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 |
|---|---|---|---|---|---|---|---|---|
| $450,000 | 1,056 | $426 | 5,136 | 1955 | Aug 18, 2026 | Single Family | 1 | |
| $659,500 | 1,260 | $523 | 11,000 | 1955 | Jul 31, 2026 | Single Family | 1 | |
| $65,000 | 1,600 | $41 | 7,571 | 1985 | Jul 30, 2026 | WAREHOUSES | 1 | |
| $613,000 | 1,232 | $498 | 2,835 | 2004 | Jul 22, 2026 | Single Family | 1 | |
| $750,000 | 1,730 | $434 | 11,168 | 1901 | Jul 22, 2026 | Single Family | 1 | |
| $659,000 | 1,600 | $412 | 2,300 | 2004 | Jul 22, 2026 | Single Family | 1 | |
| $510,000 | 910 | $560 | 4,320 | 1945 | Jul 21, 2026 | Single Family | 1 | |
| $790,000 | 2,030 | $389 | 5,700 | 1899 | Jul 10, 2026 | Single Family | 1 | |
| $200,000 | 1,264 | $158 | 5,436 | 1905 | Jul 7, 2026 | Single Family | 1 | |
| $599,000 | 1,693 | $354 | 7,040 | 1915 | Jun 29, 2026 | Single Family | 1 | |
| $316,000 | 1,200 | $263 | 700 | 1998 | Jun 26, 2026 | Single Family | 1 | |
| $585,000 | 1,403 | $417 | 1,386 | 1991 | Jun 22, 2026 | Single Family | 1 | |
| $630,000 | 1,185 | $532 | 5,000 | 1915 | Jun 15, 2026 | Single Family | 1 | |
| $778,961 | 1,500 | $519 | 2,500 | 2024 | Jun 12, 2026 | Single Family | 1 | |
| $600,000 | 1,200 | $500 | 1,650 | 2001 | Jun 3, 2026 | Single Family | 1 | |
| $730,000 | 1,500 | $487 | 2,500 | 2024 | May 29, 2026 | Single Family | 1 | |
| $300,000 | 1,634 | $184 | 4,759 | 2005 | May 29, 2026 | Two/Three Family | 2 | |
| $600,000 | 2,576 | $233 | 6,618 | 1915 | May 27, 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 | |
| $737,619 | 1,008 | $732 | 2,060 | 2005 | May 14, 2026 | Single Family | 1 | |
| $555,000 | — | — | — | 2004 | May 13, 2026 | Condo | 1 | |
| $620,000 | 1,244 | $498 | 7,752 | 1899 | May 8, 2026 | Single Family | 1 | |
| $585,000 | 1,300 | $450 | 1,555 | 2000 | May 8, 2026 | Single Family | 1 | |
| $820,000 | 1,584 | $518 | 3,250 | 2013 | May 7, 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.